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Space Weather Alerts

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Alerts Issued in April 2008


Space Weather Message Code: ALTEF3
Serial Number: 1527
Issue Time: 2008 Apr 30 0514 UTC

ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Threshold Reached: 2008 Apr 30 0500 UTC
Station: GOES12
Observed Yesterday: Yes
Yesterday Maximum 2MeV Flux: 6020 pfu


Space Weather Message Code: ALTEF3
Serial Number: 1526
Issue Time: 2008 Apr 29 0521 UTC

ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Threshold Reached: 2008 Apr 29 0505 UTC
Station: GOES12
Observed Yesterday: Yes
Yesterday Maximum 2MeV Flux: 12700 pfu


Space Weather Message Code: ALTEF3
Serial Number: 1525
Issue Time: 2008 Apr 28 0606 UTC

ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Threshold Reached: 2008 Apr 28 0535 UTC
Station: GOES12
Observed Yesterday: Yes
Yesterday Maximum 2MeV Flux: 15500 pfu


Space Weather Message Code: ALTK04
Serial Number: 1353
Issue Time: 2008 Apr 27 1649 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2008 Apr 27 1649 UTC
Synoptic Period: 1500-1800 UTC
Station: Boulder
Active Warning: No


Space Weather Message Code: ALTEF3
Serial Number: 1524
Issue Time: 2008 Apr 27 0416 UTC

ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Threshold Reached: 2008 Apr 27 0400 UTC
Station: GOES12
Observed Yesterday: Yes
Yesterday Maximum 2MeV Flux: 35900 pfu


Space Weather Message Code: ALTTP4
Serial Number: 314
Issue Time: 2008 Apr 26 1521 UTC

ALERT: Type IV Radio Emission
Begin Time: 2008 Apr 26 1404 UTC


Space Weather Message Code: ALTTP2
Serial Number: 692
Issue Time: 2008 Apr 26 1520 UTC

ALERT: Type II Radio Emission
Begin Time: 2008 Apr 26 1412 UTC
Estimated Velocity: 536 km/s


Space Weather Message Code: ALTEF3
Serial Number: 1523
Issue Time: 2008 Apr 26 0500 UTC

ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Threshold Reached: 2008 Apr 26 0500 UTC
Station: GOES12
Observed Yesterday: Yes
Yesterday Maximum 2MeV Flux: 17800 pfu


Space Weather Message Code: WARK04
Serial Number: 1525
Issue Time: 2008 Apr 25 1401 UTC

CANCEL WARNING: Geomagnetic K-index of 4 expected
Cancel Serial Number: 1524
Original Issue Time: 2008 Apr 23 1609 UTC

Comment: Conditions no longer exist for this warning.


Space Weather Message Code: ALTEF3
Serial Number: 1522
Issue Time: 2008 Apr 25 0500 UTC

ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Threshold Reached: 2008 Apr 25 0500 UTC
Station: GOES12
Observed Yesterday: Yes
Yesterday Maximum 2MeV Flux: 22900 pfu


Space Weather Message Code: WARK04
Serial Number: 1524
Issue Time: 2008 Apr 24 1555 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 1523
Valid From: 2008 Apr 23 1610 UTC
Now Valid Until: 2008 Apr 25 2359 UTC
Warning Condition: Persistence


Space Weather Message Code: WARK05
Serial Number: 635
Issue Time: 2008 Apr 24 0630 UTC

WARNING: Geomagnetic K-index of 5 expected
Valid From: 2008 Apr 24 0630 UTC
Valid To: 2008 Apr 24 1600 UTC
Warning Condition: Persistence
NOAA Scale: G1 - Minor


Space Weather Message Code: ALTEF3
Serial Number: 1521
Issue Time: 2008 Apr 24 0622 UTC

ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Threshold Reached: 2008 Apr 24 0605 UTC
Station: GOES12
Observed Yesterday: Yes
Yesterday Maximum 2MeV Flux: 2890 pfu


