Home › Part 107 Practice Tests › Aviation Weather Questions › Question 75
On a sunny afternoon in hilly terrain, a remote pilot notices gusty, swirling winds near ridges and slopes despite a light regional forecast. What is the most likely explanation?
- A.Heating-driven local winds and terrain-induced turbulence that station forecasts may not capture
- B.A SIGMET must be in effect for the area
- C.The AWOS station must be faulty
Correct answer
A. Heating-driven local winds and terrain-induced turbulence that station forecasts may not capture
Why
Sun-heated slopes generate upslope and valley breezes, and ridges create mechanical eddies on their lee side. Local effects like these are a common reason on-site observation must supplement published reports.
Source: FAA-G-8082-22 Ch. 3 · ACS knowledge area: Aviation Weather Sources and Effects · From the Aviation Weather practice bank (WEA-075).