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 2010


Space Weather Message Code: ALTK04
Serial Number: 1437
Issue Time: 2010 Mar 28 0537 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2010 Mar 28 0536 UTC
Synoptic Period: 0300-0600 UTC
Station: Boulder
Active Warning: No


Space Weather Message Code: ALTTP2
Serial Number: 695
Issue Time: 2010 Mar 25 0154 UTC

ALERT: Type II Radio Emission
Begin Time: 2010 Mar 25 0128 UTC
Estimated Velocity: 1395 km/s


Space Weather Message Code: ALTK04
Serial Number: 1436
Issue Time: 2010 Mar 20 0839 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2010 Mar 20 0838 UTC
Synoptic Period: 0600-0900 UTC
Station: Boulder
Active Warning: No


Space Weather Message Code: ALTTP2
Serial Number: 694
Issue Time: 2010 Mar 18 2357 UTC

ALERT: Type II Radio Emission
Begin Time: 2010 Mar 18 2311 UTC
Estimated Velocity: 776 km/s


Space Weather Message Code: ALTEF3
Serial Number: 1648
Issue Time: 2010 Mar 15 1206 UTC

ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Threshold Reached: 2010 Mar 15 1150 UTC
Station: GOES-11


Space Weather Message Code: ALTEF3
Serial Number: 1647
Issue Time: 2010 Mar 14 0920 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 1646
Begin Time: 2010 Mar 13 1000 UTC
Yesterday Maximum 2MeV Flux: 2950 pfu


Space Weather Message Code: ALTTP4
Serial Number: 317
Issue Time: 2010 Mar 14 0043 UTC

ALERT: Type IV Radio Emission
Begin Time: 2010 Mar 13 2345 UTC


Space Weather Message Code: ALTEF3
Serial Number: 1646
Issue Time: 2010 Mar 13 1018 UTC

ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Threshold Reached: 2010 Mar 13 1000 UTC
Station: GOES11


Space Weather Message Code: ALTEF3
Serial Number: 1645
Issue Time: 2010 Mar 12 1551 UTC

ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Threshold Reached: 2010 Mar 12 1535 UTC
Station: GOES11


Space Weather Message Code: ALTK04
Serial Number: 1435
Issue Time: 2010 Mar 12 0521 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2010 Mar 12 0521 UTC
Synoptic Period: 0300-0600 UTC
Station: Boulder
Active Warning: Yes


Space Weather Message Code: WARK04
Serial Number: 1605
Issue Time: 2010 Mar 12 0517 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2010 Mar 12 0520 UTC
Valid To: 2010 Mar 12 1600 UTC
Warning Condition: Onset