NOAA / Space Weather Prediction Center

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Space Weather Alerts

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Alerts Issued in May 2010


Space Weather Message Code: WARK04
Serial Number: 1632
Issue Time: 2010 May 31 2247 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2010 May 31 2300 UTC
Valid To: 2010 Jun 01 1600 UTC
Warning Condition: Onset


Space Weather Message Code: ALTEF3
Serial Number: 1675
Issue Time: 2010 May 31 1033 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 1674
Begin Time: 2010 May 30 1015 UTC
Yesterday Maximum 2MeV Flux: 2810 pfu


Space Weather Message Code: ALTK04
Serial Number: 1454
Issue Time: 2010 May 31 0547 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2010 May 31 0545 UTC
Synoptic Period: 0300-0600 UTC
Station: Boulder
Active Warning: Yes


Space Weather Message Code: WARK04
Serial Number: 1631
Issue Time: 2010 May 30 1631 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2010 May 30 1630 UTC
Valid To: 2010 May 31 1600 UTC
Warning Condition: Onset


Space Weather Message Code: ALTEF3
Serial Number: 1674
Issue Time: 2010 May 30 1034 UTC

ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Threshold Reached: 2010 May 30 1015 UTC
Station: GOES13


Space Weather Message Code: ALTK04
Serial Number: 1453
Issue Time: 2010 May 30 0630 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2010 May 30 0629 UTC
Synoptic Period: 0600-0900 UTC
Station: Boulder
Active Warning: Yes


Space Weather Message Code: WARK04
Serial Number: 1630
Issue Time: 2010 May 30 0624 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2010 May 30 0625 UTC
Valid To: 2010 May 30 1600 UTC
Warning Condition: Onset


Space Weather Message Code: WARK04
Serial Number: 1629
Issue Time: 2010 May 29 1545 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 1628
Valid From: 2010 May 29 0330 UTC
Now Valid Until: 2010 May 29 1900 UTC
Warning Condition: Persistence


Space Weather Message Code: WARK06
Serial Number: 167
Issue Time: 2010 May 29 1142 UTC

EXTENDED WARNING: Geomagnetic K-Index of 6 expected
Extension to Serial Number: 166
Valid From: 2010 May 29 0808 UTC
Now Valid Until: 2010 May 29 1600 UTC
Warning Condition: Onset


Space Weather Message Code: WARK06
Serial Number: 166
Issue Time: 2010 May 29 0807 UTC

WARNING: Geomagnetic K-Index of 6 expected
Valid From: 2010 May 29 0808 UTC
Valid To: 2010 May 29 1200 UTC
Warning Condition: Onset
NOAA Scale: G2 - Moderate


Space Weather Message Code: ALTK05
Serial Number: 640
Issue Time: 2010 May 29 0757 UTC

ALERT: Geomagnetic K-index of 5
Threshold Reached: 2010 May 29 0754 UTC
Synoptic Period: 0600-0900 UTC
Station: Boulder
Active Warning: Yes
NOAA Scale: G1 - Minor


Space Weather Message Code: WARK05
Serial Number: 663
Issue Time: 2010 May 29 0751 UTC

WARNING: Geomagnetic K-index of 5 expected
Valid From: 2010 May 29 0753 UTC
Valid To: 2010 May 29 1600 UTC
Warning Condition: Onset
NOAA Scale: G1 - Minor


Space Weather Message Code: ALTK04
Serial Number: 1452
Issue Time: 2010 May 29 0748 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2010 May 29 0747 UTC
Synoptic Period: 0600-0900 UTC
Station: Boulder
Active Warning: Yes


Space Weather Message Code: WARK04
Serial Number: 1628
Issue Time: 2010 May 29 0321 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2010 May 29 0330 UTC
Valid To: 2010 May 29 1600 UTC
Warning Condition: Onset


Space Weather Message Code: SUMSUD
Serial Number: 108
Issue Time: 2010 May 28 0308 UTC

SUMMARY: Geomagnetic Sudden Impulse
Observed: 2010 May 28 0259 UTC
Deviation: 33 nT
Station: Boulder


