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Alerts Issued in November 2012


Space Weather Message Code: SUMSUD
Serial Number: 165
Issue Time: 2012 Nov 26 0530 UTC

SUMMARY: Geomagnetic Sudden Impulse
Observed: 2012 Nov 26 0514 UTC
Deviation: 8 nT
Station: Boulder


Space Weather Message Code: WARK04
Serial Number: 2034
Issue Time: 2012 Nov 26 0511 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2012 Nov 26 0520 UTC
Valid To: 2012 Nov 26 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: WARSUD
Serial Number: 123
Issue Time: 2012 Nov 26 0453 UTC

WARNING: Geomagnetic Sudden Impulse expected
Valid From: 2012 Nov 26 0510 UTC
Valid To: 2012 Nov 26 0550 UTC
IP Shock Passage Observed: 2012 Nov 26 0437 UTC


Space Weather Message Code: WATA20
Serial Number: 507
Issue Time: 2012 Nov 25 2125 UTC

CANCEL WATCH: Geomagnetic Storm Category G1 Predicted
Cancel Serial Number: 506
Original Issue Time: 2012 Nov 24 2126 UTC

Comment: G1 conditions are no longer expected.
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: 506
Issue Time: 2012 Nov 24 2126 UTC

WATCH: Geomagnetic Storm Category G1 Predicted
Highest Storm Level Predicted by Day:
Nov 25: G1 (Minor) Nov 26: None (Below G1) Nov 27: None (Below G1)
THIS SUPERSEDES ANY/ALL PRIOR WATCHES IN EFFECT
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: 832
Issue Time: 2012 Nov 24 1428 UTC

ALERT: Type II Radio Emission
Begin Time: 2012 Nov 24 1335 UTC
Estimated Velocity: 685 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: WARK05
Serial Number: 818
Issue Time: 2012 Nov 23 2246 UTC

WARNING: Geomagnetic K-index of 5 expected
Valid From: 2012 Nov 23 2300 UTC
Valid To: 2012 Nov 24 1100 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: 1621
Issue Time: 2012 Nov 23 2230 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2012 Nov 23 2215 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: SUMSUD
Serial Number: 164
Issue Time: 2012 Nov 23 2201 UTC

SUMMARY: Geomagnetic Sudden Impulse
Observed: 2012 Nov 23 2156 UTC
Deviation: 25 nT
Station: BOU


Space Weather Message Code: WARK04
Serial Number: 2033
Issue Time: 2012 Nov 23 2122 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2012 Nov 23 2200 UTC
Valid To: 2012 Nov 24 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: WARSUD
Serial Number: 122
Issue Time: 2012 Nov 23 2119 UTC

WARNING: Geomagnetic Sudden Impulse expected
Valid From: 2012 Nov 23 2200 UTC
Valid To: 2012 Nov 23 2230 UTC
IP Shock Passage Observed: 2012 Nov 23 2112 UTC


Space Weather Message Code: ALTEF3
Serial Number: 1983
Issue Time: 2012 Nov 23 1305 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 1982
Begin Time: 2012 Nov 22 1545 UTC
Yesterday Maximum 2MeV Flux: 1200 pfu
Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.


Space Weather Message Code: ALTEF3
Serial Number: 1982
Issue Time: 2012 Nov 22 1607 UTC

ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Threshold Reached: 2012 Nov 22 1545 UTC
Station: GOES13
Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.


Space Weather Message Code: WATA20
Serial Number: 505
Issue Time: 2012 Nov 22 0647 UTC

CANCEL WATCH: Geomagnetic Storm Category G1 Predicted
Cancel Serial Number: 504
Original Issue Time: 2012 Nov 21 0636 UTC

Comment: This watch is rendered obsolete by a subsequent watch. See new watch, serial number 100, issued 22 Nov 2012 at 0638 UTC for the latest information.
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: WATA30
Serial Number: 100
Issue Time: 2012 Nov 22 0638 UTC

WATCH: Geomagnetic Storm Category G2 Predicted
Highest Storm Level Predicted by Day:
Nov 23: G1 (Minor) Nov 24: G2 (Moderate) Nov 25: None (Below G1)
THIS SUPERSEDES ANY/ALL PRIOR WATCHES IN EFFECT

Comment: The timing and intensity of geomagnetic storming were revised based on updated data and subsequent analysis.
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: WATA30
Serial Number: 99
Issue Time: 2012 Nov 21 2207 UTC

WATCH: Geomagnetic Storm Category G2 Predicted
Highest Storm Level Predicted by Day:
Nov 22: None (Below G1) Nov 23: G2 (Moderate) Nov 24: G1 (Minor)
THIS SUPERSEDES ANY/ALL PRIOR WATCHES IN EFFECT
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: SUM10R
Serial Number: 569
Issue Time: 2012 Nov 21 1722 UTC

SUMMARY: 10cm Radio Burst
Begin Time: 2012 Nov 21 1521 UTC
Maximum Time: 2012 Nov 21 1523 UTC
End Time: 2012 Nov 21 1559 UTC
Duration: 38 minutes
Peak Flux: 200 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: 398
Issue Time: 2012 Nov 21 1606 UTC

