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Space Weather Alerts

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Alerts Issued in May 2011


Space Weather Message Code: WARK04
Serial Number: 1743
Issue Time: 2011 May 31 1354 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 1742
Valid From: 2011 May 31 0747 UTC
Now Valid Until: 2011 Jun 01 1600 UTC
Warning Condition: Persistence


Space Weather Message Code: ALTEF3
Serial Number: 1801
Issue Time: 2011 May 31 1018 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 1800
Begin Time: 2011 May 29 1240 UTC
Yesterday Maximum 2MeV Flux: 16576 pfu


Space Weather Message Code: ALTK04
Serial Number: 1515
Issue Time: 2011 May 31 0810 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2011 May 31 0809 UTC
Synoptic Period: 0600-0900 UTC
Station: Boulder
Active Warning: Yes


Space Weather Message Code: WARK04
Serial Number: 1742
Issue Time: 2011 May 31 0748 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2011 May 31 0747 UTC
Valid To: 2011 May 31 1600 UTC
Warning Condition: Onset


Space Weather Message Code: ALTTP2
Serial Number: 731
Issue Time: 2011 May 30 1127 UTC

ALERT: Type II Radio Emission
Begin Time: 2011 May 30 1110 UTC
Estimated Velocity: 1697 km/s


Space Weather Message Code: ALTEF3
Serial Number: 1800
Issue Time: 2011 May 30 0527 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 1799
Begin Time: 2011 May 29 1240 UTC
Yesterday Maximum 2MeV Flux: 7740 pfu


Space Weather Message Code: ALTTP2
Serial Number: 730
Issue Time: 2011 May 30 0343 UTC

ALERT: Type II Radio Emission
Begin Time: 2011 May 29 2108 UTC
Estimated Velocity: 2963 km/s

Comment: Velocity data estimate is questionable.


Space Weather Message Code: ALTTP4
Serial Number: 332
Issue Time: 2011 May 30 0324 UTC

ALERT: Type IV Radio Emission
Begin Time: 2011 May 29 2112 UTC


Space Weather Message Code: SUM10R
Serial Number: 491
Issue Time: 2011 May 30 0215 UTC

SUMMARY: 10cm Radio Burst
Begin Time: 2011 May 29 2108 UTC
Maximum Time: 2011 May 29 2111 UTC
End Time: 2011 May 29 2117 UTC
Duration: 9 minutes
Peak Flux: 520 sfu
Latest Penticton Noon Flux: 111 sfu

Comment: Palahua final report, closest to LAN.


Space Weather Message Code: WARK05
Serial Number: 701
Issue Time: 2011 May 29 2312 UTC

EXTENDED WARNING: Geomagnetic K-index of 5 expected
Extension to Serial Number: 700
Valid From: 2011 May 29 1739 UTC
Now Valid Until: 2011 May 30 1600 UTC
Warning Condition: Persistence


Space Weather Message Code: ALTK05
Serial Number: 657
Issue Time: 2011 May 29 1746 UTC

ALERT: Geomagnetic K-index of 5
Threshold Reached: 2011 May 29 1745 UTC
Synoptic Period: 1500-1800 UTC
Station: Boulder
Active Warning: Yes
NOAA Scale: G1 - Minor


Space Weather Message Code: WARK05
Serial Number: 700
Issue Time: 2011 May 29 1741 UTC

WARNING: Geomagnetic K-index of 5 expected
Valid From: 2011 May 29 1739 UTC
Valid To: 2011 May 29 2359 UTC
Warning Condition: Onset
NOAA Scale: G1 - Minor


Space Weather Message Code: WARK04
Serial Number: 1741
Issue Time: 2011 May 29 1545 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 1740
Valid From: 2011 May 28 2205 UTC
Now Valid Until: 2011 May 30 1600 UTC
Warning Condition: Persistence


Space Weather Message Code: ALTEF3
Serial Number: 1799
Issue Time: 2011 May 29 1301 UTC

ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Threshold Reached: 2011 May 29 1240 UTC
Station: GOES13


Space Weather Message Code: ALTTP2
Serial Number: 729
Issue Time: 2011 May 29 1058 UTC