Space Weather Message Code: ALTEF3
Serial Number: 1520
Issue Time: 2008 Apr 24 0008 UTC

ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Threshold Reached: 2008 Apr 23 2350 UTC
Station: GOES12
Observed Yesterday: No


Space Weather Message Code: WARK04
Serial Number: 1523
Issue Time: 2008 Apr 23 2348 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 1522
Valid From: 2008 Apr 23 1610 UTC
Now Valid Until: 2008 Apr 24 1600 UTC
Warning Condition: Persistence


Space Weather Message Code: ALTK04
Serial Number: 1352
Issue Time: 2008 Apr 23 1612 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2008 Apr 23 1612 UTC
Synoptic Period: 1500-1800 UTC
Station: Boulder
Active Warning: Yes


Space Weather Message Code: ALTK05
Serial Number: 610
Issue Time: 2008 Apr 23 1612 UTC

ALERT: Geomagnetic K-index of 5
Threshold Reached: 2008 Apr 23 1613 UTC
Synoptic Period: 1500-1800 UTC
Station: Boulder
Active Warning: Yes
NOAA Scale: G1 - Minor


Space Weather Message Code: WARK05
Serial Number: 634
Issue Time: 2008 Apr 23 1611 UTC

WARNING: Geomagnetic K-index of 5 expected
Valid From: 2008 Apr 23 1612 UTC
Valid To: 2008 Apr 23 2359 UTC
Warning Condition: Onset
NOAA Scale: G1 - Minor


Space Weather Message Code: WARK04
Serial Number: 1522
Issue Time: 2008 Apr 23 1609 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2008 Apr 23 1610 UTC
Valid To: 2008 Apr 23 2359 UTC
Warning Condition: Onset


Space Weather Message Code: WARK06
Serial Number: 159
Issue Time: 2008 Apr 23 0817 UTC

WARNING: Geomagnetic K-Index of 6 expected
Valid From: 2008 Apr 23 0815 UTC
Valid To: 2008 Apr 23 1600 UTC
Warning Condition: Onset
NOAA Scale: G2 - Moderate


Space Weather Message Code: ALTK05
Serial Number: 609
Issue Time: 2008 Apr 23 0815 UTC

ALERT: Geomagnetic K-index of 5
Threshold Reached: 2008 Apr 23 0813 UTC
Synoptic Period: 0600-0900 UTC
Station: Boulder
Active Warning: Yes
NOAA Scale: G1 - Minor


Space Weather Message Code: WARK05
Serial Number: 633
Issue Time: 2008 Apr 23 0802 UTC

WARNING: Geomagnetic K-index of 5 expected
Valid From: 2008 Apr 23 0802 UTC
Valid To: 2008 Apr 23 1600 UTC
Warning Condition: Onset
NOAA Scale: G1 - Minor


Space Weather Message Code: ALTK04
Serial Number: 1351
Issue Time: 2008 Apr 23 0801 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2008 Apr 23 0801 UTC
Synoptic Period: 0600-0900 UTC
Station: Boulder
Active Warning: Yes


Space Weather Message Code: WARK04
Serial Number: 1521
Issue Time: 2008 Apr 23 0428 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2008 Apr 23 0430 UTC
Valid To: 2008 Jul 23 1600 UTC
Warning Condition: Onset


Space Weather Message Code: ALTK04
Serial Number: 1350
Issue Time: 2008 Apr 16 0725 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2008 Apr 16 0724 UTC
Synoptic Period: 0600-0900 UTC
Station: Boulder
Active Warning: No


Space Weather Message Code: ALTEF3
Serial Number: 1519
Issue Time: 2008 Apr 16 0506 UTC

ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Threshold Reached: 2008 Apr 16 0500 UTC
Station: GOES12
Observed Yesterday: Yes
Yesterday Maximum 2MeV Flux: 8010 pfu