ALERT: Type IV Radio Emission
Begin Time: 2012 Nov 21 1531 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: 831
Issue Time: 2012 Nov 21 1604 UTC

ALERT: Type II Radio Emission
Begin Time: 2012 Nov 21 1533 UTC
Estimated Velocity: 1918 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: 397
Issue Time: 2012 Nov 21 0729 UTC

ALERT: Type IV Radio Emission
Begin Time: 2012 Nov 21 0703 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: 830
Issue Time: 2012 Nov 21 0728 UTC

ALERT: Type II Radio Emission
Begin Time: 2012 Nov 21 0654 UTC
Estimated Velocity: 720 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: WATA20
Serial Number: 504
Issue Time: 2012 Nov 21 0636 UTC

WATCH: Geomagnetic Storm Category G1 Predicted
Highest Storm Level Predicted by Day:
Nov 22: None (Below G1) Nov 23: None (Below G1) Nov 24: G1 (Minor)
THIS SUPERSEDES ANY/ALL PRIOR WATCHES IN EFFECT
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: 2032
Issue Time: 2012 Nov 21 0557 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 2031
Valid From: 2012 Nov 20 1953 UTC
Now Valid Until: 2012 Nov 21 1200 UTC
Warning Condition: Persistance
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: 2031
Issue Time: 2012 Nov 21 0228 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 2030
Valid From: 2012 Nov 20 1953 UTC
Now Valid Until: 2012 Nov 21 0600 UTC
Warning Condition: Persistance
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: 1620
Issue Time: 2012 Nov 20 2004 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2012 Nov 20 1958 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: 2030
Issue Time: 2012 Nov 20 1953 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2012 Nov 20 1953 UTC
Valid To: 2012 Nov 21 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: ALTEF3
Serial Number: 1981
Issue Time: 2012 Nov 19 1312 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 1980
Begin Time: 2012 Nov 16 0120 UTC
Yesterday Maximum 2MeV Flux: 1512 pfu
Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.


Space Weather Message Code: ALTEF3
Serial Number: 1980
Issue Time: 2012 Nov 18 1154 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 1979
Begin Time: 2012 Nov 16 0120 UTC
Yesterday Maximum 2MeV Flux: 3160 pfu
Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.


Space Weather Message Code: ALTEF3
Serial Number: 1979
Issue Time: 2012 Nov 17 0654 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 1978
Begin Time: 2012 Nov 16 0120 UTC
Yesterday Maximum 2MeV Flux: 1420 pfu
Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.


Space Weather Message Code: ALTEF3
Serial Number: 1978
Issue Time: 2012 Nov 17 0152 UTC

ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Threshold Reached: 2012 Nov 16 0120 UTC
Station: GOES-13
Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.


Space Weather Message Code: ALTTP2
Serial Number: 829
Issue Time: 2012 Nov 16 1605 UTC

ALERT: Type II Radio Emission
Begin Time: 2012 Nov 16 1540 UTC
Estimated Velocity: 511 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: ALTK06
Serial Number: 300
Issue Time: 2012 Nov 14 0600 UTC

ALERT: Geomagnetic K-index of 6
Threshold Reached: 2012 Nov 14 0600 UTC
Synoptic Period: 0300-0600 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: WARK04
Serial Number: 2029
Issue Time: 2012 Nov 14 0548 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 2028
Valid From: 2012 Nov 13 1533 UTC
Now Valid Until: 2012 Nov 14 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: 817
Issue Time: 2012 Nov 14 0548 UTC

EXTENDED WARNING: Geomagnetic K-index of 5 expected
Extension to Serial Number: 816
Valid From: 2012 Nov 14 0100 UTC
Now Valid Until: 2012 Nov 14 1500 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: 218
Issue Time: 2012 Nov 14 0548 UTC

EXTENDED WARNING: Geomagnetic K-Index of 6 expected
Extension to Serial Number: 217
Valid From: 2012 Nov 14 0300 UTC
Now Valid Until: 2012 Nov 14 1200 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: 217
Issue Time: 2012 Nov 14 0316 UTC

WARNING: Geomagnetic K-Index of 6 expected
Valid From: 2012 Nov 14 0300 UTC
Valid To: 2012 Nov 14 0600 UTC
Warning Condition: Onset
NOAA Scale: G2 - Moderate

Comment: Issued to amend the prior warning for correct date in the valid time.
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: 216
Issue Time: 2012 Nov 14 0315 UTC

CANCEL WARNING: Geomagnetic K-Index of 6 expected
Cancel Serial Number: 215
Original Issue Time: 2012 Nov 14 0243 UTC

Comment: Cancelled to amend for incorrect date. A new warning with the same valid times for the 14th to be issued immediately.
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: ALTK06
Serial Number: 299
Issue Time: 2012 Nov 14 0306 UTC