ALERT: Type II Radio Emission
Begin Time: 2011 May 29 1025 UTC
Estimated Velocity: 1059 km/s


Space Weather Message Code: WARK06
Serial Number: 174
Issue Time: 2011 May 29 0515 UTC

WARNING: Geomagnetic K-Index of 6 expected
Valid From: 2011 May 29 0515 UTC
Valid To: 2011 May 29 1600 UTC
Warning Condition: Persistence
NOAA Scale: G2 - Moderate


Space Weather Message Code: ALTK04
Serial Number: 1514
Issue Time: 2011 May 28 2241 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2011 May 28 2240 UTC
Synoptic Period: 2100-2400 UTC
Station: Boulder
Active Warning: Yes


Space Weather Message Code: WARK04
Serial Number: 1740
Issue Time: 2011 May 28 2204 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2011 May 28 2205 UTC
Valid To: 2011 May 29 1600 UTC
Warning Condition: Persistence


Space Weather Message Code: WATA20
Serial Number: 469
Issue Time: 2011 May 28 1842 UTC

WATCH: Geomagnetic A-index of 20 or greater predicted
NOAA Scale: Periods reaching the G1 (Minor) Level Likely
Valid for UTC Day: 2011 May 29


Space Weather Message Code: WARK05
Serial Number: 699
Issue Time: 2011 May 28 1547 UTC

EXTENDED WARNING: Geomagnetic K-index of 5 expected
Extension to Serial Number: 698
Valid From: 2011 May 28 0620 UTC
Now Valid Until: 2011 May 29 1600 UTC
Warning Condition: Persistence


Space Weather Message Code: WARK06
Serial Number: 173
Issue Time: 2011 May 28 1154 UTC

EXTENDED WARNING: Geomagnetic K-Index of 6 expected
Extension to Serial Number: 172
Valid From: 2011 May 28 0845 UTC
Now Valid Until: 2011 May 28 1600 UTC
Warning Condition: Onset


Space Weather Message Code: ALTK06
Serial Number: 266
Issue Time: 2011 May 28 1000 UTC

ALERT: Geomagnetic K-index of 6
Threshold Reached: 2011 May 28 0959 UTC
Synoptic Period: 0900-1200 UTC
Station: Boulder
Active Warning: Yes
NOAA Scale: G2 - Moderate


Space Weather Message Code: ALTK06
Serial Number: 265
Issue Time: 2011 May 28 0850 UTC

ALERT: Geomagnetic K-index of 6
Threshold Reached: 2011 May 28 0849 UTC
Synoptic Period: 0600-0900 UTC
Station: Boulder
Active Warning: Yes
NOAA Scale: G2 - Moderate


Space Weather Message Code: WARK06
Serial Number: 172
Issue Time: 2011 May 28 0845 UTC

WARNING: Geomagnetic K-Index of 6 expected
Valid From: 2011 May 28 0845 UTC
Valid To: 2011 May 28 1200 UTC
Warning Condition: Onset
NOAA Scale: G2 - Moderate


Space Weather Message Code: ALTK05
Serial Number: 656
Issue Time: 2011 May 28 0841 UTC

ALERT: Geomagnetic K-index of 5
Threshold Reached: 2011 May 28 0840 UTC
Synoptic Period: 0600-0900 UTC
Station: Boulder
Active Warning: Yes
NOAA Scale: G1 - Minor


Space Weather Message Code: WARK05
Serial Number: 698
Issue Time: 2011 May 28 0616 UTC

WARNING: Geomagnetic K-index of 5 expected
Valid From: 2011 May 28 0620 UTC
Valid To: 2011 May 28 1600 UTC
Warning Condition: Onset
NOAA Scale: G1 - Minor


Space Weather Message Code: ALTK04
Serial Number: 1513
Issue Time: 2011 May 28 0135 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2011 May 28 0134 UTC
Synoptic Period: 0000-0300 UTC
Station: Boulder
Active Warning: Yes


Space Weather Message Code: WARK04
Serial Number: 1739
Issue Time: 2011 May 27 1740 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2011 May 27 1740 UTC
Valid To: 2011 May 28 1600 UTC
Warning Condition: Onset