Space Weather Message Code: ALTEF3
Serial Number: 1518
Issue Time: 2008 Apr 15 0500 UTC

ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Threshold Reached: 2008 Apr 15 0500 UTC
Station: GOES12
Observed Yesterday: Yes
Yesterday Maximum 2MeV Flux: 6240 pfu


Space Weather Message Code: ALTEF3
Serial Number: 1517
Issue Time: 2008 Apr 14 0511 UTC

ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Threshold Reached: 2008 Apr 14 0500 UTC
Station: GOES12
Observed Yesterday: Yes
Yesterday Maximum 2MeV Flux: 9410 pfu


Space Weather Message Code: ALTEF3
Serial Number: 1516
Issue Time: 2008 Apr 13 0500 UTC

ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Threshold Reached: 2008 Apr 13 0500 UTC
Station: GOES12
Observed Yesterday: Yes
Yesterday Maximum 2MeV Flux: 7740 pfu


Space Weather Message Code: ALTK04
Serial Number: 1349
Issue Time: 2008 Apr 12 0521 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2008 Apr 12 0516 UTC
Synoptic Period: 0300-0600 UTC
Station: Boulder
Active Warning: No


Space Weather Message Code: ALTEF3
Serial Number: 1515
Issue Time: 2008 Apr 12 0517 UTC

ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Threshold Reached: 2008 Apr 12 0500 UTC
Station: GOES12
Observed Yesterday: Yes
Yesterday Maximum 2MeV Flux: 14200 pfu


Space Weather Message Code: ALTEF3
Serial Number: 1514
Issue Time: 2008 Apr 11 0501 UTC

ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Threshold Reached: 2008 Apr 11 0500 UTC
Station: GOES12
Observed Yesterday: Yes
Yesterday Maximum 2MeV Flux: 19000 pfu


Space Weather Message Code: ALTEF3
Serial Number: 1513
Issue Time: 2008 Apr 10 0503 UTC

ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Threshold Reached: 2008 Apr 10 0500 UTC
Station: GOES12
Observed Yesterday: Yes
Yesterday Maximum 2MeV Flux: 11700 pfu


Space Weather Message Code: WARK04
Serial Number: 1520
Issue Time: 2008 Apr 09 0652 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2008 Apr 09 0700 UTC
Valid To: 2008 Apr 09 1600 UTC
Warning Condition: Onset


Space Weather Message Code: ALTK04
Serial Number: 1348
Issue Time: 2008 Apr 09 0650 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2008 Apr 09 0649 UTC
Synoptic Period: 0600-0900 UTC
Station: Boulder
Active Warning: No


Space Weather Message Code: ALTEF3
Serial Number: 1512
Issue Time: 2008 Apr 09 0536 UTC

ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Threshold Reached: 2008 Apr 09 0520 UTC
Station: GOES12
Observed Yesterday: Yes
Yesterday Maximum 2MeV Flux: 11900 pfu


Space Weather Message Code: ALTEF3
Serial Number: 1511
Issue Time: 2008 Apr 08 1051 UTC

ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Threshold Reached: 2008 Apr 08 1030 UTC
Station: GOES12
Observed Yesterday: Yes
Yesterday Maximum 2MeV Flux: 10100 pfu


Space Weather Message Code: ALTEF3
Serial Number: 1510
Issue Time: 2008 Apr 07 0949 UTC

ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Threshold Reached: 2008 Apr 07 0930 UTC
Station: GOES12
Observed Yesterday: Yes
Yesterday Maximum 2MeV Flux: 1320 pfu


Space Weather Message Code: ALTEF3
Serial Number: 1509
Issue Time: 2008 Apr 06 1622 UTC

ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Threshold Reached: 2008 Apr 06 1600 UTC
Station: GOES12
Observed Yesterday: Yes
Yesterday Maximum 2MeV Flux: 1170 pfu


