NOAA / Space Weather Prediction Center

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Space Weather Alerts

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Alerts Issued in September 2008


Space Weather Message Code: WATA20
Serial Number: 452
Issue Time: 2008 Sep 28 2121 UTC

WATCH: Geomagnetic A-index of 20 or greater predicted
Valid for UTC Day: 2008 Oct 01


Space Weather Message Code: ALTK04
Serial Number: 1382
Issue Time: 2008 Sep 18 1135 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2008 Sep 18 1134 UTC
Synoptic Period: 0900-1200 UTC
Station: Boulder
Active Warning: No


Space Weather Message Code: ALTEF3
Serial Number: 1592
Issue Time: 2008 Sep 17 0525 UTC

ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Threshold Reached: 2008 Sep 17 0510 UTC
Station: GOES-12
Observed Yesterday: Yes
Yesterday Maximum 2MeV Flux: 2550 pfu


Space Weather Message Code: ALTEF3
Serial Number: 1592
Issue Time: 2008 Sep 17 0525 UTC

ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Threshold Reached: 2008 Sep 17 0510 UTC
Station: GOES-12
Observed Yesterday: Yes
Yesterday Maximum 2MeV Flux: 2550 pfu


Space Weather Message Code: ALTEF3
Serial Number: 1591
Issue Time: 2008 Sep 16 1324 UTC

ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Threshold Reached: 2008 Sep 16 1315 UTC
Station: GOES12
Observed Yesterday: No


Space Weather Message Code: ALTK04
Serial Number: 1381
Issue Time: 2008 Sep 16 0526 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2008 Sep 16 0522 UTC
Synoptic Period: 0300-0600 UTC
Station: Boulder
Active Warning: No


Space Weather Message Code: WARK04
Serial Number: 1558
Issue Time: 2008 Sep 15 1700 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 1557
Valid From: 2008 Sep 14 2215 UTC
Now Valid Until: 2008 Sep 15 2359 UTC
Warning Condition: Onset


Space Weather Message Code: ALTK04
Serial Number: 1380
Issue Time: 2008 Sep 14 2319 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2008 Sep 14 2318 UTC
Synoptic Period: 2100-2400 UTC
Station: Boulder
Active Warning: Yes


Space Weather Message Code: WARK04
Serial Number: 1557
Issue Time: 2008 Sep 14 2211 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2008 Sep 14 2215 UTC
Valid To: 2008 Sep 15 1700 UTC
Warning Condition: Onset


Space Weather Message Code: ALTEF3
Serial Number: 1590
Issue Time: 2008 Sep 14 1045 UTC

ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Threshold Reached: 2008 Sep 14 1015 UTC
Station: GOES12
Observed Yesterday: Yes
Yesterday Maximum 2MeV Flux: 3760 pfu


Space Weather Message Code: ALTEF3
Serial Number: 1589
Issue Time: 2008 Sep 13 0501 UTC

ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Threshold Reached: 2008 Sep 13 0500 UTC
Station: GOES12
Observed Yesterday: Yes
Yesterday Maximum 2MeV Flux: 2730 pfu


Space Weather Message Code: ALTEF3
Serial Number: 1588
Issue Time: 2008 Sep 12 0502 UTC

ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Threshold Reached: 2008 Sep 12 0500 UTC
Station: GOES12
Observed Yesterday: Yes
Yesterday Maximum 2MeV Flux: 3550 pfu


Space Weather Message Code: ALTEF3
Serial Number: 1587
Issue Time: 2008 Sep 11 0501 UTC

ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Threshold Reached: 2008 Sep 11 0500 UTC
Station: GOES12
Observed Yesterday: Yes
Yesterday Maximum 2MeV Flux: 3480 pfu


Space Weather Message Code: ALTEF3
Serial Number: 1586
Issue Time: 2008 Sep 10 0505 UTC

ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Threshold Reached: 2008 Sep 10 0500 UTC
Station: GOES12
Observed Yesterday: Yes
Yesterday Maximum 2MeV Flux: 8520 pfu


Space Weather Message Code: ALTEF3
Serial Number: 1585
Issue Time: 2008 Sep 09 0710 UTC

ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Threshold Reached: 2008 Sep 09 0520 UTC
Station: GOES12
Observed Yesterday: Yes
Yesterday Maximum 2MeV Flux: 4820 pfu


Space Weather Message Code: ALTEF3
Serial Number: 1584
Issue Time: 2008 Sep 08 1137 UTC

ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Threshold Reached: 2008 Sep 08 1120 UTC
Station: GOES12
Observed Yesterday: Yes
Yesterday Maximum 2MeV Flux: 1450 pfu


Space Weather Message Code: ALTK04
Serial Number: 1379
Issue Time: 2008 Sep 08 0350 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2008 Sep 08 0345 UTC
Synoptic Period: 0300-0600 UTC
Station: Boulder
Active Warning: No


Space Weather Message Code: ALTEF3
Serial Number: 1583
Issue Time: 2008 Sep 07 1332 UTC

ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Threshold Reached: 2008 Sep 07 1310 UTC
Station: GOES12
Observed Yesterday: Yes
Yesterday Maximum 2MeV Flux: 3390 pfu


Space Weather Message Code: ALTK04
Serial Number: 1378
Issue Time: 2008 Sep 06 1454 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2008 Sep 06 1452 UTC
Synoptic Period: 1200-1500 UTC
Station: Boulder
Active Warning: No


Space Weather Message Code: ALTEF3
Serial Number: 1582
Issue Time: 2008 Sep 06 0716 UTC

ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Threshold Reached: 2008 Sep 06 0655 UTC
Station: GOES12
Observed Yesterday: Yes
Yesterday Maximum 2MeV Flux: 3500 pfu


Space Weather Message Code: ALTEF3
Serial Number: 1581
Issue Time: 2008 Sep 05 0907 UTC

ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Threshold Reached: 2008 Sep 05 0845 UTC
Station: GOES12
Observed Yesterday: Yes
Yesterday Maximum 2MeV Flux: 1260 pfu


Space Weather Message Code: ALTEF3
Serial Number: 1580
Issue Time: 2008 Sep 04 1711 UTC

ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Threshold Reached: 2008 Sep 04 1655 UTC
Station: GOES12
Observed Yesterday: No


Space Weather Message Code: WARK04
Serial Number: 1556
Issue Time: 2008 Sep 04 1555 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 1555
Valid From: 2008 Sep 04 0140 UTC
Now Valid Until: 2008 Sep 04 2359 UTC
Warning Condition: Onset


Space Weather Message Code: ALTK06
Serial Number: 260
Issue Time: 2008 Sep 04 0438 UTC

ALERT: Geomagnetic K-index of 6
Threshold Reached: 2008 Sep 04 0435 UTC
Synoptic Period: 0300-0600 UTC
Station: Boulder
Active Warning: No
NOAA Scale: G2 - Moderate


Space Weather Message Code: ALTK05
Serial Number: 617
Issue Time: 2008 Sep 04 0428 UTC

ALERT: Geomagnetic K-index of 5
Threshold Reached: 2008 Sep 04 0425 UTC
Synoptic Period: 0300-0600 UTC
Station: Boulder
Active Warning: Yes
NOAA Scale: G1 - Minor


Space Weather Message Code: WARK05
Serial Number: 640
Issue Time: 2008 Sep 04 0349 UTC

WARNING: Geomagnetic K-index of 5 expected
Valid From: 2008 Sep 04 0350 UTC
Valid To: 2008 Sep 04 1600 UTC
Warning Condition: Onset
NOAA Scale: G1 - Minor


Space Weather Message Code: ALTK05
Serial Number: 616
Issue Time: 2008 Sep 04 0207 UTC

ALERT: Geomagnetic K-index of 5
Threshold Reached: 2008 Sep 04 0205 UTC
Synoptic Period: 0000-0300 UTC
Station: Boulder
Active Warning: Yes
NOAA Scale: G1 - Minor


Space Weather Message Code: WARK05
Serial Number: 639
Issue Time: 2008 Sep 04 0159 UTC

WARNING: Geomagnetic K-index of 5 expected
Valid From: 2008 Sep 04 0200 UTC
Valid To: 2008 Sep 04 0300 UTC
Warning Condition: Onset
NOAA Scale: G1 - Minor


Space Weather Message Code: ALTK04
Serial Number: 1377
Issue Time: 2008 Sep 04 0147 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2008 Sep 04 0145 UTC
Synoptic Period: 0000-0300 UTC
Station: Boulder
Active Warning: Yes


Space Weather Message Code: WARK04
Serial Number: 1555
Issue Time: 2008 Sep 04 0139 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2008 Sep 04 0140 UTC
Valid To: 2008 Sep 04 1600 UTC
Warning Condition: Onset