Space Weather Message Code: ALTK04
Serial Number: 1512
Issue Time: 2011 May 26 1656 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2011 May 26 1654 UTC
Synoptic Period: 1500-1800 UTC
Station: Boulder
Active Warning: Yes


Space Weather Message Code: WARK04
Serial Number: 1738
Issue Time: 2011 May 26 1623 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2011 May 26 1630 UTC
Valid To: 2011 May 27 0000 UTC
Warning Condition: Onset


Space Weather Message Code: SUMSUD
Serial Number: 119
Issue Time: 2011 May 20 0430 UTC

SUMMARY: Geomagnetic Sudden Impulse
Observed: 2011 May 20 0415 UTC
Deviation: 3 nT
Station: Boulder


Space Weather Message Code: WARK04
Serial Number: 1737
Issue Time: 2011 May 17 0744 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2011 May 17 0750 UTC
Valid To: 2011 May 17 1600 UTC
Warning Condition: Onset


Space Weather Message Code: ALTK04
Serial Number: 1511
Issue Time: 2011 May 15 1704 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2011 May 17 1703 UTC
Synoptic Period: 0900-1200 UTC
Station: Boulder
Active Warning: Yes


Space Weather Message Code: WARK04
Serial Number: 1736
Issue Time: 2011 May 15 1502 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 1735
Valid From: 2011 May 15 0005 UTC
Now Valid Until: 2011 May 16 1600 UTC
Warning Condition: Persistence


Space Weather Message Code: WARK04
Serial Number: 1735
Issue Time: 2011 May 15 0003 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2010 May 15 0005 UTC
Valid To: 2010 May 15 1600 UTC
Warning Condition: Onset


Space Weather Message Code: WARK04
Serial Number: 1734
Issue Time: 2011 May 11 0415 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2011 May 11 0420 UTC
Valid To: 2011 May 11 1200 UTC
Warning Condition: Onset


Space Weather Message Code: ALTTP2
Serial Number: 728
Issue Time: 2011 May 11 0350 UTC

ALERT: Type II Radio Emission
Begin Time: 2011 May 11 0227 UTC
Estimated Velocity: 632 km/s


Space Weather Message Code: ALTK04
Serial Number: 1510
Issue Time: 2011 May 10 1707 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2011 May 10 1705 UTC
Synoptic Period: 0900-1200 UTC
Station: Boulder
Active Warning: Yes


Space Weather Message Code: ALTEF3
Serial Number: 1798
Issue Time: 2011 May 10 1527 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 1797
Begin Time: 2011 May 01 0035 UTC
Yesterday Maximum 2MeV Flux: 4953 pfu


Space Weather Message Code: WARK04
Serial Number: 1733
Issue Time: 2011 May 10 1418 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2011 May 10 1420 UTC
Valid To: 2011 May 11 0000 UTC
Warning Condition: Onset


Space Weather Message Code: ALTEF3
Serial Number: 1797
Issue Time: 2011 May 09 0833 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 1796
Begin Time: 2011 May 01 0035 UTC
Yesterday Maximum 2MeV Flux: 4333 pfu


Space Weather Message Code: ALTEF3
Serial Number: 1796
Issue Time: 2011 May 08 0504 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 1795
Begin Time: 2011 May 01 0035 UTC
Yesterday Maximum 2MeV Flux: 12480 pfu


Space Weather Message Code: ALTEF3
Serial Number: 1795
Issue Time: 2011 May 07 0503 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 1794
Begin Time: 2011 May 01 0035 UTC
Yesterday Maximum 2MeV Flux: 12168 pfu


Space Weather Message Code: ALTEF3
Serial Number: 1794
Issue Time: 2011 May 06 0504 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 1793
Begin Time: 2011 May 01 0035 UTC
Yesterday Maximum 2MeV Flux: 13540 pfu


Space Weather Message Code: ALTEF3
Serial Number: 1793
Issue Time: 2011 May 05 0500 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 1792
Begin Time: 2011 May 01 0035 UTC
Yesterday Maximum 2MeV Flux: 10886 pfu


Space Weather Message Code: ALTEF3
Serial Number: 1792
Issue Time: 2011 May 04 0511 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 1791
Begin Time: 2011 May 01 0035 UTC
Yesterday Maximum 2MeV Flux: 12146 pfu


