NOAA / Space Weather Prediction Center

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Space Weather Alerts

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Alerts Issued in February 2012


Space Weather Message Code: ALTEF3
Serial Number: 1860
Issue Time: 2012 Feb 09 1127 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 1859
Begin Time: 2012 Feb 08 2115 UTC
Yesterday Maximum 2MeV Flux: 1190 pfu
Potential Impacts: Satellite systems may experience significant
charging resulting in increased risk to satellite systems.


Space Weather Message Code: ALTEF3
Serial Number: 1859
Issue Time: 2012 Feb 08 2132 UTC

ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Threshold Reached: 2012 Feb 08 2115 UTC
Station: GOES-13
Potential Impacts: Satellite systems may experience significant
charging resulting in increased risk to satellite systems.


Space Weather Message Code: ALTK04
Serial Number: 1556
Issue Time: 2012 Feb 07 2101 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2012 Feb 07 2059 UTC
Synoptic Period: 1800-2100 UTC
Active Warning: Yes
Potential Impacts: Area of impact primarily poleward of 65 degrees
Geomagnetic Latitude. Weak power grid fluctuations can occur. Aurora
may be visible at high latitudes such as Canada and Alaska.


Space Weather Message Code: WARK04
Serial Number: 1860
Issue Time: 2012 Feb 07 2033 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2012 Feb 07 2040 UTC
Valid To: 2012 Feb 08 0600 UTC
Warning Condition: Onset
Potential Impacts: Area of impact primarily poleward of 65 degrees
Geomagnetic Latitude. Weak power grid fluctuations can occur. Aurora
may be visible at high latitudes such as Canada and Alaska.