Space Weather Message Code: WARK04
Serial Number: 1627
Issue Time: 2010 May 28 0305 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2010 May 28 0310 UTC
Valid To: 2010 May 28 1600 UTC
Warning Condition: Onset


Space Weather Message Code: WARSUD
Serial Number: 73
Issue Time: 2010 May 28 0220 UTC

WARNING: Geomagnetic Sudden Impulse expected
Valid From: 2010 May 28 0245 UTC
Valid To: 2010 May 28 0345 UTC
IP Shock Passage Observed: 2010 May 28 0203 UTC


Space Weather Message Code: WATA20
Serial Number: 458
Issue Time: 2010 May 27 2109 UTC

WATCH: Geomagnetic A-index of 20 or greater predicted
Valid for UTC Day: 2010 May 30


Space Weather Message Code: WATA20
Serial Number: 457
Issue Time: 2010 May 25 2126 UTC

WATCH: Geomagnetic A-index of 20 or greater predicted
Valid for UTC Day: 2010 May 28


Space Weather Message Code: ALTK04
Serial Number: 1451
Issue Time: 2010 May 20 0111 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2010 May 20 0111 UTC
Synoptic Period: 0000-0300 UTC
Station: Boulder
Active Warning: Yes


Space Weather Message Code: WARK04
Serial Number: 1626
Issue Time: 2010 May 20 0106 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2010 May 20 0106 UTC
Valid To: 2010 May 20 1600 UTC
Warning Condition: Onset


Space Weather Message Code: WARK04
Serial Number: 1625
Issue Time: 2010 May 19 1350 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2010 May 19 1351 UTC
Valid To: 2010 May 19 2359 UTC
Warning Condition: Onset


Space Weather Message Code: ALTEF3
Serial Number: 1673
Issue Time: 2010 May 17 1204 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 1672
Begin Time: 2010 May 03 1235 UTC
Yesterday Maximum 2MeV Flux: 3837 pfu


Space Weather Message Code: ALTEF3
Serial Number: 1672
Issue Time: 2010 May 16 0508 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 1671
Begin Time: 2010 May 03 1235 UTC
Yesterday Maximum 2MeV Flux: 2741 pfu


Space Weather Message Code: ALTEF3
Serial Number: 1671
Issue Time: 2010 May 15 0505 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 1670
Begin Time: 2010 May 03 1235 UTC
Yesterday Maximum 2MeV Flux: 4871 pfu


Space Weather Message Code: ALTEF3
Serial Number: 1670
Issue Time: 2010 May 14 0507 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 1669
Begin Time: 2010 May 03 1235 UTC
Yesterday Maximum 2MeV Flux: 3639 pfu


Space Weather Message Code: ALTEF3
Serial Number: 1669
Issue Time: 2010 May 13 0558 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 1668
Begin Time: 2010 May 03 1235 UTC
Yesterday Maximum 2MeV Flux: 3544 pfu


Space Weather Message Code: ALTEF3
Serial Number: 1668
Issue Time: 2010 May 12 1109 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 1667
Begin Time: 2010 May 03 1235 UTC
Yesterday Maximum 2MeV Flux: 6536 pfu

Comment: 5/12/10 - 2MeV exceeds 1000pfu at 1045 UTC


Space Weather Message Code: ALTEF3
Serial Number: 1667
Issue Time: 2010 May 11 0851 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 1666
Begin Time: 2010 May 03 1235 UTC
Yesterday Maximum 2MeV Flux: 14840 pfu


Space Weather Message Code: ALTEF3
Serial Number: 1666
Issue Time: 2010 May 10 0510 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 1665
Begin Time: 2010 May 03 1235 UTC
Yesterday Maximum 2MeV Flux: 10947 pfu


Space Weather Message Code: ALTEF3
Serial Number: 1665
Issue Time: 2010 May 09 0512 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 1664
Begin Time: 2010 May 03 1235 UTC
Yesterday Maximum 2MeV Flux: 10579 pfu