Space Weather Message Code: WARK04
Serial Number: 1732
Issue Time: 2011 May 03 0555 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 1731
Valid From: 2011 May 02 2300 UTC
Now Valid Until: 2011 May 03 1500 UTC
Warning Condition: Persistence


Space Weather Message Code: ALTEF3
Serial Number: 1791
Issue Time: 2011 May 03 0506 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 1790
Begin Time: 2011 May 01 0035 UTC
Yesterday Maximum 2MeV Flux: 8155 pfu


Space Weather Message Code: ALTK04
Serial Number: 1509
Issue Time: 2011 May 03 0122 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2011 May 03 0121 UTC
Synoptic Period: 1800-2100 UTC
Station: Boulder
Active Warning: Yes


Space Weather Message Code: WARK04
Serial Number: 1731
Issue Time: 2011 May 02 2246 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2011 May 02 2300 UTC
Valid To: 2011 May 03 0600 UTC
Warning Condition: Onset


Space Weather Message Code: WARK05
Serial Number: 697
Issue Time: 2011 May 02 0733 UTC

EXTENDED WARNING: Geomagnetic K-index of 5 expected
Extension to Serial Number: 696
Valid From: 2011 May 02 0414 UTC
Now Valid Until: 2011 May 02 1200 UTC
Warning Condition: Onset


Space Weather Message Code: ALTEF3
Serial Number: 1790
Issue Time: 2011 May 02 0602 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 1789
Begin Time: 2011 May 01 0035 UTC
Yesterday Maximum 2MeV Flux: 8143 pfu


Space Weather Message Code: WARK04
Serial Number: 1730
Issue Time: 2011 May 02 0507 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 1729
Valid From: 2011 Apr 29 1950 UTC
Now Valid Until: 2011 May 02 1500 UTC
Warning Condition: Persistence


Space Weather Message Code: WARK05
Serial Number: 696
Issue Time: 2011 May 02 0417 UTC

EXTENDED WARNING: Geomagnetic K-index of 5 expected
Extension to Serial Number: 695
Valid From: 2011 May 02 0414 UTC
Now Valid Until: 2011 May 02 0800 UTC
Warning Condition: Onset


Space Weather Message Code: WARK05
Serial Number: 695
Issue Time: 2011 May 02 0415 UTC

WARNING: Geomagnetic K-index of 5 expected
Valid From: 2011 May 02 0414 UTC
Valid To: 2011 May 02 0415 UTC
Warning Condition: Onset
NOAA Scale: G1 - Minor


Space Weather Message Code: WARK04
Serial Number: 1729
Issue Time: 2011 May 01 2352 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 1728
Valid From: 2011 Apr 29 1950 UTC
Now Valid Until: 2011 May 02 0600 UTC
Warning Condition: Persistence


Space Weather Message Code: WARK04
Serial Number: 1728
Issue Time: 2011 May 01 1219 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 1726
Valid From: 2011 Apr 29 1950 UTC
Now Valid Until: 2011 May 02 0000 UTC
Warning Condition: Persistence


Space Weather Message Code: WARK05
Serial Number: 694
Issue Time: 2011 May 01 1218 UTC

WARNING: Geomagnetic K-index of 5 expected
Valid From: 2011 May 01 1220 UTC
Valid To: 2011 May 01 1800 UTC
Warning Condition: Onset
NOAA Scale: G1 - Minor


Space Weather Message Code: ALTEF3
Serial Number: 1789
Issue Time: 2011 May 01 0948 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 1788
Begin Time: 2011 May 01 0035 UTC
Yesterday Maximum 2MeV Flux: 1520 pfu


Space Weather Message Code: WARK04
Serial Number: 1726
Issue Time: 2011 May 01 0555 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 1725
Valid From: 2011 Apr 29 1950 UTC
Now Valid Until: 2011 May 01 1500 UTC
Warning Condition: Persistence


Space Weather Message Code: ALTEF3
Serial Number: 1788
Issue Time: 2011 May 01 0051 UTC

ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Threshold Reached: 2011 May 01 0035 UTC
Station: GOES13