Space Weather Message Code: WARK04
Serial Number: 1718
Issue Time: 2011 Apr 12 1225 UTC
EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 1717
Valid From: 2011 Apr 12 0630 UTC
Now Valid Until: 2011 Apr 12 1600 UTC
Warning Condition: Persistence
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