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Alerts Issued in July 2012


Space Weather Message Code: ALTTP2
Serial Number: 815
Issue Time: 2012 Jul 31 2246 UTC

ALERT: Type II Radio Emission
Begin Time: 2012 Jul 31 2209 UTC
Estimated Velocity: 709 km/s
Description: Type II emissions occur in association with eruptions on the sun and typically indicate a coronal mass ejection is associated with a flare event.


Space Weather Message Code: ALTTP2
Serial Number: 814
Issue Time: 2012 Jul 31 1756 UTC

ALERT: Type II Radio Emission
Begin Time: 2012 Jul 31 1725 UTC
Estimated Velocity: 592 km/s
Description: Type II emissions occur in association with eruptions on the sun and typically indicate a coronal mass ejection is associated with a flare event.


Space Weather Message Code: ALTTP4
Serial Number: 390
Issue Time: 2012 Jul 31 1338 UTC

ALERT: Type IV Radio Emission
Begin Time: 2012 Jul 31 1104 UTC
Description: Type IV emissions occur in association with major eruptions on the sun and are typically associated with strong coronal mass ejections and solar radiation storms.


Space Weather Message Code: ALTTP2
Serial Number: 813
Issue Time: 2012 Jul 31 1158 UTC

ALERT: Type II Radio Emission
Begin Time: 2012 Jul 31 1104 UTC
Estimated Velocity: 880 km/s
Description: Type II emissions occur in association with eruptions on the sun and typically indicate a coronal mass ejection is associated with a flare event.


Space Weather Message Code: ALTTP4
Serial Number: 389
Issue Time: 2012 Jul 31 0100 UTC

ALERT: Type IV Radio Emission
Begin Time: 2012 Jul 31 0011 UTC
Description: Type IV emissions occur in association with major eruptions on the sun and are typically associated with strong coronal mass ejections and solar radiation storms.


Space Weather Message Code: ALTTP2
Serial Number: 812
Issue Time: 2012 Jul 31 0048 UTC

ALERT: Type II Radio Emission
Begin Time: 2012 Jul 31 0000 UTC
Estimated Velocity: 730 km/s
Description: Type II emissions occur in association with eruptions on the sun and typically indicate a coronal mass ejection is associated with a flare event.


Space Weather Message Code: ALTK04
Serial Number: 1600
Issue Time: 2012 Jul 30 1802 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2012 Jul 30 1759 UTC
Synoptic Period: 1500-1800 UTC
Active Warning: Yes
Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.


Space Weather Message Code: WARK04
Serial Number: 1984
Issue Time: 2012 Jul 30 1717 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2012 Jul 30 1716 UTC
Valid To: 2012 Jul 31 0100 UTC
Warning Condition: Onset
Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.


Space Weather Message Code: ALTTP4
Serial Number: 388
Issue Time: 2012 Jul 30 1103 UTC

ALERT: Type IV Radio Emission
Begin Time: 2012 Jul 30 0833 UTC
Description: Type IV emissions occur in association with major eruptions on the sun and are typically associated with strong coronal mass ejections and solar radiation storms.


Space Weather Message Code: ALTTP4
Serial Number: 387
Issue Time: 2012 Jul 29 0700 UTC

ALERT: Type IV Radio Emission
Begin Time: 2012 Jul 29 0623 UTC
Description: Type IV emissions occur in association with major eruptions on the sun and are typically associated with strong coronal mass ejections and solar radiation storms.


Space Weather Message Code: SUM10R
Serial Number: 562
Issue Time: 2012 Jul 29 0635 UTC

SUMMARY: 10cm Radio Burst
Begin Time: 2012 Jul 29 0618 UTC
Maximum Time: 2012 Jul 29 0620 UTC
End Time: 2012 Jul 29 0620 UTC
Duration: 2 minutes
Peak Flux: 130 sfu
Latest Penticton Noon Flux: 127 sfu
Description: A 10cm radio burst indicates that the electromagnetic burst associated with a solar flare at the 10cm wavelength was double or greater than the initial 10cm radio background. This can be indicative of significant radio noise in association with a solar flare. This noise is generally short-lived but can cause interference for sensitive receivers including radar, GPS, and satellite communications.


Space Weather Message Code: WARK04
Serial Number: 1983
Issue Time: 2012 Jul 28 2321 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 1982
Valid From: 2012 Jul 28 1917 UTC
Now Valid Until: 2012 Jul 29 0700 UTC
Warning Condition: Persistence
Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.


Space Weather Message Code: ALTK04
Serial Number: 1599
Issue Time: 2012 Jul 28 2245 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2012 Jul 28 2244 UTC
Synoptic Period: 2100-2400 UTC
Active Warning: Yes
Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.


Space Weather Message Code: ALTTP4
Serial Number: 386
Issue Time: 2012 Jul 28 2234 UTC

ALERT: Type IV Radio Emission
Begin Time: 2012 Jul 28 2104 UTC
Description: Type IV emissions occur in association with major eruptions on the sun and are typically associated with strong coronal mass ejections and solar radiation storms.


Space Weather Message Code: ALTTP2
Serial Number: 811
Issue Time: 2012 Jul 28 2234 UTC

ALERT: Type II Radio Emission
Begin Time: 2012 Jul 28 2052 UTC
Estimated Velocity: 1387 km/s
Description: Type II emissions occur in association with eruptions on the sun and typically indicate a coronal mass ejection is associated with a flare event.


Space Weather Message Code: SUMXM5
Serial Number: 96
Issue Time: 2012 Jul 28 2120 UTC

SUMMARY: X-ray Event exceeded M5
Begin Time: 2012 Jul 28 2044 UTC
Maximum Time: 2012 Jul 28 2056 UTC
End Time: 2012 Jul 28 2104 UTC
X-ray Class: M6.1
Optical Class: 2n
Location: S25E54
NOAA Scale: R2 - Moderate
Potential Impacts: Area of impact centered primarily on sub-solar point on the sunlit side of Earth.
Radio - Limited blackout of HF (high frequency) radio communication for tens of minutes.


Space Weather Message Code: SUM10R
Serial Number: 561
Issue Time: 2012 Jul 28 2107 UTC

SUMMARY: 10cm Radio Burst
Begin Time: 2012 Jul 28 2049 UTC
Maximum Time: 2012 Jul 28 2050 UTC
End Time: 2012 Jul 28 2055 UTC
Duration: 6 minutes
Peak Flux: 370 sfu
Latest Penticton Noon Flux: 127 sfu
Description: A 10cm radio burst indicates that the electromagnetic burst associated with a solar flare at the 10cm wavelength was double or greater than the initial 10cm radio background. This can be indicative of significant radio noise in association with a solar flare. This noise is generally short-lived but can cause interference for sensitive receivers including radar, GPS, and satellite communications.


Space Weather Message Code: ALTXMF
Serial Number: 179
Issue Time: 2012 Jul 28 2054 UTC

ALERT: X-Ray Flux exceeded M5
Threshold Reached: 2012 Jul 28 2054 UTC
NOAA Scale: R2 - Moderate
Potential Impacts: Area of impact centered on sub-solar point on the sunlit side of Earth. Extent of blackout of HF (high frequency) radio communication dependent upon current X-ray Flux intensity. For real-time information on affected area and expected duration please see http://www.swpc.noaa.gov/drap/index.html.


Space Weather Message Code: WARK04
Serial Number: 1982
Issue Time: 2012 Jul 28 1917 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2012 Jul 28 1917 UTC
Valid To: 2012 Jul 29 0000 UTC
Warning Condition: Onset
Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.


Space Weather Message Code: ALTEF3
Serial Number: 1945
Issue Time: 2012 Jul 28 1215 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 1944
Begin Time: 2012 Jul 23 1225 UTC
Yesterday Maximum 2MeV Flux: 1905 pfu
Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.


Space Weather Message Code: ALTTP4
Serial Number: 385
Issue Time: 2012 Jul 27 1852 UTC

ALERT: Type IV Radio Emission
Begin Time: 2012 Jul 27 1734 UTC
Description: Type IV emissions occur in association with major eruptions on the sun and are typically associated with strong coronal mass ejections and solar radiation storms.


Space Weather Message Code: ALTTP2
Serial Number: 810
Issue Time: 2012 Jul 27 1833 UTC

ALERT: Type II Radio Emission
Begin Time: 2012 Jul 27 1721 UTC
Estimated Velocity: 2099 km/s
Description: Type II emissions occur in association with eruptions on the sun and typically indicate a coronal mass ejection is associated with a flare event.


Space Weather Message Code: SUM10R
Serial Number: 560
Issue Time: 2012 Jul 27 1739 UTC

SUMMARY: 10cm Radio Burst
Begin Time: 2012 Jul 27 1720 UTC
Maximum Time: 2012 Jul 27 1721 UTC
End Time: 2012 Jul 27 1723 UTC
Duration: 3 minutes
Peak Flux: 340 sfu
Latest Penticton Noon Flux: 115 sfu
Description: A 10cm radio burst indicates that the electromagnetic burst associated with a solar flare at the 10cm wavelength was double or greater than the initial 10cm radio background. This can be indicative of significant radio noise in association with a solar flare. This noise is generally short-lived but can cause interference for sensitive receivers including radar, GPS, and satellite communications.


Space Weather Message Code: ALTEF3
Serial Number: 1944
Issue Time: 2012 Jul 27 0856 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 1943
Begin Time: 2012 Jul 23 1225 UTC
Yesterday Maximum 2MeV Flux: 1953 pfu
Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.


Space Weather Message Code: ALTEF3
Serial Number: 1943
Issue Time: 2012 Jul 26 0946 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 1942
Begin Time: 2012 Jul 23 1225 UTC
Yesterday Maximum 2MeV Flux: 1907 pfu
Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.


Space Weather Message Code: SUMPX1
Serial Number: 62
Issue Time: 2012 Jul 26 0536 UTC

SUMMARY: Proton Event 10MeV Integral Flux exceeded 10pfu
Begin Time: 2012 Jul 24 0720 UTC
Maximum Time: 2012 Jul 24 0720 UTC
End Time: 2012 Jul 24 1800 UTC
Maximum 10MeV Flux: 11 pfu
NOAA Scale: S1 - Minor


Space Weather Message Code: ALTEF3
Serial Number: 1942
Issue Time: 2012 Jul 25 1247 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 1941
Begin Time: 2012 Jul 23 1225 UTC
Yesterday Maximum 2MeV Flux: 1720 pfu
Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.


