Home › Part 107 Practice Tests › Aviation Weather Questions › Question 25
In a TAF, what does 'PROB30' mean?
- A.A 30 percent probability of the described weather occurring
- B.Winds will be 30 knots during the problem period
- C.Visibility will be 30 statute miles with probability stated
Correct answer
A. A 30 percent probability of the described weather occurring
Why
PROB followed by 30 or 40 gives the percentage chance that the associated weather will occur. It is used when the event is possible but not certain enough for a prevailing or TEMPO group.
Source: FAA-G-8082-22 Ch. 3 · ACS knowledge area: Aviation Weather Sources and Effects · From the Aviation Weather practice bank (WEA-025).