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How does a SPECI differ from a routine METAR?
- A.It is a forecast for the next 24 hours
- B.It is a special, unscheduled report issued when significant weather changes occur
- C.It is issued only once per day at midnight
Correct answer
B. It is a special, unscheduled report issued when significant weather changes occur
Why
METARs are routine reports issued on a regular schedule, usually hourly. A SPECI is issued between routine reports when conditions change enough to meet special criteria, such as a ceiling or visibility threshold being crossed.
Source: FAA-G-8082-22 Ch. 3 · ACS knowledge area: Aviation Weather Sources and Effects · From the Aviation Weather practice bank (WEA-019).