Space Weather Message Code: WARPX1
Serial Number: 378
Issue Time: 2012 Jul 24 1857 UTC

EXTENDED WARNING: Proton 10MeV Integral Flux above 10pfu expected
Extension to Serial Number: 377
Valid From: 2012 Jul 24 0720 UTC
Now Valid Until: 2012 Jul 24 2359 UTC
Warning Condition: Persistence
Predicted NOAA Scale: S1 - Minor
Potential Impacts: Radio - Minor impacts on polar HF (high frequency) radio propagation resulting in fades at lower frequencies.


Space Weather Message Code: SUM10R
Serial Number: 559
Issue Time: 2012 Jul 24 1530 UTC

SUMMARY: 10cm Radio Burst
Begin Time: 2012 Jul 24 1343 UTC
Maximum Time: 2012 Jul 24 1345 UTC
End Time: 2012 Jul 24 1348 UTC
Duration: 5 minutes
Peak Flux: 260 sfu
Latest Penticton Noon Flux: 97 sfu
Description: A 10cm radio burst indicates that the electromagnetic burst associated with a solar flare at the 10cm wavelength was double or greater than the initial 10cm radio background. This can be indicative of significant radio noise in association with a solar flare. This noise is generally short-lived but can cause interference for sensitive receivers including radar, GPS, and satellite communications.


Space Weather Message Code: ALTEF3
Serial Number: 1941
Issue Time: 2012 Jul 24 1306 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 1940
Begin Time: 2012 Jul 23 1225 UTC
Yesterday Maximum 2MeV Flux: 2964 pfu
Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.


Space Weather Message Code: WARPX1
Serial Number: 377
Issue Time: 2012 Jul 24 0748 UTC

WARNING: Proton 10MeV Integral Flux above 10pfu expected
Valid From: 2012 Jul 24 0720 UTC
Valid To: 2012 Jul 24 1900 UTC
Warning Condition: Onset
Predicted NOAA Scale: S1 - Minor
Potential Impacts: Radio - Minor impacts on polar HF (high frequency) radio propagation resulting in fades at lower frequencies.


Space Weather Message Code: ALTPX1
Serial Number: 295
Issue Time: 2012 Jul 24 0748 UTC

ALERT: Proton Event 10MeV Integral Flux exceeded 10pfu
Begin Time: 2012 Jul 24 0720 UTC
NOAA Scale: S1 - Minor
Potential Impacts: Radio - Minor impacts on polar HF (high frequency) radio propagation resulting in fades at lower frequencies.


Space Weather Message Code: SUMPX1
Serial Number: 61
Issue Time: 2012 Jul 24 0508 UTC

SUMMARY: Proton Event 10MeV Integral Flux exceeded 10pfu
Begin Time: 2012 Jul 23 1545 UTC
Maximum Time: 2012 Jul 23 2145 UTC
End Time: 2012 Jul 24 0005 UTC
Maximum 10MeV Flux: 12 pfu
NOAA Scale: S1 - Minor


Space Weather Message Code: WARPX1
Serial Number: 375
Issue Time: 2012 Jul 23 2255 UTC

EXTENDED WARNING: Proton 10MeV Integral Flux above 10pfu expected
Extension to Serial Number: 374
Valid From: 2012 Jul 23 1100 UTC
Now Valid Until: 2012 Jul 24 0600 UTC
Warning Condition: Persistence
Predicted NOAA Scale: S1 - Minor
Potential Impacts: Radio - Minor impacts on polar HF (high frequency) radio propagation resulting in fades at lower frequencies.


Space Weather Message Code: ALTPX1
Serial Number: 294
Issue Time: 2012 Jul 23 1605 UTC

ALERT: Proton Event 10MeV Integral Flux exceeded 10pfu
Begin Time: 2012 Jul 23 1545 UTC
NOAA Scale: S1 - Minor
Potential Impacts: Radio - Minor impacts on polar HF (high frequency) radio propagation resulting in fades at lower frequencies.


Space Weather Message Code: ALTEF3
Serial Number: 1940
Issue Time: 2012 Jul 23 1250 UTC

ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Threshold Reached: 2012 Jul 23 1225 UTC
Station: GOES13
Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.


Space Weather Message Code: WARPX1
Serial Number: 374
Issue Time: 2012 Jul 23 1101 UTC

WARNING: Proton 10MeV Integral Flux above 10pfu expected
Valid From: 2012 Jul 23 1100 UTC
Valid To: 2012 Jul 23 2300 UTC
Warning Condition: Onset
Predicted NOAA Scale: S1 - Minor
Potential Impacts: Radio - Minor impacts on polar HF (high frequency) radio propagation resulting in fades at lower frequencies.


Space Weather Message Code: ALTEF3
Serial Number: 1939
Issue Time: 2012 Jul 21 1337 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 1938
Begin Time: 2012 Jul 17 1005 UTC
Yesterday Maximum 2MeV Flux: 7530 pfu
Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.


Space Weather Message Code: SUMPX1
Serial Number: 60
Issue Time: 2012 Jul 21 1134 UTC

SUMMARY: Proton Event 10MeV Integral Flux exceeded 10pfu
Begin Time: 2012 Jul 17 1715 UTC
Maximum Time: 2012 Jul 18 0600 UTC
End Time: 2012 Jul 21 0310 UTC
Maximum 10MeV Flux: 136 pfu
NOAA Scale: S2 - Moderate


Space Weather Message Code: WARPX1
Serial Number: 373
Issue Time: 2012 Jul 21 0039 UTC

EXTENDED WARNING: Proton 10MeV Integral Flux above 10pfu expected
Extension to Serial Number: 372
Valid From: 2012 Jul 17 1630 UTC
Now Valid Until: 2012 Jul 21 1200 UTC
Warning Condition: Persistence
Predicted NOAA Scale: S1 - Minor
Potential Impacts: Radio - Minor impacts on polar HF (high frequency) radio propagation resulting in fades at lower frequencies.


Space Weather Message Code: WARPX1
Serial Number: 372
Issue Time: 2012 Jul 20 1255 UTC

EXTENDED WARNING: Proton 10MeV Integral Flux above 10pfu expected
Extension to Serial Number: 371
Valid From: 2012 Jul 17 1630 UTC
Now Valid Until: 2012 Jul 21 0100 UTC
Warning Condition: Persistence
Predicted NOAA Scale: S1 - Minor
Potential Impacts: Radio - Minor impacts on polar HF (high frequency) radio propagation resulting in fades at lower frequencies.


Space Weather Message Code: ALTEF3
Serial Number: 1938
Issue Time: 2012 Jul 20 0521 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 1937
Begin Time: 2012 Jul 17 1005 UTC
Yesterday Maximum 2MeV Flux: 12432 pfu
Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.


Space Weather Message Code: WARK04
Serial Number: 1981
Issue Time: 2012 Jul 20 0457 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2012 Jul 20 0457 UTC
Valid To: 2012 Jul 20 1300 UTC
Warning Condition: Onset
Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.


Space Weather Message Code: WARPX1
Serial Number: 371
Issue Time: 2012 Jul 19 2059 UTC

EXTENDED WARNING: Proton 10MeV Integral Flux above 10pfu expected
Extension to Serial Number: 370
Valid From: 2012 Jul 17 1630 UTC
Now Valid Until: 2012 Jul 20 1300 UTC
Warning Condition: Persistence
Predicted NOAA Scale: S1 - Minor
Potential Impacts: Radio - Minor impacts on polar HF (high frequency) radio propagation resulting in fades at lower frequencies.


Space Weather Message Code: WARPX1
Serial Number: 370
Issue Time: 2012 Jul 19 1240 UTC

EXTENDED WARNING: Proton 10MeV Integral Flux above 10pfu expected
Extension to Serial Number: 369
Valid From: 2012 Jul 17 1630 UTC
Now Valid Until: 2012 Jul 19 2359 UTC
Warning Condition: Persistence
Predicted NOAA Scale: S1 - Minor
Potential Impacts: Radio - Minor impacts on polar HF (high frequency) radio propagation resulting in fades at lower frequencies.


Space Weather Message Code: SUMXM5
Serial Number: 95
Issue Time: 2012 Jul 19 0659 UTC

SUMMARY: X-ray Event exceeded M5
Begin Time: 2012 Jul 19 0417 UTC
Maximum Time: 2012 Jul 19 0558 UTC
End Time: 2012 Jul 19 0656 UTC
X-ray Class: M7.7
Location: S16W90
NOAA Scale: R2 - Moderate

Comment: No optical flare was visible from Learmonth or San Vito.
Potential Impacts: Area of impact centered primarily on sub-solar point on the sunlit side of Earth.
Radio - Limited blackout of HF (high frequency) radio communication for tens of minutes.


Space Weather Message Code: SUM10R
Serial Number: 558
Issue Time: 2012 Jul 19 0633 UTC

SUMMARY: 10cm Radio Burst
Begin Time: 2012 Jul 19 0517 UTC
Maximum Time: 2012 Jul 19 0521 UTC
End Time: 2012 Jul 19 0601 UTC
Duration: 44 minutes
Peak Flux: 1100 sfu
Latest Penticton Noon Flux: 110 sfu
Description: A 10cm radio burst indicates that the electromagnetic burst associated with a solar flare at the 10cm wavelength was double or greater than the initial 10cm radio background. This can be indicative of significant radio noise in association with a solar flare. This noise is generally short-lived but can cause interference for sensitive receivers including radar, GPS, and satellite communications.


Space Weather Message Code: ALTTP4
Serial Number: 384
Issue Time: 2012 Jul 19 0607 UTC

ALERT: Type IV Radio Emission
Begin Time: 2012 Jul 19 0525 UTC
Description: Type IV emissions occur in association with major eruptions on the sun and are typically associated with strong coronal mass ejections and solar radiation storms.


Space Weather Message Code: ALTTP2
Serial Number: 809
Issue Time: 2012 Jul 19 0553 UTC

ALERT: Type II Radio Emission
Begin Time: 2012 Jul 19 0524 UTC
Estimated Velocity: 1110 km/s
Description: Type II emissions occur in association with eruptions on the sun and typically indicate a coronal mass ejection is associated with a flare event.


Space Weather Message Code: ALTXMF
Serial Number: 178
Issue Time: 2012 Jul 19 0531 UTC

ALERT: X-Ray Flux exceeded M5
Threshold Reached: 2012 Jul 19 0530 UTC
NOAA Scale: R2 - Moderate
Potential Impacts: Area of impact centered on sub-solar point on the sunlit side of Earth. Extent of blackout of HF (high frequency) radio communication dependent upon current X-ray Flux intensity. For real-time information on affected area and expected duration please see http://www.swpc.noaa.gov/drap/index.html.


