Home › Part 107 Practice Tests › Aviation Weather Questions › Question 34
Besides severe icing and severe turbulence, what widespread obscuring phenomenon can a SIGMET cover?
- A.Morning ground fog at a single airport
- B.Haze limited to one valley for one hour
- C.Volcanic ash or a dust storm obscuring a large area
Correct answer
C. Volcanic ash or a dust storm obscuring a large area
Why
SIGMETs also address widespread obscuration from sources such as volcanic ash, sandstorms, and dust storms. These events can affect visibility and engine or airframe operation over a broad region.
Source: FAA-G-8082-22 Ch. 3 · ACS knowledge area: Aviation Weather Sources and Effects · From the Aviation Weather practice bank (WEA-034).