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Thread: SIGMET validity
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Old 11th December 2007 | 10:46
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HotDog
The Reverend
 
Joined: Oct 1999
Posts: 2,020
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From: Sydney,NSW,Australia
The international significant weather charts are issued at 00 / 06 / 12 / 18
06UTC to 12UTC. Sawasdee.
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