Space Weather Message Code: ALTEF3
Serial Number: 1664
Issue Time: 2010 May 08 0710 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 1663
Begin Time: 2010 May 03 1235 UTC
Yesterday Maximum 2MeV Flux: 20103 pfu


Space Weather Message Code: ALTEF3
Serial Number: 1663
Issue Time: 2010 May 07 0643 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 1662
Begin Time: 2010 May 03 1235 UTC
Yesterday Maximum 2MeV Flux: 28796 pfu


Space Weather Message Code: ALTK04
Serial Number: 1450
Issue Time: 2010 May 06 0818 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2010 May 06 0818 UTC
Synoptic Period: 0600-0900 UTC
Station: Boulder
Active Warning: Yes


Space Weather Message Code: WARK04
Serial Number: 1624
Issue Time: 2010 May 06 0810 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2010 May 06 0815 UTC
Valid To: 2010 May 06 1200 UTC
Warning Condition: Onset


Space Weather Message Code: ALTEF3
Serial Number: 1662
Issue Time: 2010 May 06 0519 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 1661
Begin Time: 2010 May 03 1235 UTC
Yesterday Maximum 2MeV Flux: 19875 pfu


Space Weather Message Code: ALTEF3
Serial Number: 1661
Issue Time: 2010 May 05 0522 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 1660
Begin Time: 2010 May 03 1235 UTC
Yesterday Maximum 2MeV Flux: 27025 pfu


Space Weather Message Code: ALTEF3
Serial Number: 1660
Issue Time: 2010 May 04 0524 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 1659
Begin Time: 2010 May 03 1235 UTC
Yesterday Maximum 2MeV Flux: 7538 pfu


Space Weather Message Code: WARK04
Serial Number: 1623
Issue Time: 2010 May 03 1600 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2010 May 03 1600 UTC
Valid To: 2010 May 04 1600 UTC
Warning Condition: Persistence


Space Weather Message Code: ALTEF3
Serial Number: 1659
Issue Time: 2010 May 03 1251 UTC

ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Threshold Reached: 2010 May 03 1235 UTC
Station: GOES13


Space Weather Message Code: WATA20
Serial Number: 455
Issue Time: 2010 May 02 1930 UTC

WATCH: Geomagnetic A-index of 20 or greater predicted
Valid for UTC Day: 05/03/10


Space Weather Message Code: WATA20
Serial Number: 456
Issue Time: 2010 May 02 1930 UTC

WATCH: Geomagnetic A-index of 20 or greater predicted
Valid for UTC Day: 05/04/10


Space Weather Message Code: ALTK05
Serial Number: 639
Issue Time: 2010 May 02 1601 UTC

ALERT: Geomagnetic K-index of 5
Threshold Reached: 2010 May 02 1555 UTC
Synoptic Period: 1500-1800 UTC
Station: Boulder
Active Warning: Yes
NOAA Scale: G1 - Minor


Space Weather Message Code: WARK05
Serial Number: 662
Issue Time: 2010 May 02 1548 UTC

EXTENDED WARNING: Geomagnetic K-index of 5 expected
Extension to Serial Number: 661
Valid From: 2010 May 02 1040 UTC
Now Valid Until: 2010 May 03 1600 UTC
Warning Condition: Onset


Space Weather Message Code: WARK05
Serial Number: 661
Issue Time: 2010 May 02 1545 UTC

EXTENDED WARNING: Geomagnetic K-index of 5 expected
Extension to Serial Number: 660
Valid From: 2010 May 02 1040 UTC
Now Valid Until: 2010 May 02 1600 UTC
Warning Condition: Onset


Space Weather Message Code: ALTK04
Serial Number: 1449
Issue Time: 2010 May 02 1159 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2010 May 02 1158 UTC
Synoptic Period: 0900-1200 UTC
Station: Boulder
Active Warning: Yes


Space Weather Message Code: WARK05
Serial Number: 660
Issue Time: 2010 May 02 1038 UTC

WARNING: Geomagnetic K-index of 5 expected
Valid From: 2010 May 02 1040 UTC
Valid To: 2010 May 02 1600 UTC
Warning Condition: Onset
NOAA Scale: G1 - Minor