Space Weather Message Code: ALTEF3
Serial Number: 1937
Issue Time: 2012 Jul 19 0503 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 1936
Begin Time: 2012 Jul 17 1005 UTC
Yesterday Maximum 2MeV Flux: 6896 pfu
Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.


Space Weather Message Code: WARPX1
Serial Number: 369
Issue Time: 2012 Jul 18 2203 UTC

EXTENDED WARNING: Proton 10MeV Integral Flux above 10pfu expected
Extension to Serial Number: 368
Valid From: 2012 Jul 17 1630 UTC
Now Valid Until: 2012 Jul 19 1200 UTC
Warning Condition: Persistence
Predicted NOAA Scale: S1 - Minor
Potential Impacts: Radio - Minor impacts on polar HF (high frequency) radio propagation resulting in fades at lower frequencies.


Space Weather Message Code: WARPX1
Serial Number: 368
Issue Time: 2012 Jul 18 2053 UTC

EXTENDED WARNING: Proton 10MeV Integral Flux above 10pfu expected
Extension to Serial Number: 367
Valid From: 2012 Jul 17 1630 UTC
Now Valid Until: 2012 Jul 18 1200 UTC
Warning Condition: Persistence
Predicted NOAA Scale: S1 - Minor
Potential Impacts: Radio - Minor impacts on polar HF (high frequency) radio propagation resulting in fades at lower frequencies.


Space Weather Message Code: WARPX1
Serial Number: 367
Issue Time: 2012 Jul 18 1155 UTC

EXTENDED WARNING: Proton 10MeV Integral Flux above 10pfu expected
Extension to Serial Number: 366
Valid From: 2012 Jul 17 1630 UTC
Now Valid Until: 2012 Jul 18 2100 UTC
Warning Condition: Persistence
Predicted NOAA Scale: S1 - Minor
Potential Impacts: Radio - Minor impacts on polar HF (high frequency) radio propagation resulting in fades at lower frequencies.


Space Weather Message Code: SUMPX2
Serial Number: 32
Issue Time: 2012 Jul 18 1107 UTC

SUMMARY: Proton Event 10MeV Integral Flux exceeded 100pfu
Begin Time: 2012 Jul 18 0440 UTC
Maximum Time: 2012 Jul 18 0600 UTC
End Time: 2012 Jul 18 0645 UTC
Maximum 10MeV Flux: 136 pfu
NOAA Scale: S2 - Moderate


Space Weather Message Code: ALTEF3
Serial Number: 1936
Issue Time: 2012 Jul 18 0531 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 1935
Begin Time: 2012 Jul 17 1005 UTC
Yesterday Maximum 2MeV Flux: 4396 pfu
Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.


Space Weather Message Code: ALTPX2
Serial Number: 51
Issue Time: 2012 Jul 18 0456 UTC

ALERT: Proton Event 10MeV Integral Flux exceeded 100pfu
Begin Time: 2012 Jul 18 0440 UTC
NOAA Scale: S2 - Moderate
Potential Impacts: Radiation - Passengers and crew in high latitude, high altitude flights may experience small, increased radiation exposures.
Spacecraft - Infrequent single-event upsets to satellites are possible.
Radio - Small effects on polar HF (high frequency) propagation resulting in fades at lower frequencies.


Space Weather Message Code: WARPX1
Serial Number: 366
Issue Time: 2012 Jul 17 2311 UTC

EXTENDED WARNING: Proton 10MeV Integral Flux above 10pfu expected
Extension to Serial Number: 365
Valid From: 2012 Jul 17 1630 UTC
Now Valid Until: 2012 Jul 18 1200 UTC
Warning Condition: Persistence
Predicted NOAA Scale: S2 - Moderate

Comment: This extension is to upgrade the current S1 Warning to an S2 Warning.
Potential Impacts: Radio - Minor impacts on polar HF (high frequency) radio propagation resulting in fades at lower frequencies.


Space Weather Message Code: ALTPX1
Serial Number: 293
Issue Time: 2012 Jul 17 1731 UTC

ALERT: Proton Event 10MeV Integral Flux exceeded 10pfu
Begin Time: 2012 Jul 17 1715 UTC
NOAA Scale: S1 - Minor
Potential Impacts: Radio - Minor impacts on polar HF (high frequency) radio propagation resulting in fades at lower frequencies.


Space Weather Message Code: WARPX1
Serial Number: 365
Issue Time: 2012 Jul 17 1625 UTC

WARNING: Proton 10MeV Integral Flux above 10pfu expected
Valid From: 2012 Jul 17 1630 UTC
Valid To: 2012 Jul 18 1200 UTC
Warning Condition: Onset
Predicted NOAA Scale: S1 - Minor
Potential Impacts: Radio - Minor impacts on polar HF (high frequency) radio propagation resulting in fades at lower frequencies.


Space Weather Message Code: ALTEF3
Serial Number: 1935
Issue Time: 2012 Jul 17 1022 UTC

ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Threshold Reached: 2012 Jul 17 1005 UTC
Station: GOES 13
Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.


Space Weather Message Code: WARK04
Serial Number: 1980
Issue Time: 2012 Jul 17 0959 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 1979
Valid From: 2012 Jul 17 0335 UTC
Now Valid Until: 2012 Jul 17 1500 UTC
Warning Condition: Persistence
Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.


Space Weather Message Code: ALTK04
Serial Number: 1598
Issue Time: 2012 Jul 17 0425 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2012 Jul 17 0423 UTC
Synoptic Period: 0300-0600 UTC
Active Warning: Yes
Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.


Space Weather Message Code: WARK04
Serial Number: 1979
Issue Time: 2012 Jul 17 0337 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2012 Jul 17 0335 UTC
Valid To: 2012 Jul 17 1000 UTC
Warning Condition: Onset
Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.


Space Weather Message Code: WARK04
Serial Number: 1978
Issue Time: 2012 Jul 16 1249 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 1977
Valid From: 2012 Jul 14 1740 UTC
Now Valid Until: 2012 Jul 16 1800 UTC
Warning Condition: Persistence
Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.


Space Weather Message Code: ALTK06
Serial Number: 290
Issue Time: 2012 Jul 16 0211 UTC

ALERT: Geomagnetic K-index of 6
Threshold Reached: 2012 Jul 16 0207 UTC
Synoptic Period: 0000-0300 UTC
Active Warning: Yes
NOAA Scale: G2 - Moderate
Potential Impacts: Area of impact primarily poleward of 55 degrees Geomagnetic Latitude.
Induced Currents - Power grid fluctuations can occur. High-latitude power systems may experience voltage alarms.
Spacecraft - Satellite orientation irregularities may occur; increased drag on low Earth-orbit satellites is possible.
Radio - HF (high frequency) radio propagation can fade at higher latitudes.
Aurora - Aurora may be seen as low as New York to Wisconsin to Washington state.


Space Weather Message Code: WARK06
Serial Number: 206
Issue Time: 2012 Jul 16 0211 UTC

EXTENDED WARNING: Geomagnetic K-Index of 6 expected
Extension to Serial Number: 205
Valid From: 2012 Jul 15 1705 UTC
Now Valid Until: 2012 Jul 16 0900 UTC
Warning Condition: Persistence
Potential Impacts: Area of impact primarily poleward of 55 degrees Geomagnetic Latitude.
Induced Currents - Power grid fluctuations can occur. High-latitude power systems may experience voltage alarms.
Spacecraft - Satellite orientation irregularities may occur; increased drag on low Earth-orbit satellites is possible.
Radio - HF (high frequency) radio propagation can fade at higher latitudes.
Aurora - Aurora may be seen as low as New York to Wisconsin to Washington state.


Space Weather Message Code: WARK06
Serial Number: 205
Issue Time: 2012 Jul 15 2347 UTC

EXTENDED WARNING: Geomagnetic K-Index of 6 expected
Extension to Serial Number: 204
Valid From: 2012 Jul 15 1705 UTC
Now Valid Until: 2012 Jul 16 0300 UTC
Warning Condition: Persistence
Potential Impacts: Area of impact primarily poleward of 55 degrees Geomagnetic Latitude.
Induced Currents - Power grid fluctuations can occur. High-latitude power systems may experience voltage alarms.
Spacecraft - Satellite orientation irregularities may occur; increased drag on low Earth-orbit satellites is possible.
Radio - HF (high frequency) radio propagation can fade at higher latitudes.
Aurora - Aurora may be seen as low as New York to Wisconsin to Washington state.


Space Weather Message Code: WARK05
Serial Number: 794
Issue Time: 2012 Jul 15 2347 UTC

EXTENDED WARNING: Geomagnetic K-index of 5 expected
Extension to Serial Number: 793
Valid From: 2012 Jul 14 1740 UTC
Now Valid Until: 2012 Jul 16 1300 UTC
Warning Condition: Persistence
Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.


Space Weather Message Code: WARK04
Serial Number: 1977
Issue Time: 2012 Jul 15 2347 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 1976
Valid From: 2012 Jul 14 1740 UTC
Now Valid Until: 2012 Jul 16 1300 UTC
Warning Condition: Persistence
Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.


Space Weather Message Code: ALTK06
Serial Number: 289
Issue Time: 2012 Jul 15 2047 UTC

ALERT: Geomagnetic K-index of 6
Threshold Reached: 2012 Jul 15 2046 UTC
Synoptic Period: 1800-2100 UTC
Active Warning: Yes
NOAA Scale: G2 - Moderate
Potential Impacts: Area of impact primarily poleward of 55 degrees Geomagnetic Latitude.
Induced Currents - Power grid fluctuations can occur. High-latitude power systems may experience voltage alarms.
Spacecraft - Satellite orientation irregularities may occur; increased drag on low Earth-orbit satellites is possible.
Radio - HF (high frequency) radio propagation can fade at higher latitudes.
Aurora - Aurora may be seen as low as New York to Wisconsin to Washington state.