Space Weather Message Code: WARK04
Serial Number: 1519
Issue Time: 2008 Apr 06 1457 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 1518
Valid From: 2008 Apr 04 1700 UTC
Now Valid Until: 2008 Apr 08 1600 UTC
Warning Condition: Persistence


Space Weather Message Code: WARK05
Serial Number: 632
Issue Time: 2008 Apr 06 0622 UTC

WARNING: Geomagnetic K-index of 5 expected
Valid From: 2008 Apr 06 0622 UTC
Valid To: 2008 Apr 06 1600 UTC
Warning Condition: Onset
NOAA Scale: G1 - Minor


Space Weather Message Code: ALTK05
Serial Number: 608
Issue Time: 2008 Apr 06 0514 UTC

ALERT: Geomagnetic K-index of 5
Threshold Reached: 2008 Apr 06 0513 UTC
Synoptic Period: 0300-0600 UTC
Station: Boulder
Active Warning: No
NOAA Scale: G1 - Minor


Space Weather Message Code: ALTEF3
Serial Number: 1508
Issue Time: 2008 Apr 05 1716 UTC

ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Threshold Reached: 2008 Apr 05 1700 UTC
Station: GOES12
Observed Yesterday: Yes
Yesterday Maximum 2MeV Flux: 26000 pfu


Space Weather Message Code: ALTK05
Serial Number: 607
Issue Time: 2008 Apr 05 1700 UTC

ALERT: Geomagnetic K-index of 5
Threshold Reached: 2008 Apr 05 1658 UTC
Synoptic Period: 1500-1800 UTC
Station: Boulder
Active Warning: Yes
NOAA Scale: G1 - Minor


Space Weather Message Code: WARK05
Serial Number: 631
Issue Time: 2008 Apr 05 1644 UTC

WARNING: Geomagnetic K-index of 5 expected
Valid From: 2008 Apr 05 1700 UTC
Valid To: 2008 Apr 05 2359 UTC
Warning Condition: Onset
NOAA Scale: G1 - Minor


Space Weather Message Code: WARK04
Serial Number: 1518
Issue Time: 2008 Apr 05 1545 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 1517
Valid From: 2008 Apr 04 1700 UTC
Now Valid Until: 2008 Apr 06 1600 UTC
Warning Condition: Onset


Space Weather Message Code: ALTK04
Serial Number: 1347
Issue Time: 2008 Apr 04 2003 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2008 Apr 04 2000 UTC
Synoptic Period: 1800-2100 UTC
Station: Boulder
Active Warning: Yes


Space Weather Message Code: WARK04
Serial Number: 1517
Issue Time: 2008 Apr 04 1655 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2008 Apr 04 1700 UTC
Valid To: 2008 Apr 05 1600 UTC
Warning Condition: Onset


Space Weather Message Code: ALTEF3
Serial Number: 1507
Issue Time: 2008 Apr 04 0502 UTC

ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Threshold Reached: 2008 Apr 04 0500 UTC
Station: GOES12
Observed Yesterday: Yes
Yesterday Maximum 2MeV Flux: 33800 pfu


Space Weather Message Code: ALTEF3
Serial Number: 1506
Issue Time: 2008 Apr 03 0502 UTC

ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Threshold Reached: 2008 Apr 03 0500 UTC
Station: GOES12
Observed Yesterday: Yes
Yesterday Maximum 2MeV Flux: 29100 pfu


Space Weather Message Code: ALTEF3
Serial Number: 1505
Issue Time: 2008 Apr 02 0500 UTC

ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Threshold Reached: 2008 Apr 02 0500 UTC
Station: GOES12
Observed Yesterday: Yes
Yesterday Maximum 2MeV Flux: 22900 pfu


Space Weather Message Code: ALTEF3
Serial Number: 1504
Issue Time: 2008 Apr 01 0503 UTC

ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Threshold Reached: 2008 Apr 01 0500 UTC
Station: GOES12
Observed Yesterday: Yes
Yesterday Maximum 2MeV Flux: 35600 pfu