NOAA / Space Weather Prediction Center

Mass Ejection graphic

Space Weather Alerts

Alerts/Displays - Archive - Email Registration - Help/Samples

Alerts in Graphical Timelines: Past 7 days and Currently in Effect
Alerts in Text Format: Current month and Previous month

Alerts Issued in June 2012


Space Weather Message Code: WARK04
Serial Number: 1954
Issue Time: 2012 Jun 30 2349 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 1953
Valid From: 2012 Jun 30 0530 UTC
Now Valid Until: 2012 Jul 01 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: WARK04
Serial Number: 1953
Issue Time: 2012 Jun 30 1731 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 1952
Valid From: 2012 Jun 30 0530 UTC
Now Valid Until: 2012 Jul 01 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: 1952
Issue Time: 2012 Jun 30 1155 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 1951
Valid From: 2012 Jun 30 0530 UTC
Now Valid Until: 2012 Jun 30 1800 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: ALTK04
Serial Number: 1591
Issue Time: 2012 Jun 30 0756 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2012 Jun 30 0756 UTC
Synoptic Period: 0600-0900 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: 1951
Issue Time: 2012 Jun 30 0521 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2012 Jun 30 0530 UTC
Valid To: 2012 Jun 30 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: ALTEF3
Serial Number: 1923
Issue Time: 2012 Jun 24 1011 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 1922
Begin Time: 2012 Jun 18 1405 UTC
Yesterday Maximum 2MeV Flux: 1986 pfu
Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.


Space Weather Message Code: ALTEF3
Serial Number: 1922
Issue Time: 2012 Jun 23 1032 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 1921
Begin Time: 2012 Jun 18 1405 UTC
Yesterday Maximum 2MeV Flux: 2518 pfu
Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.


Space Weather Message Code: ALTEF3
Serial Number: 1921
Issue Time: 2012 Jun 22 0505 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 1920
Begin Time: 2012 Jun 18 1405 UTC
Yesterday Maximum 2MeV Flux: 5456 pfu
Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.


Space Weather Message Code: ALTEF3
Serial Number: 1920
Issue Time: 2012 Jun 21 1104 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 1919
Begin Time: 2012 Jun 18 1405 UTC
Yesterday Maximum 2MeV Flux: 5491 pfu
Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.


Space Weather Message Code: ALTEF3
Serial Number: 1919
Issue Time: 2012 Jun 21 0524 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 1918
Begin Time: 2012 Jun 18 1405 UTC
Yesterday Maximum 2MeV Flux: 5491 pfu
Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.


Space Weather Message Code: ALTEF3
Serial Number: 1918
Issue Time: 2012 Jun 20 0520 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 1917
Begin Time: 2012 Jun 18 1405 UTC
Yesterday Maximum 2MeV Flux: 2372 pfu
Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.


Space Weather Message Code: ALTEF3
Serial Number: 1917
Issue Time: 2012 Jun 19 0806 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 1916
Begin Time: 2012 Jun 18 1405 UTC
Yesterday Maximum 2MeV Flux: 1405 pfu
Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.


Space Weather Message Code: ALTEF3
Serial Number: 1916
Issue Time: 2012 Jun 18 1421 UTC

ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Threshold Reached: 2012 Jun 18 1405 UTC
Station: GOES13
Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.


Space Weather Message Code: ALTK05
Serial Number: 692
Issue Time: 2012 Jun 18 0338 UTC

ALERT: Geomagnetic K-index of 5
Threshold Reached: 2012 Jun 18 0336 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: WARK05
Serial Number: 782
Issue Time: 2012 Jun 18 0306 UTC