Space Weather Message Code: WARK06
Serial Number: 204
Issue Time: 2012 Jul 15 2047 UTC

EXTENDED WARNING: Geomagnetic K-Index of 6 expected
Extension to Serial Number: 203
Valid From: 2012 Jul 15 1705 UTC
Now Valid Until: 2012 Jul 16 0000 UTC
Warning Condition: Persistence
Potential Impacts: Area of impact primarily poleward of 55 degrees Geomagnetic Latitude.
Induced Currents - Power grid fluctuations can occur. High-latitude power systems may experience voltage alarms.
Spacecraft - Satellite orientation irregularities may occur; increased drag on low Earth-orbit satellites is possible.
Radio - HF (high frequency) radio propagation can fade at higher latitudes.
Aurora - Aurora may be seen as low as New York to Wisconsin to Washington state.


Space Weather Message Code: WARK06
Serial Number: 203
Issue Time: 2012 Jul 15 1703 UTC

WARNING: Geomagnetic K-Index of 6 expected
Valid From: 2012 Jul 15 1705 UTC
Valid To: 2012 Jul 15 2100 UTC
Warning Condition: Persistence
NOAA Scale: G2 - Moderate
Potential Impacts: Area of impact primarily poleward of 55 degrees Geomagnetic Latitude.
Induced Currents - Power grid fluctuations can occur. High-latitude power systems may experience voltage alarms.
Spacecraft - Satellite orientation irregularities may occur; increased drag on low Earth-orbit satellites is possible.
Radio - HF (high frequency) radio propagation can fade at higher latitudes.
Aurora - Aurora may be seen as low as New York to Wisconsin to Washington state.


Space Weather Message Code: WARK05
Serial Number: 793
Issue Time: 2012 Jul 15 1703 UTC

EXTENDED WARNING: Geomagnetic K-index of 5 expected
Extension to Serial Number: 792
Valid From: 2012 Jul 14 1740 UTC
Now Valid Until: 2012 Jul 16 0000 UTC
Warning Condition: Persistence
Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.


Space Weather Message Code: WARK06
Serial Number: 202
Issue Time: 2012 Jul 15 1145 UTC

EXTENDED WARNING: Geomagnetic K-Index of 6 expected
Extension to Serial Number: 201
Valid From: 2012 Jul 15 0730 UTC
Now Valid Until: 2012 Jul 15 1500 UTC
Warning Condition: Onset
Potential Impacts: Area of impact primarily poleward of 55 degrees Geomagnetic Latitude.
Induced Currents - Power grid fluctuations can occur. High-latitude power systems may experience voltage alarms.
Spacecraft - Satellite orientation irregularities may occur; increased drag on low Earth-orbit satellites is possible.
Radio - HF (high frequency) radio propagation can fade at higher latitudes.
Aurora - Aurora may be seen as low as New York to Wisconsin to Washington state.


Space Weather Message Code: WARK04
Serial Number: 1976
Issue Time: 2012 Jul 15 1145 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 1975
Valid From: 2012 Jul 14 1740 UTC
Now Valid Until: 2012 Jul 16 0000 UTC
Warning Condition: Persistence
Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.


Space Weather Message Code: WARK05
Serial Number: 792
Issue Time: 2012 Jul 15 1145 UTC

EXTENDED WARNING: Geomagnetic K-index of 5 expected
Extension to Serial Number: 791
Valid From: 2012 Jul 14 1740 UTC
Now Valid Until: 2012 Jul 15 1800 UTC
Warning Condition: Persistence
Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.


Space Weather Message Code: ALTK06
Serial Number: 288
Issue Time: 2012 Jul 15 1121 UTC

ALERT: Geomagnetic K-index of 6
Threshold Reached: 2012 Jul 15 1113 UTC
Synoptic Period: 0900-1200 UTC
Active Warning: Yes
NOAA Scale: G2 - Moderate
Potential Impacts: Area of impact primarily poleward of 55 degrees Geomagnetic Latitude.
Induced Currents - Power grid fluctuations can occur. High-latitude power systems may experience voltage alarms.
Spacecraft - Satellite orientation irregularities may occur; increased drag on low Earth-orbit satellites is possible.
Radio - HF (high frequency) radio propagation can fade at higher latitudes.
Aurora - Aurora may be seen as low as New York to Wisconsin to Washington state.


Space Weather Message Code: SUMPX1
Serial Number: 59
Issue Time: 2012 Jul 15 1019 UTC

SUMMARY: Proton Event 10MeV Integral Flux exceeded 10pfu
Begin Time: 2012 Jul 12 1835 UTC
Maximum Time: 2012 Jul 12 2225 UTC
End Time: 2012 Jul 15 0200 UTC
Maximum 10MeV Flux: 96 pfu
NOAA Scale: S1 - Minor


Space Weather Message Code: ALTK06
Serial Number: 287
Issue Time: 2012 Jul 15 0754 UTC

ALERT: Geomagnetic K-index of 6
Threshold Reached: 2012 Jul 15 0748 UTC
Synoptic Period: 0600-0900 UTC
Active Warning: Yes
NOAA Scale: G2 - Moderate
Potential Impacts: Area of impact primarily poleward of 55 degrees Geomagnetic Latitude.
Induced Currents - Power grid fluctuations can occur. High-latitude power systems may experience voltage alarms.
Spacecraft - Satellite orientation irregularities may occur; increased drag on low Earth-orbit satellites is possible.
Radio - HF (high frequency) radio propagation can fade at higher latitudes.
Aurora - Aurora may be seen as low as New York to Wisconsin to Washington state.


Space Weather Message Code: WARK05
Serial Number: 791
Issue Time: 2012 Jul 15 0721 UTC

EXTENDED WARNING: Geomagnetic K-index of 5 expected
Extension to Serial Number: 789
Valid From: 2012 Jul 14 1740 UTC
Now Valid Until: 2012 Jul 15 1200 UTC
Warning Condition: Persistence
Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.


Space Weather Message Code: WARK04
Serial Number: 1975
Issue Time: 2012 Jul 15 0721 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 1973
Valid From: 2012 Jul 14 1740 UTC
Now Valid Until: 2012 Jul 15 1500 UTC
Warning Condition: Persistence
Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.


Space Weather Message Code: WARK06
Serial Number: 201
Issue Time: 2012 Jul 15 0721 UTC

WARNING: Geomagnetic K-Index of 6 expected
Valid From: 2012 Jul 15 0730 UTC
Valid To: 2012 Jul 15 1200 UTC
Warning Condition: Onset
NOAA Scale: G2 - Moderate
Potential Impacts: Area of impact primarily poleward of 55 degrees Geomagnetic Latitude.
Induced Currents - Power grid fluctuations can occur. High-latitude power systems may experience voltage alarms.
Spacecraft - Satellite orientation irregularities may occur; increased drag on low Earth-orbit satellites is possible.
Radio - HF (high frequency) radio propagation can fade at higher latitudes.
Aurora - Aurora may be seen as low as New York to Wisconsin to Washington state.


Space Weather Message Code: WARK05
Serial Number: 789
Issue Time: 2012 Jul 15 0254 UTC

EXTENDED WARNING: Geomagnetic K-index of 5 expected
Extension to Serial Number: 788
Valid From: 2012 Jul 14 1740 UTC
Now Valid Until: 2012 Jul 15 0900 UTC
Warning Condition: Persistence
Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.


Space Weather Message Code: WARK04
Serial Number: 1973
Issue Time: 2012 Jul 15 0254 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 1972
Valid From: 2012 Jul 14 1740 UTC
Now Valid Until: 2012 Jul 15 0900 UTC
Warning Condition: Persistence
Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.


Space Weather Message Code: WARPX1
Serial Number: 364
Issue Time: 2012 Jul 14 2258 UTC

EXTENDED WARNING: Proton 10MeV Integral Flux above 10pfu expected
Extension to Serial Number: 363
Valid From: 2012 Jul 13 1630 UTC
Now Valid Until: 2012 Jul 15 1100 UTC
Warning Condition: Persistence
Predicted NOAA Scale: S1 - Minor

Comment: This is an EXTENSION of the S1 Warning Issued at 12/1733Z. 10 MeV Protons are still above the S1 Alert threshold.
Potential Impacts: Radio - Minor impacts on polar HF (high frequency) radio propagation resulting in fades at lower frequencies.


Space Weather Message Code: WARK06
Serial Number: 199
Issue Time: 2012 Jul 14 1914 UTC

WARNING: Geomagnetic K-Index of 6 expected
Valid From: 2012 Jul 14 1915 UTC
Valid To: 2012 Jul 14 2359 UTC
Warning Condition: Onset
NOAA Scale: G2 - Moderate
Potential Impacts: Area of impact primarily poleward of 55 degrees Geomagnetic Latitude.
Induced Currents - Power grid fluctuations can occur. High-latitude power systems may experience voltage alarms.
Spacecraft - Satellite orientation irregularities may occur; increased drag on low Earth-orbit satellites is possible.
Radio - HF (high frequency) radio propagation can fade at higher latitudes.
Aurora - Aurora may be seen as low as New York to Wisconsin to Washington state.


Space Weather Message Code: ALTK05
Serial Number: 696
Issue Time: 2012 Jul 14 1853 UTC

ALERT: Geomagnetic K-index of 5
Threshold Reached: 2012 Jul 14 1851 UTC
Synoptic Period: 1800-2100 UTC
Active Warning: Yes
NOAA Scale: G1 - Minor
Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.


Space Weather Message Code: SUMSUD
Serial Number: 157
Issue Time: 2012 Jul 14 1817 UTC

SUMMARY: Geomagnetic Sudden Impulse
Observed: 2012 Jul 14 1811 UTC
Deviation: 27 nT
Station: Boulder


Space Weather Message Code: ALTK04
Serial Number: 1597
Issue Time: 2012 Jul 14 1814 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2012 Jul 14 1812 UTC
Synoptic Period: 1800-2100 UTC
Active Warning: Yes
Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.


Space Weather Message Code: WARK04
Serial Number: 1972
Issue Time: 2012 Jul 14 1738 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2012 Jul 14 1740 UTC
Valid To: 2012 Jul 15 0300 UTC
Warning Condition: Onset
Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.


Space Weather Message Code: WARK05
Serial Number: 788
Issue Time: 2012 Jul 14 1738 UTC

WARNING: Geomagnetic K-index of 5 expected
Valid From: 2012 Jul 14 1740 UTC
Valid To: 2012 Jul 15 0300 UTC
Warning Condition: Onset
NOAA Scale: G1 - Minor
Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.


