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Space Weather Alerts

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Alerts Issued in February 2013


Space Weather Message Code: SUM10R
Serial Number: 572
Issue Time: 2013 Feb 17 1601 UTC

SUMMARY: 10cm Radio Burst
Begin Time: 2013 Feb 17 1547 UTC
Maximum Time: 2013 Feb 17 1547 UTC
End Time: 2013 Feb 17 1551 UTC
Duration: 4 minutes
Peak Flux: 340 sfu
Latest Penticton Noon Flux: 103 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: 1626
Issue Time: 2013 Feb 16 1735 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2013 Feb 16 1730 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: 2048
Issue Time: 2013 Feb 16 1713 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2013 Feb 16 1711 UTC
Valid To: 2013 Feb 16 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: SUMSUD
Serial Number: 167
Issue Time: 2013 Feb 16 1217 UTC

SUMMARY: Geomagnetic Sudden Impulse
Observed: 2013 Feb 16 1210 UTC
Deviation: 10 nT
Station: Boulder


Space Weather Message Code: WARSUD
Serial Number: 125
Issue Time: 2013 Feb 16 1145 UTC

WARNING: Geomagnetic Sudden Impulse expected
Valid From: 2013 Feb 16 1145 UTC
Valid To: 2013 Feb 16 1215 UTC
IP Shock Passage Observed: 2013 Feb 16 1058 UTC


Space Weather Message Code: WARK04
Serial Number: 2047
Issue Time: 2013 Feb 14 1157 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 2046
Valid From: 2013 Feb 13 2319 UTC
Now Valid Until: 2013 Feb 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: 822
Issue Time: 2013 Feb 14 0347 UTC

CANCEL WARNING: Geomagnetic K-index of 5 expected
Cancel Serial Number: 821
Original Issue Time: 2013 Feb 13 2339 UTC

Comment: Conditions for this warning no longer exist.
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: 821
Issue Time: 2013 Feb 13 2339 UTC

WARNING: Geomagnetic K-index of 5 expected
Valid From: 2013 Feb 13 2338 UTC
Valid To: 2013 Feb 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: ALTK04
Serial Number: 1625
Issue Time: 2013 Feb 13 2327 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2013 Feb 13 2325 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: 2046
Issue Time: 2013 Feb 13 2320 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2013 Feb 13 2319 UTC
Valid To: 2013 Feb 14 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: WATA20
Serial Number: 511
Issue Time: 2013 Feb 07 1721 UTC

WATCH: Geomagnetic Storm Category G1 Predicted
Highest Storm Level Predicted by Day:
Feb 08: G1 (Minor) Feb 09: None (Below G1) Feb 10: 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: ALTTP4
Serial Number: 401
Issue Time: 2013 Feb 06 0113 UTC

ALERT: Type IV Radio Emission
Begin Time: 2013 Feb 06 0017 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: 837
Issue Time: 2013 Feb 06 0111 UTC

ALERT: Type II Radio Emission
Begin Time: 2013 Feb 06 0013 UTC
Estimated Velocity: 548 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: 836
Issue Time: 2013 Feb 04 1710 UTC

ALERT: Type II Radio Emission
Begin Time: 2013 Feb 04 1502 UTC
Estimated Velocity: 849 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: WARK04
Serial Number: 2045
Issue Time: 2013 Feb 02 1904 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2013 Feb 02 1930 UTC
Valid To: 2013 Feb 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.