NOAA / Space Weather Prediction Center

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Space Weather Alerts

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Alerts in Graphical Timelines: Past 7 days and Currently in Effect
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Alerts Issued in March 2009


Space Weather Message Code: ALTK04
Serial Number: 1408
Issue Time: 2009 Mar 26 0726 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2009 Mar 26 0725 UTC
Synoptic Period: 0600-0900 UTC
Station: Boulder
Active Warning: No


Space Weather Message Code: ALTK04
Serial Number: 1407
Issue Time: 2009 Mar 25 0325 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2009 Mar 25 0324 UTC
Synoptic Period: 0300-0600 UTC
Station: Boulder
Active Warning: No


Space Weather Message Code: ALTK04
Serial Number: 1406
Issue Time: 2009 Mar 25 0254 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2009 Mar 25 0250 UTC
Synoptic Period: 0000-0300 UTC
Station: Boulder
Active Warning: No


Space Weather Message Code: ALTEF3
Serial Number: 1638
Issue Time: 2009 Mar 18 1635 UTC

ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Threshold Reached: 2009 Mar 18 1620 UTC
Station: GOES-11
Observed Yesterday: Yes
Yesterday Maximum 2MeV Flux: 1860 pfu


Space Weather Message Code: ALTEF3
Serial Number: 1637
Issue Time: 2009 Mar 17 1623 UTC

ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Threshold Reached: 2009 Mar 17 1610 UTC
Station: GOES11
Observed Yesterday: Yes
Yesterday Maximum 2MeV Flux: 2200 pfu


Space Weather Message Code: ALTEF3
Serial Number: 1636
Issue Time: 2009 Mar 16 1726 UTC

ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Threshold Reached: 2009 Mar 16 1615 UTC
Station: GOES11
Observed Yesterday: Yes
Yesterday Maximum 2MeV Flux: 3340 pfu


Space Weather Message Code: ALTEF3
Serial Number: 1634
Issue Time: 2009 Mar 15 1248 UTC

ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Threshold Reached: 2009 Mar 15 1230 UTC
Station: GOES11
Observed Yesterday: Yes
Yesterday Maximum 2MeV Flux: 1030 pfu


Space Weather Message Code: ALTEF3
Serial Number: 1633
Issue Time: 2009 Mar 14 1939 UTC

ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Threshold Reached: 2009 Mar 14 1920 UTC
Station: GOES11
Observed Yesterday: No


Space Weather Message Code: ALTK04
Serial Number: 1405
Issue Time: 2009 Mar 13 0049 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2009 Mar 13 0048 UTC
Synoptic Period: 0000-0300 UTC
Station: Boulder
Active Warning: Yes


Space Weather Message Code: WARK04
Serial Number: 1586
Issue Time: 2009 Mar 12 2311 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2009 Mar 12 2315 UTC
Valid To: 2009 Mar 13 1600 UTC
Warning Condition: Onset


Space Weather Message Code: SUMSUD
Serial Number: 94
Issue Time: 2009 Mar 03 0613 UTC

SUMMARY: Geomagnetic Sudden Impulse
Observed: 2009 Mar 03 0602 UTC
Deviation: 10 nT
Station: Boulder