ALERT: Geomagnetic K-index of 6
Threshold Reached: 2012 Nov 14 0304 UTC
Synoptic Period: 0300-0600 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: 215
Issue Time: 2012 Nov 14 0243 UTC

WARNING: Geomagnetic K-Index of 6 expected
Valid From: 2012 Nov 15 0300 UTC
Valid To: 2012 Nov 15 0600 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: 708
Issue Time: 2012 Nov 14 0205 UTC

ALERT: Geomagnetic K-index of 5
Threshold Reached: 2012 Nov 14 0148 UTC
Synoptic Period: 0000-0300 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: 816
Issue Time: 2012 Nov 14 0055 UTC

WARNING: Geomagnetic K-index of 5 expected
Valid From: 2012 Nov 14 0100 UTC
Valid To: 2012 Nov 14 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: SUM10R
Serial Number: 568
Issue Time: 2012 Nov 13 2141 UTC

SUMMARY: 10cm Radio Burst
Begin Time: 2012 Nov 13 2052 UTC
Maximum Time: 2012 Nov 13 2053 UTC
End Time: 2012 Nov 13 2054 UTC
Duration: 2 minutes
Peak Flux: 220 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: WARK04
Serial Number: 2028
Issue Time: 2012 Nov 13 2059 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 2027
Valid From: 2012 Nov 13 1533 UTC
Now Valid Until: 2012 Nov 14 0600 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: 1619
Issue Time: 2012 Nov 13 1803 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2012 Nov 13 1800 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: 2027
Issue Time: 2012 Nov 13 1533 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2012 Nov 13 1533 UTC
Valid To: 2012 Nov 13 2100 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: SUMXM5
Serial Number: 100
Issue Time: 2012 Nov 13 1147 UTC

SUMMARY: X-ray Event exceeded M5
Begin Time: 2012 Nov 13 0158 UTC
Maximum Time: 2012 Nov 13 0204 UTC
End Time: 2012 Nov 13 0206 UTC
X-ray Class: M6.0
Location: S22E41
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: ALTTP2
Serial Number: 828
Issue Time: 2012 Nov 13 0231 UTC

ALERT: Type II Radio Emission
Begin Time: 2012 Nov 13 0204 UTC
Estimated Velocity: 1193 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: 184
Issue Time: 2012 Nov 13 0206 UTC

ALERT: X-Ray Flux exceeded M5
Threshold Reached: 2012 Nov 13 0204 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: ALTK04
Serial Number: 1618
Issue Time: 2012 Nov 13 0121 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2012 Nov 13 0103 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: ALTTP2
Serial Number: 827
Issue Time: 2012 Nov 13 0004 UTC

ALERT: Type II Radio Emission
Begin Time: 2012 Nov 12 2328 UTC
Estimated Velocity: 645 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: SUMSUD
Serial Number: 163
Issue Time: 2012 Nov 12 2339 UTC

SUMMARY: Geomagnetic Sudden Impulse
Observed: 2012 Nov 12 2316 UTC
Deviation: 16 nT
Station: Bou


Space Weather Message Code: WARK04
Serial Number: 2026
Issue Time: 2012 Nov 12 2226 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2012 Nov 13 0000 UTC
Valid To: 2012 Nov 13 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: WARSUD
Serial Number: 121
Issue Time: 2012 Nov 12 2224 UTC

WARNING: Geomagnetic Sudden Impulse expected
Valid From: 2012 Nov 12 2315 UTC
Valid To: 2012 Nov 12 2345 UTC
IP Shock Passage Observed: 2012 Nov 12 2220 UTC


Space Weather Message Code: ALTTP2
Serial Number: 826
Issue Time: 2012 Nov 11 0302 UTC

ALERT: Type II Radio Emission
Begin Time: 2012 Nov 11 0228 UTC
Estimated Velocity: 659 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: WATA20
Serial Number: 503
Issue Time: 2012 Nov 10 2015 UTC

WATCH: Geomagnetic Storm Category G1 Predicted
Highest Storm Level Predicted by Day:
Nov 11: None (Below G1) Nov 12: G1 (Minor) Nov 13: G1 (Minor)
THIS SUPERSEDES ANY/ALL PRIOR WATCHES IN EFFECT
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: 825
Issue Time: 2012 Nov 08 0259 UTC

ALERT: Type II Radio Emission
Begin Time: 2012 Nov 08 0220 UTC
Estimated Velocity: 784 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: 1617
Issue Time: 2012 Nov 07 2101 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2012 Nov 07 2100 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: 2025
Issue Time: 2012 Nov 07 2030 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2012 Nov 07 2030 UTC
Valid To: 2012 Nov 08 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: 2024
Issue Time: 2012 Nov 01 1848 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 2023
Valid From: 2012 Nov 01 0730 UTC
Now Valid Until: 2012 Nov 02 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: ALTK04
Serial Number: 1616
Issue Time: 2012 Nov 01 1024 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2012 Nov 01 1024 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: 2023
Issue Time: 2012 Nov 01 0725 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2012 Nov 01 0730 UTC
Valid To: 2012 Nov 01 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.