Space Weather Message Code: WARSUD
Serial Number: 115
Issue Time: 2012 Jul 14 1736 UTC

WARNING: Geomagnetic Sudden Impulse expected
Valid From: 2012 Jul 14 1800 UTC
Valid To: 2012 Jul 14 1830 UTC
IP Shock Passage Observed: 2012 Jul 14 1728 UTC


Space Weather Message Code: SUM10R
Serial Number: 557
Issue Time: 2012 Jul 14 1459 UTC

SUMMARY: 10cm Radio Burst
Begin Time: 2012 Jul 14 1409 UTC
Maximum Time: 2012 Jul 14 1410 UTC
End Time: 2012 Jul 14 1410 UTC
Duration: 1 minutes
Peak Flux: 150 sfu
Latest Penticton Noon Flux: 145 sfu
Description: A 10cm radio burst indicates that the electromagnetic burst associated with a solar flare at the 10cm wavelength was double or greater than the initial 10cm radio background. This can be indicative of significant radio noise in association with a solar flare. This noise is generally short-lived but can cause interference for sensitive receivers including radar, GPS, and satellite communications.


Space Weather Message Code: ALTEF3
Serial Number: 1934
Issue Time: 2012 Jul 14 0501 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 1933
Begin Time: 2012 Jul 11 1055 UTC
Yesterday Maximum 2MeV Flux: 3020 pfu
Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.


Space Weather Message Code: WARPX1
Serial Number: 363
Issue Time: 2012 Jul 13 1633 UTC

WARNING: Proton 10MeV Integral Flux above 10pfu expected
Valid From: 2012 Jul 13 1630 UTC
Valid To: 2012 Jul 14 2300 UTC
Warning Condition: Persistence
Predicted NOAA Scale: S1 - Minor

Comment: This is an EXTENSION of the S1 Warning Issued at 12/1733Z. 10 MeV Protons are still above the S1 Alert threshold and expected to remain elevated with CME arrival.
Potential Impacts: Radio - Minor impacts on polar HF (high frequency) radio propagation resulting in fades at lower frequencies.


Space Weather Message Code: WATA20
Serial Number: 497
Issue Time: 2012 Jul 13 1313 UTC

WATCH: Geomagnetic A-index of 20 or greater predicted
NOAA Scale: Periods reaching the G1 (Minor) Level Likely
Valid for UTC Day: 2012 Jul 14
Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.


Space Weather Message Code: ALTEF3
Serial Number: 1933
Issue Time: 2012 Jul 13 0739 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 1932
Begin Time: 2012 Jul 11 1055 UTC
Yesterday Maximum 2MeV Flux: 2470 pfu
Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.


Space Weather Message Code: WARPC0
Serial Number: 65
Issue Time: 2012 Jul 13 0034 UTC

CANCEL WARNING: Proton 100MeV Integral Flux above 1pfu expected
Cancel Serial Number: 64
Original Issue Time: 2012 Jul 12 1740 UTC

Comment: Conditions no longer present for warning.
Potential Impacts: An enhancement in the energetic portion of the solar radiation spectrum may indicate increased biological risk to astronauts or passengers and crew in high latitude, high altitude flights. Additionally, energetic particles may represent an increased risk to all satellite systems susceptible to single event effects. This information should be used in conjunction with the current Solar Radiation Storm conditions when assessing overall impact.


Space Weather Message Code: SUM10R
Serial Number: 556
Issue Time: 2012 Jul 12 2007 UTC

SUMMARY: 10cm Radio Burst
Begin Time: 2012 Jul 12 1614 UTC
Maximum Time: 2012 Jul 12 1653 UTC
End Time: 2012 Jul 12 1705 UTC
Duration: 51 minutes
Peak Flux: 800 sfu
Latest Penticton Noon Flux: 162 sfu
Description: A 10cm radio burst indicates that the electromagnetic burst associated with a solar flare at the 10cm wavelength was double or greater than the initial 10cm radio background. This can be indicative of significant radio noise in association with a solar flare. This noise is generally short-lived but can cause interference for sensitive receivers including radar, GPS, and satellite communications.


Space Weather Message Code: ALTPX1
Serial Number: 292
Issue Time: 2012 Jul 12 1851 UTC

ALERT: Proton Event 10MeV Integral Flux exceeded 10pfu
Begin Time: 2012 Jul 12 1835 UTC
NOAA Scale: S1 - Minor
Potential Impacts: Radio - Minor impacts on polar HF (high frequency) radio propagation resulting in fades at lower frequencies.


Space Weather Message Code: WARPC0
Serial Number: 64
Issue Time: 2012 Jul 12 1740 UTC

WARNING: Proton 100MeV Integral Flux above 1pfu expected
Valid From: 2012 Jul 12 1739 UTC
Valid To: 2012 Jul 13 0400 UTC
Warning Condition: Onset
Potential Impacts: An enhancement in the energetic portion of the solar radiation spectrum may indicate increased biological risk to astronauts or passengers and crew in high latitude, high altitude flights. Additionally, energetic particles may represent an increased risk to all satellite systems susceptible to single event effects. This information should be used in conjunction with the current Solar Radiation Storm conditions when assessing overall impact.


Space Weather Message Code: SUMX01
Serial Number: 81
Issue Time: 2012 Jul 12 1735 UTC

SUMMARY: X-ray Event exceeded X1
Begin Time: 2012 Jul 12 1537 UTC
Maximum Time: 2012 Jul 12 1649 UTC
End Time: 2012 Jul 12 1730 UTC
X-ray Class: X1.4
Optical Class: 2b
Location: S15W01
NOAA Scale: R3 - Strong
Potential Impacts: Area of impact consists of large portions of the sunlit side of Earth, strongest at the sub-solar point.
Radio - Wide area blackout of HF (high frequency) radio communication for about an hour.


Space Weather Message Code: WARPX1
Serial Number: 362
Issue Time: 2012 Jul 12 1734 UTC

WARNING: Proton 10MeV Integral Flux above 10pfu expected
Valid From: 2012 Jul 12 1733 UTC
Valid To: 2012 Jul 13 0400 UTC
Warning Condition: Onset
Predicted NOAA Scale: S1 - Minor
Potential Impacts: Radio - Minor impacts on polar HF (high frequency) radio propagation resulting in fades at lower frequencies.


Space Weather Message Code: ALTTP2
Serial Number: 808
Issue Time: 2012 Jul 12 1709 UTC

ALERT: Type II Radio Emission
Begin Time: 2012 Jul 12 1625 UTC
Estimated Velocity: 1268 km/s
Description: Type II emissions occur in association with eruptions on the sun and typically indicate a coronal mass ejection is associated with a flare event.


Space Weather Message Code: ALTTP4
Serial Number: 383
Issue Time: 2012 Jul 12 1632 UTC

ALERT: Type IV Radio Emission
Begin Time: 2012 Jul 12 1615 UTC
Description: Type IV emissions occur in association with major eruptions on the sun and are typically associated with strong coronal mass ejections and solar radiation storms.


Space Weather Message Code: ALTXMF
Serial Number: 177
Issue Time: 2012 Jul 12 1627 UTC

ALERT: X-Ray Flux exceeded M5
Threshold Reached: 2012 Jul 12 1626 UTC
NOAA Scale: R2 - Moderate
Potential Impacts: Area of impact centered on sub-solar point on the sunlit side of Earth. Extent of blackout of HF (high frequency) radio communication dependent upon current X-ray Flux intensity. For real-time information on affected area and expected duration please see http://www.swpc.noaa.gov/drap/index.html.


Space Weather Message Code: ALTEF3
Serial Number: 1932
Issue Time: 2012 Jul 12 1103 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 1931
Begin Time: 2012 Jul 11 1055 UTC
Yesterday Maximum 2MeV Flux: 1750 pfu
Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.


Space Weather Message Code: ALTK04
Serial Number: 1596
Issue Time: 2012 Jul 12 0904 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2012 Jul 12 0900 UTC
Synoptic Period: 0900-1200 UTC
Active Warning: Yes
Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.


Space Weather Message Code: WARK04
Serial Number: 1971
Issue Time: 2012 Jul 12 0855 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2012 Jul 12 0855 UTC
Valid To: 2012 Jul 12 1900 UTC
Warning Condition: Onset
Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.


Space Weather Message Code: WARK04
Serial Number: 1970
Issue Time: 2012 Jul 11 2348 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 1969
Valid From: 2012 Jul 11 1035 UTC
Now Valid Until: 2012 Jul 12 0600 UTC
Warning Condition: Persistence

Comment: Bz is negative and has been for 5 hours.
Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.


Space Weather Message Code: ALTEF3
Serial Number: 1931
Issue Time: 2012 Jul 11 1056 UTC

ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Threshold Reached: 2012 Jul 11 1055 UTC
Station: GOES-13
Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.


Space Weather Message Code: WARK04
Serial Number: 1969
Issue Time: 2012 Jul 11 1036 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2012 Jul 11 1035 UTC
Valid To: 2012 Jul 11 2359 UTC
Warning Condition: Onset
Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.


Space Weather Message Code: ALTEF3
Serial Number: 1930
Issue Time: 2012 Jul 10 1447 UTC

ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Threshold Reached: 2012 Jul 10 1430 UTC
Station: GOES13
Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.


Space Weather Message Code: WARK04
Serial Number: 1967
Issue Time: 2012 Jul 10 1232 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 1966
Valid From: 2012 Jul 08 2235 UTC
Now Valid Until: 2012 Jul 11 0100 UTC
Warning Condition: Persistence
Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.


Space Weather Message Code: WARK04
Serial Number: 1966
Issue Time: 2012 Jul 09 2158 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 1965
Valid From: 2012 Jul 08 2235 UTC
Now Valid Until: 2012 Jul 10 1300 UTC
Warning Condition: Persistence
Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.


Space Weather Message Code: WARK05
Serial Number: 787
Issue Time: 2012 Jul 09 2152 UTC

EXTENDED WARNING: Geomagnetic K-index of 5 expected
Extension to Serial Number: 786
Valid From: 2012 Jul 09 1327 UTC
Now Valid Until: 2012 Jul 10 1300 UTC
Warning Condition: Onset
Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.


Space Weather Message Code: WARPX1
Serial Number: 361
Issue Time: 2012 Jul 09 1834 UTC

CANCEL WARNING: Proton 10MeV Integral Flux above 10pfu expected
Cancel Serial Number: 360
Original Issue Time: 2012 Jul 08 2019 UTC

Comment: Conditions no longer warrant warning.
Potential Impacts: Radio - Minor impacts on polar HF (high frequency) radio propagation resulting in fades at lower frequencies.


