What Is a SPECI and When Is It Issued?
Pilot Institute
NOVEMBER 5, 2024
A sudden wind shift, a 10-knot or greater speed increase, a 45-degree or more direction change, or gusts exceeding limits may also cause a SPECI. This includes the wind direction in degrees and the wind speed in knots. 011955Z : The date and time of issuance (first day of the month at 19:55 UTC).
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