NOAA / Space Weather Prediction Center

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Space Weather Alerts

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Alerts Issued in February 2009


Space Weather Message Code: ALTK04
Serial Number: 1404
Issue Time: 2009 Feb 27 1018 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2009 Feb 27 1017 UTC
Synoptic Period: 0900-1200 UTC
Station: Boulder
Active Warning: Yes


Space Weather Message Code: WARK04
Serial Number: 1585
Issue Time: 2009 Feb 27 1014 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2009 Feb 27 1014 UTC
Valid To: 2009 Feb 27 1600 UTC
Warning Condition: Onset


Space Weather Message Code: ALTEF3
Serial Number: 1632
Issue Time: 2009 Feb 18 1742 UTC

ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Threshold Reached: 2009 Feb 18 1725 UTC
Station: GOES11
Observed Yesterday: Yes
Yesterday Maximum 2MeV Flux: 1270 pfu


Space Weather Message Code: ALTEF3
Serial Number: 1631
Issue Time: 2009 Feb 17 1744 UTC

ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Threshold Reached: 2009 Feb 17 1725 UTC
Station: GOES11
Observed Yesterday: Yes
Yesterday Maximum 2MeV Flux: 2030 pfu


Space Weather Message Code: ALTEF3
Serial Number: 1630
Issue Time: 2009 Feb 16 1521 UTC

ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Threshold Reached: 2009 Feb 16 1505 UTC
Station: GOES11
Observed Yesterday: Yes
Yesterday Maximum 2MeV Flux: 1610 pfu


Space Weather Message Code: ALTEF3
Serial Number: 1629
Issue Time: 2009 Feb 15 1844 UTC

ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Threshold Reached: 2009 Feb 15 1825 UTC
Station: GOES11
Observed Yesterday: No


Space Weather Message Code: WARK04
Serial Number: 1584
Issue Time: 2009 Feb 14 2339 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 1583
Valid From: 2009 Feb 14 0600 UTC
Now Valid Until: 2009 Feb 15 0600 UTC
Warning Condition: Persistence


Space Weather Message Code: WARK04
Serial Number: 1583
Issue Time: 2009 Feb 14 1523 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 1582
Valid From: 2009 Feb 14 0600 UTC
Now Valid Until: 2009 Feb 14 2359 UTC
Warning Condition: Persistence


Space Weather Message Code: ALTK05
Serial Number: 625
Issue Time: 2009 Feb 14 0749 UTC

ALERT: Geomagnetic K-index of 5
Threshold Reached: 2009 Feb 14 0747 UTC
Synoptic Period: 0600-0900 UTC
Station: Boulder
Active Warning: No
NOAA Scale: G1 - Minor


Space Weather Message Code: ALTK04
Serial Number: 1403
Issue Time: 2009 Feb 14 0744 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2009 Feb 14 0742 UTC
Synoptic Period: 0600-0900 UTC
Station: Boulder
Active Warning: Yes


Space Weather Message Code: WARK04
Serial Number: 1582
Issue Time: 2009 Feb 14 0535 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2009 Feb 14 0600 UTC
Valid To: 2009 Feb 14 1600 UTC
Warning Condition: Onset


Space Weather Message Code: ALTK04
Serial Number: 1402
Issue Time: 2009 Feb 05 0204 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2009 Feb 05 0202 UTC
Synoptic Period: 0000-0300 UTC
Station: Boulder
Active Warning: No


Space Weather Message Code: WARK04
Serial Number: 1581
Issue Time: 2009 Feb 04 1427 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2009 Feb 04 1427 UTC
Valid To: 2009 Feb 04 2359 UTC
Warning Condition: Onset


Space Weather Message Code: ALTK05
Serial Number: 624
Issue Time: 2009 Feb 04 1143 UTC

ALERT: Geomagnetic K-index of 5
Threshold Reached: 2009 Feb 04 1142 UTC
Synoptic Period: 0900-1200 UTC
Station: Boulder
Active Warning: No
NOAA Scale: G1 - Minor


Space Weather Message Code: ALTK04
Serial Number: 1401
Issue Time: 2009 Feb 04 1049 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2009 Feb 04 1048 UTC
Synoptic Period: 0900-1200 UTC
Station: Boulder
Active Warning: No


Space Weather Message Code: SUMSUD
Serial Number: 93
Issue Time: 2009 Feb 03 2027 UTC

SUMMARY: Geomagnetic Sudden Impulse
Observed: 2009 Feb 03 2014 UTC
Deviation: 10 nT
Station: Boulder