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 September 2010


Space Weather Message Code: WARK04
Serial Number: 1666
Issue Time: 2010 Sep 28 0830 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2010 Sep 28 0840 UTC
Valid To: 2010 Sep 28 1600 UTC
Warning Condition: Onset


Space Weather Message Code: WARK04
Serial Number: 1665
Issue Time: 2010 Sep 24 1641 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2010 Sep 24 1645 UTC
Valid To: 2010 Sep 25 1600 UTC
Warning Condition: Onset


Space Weather Message Code: WARK04
Serial Number: 1664
Issue Time: 2010 Sep 21 0316 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2010 Sep 21 0345 UTC
Valid To: 2010 Sep 21 0900 UTC
Warning Condition: Onset


Space Weather Message Code: ALTK04
Serial Number: 1480
Issue Time: 2010 Sep 17 0544 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2010 Sep 17 0540 UTC
Synoptic Period: 0300-0600 UTC
Station: Boulder
Active Warning: No


Space Weather Message Code: WARK04
Serial Number: 1663
Issue Time: 2010 Sep 16 1627 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2010 Sep 16 1627 UTC
Valid To: 2010 Sep 16 2100 UTC
Warning Condition: Onset


Space Weather Message Code: ALTK04
Serial Number: 1479
Issue Time: 2010 Sep 14 0744 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2010 Sep 14 0740 UTC
Synoptic Period: 0600-0900 UTC
Station: Boulder
Active Warning: Yes


Space Weather Message Code: WARK04
Serial Number: 1662
Issue Time: 2010 Sep 14 0739 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2010 Sep 14 0740 UTC
Valid To: 2010 Sep 14 0900 UTC
Warning Condition: Onset


Space Weather Message Code: ALTK04
Serial Number: 1478
Issue Time: 2010 Sep 07 1121 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2010 Sep 07 1120 UTC
Synoptic Period: 0900-1200 UTC
Station: Boulder
Active Warning: Yes


Space Weather Message Code: WARK04
Serial Number: 1661
Issue Time: 2010 Sep 07 0942 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2010 Sep 07 0945 UTC
Valid To: 2010 Sep 07 1600 UTC
Warning Condition: Onset


Space Weather Message Code: ALTK04
Serial Number: 1477
Issue Time: 2010 Sep 06 0505 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2010 Sep 06 0502 UTC
Synoptic Period: 0300-0600 UTC
Station: Boulder
Active Warning: Yes


Space Weather Message Code: WARK04
Serial Number: 1660
Issue Time: 2010 Sep 05 2233 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2010 Sep 05 2300 UTC
Valid To: 2010 Sep 06 1600 UTC
Warning Condition: Onset


Space Weather Message Code: ALTEF3
Serial Number: 1731
Issue Time: 2010 Sep 05 1530 UTC

ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Threshold Reached: 2010 Sep 05 1510 UTC
Station: GOES13


Space Weather Message Code: ALTEF3
Serial Number: 1730
Issue Time: 2010 Sep 02 1437 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 1729
Begin Time: 2010 Aug 25 1555 UTC
Yesterday Maximum 2MeV Flux: 8957 pfu


Space Weather Message Code: ALTEF3
Serial Number: 1729
Issue Time: 2010 Sep 01 0504 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 1728
Begin Time: 2010 Aug 25 1555 UTC
Yesterday Maximum 2MeV Flux: 9364 pfu