NOAA / Space Weather Prediction Center

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Space Weather Alerts

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Alerts Issued in December 2010


Space Weather Message Code: ALTTP2
Serial Number: 704
Issue Time: 2010 Dec 31 1458 UTC

ALERT: Type II Radio Emission
Begin Time: 2010 Dec 31 0424 UTC
Estimated Velocity: 875 km/s


Space Weather Message Code: WARK04
Serial Number: 1685
Issue Time: 2010 Dec 28 1740 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 1684
Valid From: 2010 Dec 28 1330 UTC
Now Valid Until: 2010 Dec 29 0600 UTC
Warning Condition: Persistence


Space Weather Message Code: ALTK05
Serial Number: 649
Issue Time: 2010 Dec 28 1356 UTC

ALERT: Geomagnetic K-index of 5
Threshold Reached: 2010 Dec 28 1356 UTC
Synoptic Period: 1200-1500 UTC
Station: Boulder
Active Warning: Yes
NOAA Scale: G1 - Minor


Space Weather Message Code: WARK05
Serial Number: 673
Issue Time: 2010 Dec 28 1348 UTC

WARNING: Geomagnetic K-index of 5 expected
Valid From: 2010 Dec 28 1348 UTC
Valid To: 2010 Dec 28 1800 UTC
Warning Condition: Onset
NOAA Scale: G1 - Minor


Space Weather Message Code: ALTK04
Serial Number: 1490
Issue Time: 2010 Dec 28 1340 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2010 Dec 28 1337 UTC
Synoptic Period: 1200-1500 UTC
Station: Boulder
Active Warning: Yes


Space Weather Message Code: WARK04
Serial Number: 1684
Issue Time: 2010 Dec 28 1317 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2010 Dec 28 1330 UTC
Valid To: 2010 Dec 28 1800 UTC
Warning Condition: Onset


Space Weather Message Code: WARK04
Serial Number: 1683
Issue Time: 2010 Dec 20 0429 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2010 Dec 20 0430 UTC
Valid To: 2010 Dec 20 1600 UTC
Warning Condition: Onset


Space Weather Message Code: ALTEF3
Serial Number: 1752
Issue Time: 2010 Dec 17 1149 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 1751
Begin Time: 2010 Dec 16 1435 UTC
Yesterday Maximum 2MeV Flux: 1046 pfu


Space Weather Message Code: ALTEF3
Serial Number: 1751
Issue Time: 2010 Dec 16 1453 UTC

ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Threshold Reached: 2010 Dec 16 1435 UTC
Station: GOES13


Space Weather Message Code: WARK05
Serial Number: 672
Issue Time: 2010 Dec 15 0323 UTC

WARNING: Geomagnetic K-index of 5 expected
Valid From: 2010 Dec 15 0330 UTC
Valid To: 2010 Dec 15 1500 UTC
Warning Condition: Onset
NOAA Scale: G1 - Minor


Space Weather Message Code: ALTK04
Serial Number: 1489
Issue Time: 2010 Dec 15 0300 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2010 Dec 15 0257 UTC
Synoptic Period: 0000-0300 UTC
Station: Boulder
Active Warning: Yes


Space Weather Message Code: WARK04
Serial Number: 1682
Issue Time: 2010 Dec 14 2127 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2010 Dec 14 2130 UTC
Valid To: 2010 Dec 15 1600 UTC
Warning Condition: Onset


Space Weather Message Code: ALTK04
Serial Number: 1488
Issue Time: 2010 Dec 12 1742 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2010 Dec 12 1741 UTC
Synoptic Period: 1500-1800 UTC
Station: Boulder
Active Warning: Yes


Space Weather Message Code: WARK04
Serial Number: 1681
Issue Time: 2010 Dec 12 1708 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2010 Dec 12 1710 UTC
Valid To: 2010 Dec 13 0700 UTC
Warning Condition: Onset