Space Weather Message Code: SUMPX1
Serial Number: 58
Issue Time: 2012 Jul 09 1827 UTC

SUMMARY: Proton Event 10MeV Integral Flux exceeded 10pfu
Begin Time: 2012 Jul 09 0130 UTC
Maximum Time: 2012 Jul 09 0430 UTC
End Time: 2012 Jul 09 1445 UTC
Maximum 10MeV Flux: 19 pfu
NOAA Scale: S1 - Minor


Space Weather Message Code: ALTK05
Serial Number: 695
Issue Time: 2012 Jul 09 1428 UTC

ALERT: Geomagnetic K-index of 5
Threshold Reached: 2012 Jul 09 1427 UTC
Synoptic Period: 1200-1500 UTC
Active Warning: Yes
NOAA Scale: G1 - Minor
Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.


Space Weather Message Code: WARK05
Serial Number: 786
Issue Time: 2012 Jul 09 1329 UTC

WARNING: Geomagnetic K-index of 5 expected
Valid From: 2012 Jul 09 1327 UTC
Valid To: 2012 Jul 09 2200 UTC
Warning Condition: Onset
NOAA Scale: G1 - Minor
Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.


Space Weather Message Code: WARK04
Serial Number: 1965
Issue Time: 2012 Jul 09 1142 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 1964
Valid From: 2012 Jul 08 2235 UTC
Now Valid Until: 2012 Jul 10 0000 UTC
Warning Condition: Onset
Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.


Space Weather Message Code: WARK04
Serial Number: 1964
Issue Time: 2012 Jul 09 0555 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 1963
Valid From: 2012 Jul 08 2235 UTC
Now Valid Until: 2012 Jul 09 1200 UTC
Warning Condition: Onset
Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.


Space Weather Message Code: ALTK05
Serial Number: 694
Issue Time: 2012 Jul 09 0302 UTC

ALERT: Geomagnetic K-index of 5
Threshold Reached: 2012 Jul 09 0300 UTC
Synoptic Period: 0300-0600 UTC
Active Warning: Yes
NOAA Scale: G1 - Minor
Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.


Space Weather Message Code: ALTPX1
Serial Number: 291
Issue Time: 2012 Jul 09 0150 UTC

ALERT: Proton Event 10MeV Integral Flux exceeded 10pfu
Begin Time: 2012 Jul 09 0130 UTC
NOAA Scale: S1 - Minor
Potential Impacts: Radio - Minor impacts on polar HF (high frequency) radio propagation resulting in fades at lower frequencies.


Space Weather Message Code: WARK05
Serial Number: 785
Issue Time: 2012 Jul 08 2347 UTC

WARNING: Geomagnetic K-index of 5 expected
Valid From: 2012 Jul 08 2346 UTC
Valid To: 2012 Jul 09 0600 UTC
Warning Condition: Onset
NOAA Scale: G1 - Minor
Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.


Space Weather Message Code: ALTK04
Serial Number: 1595
Issue Time: 2012 Jul 08 2241 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2012 Jul 08 2239 UTC
Synoptic Period: 2100-2400 UTC
Active Warning: Yes
Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.


Space Weather Message Code: WARK04
Serial Number: 1963
Issue Time: 2012 Jul 08 2235 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2012 Jul 08 2235 UTC
Valid To: 2012 Jul 09 0600 UTC
Warning Condition: Onset
Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.


Space Weather Message Code: WARPC0
Serial Number: 63
Issue Time: 2012 Jul 08 2228 UTC

WARNING: Proton 100MeV Integral Flux above 1pfu expected
Valid From: 2012 Jul 08 2300 UTC
Valid To: 2012 Jul 09 1100 UTC
Warning Condition: Onset
Potential Impacts: An enhancement in the energetic portion of the solar radiation spectrum may indicate increased biological risk to astronauts or passengers and crew in high latitude, high altitude flights. Additionally, energetic particles may represent an increased risk to all satellite systems susceptible to single event effects. This information should be used in conjunction with the current Solar Radiation Storm conditions when assessing overall impact.


Space Weather Message Code: WARPX1
Serial Number: 360
Issue Time: 2012 Jul 08 2019 UTC

WARNING: Proton 10MeV Integral Flux above 10pfu expected
Valid From: 2012 Jul 08 2030 UTC
Valid To: 2012 Jul 09 2030 UTC
Warning Condition: Onset
Predicted NOAA Scale: S1 - Minor
Potential Impacts: Radio - Minor impacts on polar HF (high frequency) radio propagation resulting in fades at lower frequencies.


Space Weather Message Code: ALTTP4
Serial Number: 382
Issue Time: 2012 Jul 08 1753 UTC

ALERT: Type IV Radio Emission
Begin Time: 2012 Jul 08 1722 UTC
Description: Type IV emissions occur in association with major eruptions on the sun and are typically associated with strong coronal mass ejections and solar radiation storms.


Space Weather Message Code: ALTTP2
Serial Number: 807
Issue Time: 2012 Jul 08 1657 UTC

ALERT: Type II Radio Emission
Begin Time: 2012 Jul 08 1630 UTC
Estimated Velocity: 2271 km/s
Description: Type II emissions occur in association with eruptions on the sun and typically indicate a coronal mass ejection is associated with a flare event.


Space Weather Message Code: SUMXM5
Serial Number: 94
Issue Time: 2012 Jul 08 1651 UTC

SUMMARY: X-ray Event exceeded M5
Begin Time: 2012 Jul 08 1623 UTC
Maximum Time: 2012 Jul 08 1632 UTC
End Time: 2012 Jul 08 1642 UTC
X-ray Class: M6.9
Location: S17W74
NOAA Scale: R2 - Moderate
Potential Impacts: Area of impact centered primarily on sub-solar point on the sunlit side of Earth.
Radio - Limited blackout of HF (high frequency) radio communication for tens of minutes.


Space Weather Message Code: SUM10R
Serial Number: 555
Issue Time: 2012 Jul 08 1646 UTC

SUMMARY: 10cm Radio Burst
Begin Time: 2012 Jul 08 1624 UTC
Maximum Time: 2012 Jul 08 1627 UTC
End Time: 2012 Jul 08 1631 UTC
Duration: 7 minutes
Peak Flux: 640 sfu
Latest Penticton Noon Flux: 158 sfu
Description: A 10cm radio burst indicates that the electromagnetic burst associated with a solar flare at the 10cm wavelength was double or greater than the initial 10cm radio background. This can be indicative of significant radio noise in association with a solar flare. This noise is generally short-lived but can cause interference for sensitive receivers including radar, GPS, and satellite communications.


Space Weather Message Code: ALTXMF
Serial Number: 176
Issue Time: 2012 Jul 08 1631 UTC

ALERT: X-Ray Flux exceeded M5
Threshold Reached: 2012 Jul 08 1630 UTC
NOAA Scale: R2 - Moderate
Potential Impacts: Area of impact centered on sub-solar point on the sunlit side of Earth. Extent of blackout of HF (high frequency) radio communication dependent upon current X-ray Flux intensity. For real-time information on affected area and expected duration please see http://www.swpc.noaa.gov/drap/index.html.


Space Weather Message Code: SUMPX1
Serial Number: 57
Issue Time: 2012 Jul 08 0256 UTC

SUMMARY: Proton Event 10MeV Integral Flux exceeded 10pfu
Begin Time: 2012 Jul 07 0400 UTC
Maximum Time: 2012 Jul 07 0745 UTC
End Time: 2012 Jul 07 2110 UTC
Maximum 10MeV Flux: 25 pfu
NOAA Scale: S1 - Minor


Space Weather Message Code: ALTPX1
Serial Number: 290
Issue Time: 2012 Jul 07 0428 UTC

ALERT: Proton Event 10MeV Integral Flux exceeded 10pfu
Begin Time: 2012 Jul 07 0400 UTC
NOAA Scale: S1 - Minor
Potential Impacts: Radio - Minor impacts on polar HF (high frequency) radio propagation resulting in fades at lower frequencies.


Space Weather Message Code: WARPX1
Serial Number: 359
Issue Time: 2012 Jul 07 0255 UTC

WARNING: Proton 10MeV Integral Flux above 10pfu expected
Valid From: 2012 Jul 07 0255 UTC
Valid To: 2012 Jul 08 0300 UTC
Warning Condition: Onset
Predicted NOAA Scale: S1 - Minor
Potential Impacts: Radio - Minor impacts on polar HF (high frequency) radio propagation resulting in fades at lower frequencies.


Space Weather Message Code: WARK04
Serial Number: 1962
Issue Time: 2012 Jul 07 0255 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 1961
Valid From: 2012 Jul 06 1935 UTC
Now Valid Until: 2012 Jul 07 1200 UTC
Warning Condition: Persistence
Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.


Space Weather Message Code: ALTTP2
Serial Number: 806
Issue Time: 2012 Jul 07 0101 UTC

ALERT: Type II Radio Emission
Begin Time: 2012 Jul 06 2309 UTC
Estimated Velocity: 1771 km/s
Description: Type II emissions occur in association with eruptions on the sun and typically indicate a coronal mass ejection is associated with a flare event.


Space Weather Message Code: ALTTP4
Serial Number: 381
Issue Time: 2012 Jul 06 2348 UTC

ALERT: Type IV Radio Emission
Begin Time: 2012 Jul 06 2322 UTC
Description: Type IV emissions occur in association with major eruptions on the sun and are typically associated with strong coronal mass ejections and solar radiation storms.


Space Weather Message Code: SUM10R
Serial Number: 554
Issue Time: 2012 Jul 06 2328 UTC

SUMMARY: 10cm Radio Burst
Begin Time: 2012 Jul 06 2304 UTC
Maximum Time: 2012 Jul 06 2306 UTC
End Time: 2012 Jul 06 2306 UTC
Duration: 2 minutes
Peak Flux: 520 sfu
Latest Penticton Noon Flux: 158 sfu
Description: A 10cm radio burst indicates that the electromagnetic burst associated with a solar flare at the 10cm wavelength was double or greater than the initial 10cm radio background. This can be indicative of significant radio noise in association with a solar flare. This noise is generally short-lived but can cause interference for sensitive receivers including radar, GPS, and satellite communications.


Space Weather Message Code: SUMX01
Serial Number: 80
Issue Time: 2012 Jul 06 2325 UTC

SUMMARY: X-ray Event exceeded X1
Begin Time: 2012 Jul 06 2301 UTC
Maximum Time: 2012 Jul 06 2308 UTC
End Time: 2012 Jul 06 2314 UTC
X-ray Class: X1.1
Location: S18W50
NOAA Scale: R3 - Strong
Potential Impacts: Area of impact consists of large portions of the sunlit side of Earth, strongest at the sub-solar point.
Radio - Wide area blackout of HF (high frequency) radio communication for about an hour.


