ALERT: Geomagnetic Storm Warning Condition: Onset

Space Weather Message Code: WARK04
Serial Number: 1724
Issue Time: 2011 Apr 29 1951 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2011 Apr 29 1950 UTC
Valid To: 2011 Apr 30 1600 UTC
Warning Condition: Onset