WARNING: Geomagnetic K-index of 5 expected
Valid From: 2012 Jun 18 0315 UTC
Valid To: 2012 Jun 18 0800 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: 1950
Issue Time: 2012 Jun 17 2354 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 1949
Valid From: 2012 Jun 16 1940 UTC
Now Valid Until: 2012 Jun 18 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: WARK04
Serial Number: 1949
Issue Time: 2012 Jun 17 1746 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 1948
Valid From: 2012 Jun 16 1940 UTC
Now Valid Until: 2012 Jun 18 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: WARK06
Serial Number: 198
Issue Time: 2012 Jun 17 1150 UTC

EXTENDED WARNING: Geomagnetic K-Index of 6 expected
Extension to Serial Number: 197
Valid From: 2012 Jun 17 0730 UTC
Now Valid Until: 2012 Jun 17 1500 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: WARK04
Serial Number: 1948
Issue Time: 2012 Jun 17 1150 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 1947
Valid From: 2012 Jun 16 1940 UTC
Now Valid Until: 2012 Jun 17 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: WARK05
Serial Number: 781
Issue Time: 2012 Jun 17 1150 UTC

EXTENDED WARNING: Geomagnetic K-index of 5 expected
Extension to Serial Number: 780
Valid From: 2012 Jun 16 2119 UTC
Now Valid Until: 2012 Jun 17 1800 UTC
Warning Condition: Persistence

Comment: Extending warning to 18:00 UT.
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: 286
Issue Time: 2012 Jun 17 1133 UTC

ALERT: Geomagnetic K-index of 6
Threshold Reached: 2012 Jun 17 1131 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: WARK06
Serial Number: 197
Issue Time: 2012 Jun 17 0725 UTC

WARNING: Geomagnetic K-Index of 6 expected
Valid From: 2012 Jun 17 0730 UTC
Valid To: 2012 Jun 17 1200 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: 780
Issue Time: 2012 Jun 17 0725 UTC

EXTENDED WARNING: Geomagnetic K-index of 5 expected
Extension to Serial Number: 779
Valid From: 2012 Jun 16 2119 UTC
Now Valid Until: 2012 Jun 17 1200 UTC
Warning Condition: Persistence

Comment: Extending warning to 12:00 UT.
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: SUMPX1
Serial Number: 56
Issue Time: 2012 Jun 17 0329 UTC

SUMMARY: Proton Event 10MeV Integral Flux exceeded 10pfu
Begin Time: 2012 Jun 16 1955 UTC
Maximum Time: 2012 Jun 16 2020 UTC
End Time: 2012 Jun 16 2255 UTC
Maximum 10MeV Flux: 14 pfu
NOAA Scale: S1 - Minor


Space Weather Message Code: WARK05
Serial Number: 779
Issue Time: 2012 Jun 17 0255 UTC

EXTENDED WARNING: Geomagnetic K-index of 5 expected
Extension to Serial Number: 778
Valid From: 2012 Jun 16 2119 UTC
Now Valid Until: 2012 Jun 17 0900 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: WARK04
Serial Number: 1947
Issue Time: 2012 Jun 17 0232 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 1946
Valid From: 2012 Jun 16 1940 UTC
Now Valid Until: 2012 Jun 17 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: ALTK06
Serial Number: 285
Issue Time: 2012 Jun 16 2247 UTC

ALERT: Geomagnetic K-index of 6
Threshold Reached: 2012 Jun 16 2245 UTC
Synoptic Period: 2100-2400 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: 196
Issue Time: 2012 Jun 16 2227 UTC

WARNING: Geomagnetic K-Index of 6 expected
Valid From: 2012 Jun 16 2230 UTC
Valid To: 2012 Jun 17 0300 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: 691
Issue Time: 2012 Jun 16 2150 UTC

ALERT: Geomagnetic K-index of 5
Threshold Reached: 2012 Jun 16 2147 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: SUMSUD
Serial Number: 156
Issue Time: 2012 Jun 16 2130 UTC

SUMMARY: Geomagnetic Sudden Impulse
Observed: 2012 Jun 16 2115 UTC
Deviation: 25 nT
Station: BOU


