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11th December 2007 | 06:06

#3 (permalink)

bflyer

Joined: Dec 2006

Posts: 185

Likes: 0

From: N33 24.7 E36 30.8 E 36 30.8

Hi....
The international significant weather charts are issued at 00 / 06 / 12 / 18
UTC
so when it states that the SIG WX is valid at for example, at 06 UTC, it means that the validity commences at 06 UTC
hope that helps...safe flying