Space Weather Message Code: ALTXMF
Serial Number: 175
Issue Time: 2012 Jul 06 2307 UTC

ALERT: X-Ray Flux exceeded M5
Threshold Reached: 2012 Jul 06 2306 UTC
NOAA Scale: R2 - Moderate
Potential Impacts: Area of impact centered on sub-solar point on the sunlit side of Earth. Extent of blackout of HF (high frequency) radio communication dependent upon current X-ray Flux intensity. For real-time information on affected area and expected duration please see http://www.swpc.noaa.gov/drap/index.html.


Space Weather Message Code: ALTK05
Serial Number: 693
Issue Time: 2012 Jul 06 2246 UTC

ALERT: Geomagnetic K-index of 5
Threshold Reached: 2012 Jul 06 2241 UTC
Synoptic Period: 2100-2400 UTC
Active Warning: Yes
NOAA Scale: G1 - Minor
Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.


Space Weather Message Code: WARK05
Serial Number: 784
Issue Time: 2012 Jul 06 2243 UTC

WARNING: Geomagnetic K-index of 5 expected
Valid From: 2012 Jul 06 2245 UTC
Valid To: 2012 Jul 07 0300 UTC
Warning Condition: Onset
NOAA Scale: G1 - Minor
Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.


Space Weather Message Code: WARK05
Serial Number: 784
Issue Time: 2012 Jul 06 2243 UTC

WARNING: Geomagnetic K-index of 5 expected
Valid From: 2012 Jul 06 2245 UTC
Valid To: 2012 Jul 07 0300 UTC
Warning Condition: Onset
NOAA Scale: G1 - Minor
Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.


Space Weather Message Code: ALTK04
Serial Number: 1594
Issue Time: 2012 Jul 06 2242 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2012 Jul 06 2238 UTC
Synoptic Period: 2100-2400 UTC
Active Warning: Yes
Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.


Space Weather Message Code: WARK04
Serial Number: 1961
Issue Time: 2012 Jul 06 1935 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2012 Jul 06 1935 UTC
Valid To: 2012 Jul 07 0300 UTC
Warning Condition: Onset
Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.


Space Weather Message Code: WATA20
Serial Number: 496
Issue Time: 2012 Jul 06 1630 UTC

WATCH: Geomagnetic A-index of 20 or greater predicted
NOAA Scale: Periods reaching the G1 (Minor) Level Likely
Valid for UTC Day: 2012 Jul 07
Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.


Space Weather Message Code: ALTTP4
Serial Number: 380
Issue Time: 2012 Jul 06 1450 UTC

ALERT: Type IV Radio Emission
Begin Time: 2012 Jul 06 1356 UTC
Description: Type IV emissions occur in association with major eruptions on the sun and are typically associated with strong coronal mass ejections and solar radiation storms.


Space Weather Message Code: ALTTP2
Serial Number: 805
Issue Time: 2012 Jul 06 1135 UTC

ALERT: Type II Radio Emission
Begin Time: 2012 Jul 06 1109 UTC
Estimated Velocity: 1062 km/s
Description: Type II emissions occur in association with eruptions on the sun and typically indicate a coronal mass ejection is associated with a flare event.


Space Weather Message Code: ALTEF3
Serial Number: 1929
Issue Time: 2012 Jul 06 1051 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 1928
Begin Time: 2012 Jul 01 1320 UTC
Yesterday Maximum 2MeV Flux: 9088 pfu
Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.


Space Weather Message Code: WARK04
Serial Number: 1960
Issue Time: 2012 Jul 06 0556 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 1959
Valid From: 2012 Jul 05 2230 UTC
Now Valid Until: 2012 Jul 06 1300 UTC
Warning Condition: Persistence
Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.


Space Weather Message Code: WARK04
Serial Number: 1959
Issue Time: 2012 Jul 05 2214 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2012 Jul 05 2230 UTC
Valid To: 2012 Jul 06 0600 UTC
Warning Condition: Onset
Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.


Space Weather Message Code: SUM10R
Serial Number: 553
Issue Time: 2012 Jul 05 2211 UTC

SUMMARY: 10cm Radio Burst
Begin Time: 2012 Jul 05 2143 UTC
Maximum Time: 2012 Jul 05 2147 UTC
End Time: 2012 Jul 05 2148 UTC
Duration: 5 minutes
Peak Flux: 270 sfu
Latest Penticton Noon Flux: 165 sfu
Description: A 10cm radio burst indicates that the electromagnetic burst associated with a solar flare at the 10cm wavelength was double or greater than the initial 10cm radio background. This can be indicative of significant radio noise in association with a solar flare. This noise is generally short-lived but can cause interference for sensitive receivers including radar, GPS, and satellite communications.


Space Weather Message Code: WATA20
Serial Number: 495
Issue Time: 2012 Jul 05 2129 UTC

WATCH: Geomagnetic A-index of 20 or greater predicted
NOAA Scale: Periods reaching the G1 (Minor) Level Likely
Valid for UTC Day: 2012 Jul 08
Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.


Space Weather Message Code: ALTK04
Serial Number: 1593
Issue Time: 2012 Jul 05 1357 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2012 Jul 05 1355 UTC
Synoptic Period: 1200-1500 UTC
Active Warning: Yes
Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.


Space Weather Message Code: WARK04
Serial Number: 1958
Issue Time: 2012 Jul 05 1303 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2012 Jul 05 1302 UTC
Valid To: 2012 Jul 05 1900 UTC
Warning Condition: Onset
Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.


Space Weather Message Code: SUM10R
Serial Number: 552
Issue Time: 2012 Jul 05 1230 UTC

SUMMARY: 10cm Radio Burst
Begin Time: 2012 Jul 05 1142 UTC
Maximum Time: 2012 Jul 05 1144 UTC
End Time: 2012 Jul 05 1145 UTC
Duration: 3 minutes
Peak Flux: 290 sfu
Latest Penticton Noon Flux: 163 sfu
Description: A 10cm radio burst indicates that the electromagnetic burst associated with a solar flare at the 10cm wavelength was double or greater than the initial 10cm radio background. This can be indicative of significant radio noise in association with a solar flare. This noise is generally short-lived but can cause interference for sensitive receivers including radar, GPS, and satellite communications.


Space Weather Message Code: SUMXM5
Serial Number: 93
Issue Time: 2012 Jul 05 1224 UTC

SUMMARY: X-ray Event exceeded M5
Begin Time: 2012 Jul 05 1139 UTC
Maximum Time: 2012 Jul 05 1144 UTC
End Time: 2012 Jul 05 1149 UTC
X-ray Class: M6.1
Optical Class: 1b
Location: S20W32
NOAA Scale: R2 - Moderate
Potential Impacts: Area of impact centered primarily on sub-solar point on the sunlit side of Earth.
Radio - Limited blackout of HF (high frequency) radio communication for tens of minutes.


Space Weather Message Code: ALTXMF
Serial Number: 174
Issue Time: 2012 Jul 05 1146 UTC

ALERT: X-Ray Flux exceeded M5
Threshold Reached: 2012 Jul 05 1145 UTC
NOAA Scale: R2 - Moderate
Potential Impacts: Area of impact centered on sub-solar point on the sunlit side of Earth. Extent of blackout of HF (high frequency) radio communication dependent upon current X-ray Flux intensity. For real-time information on affected area and expected duration please see http://www.swpc.noaa.gov/drap/index.html.


Space Weather Message Code: ALTEF3
Serial Number: 1928
Issue Time: 2012 Jul 05 0540 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 1927
Begin Time: 2012 Jul 01 1320 UTC
Yesterday Maximum 2MeV Flux: 10534 pfu
Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.


Space Weather Message Code: ALTTP4
Serial Number: 379
Issue Time: 2012 Jul 05 0418 UTC

ALERT: Type IV Radio Emission
Begin Time: 2012 Jul 05 0351 UTC
Description: Type IV emissions occur in association with major eruptions on the sun and are typically associated with strong coronal mass ejections and solar radiation storms.


Space Weather Message Code: ALTTP4
Serial Number: 378
Issue Time: 2012 Jul 05 0019 UTC

ALERT: Type IV Radio Emission
Begin Time: 2012 Jul 05 0001 UTC
Description: Type IV emissions occur in association with major eruptions on the sun and are typically associated with strong coronal mass ejections and solar radiation storms.


Space Weather Message Code: SUM10R
Serial Number: 551
Issue Time: 2012 Jul 04 2233 UTC

SUMMARY: 10cm Radio Burst
Begin Time: 2012 Jul 04 2206 UTC
Maximum Time: 2012 Jul 04 2207 UTC
End Time: 2012 Jul 04 2209 UTC
Duration: 3 minutes
Peak Flux: 220 sfu
Latest Penticton Noon Flux: 163 sfu
Description: A 10cm radio burst indicates that the electromagnetic burst associated with a solar flare at the 10cm wavelength was double or greater than the initial 10cm radio background. This can be indicative of significant radio noise in association with a solar flare. This noise is generally short-lived but can cause interference for sensitive receivers including radar, GPS, and satellite communications.


Space Weather Message Code: ALTTP2
Serial Number: 804
Issue Time: 2012 Jul 04 2023 UTC

ALERT: Type II Radio Emission
Begin Time: 2012 Jul 04 1642 UTC
Estimated Velocity: 1283 km/s
Description: Type II emissions occur in association with eruptions on the sun and typically indicate a coronal mass ejection is associated with a flare event.


Space Weather Message Code: ALTTP4
Serial Number: 377
Issue Time: 2012 Jul 04 2021 UTC

ALERT: Type IV Radio Emission
Begin Time: 2012 Jul 04 1646 UTC
Description: Type IV emissions occur in association with major eruptions on the sun and are typically associated with strong coronal mass ejections and solar radiation storms.


Space Weather Message Code: SUM10R
Serial Number: 550
Issue Time: 2012 Jul 04 1236 UTC

SUMMARY: 10cm Radio Burst
Begin Time: 2012 Jul 04 1218 UTC
Maximum Time: 2012 Jul 04 1219 UTC
End Time: 2012 Jul 04 1220 UTC
Duration: 2 minutes
Peak Flux: 160 sfu
Latest Penticton Noon Flux: 146 sfu
Description: A 10cm radio burst indicates that the electromagnetic burst associated with a solar flare at the 10cm wavelength was double or greater than the initial 10cm radio background. This can be indicative of significant radio noise in association with a solar flare. This noise is generally short-lived but can cause interference for sensitive receivers including radar, GPS, and satellite communications.