Space Weather Message Code: WARK05
Serial Number: 778
Issue Time: 2012 Jun 16 2120 UTC

WARNING: Geomagnetic K-index of 5 expected
Valid From: 2012 Jun 16 2119 UTC
Valid To: 2012 Jun 17 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: 114
Issue Time: 2012 Jun 16 2047 UTC

WARNING: Geomagnetic Sudden Impulse expected
Valid From: 2012 Jun 16 2105 UTC
Valid To: 2012 Jun 16 2135 UTC
IP Shock Passage Observed: 2012 Jun 16 2031 UTC


Space Weather Message Code: SUMSUD
Serial Number: 155
Issue Time: 2012 Jun 16 2033 UTC

SUMMARY: Geomagnetic Sudden Impulse
Observed: 2012 Jun 16 2019 UTC
Deviation: 28 nT
Station: BOU


Space Weather Message Code: ALTK04
Serial Number: 1590
Issue Time: 2012 Jun 16 2026 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2012 Jun 16 2022 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: ALTPX1
Serial Number: 289
Issue Time: 2012 Jun 16 2011 UTC

ALERT: Proton Event 10MeV Integral Flux exceeded 10pfu
Begin Time: 2012 Jun 16 1955 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: WARK04
Serial Number: 1946
Issue Time: 2012 Jun 16 1941 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2012 Jun 16 1940 UTC
Valid To: 2012 Jun 17 0740 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: WARSUD
Serial Number: 113
Issue Time: 2012 Jun 16 1938 UTC

WARNING: Geomagnetic Sudden Impulse expected
Valid From: 2012 Jun 16 2015 UTC
Valid To: 2012 Jun 16 2045 UTC
IP Shock Passage Observed: 2012 Jun 16 1931 UTC


Space Weather Message Code: WARPX1
Serial Number: 358
Issue Time: 2012 Jun 16 1716 UTC

WARNING: Proton 10MeV Integral Flux above 10pfu expected
Valid From: 2012 Jun 16 1715 UTC
Valid To: 2012 Jun 17 1715 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: SUMSUD
Serial Number: 154
Issue Time: 2012 Jun 16 1009 UTC

SUMMARY: Geomagnetic Sudden Impulse
Observed: 2012 Jun 16 0957 UTC
Deviation: 28 nT
Station: Boulder


Space Weather Message Code: WATA20
Serial Number: 494
Issue Time: 2012 Jun 14 2105 UTC

WATCH: Geomagnetic A-index of 20 or greater predicted
NOAA Scale: Periods reaching the G1 (Minor) Level Likely
Valid for UTC Day: 2012 Jun 17
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: 375
Issue Time: 2012 Jun 14 2044 UTC

ALERT: Type IV Radio Emission
Begin Time: 2012 Jun 14 1349 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: 544
Issue Time: 2012 Jun 14 1541 UTC

SUMMARY: 10cm Radio Burst
Begin Time: 2012 Jun 14 1343 UTC
Maximum Time: 2012 Jun 14 1424 UTC
End Time: 2012 Jun 14 1516 UTC
Duration: 103 minutes
Peak Flux: 1400 sfu
Latest Penticton Noon Flux: 143 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: SUM10R
Serial Number: 543
Issue Time: 2012 Jun 13 1416 UTC

SUMMARY: 10cm Radio Burst
Begin Time: 2012 Jun 13 1332 UTC
Maximum Time: 2012 Jun 13 1343 UTC
End Time: 2012 Jun 13 1347 UTC
Duration: 15 minutes
Peak Flux: 260 sfu
Latest Penticton Noon Flux: 141 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: 374
Issue Time: 2012 Jun 13 1416 UTC

ALERT: Type IV Radio Emission
Begin Time: 2012 Jun 13 1325 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: WARK04
Serial Number: 1945
Issue Time: 2012 Jun 11 2356 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 1944
Valid From: 2012 Jun 11 1900 UTC
Now Valid Until: 2012 Jun 12 0800 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: ALTK05
Serial Number: 690
Issue Time: 2012 Jun 11 2354 UTC

ALERT: Geomagnetic K-index of 5
Threshold Reached: 2012 Jun 11 2346 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: 777
Issue Time: 2012 Jun 11 2344 UTC

WARNING: Geomagnetic K-index of 5 expected
Valid From: 2012 Jun 11 2344 UTC
Valid To: 2012 Jun 12 0400 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: 1589
Issue Time: 2012 Jun 11 2240 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2012 Jun 11 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: 1944
Issue Time: 2012 Jun 11 1854 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2012 Jun 11 1900 UTC
Valid To: 2012 Jun 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: 1915
Issue Time: 2012 Jun 11 1321 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 1914
Begin Time: 2012 Jun 06 1210 UTC
Yesterday Maximum 2MeV Flux: 10295 pfu
Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.


Space Weather Message Code: ALTEF3
Serial Number: 1914
Issue Time: 2012 Jun 10 0502 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 1913
Begin Time: 2012 Jun 06 1210 UTC
Yesterday Maximum 2MeV Flux: 8370 pfu
Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.


Space Weather Message Code: SUM10R
Serial Number: 542
Issue Time: 2012 Jun 09 1144 UTC

SUMMARY: 10cm Radio Burst
Begin Time: 2012 Jun 09 1130 UTC
Maximum Time: 2012 Jun 09 1130 UTC
End Time: 2012 Jun 09 1132 UTC
Duration: 2 minutes
Peak Flux: 150 sfu
Latest Penticton Noon Flux: 124 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: 1913
Issue Time: 2012 Jun 09 0511 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 1912
Begin Time: 2012 Jun 06 1210 UTC
Yesterday Maximum 2MeV Flux: 7782 pfu
Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.


Space Weather Message Code: ALTEF3
Serial Number: 1912
Issue Time: 2012 Jun 08 0501 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 1911
Begin Time: 2012 Jun 06 1210 UTC
Yesterday Maximum 2MeV Flux: 10230 pfu
Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.


Space Weather Message Code: ALTTP2
Serial Number: 799
Issue Time: 2012 Jun 08 0346 UTC

ALERT: Type II Radio Emission
Begin Time: 2012 Jun 08 0305 UTC
Estimated Velocity: 803 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: 373
Issue Time: 2012 Jun 08 0346 UTC

ALERT: Type IV Radio Emission
Begin Time: 2012 Jun 08 0308 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: 1911
Issue Time: 2012 Jun 07 0501 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 1910
Begin Time: 2012 Jun 06 1210 UTC
Yesterday Maximum 2MeV Flux: 8243 pfu
Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.


Space Weather Message Code: ALTTP2
Serial Number: 798
Issue Time: 2012 Jun 06 2103 UTC

ALERT: Type II Radio Emission
Begin Time: 2012 Jun 06 2003 UTC
Estimated Velocity: 1148 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: 1588
Issue Time: 2012 Jun 06 2022 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2012 Jun 06 2016 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: ALTTP4
Serial Number: 372
Issue Time: 2012 Jun 06 2018 UTC

ALERT: Type IV Radio Emission
Begin Time: 2012 Jun 06 2003 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: WARK04
Serial Number: 1943
Issue Time: 2012 Jun 06 1935 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2012 Jun 06 1935 UTC
Valid To: 2012 Jun 07 0700 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: 1910
Issue Time: 2012 Jun 06 1227 UTC

ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Threshold Reached: 2012 Jun 06 1210 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: 1942
Issue Time: 2012 Jun 05 2054 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 1941
Valid From: 2012 Jun 04 2145 UTC
Now Valid Until: 2012 Jun 05 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: 1941
Issue Time: 2012 Jun 05 1343 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 1940
Valid From: 2012 Jun 04 2145 UTC
Now Valid Until: 2012 Jun 05 2100 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: 1940
Issue Time: 2012 Jun 05 0618 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 1939
Valid From: 2012 Jun 04 2145 UTC
Now Valid Until: 2012 Jun 05 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: 1587
Issue Time: 2012 Jun 05 0446 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2012 Jun 05 0444 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: 1939
Issue Time: 2012 Jun 04 2142 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2012 Jun 04 2145 UTC
Valid To: 2012 Jun 05 0700 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: 1938
Issue Time: 2012 Jun 04 1413 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 1937
Valid From: 2012 Jun 04 0800 UTC
Now Valid Until: 2012 Jun 04 2100 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: 1586
Issue Time: 2012 Jun 04 1102 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2012 Jun 04 1058 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: 1937
Issue Time: 2012 Jun 04 0755 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2012 Jun 04 0800 UTC
Valid To: 2012 Jun 04 1500 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: 493
Issue Time: 2012 Jun 03 1948 UTC

WATCH: Geomagnetic A-index of 20 or greater predicted
NOAA Scale: Periods reaching the G1 (Minor) Level Likely
Valid for UTC Day: 2012 Jun 05
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: WATA20
Serial Number: 491
Issue Time: 2012 Jun 03 1947 UTC

WATCH: Geomagnetic A-index of 20 or greater predicted
NOAA Scale: Periods reaching the G1 (Minor) Level Likely
Valid for UTC Day: 2012 Jun 04
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: WATA20
Serial Number: 492
Issue Time: 2012 Jun 03 1947 UTC

WATCH: Geomagnetic A-index of 20 or greater predicted
NOAA Scale: Periods reaching the G1 (Minor) Level Likely
Valid for UTC Day: 2012 Jun 04
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: ALTTP2
Serial Number: 797
Issue Time: 2012 Jun 03 1830 UTC

ALERT: Type II Radio Emission
Begin Time: 2012 Jun 03 1759 UTC
Estimated Velocity: 1077 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: 541
Issue Time: 2012 Jun 03 1808 UTC

SUMMARY: 10cm Radio Burst
Begin Time: 2012 Jun 03 1752 UTC
Maximum Time: 2012 Jun 03 1753 UTC
End Time: 2012 Jun 03 1754 UTC
Duration: 2 minutes
Peak Flux: 320 sfu
Latest Penticton Noon Flux: 129 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: ALTK05
Serial Number: 689
Issue Time: 2012 Jun 03 1720 UTC

ALERT: Geomagnetic K-index of 5
Threshold Reached: 2012 Jun 03 1705 UTC
Synoptic Period: 1500-1800 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: 776
Issue Time: 2012 Jun 03 1457 UTC

WARNING: Geomagnetic K-index of 5 expected
Valid From: 2012 Jun 03 1458 UTC
Valid To: 2012 Jun 03 2100 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: 1585
Issue Time: 2012 Jun 03 1452 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2012 Jun 03 1448 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: 1936
Issue Time: 2012 Jun 03 1317 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2012 Jun 03 1317 UTC
Valid To: 2012 Jun 04 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: SUMSUD
Serial Number: 153
Issue Time: 2012 Jun 03 0929 UTC

SUMMARY: Geomagnetic Sudden Impulse
Observed: 2012 Jun 03 0900 UTC
Deviation: 185 nT
Station: College


Space Weather Message Code: ALTK04
Serial Number: 1584
Issue Time: 2012 Jun 02 2359 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2012 Jun 02 2357 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: 1935
Issue Time: 2012 Jun 02 2224 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2012 Jun 02 2225 UTC
Valid To: 2012 Jun 03 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: ALTTP2
Serial Number: 796
Issue Time: 2012 Jun 01 2314 UTC

ALERT: Type II Radio Emission
Begin Time: 2012 Jun 01 2232 UTC
Estimated Velocity: 1151 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.