Space Weather Message Code: SUMXM5
Serial Number: 92
Issue Time: 2012 Jul 04 1028 UTC

SUMMARY: X-ray Event exceeded M5
Begin Time: 2012 Jul 04 0947 UTC
Maximum Time: 2012 Jul 04 0955 UTC
End Time: 2012 Jul 04 0957 UTC
X-ray Class: M5.3
Optical Class: 2b
Location: S20W18
NOAA Scale: R2 - Moderate
Potential Impacts: Area of impact centered primarily on sub-solar point on the sunlit side of Earth.
Radio - Limited blackout of HF (high frequency) radio communication for tens of minutes.


Space Weather Message Code: ALTXMF
Serial Number: 173
Issue Time: 2012 Jul 04 0955 UTC

ALERT: X-Ray Flux exceeded M5
Threshold Reached: 2012 Jul 04 0954 UTC
NOAA Scale: R2 - Moderate
Potential Impacts: Area of impact centered on sub-solar point on the sunlit side of Earth. Extent of blackout of HF (high frequency) radio communication dependent upon current X-ray Flux intensity. For real-time information on affected area and expected duration please see http://www.swpc.noaa.gov/drap/index.html.


Space Weather Message Code: ALTTP4
Serial Number: 376
Issue Time: 2012 Jul 04 0544 UTC

ALERT: Type IV Radio Emission
Begin Time: 2012 Jul 04 0444 UTC
Description: Type IV emissions occur in association with major eruptions on the sun and are typically associated with strong coronal mass ejections and solar radiation storms.


Space Weather Message Code: ALTEF3
Serial Number: 1927
Issue Time: 2012 Jul 04 0528 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 1926
Begin Time: 2012 Jul 01 1320 UTC
Yesterday Maximum 2MeV Flux: 10907 pfu
Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.


Space Weather Message Code: SUM10R
Serial Number: 549
Issue Time: 2012 Jul 04 0450 UTC

SUMMARY: 10cm Radio Burst
Begin Time: 2012 Jul 04 0430 UTC
Maximum Time: 2012 Jul 04 0430 UTC
End Time: 2012 Jul 04 0432 UTC
Duration: 2 minutes
Peak Flux: 150 sfu
Latest Penticton Noon Flux: 146 sfu
Description: A 10cm radio burst indicates that the electromagnetic burst associated with a solar flare at the 10cm wavelength was double or greater than the initial 10cm radio background. This can be indicative of significant radio noise in association with a solar flare. This noise is generally short-lived but can cause interference for sensitive receivers including radar, GPS, and satellite communications.


Space Weather Message Code: ALTTP2
Serial Number: 803
Issue Time: 2012 Jul 03 2114 UTC

ALERT: Type II Radio Emission
Begin Time: 2012 Jul 03 2048 UTC
Estimated Velocity: 874 km/s
Description: Type II emissions occur in association with eruptions on the sun and typically indicate a coronal mass ejection is associated with a flare event.


Space Weather Message Code: SUM10R
Serial Number: 548
Issue Time: 2012 Jul 03 1927 UTC

SUMMARY: 10cm Radio Burst
Begin Time: 2012 Jul 03 0339 UTC
Maximum Time: 2012 Jul 03 0339 UTC
End Time: 2012 Jul 03 0340 UTC
Duration: 1 minutes
Peak Flux: 260 sfu
Latest Penticton Noon Flux: 166 sfu

Comment: Latest Penticton Noon Flux was flare-enhanced.
Description: A 10cm radio burst indicates that the electromagnetic burst associated with a solar flare at the 10cm wavelength was double or greater than the initial 10cm radio background. This can be indicative of significant radio noise in association with a solar flare. This noise is generally short-lived but can cause interference for sensitive receivers including radar, GPS, and satellite communications.


Space Weather Message Code: ALTTP2
Serial Number: 802
Issue Time: 2012 Jul 03 1535 UTC

ALERT: Type II Radio Emission
Begin Time: 2012 Jul 03 1448 UTC
Estimated Velocity: 1067 km/s
Description: Type II emissions occur in association with eruptions on the sun and typically indicate a coronal mass ejection is associated with a flare event.


Space Weather Message Code: ALTEF3
Serial Number: 1926
Issue Time: 2012 Jul 03 0812 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 1925
Begin Time: 2012 Jul 01 1320 UTC
Yesterday Maximum 2MeV Flux: 4430 pfu
Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.


Space Weather Message Code: SUM10R
Serial Number: 547
Issue Time: 2012 Jul 02 2108 UTC

SUMMARY: 10cm Radio Burst
Begin Time: 2012 Jul 02 2001 UTC
Maximum Time: 2012 Jul 02 2002 UTC
End Time: 2012 Jul 02 2002 UTC
Duration: 1 minutes
Peak Flux: 190 sfu
Latest Penticton Noon Flux: 166 sfu
Description: A 10cm radio burst indicates that the electromagnetic burst associated with a solar flare at the 10cm wavelength was double or greater than the initial 10cm radio background. This can be indicative of significant radio noise in association with a solar flare. This noise is generally short-lived but can cause interference for sensitive receivers including radar, GPS, and satellite communications.


Space Weather Message Code: WARK04
Serial Number: 1957
Issue Time: 2012 Jul 02 1855 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 1956
Valid From: 2012 Jul 02 0230 UTC
Now Valid Until: 2001 Jul 03 0100 UTC
Warning Condition: Persistence
Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.


Space Weather Message Code: SUMXM5
Serial Number: 91
Issue Time: 2012 Jul 02 1151 UTC

SUMMARY: X-ray Event exceeded M5
Begin Time: 2012 Jul 02 1043 UTC
Maximum Time: 2012 Jul 02 1052 UTC
End Time: 2012 Jul 02 1057 UTC
X-ray Class: M5.6
Optical Class: 2b
Location: S17E08
NOAA Scale: R2 - Moderate
Potential Impacts: Area of impact centered primarily on sub-solar point on the sunlit side of Earth.
Radio - Limited blackout of HF (high frequency) radio communication for tens of minutes.


Space Weather Message Code: ALTEF3
Serial Number: 1925
Issue Time: 2012 Jul 02 1133 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 1924
Begin Time: 2012 Jul 01 1320 UTC
Yesterday Maximum 2MeV Flux: 3420 pfu
Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.


Space Weather Message Code: ALTTP2
Serial Number: 801
Issue Time: 2012 Jul 02 1128 UTC

ALERT: Type II Radio Emission
Begin Time: 2012 Jul 02 1047 UTC
Estimated Velocity: 1063 km/s
Description: Type II emissions occur in association with eruptions on the sun and typically indicate a coronal mass ejection is associated with a flare event.


Space Weather Message Code: SUM10R
Serial Number: 546
Issue Time: 2012 Jul 02 1115 UTC

SUMMARY: 10cm Radio Burst
Begin Time: 2012 Jul 02 1046 UTC
Maximum Time: 2012 Jul 02 1047 UTC
End Time: 2012 Jul 02 1048 UTC
Duration: 2 minutes
Peak Flux: 380 sfu
Latest Penticton Noon Flux: 380 sfu
Description: A 10cm radio burst indicates that the electromagnetic burst associated with a solar flare at the 10cm wavelength was double or greater than the initial 10cm radio background. This can be indicative of significant radio noise in association with a solar flare. This noise is generally short-lived but can cause interference for sensitive receivers including radar, GPS, and satellite communications.


Space Weather Message Code: ALTXMF
Serial Number: 172
Issue Time: 2012 Jul 02 1051 UTC

ALERT: X-Ray Flux exceeded M5
Threshold Reached: 2012 Jul 02 1050 UTC
NOAA Scale: R2 - Moderate
Potential Impacts: Area of impact centered on sub-solar point on the sunlit side of Earth. Extent of blackout of HF (high frequency) radio communication dependent upon current X-ray Flux intensity. For real-time information on affected area and expected duration please see http://www.swpc.noaa.gov/drap/index.html.


Space Weather Message Code: WARK04
Serial Number: 1956
Issue Time: 2012 Jul 02 0856 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 1955
Valid From: 2012 Jul 02 0230 UTC
Now Valid Until: 2012 Jul 02 1900 UTC
Warning Condition: Persistence
Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.


Space Weather Message Code: ALTTP2
Serial Number: 800
Issue Time: 2012 Jul 02 0631 UTC

ALERT: Type II Radio Emission
Begin Time: 2012 Jul 02 0509 UTC
Estimated Velocity: 1459 km/s
Description: Type II emissions occur in association with eruptions on the sun and typically indicate a coronal mass ejection is associated with a flare event.


Space Weather Message Code: SUM10R
Serial Number: 545
Issue Time: 2012 Jul 02 0630 UTC

SUMMARY: 10cm Radio Burst
Begin Time: 2012 Jul 02 0505 UTC
Maximum Time: 2012 Jul 02 0505 UTC
End Time: 2012 Jul 02 0506 UTC
Duration: 1 minutes
Peak Flux: 160 sfu
Latest Penticton Noon Flux: 133 sfu
Description: A 10cm radio burst indicates that the electromagnetic burst associated with a solar flare at the 10cm wavelength was double or greater than the initial 10cm radio background. This can be indicative of significant radio noise in association with a solar flare. This noise is generally short-lived but can cause interference for sensitive receivers including radar, GPS, and satellite communications.


Space Weather Message Code: ALTK04
Serial Number: 1592
Issue Time: 2012 Jul 02 0241 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2012 Jul 02 0236 UTC
Synoptic Period: 0000-0300 UTC
Active Warning: Yes
Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.


Space Weather Message Code: WARK04
Serial Number: 1955
Issue Time: 2012 Jul 02 0231 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2012 Jul 02 0230 UTC
Valid To: 2012 Jul 02 0900 UTC
Warning Condition: Onset
Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.


Space Weather Message Code: ALTEF3
Serial Number: 1924
Issue Time: 2012 Jul 01 1335 UTC

ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Threshold Reached: 2012 Jul 01 1320 UTC
Station: GOES13
Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.


Space Weather Message Code: WARK05
Serial Number: 783
Issue Time: 2012 Jul 01 0141 UTC

WARNING: Geomagnetic K-index of 5 expected
Valid From: 2012 Jul 01 0200 UTC
Valid To: 2012 Jul 01 0900 UTC
Warning Condition: Onset
NOAA Scale: G1 - Minor
Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.