Weather & Meteorology Flashcards
6 cards from real Aviation practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 6 Weather & Meteorology flashcards as text
What is a cold front?
Answer: The leading edge of a cold air mass replacing a warmer air mass
A cold front is the boundary along which cold, dense air advances and displaces warmer, less dense air.
Mountain wave turbulence is most likely to occur on which side of a mountain range?
Answer: Leeward side (downwind)
Mountain wave turbulence and rotor clouds typically occur on the leeward (downwind) side of mountain ranges as air oscillates after being disrupted.
What does the symbol 'FG' mean in an aviation weather report?
Answer: Fog
FG is the standard METAR/SPECI code for fog, indicating visibility reduced by water droplets suspended near the surface.
What is the approximate freezing level if surface temperature is 25°C and standard lapse rate applies?
Answer: 12,500 ft MSL
Using the standard lapse rate of 2°C/1,000 ft, 25°C ÷ 2°C = 12,500 ft MSL is the approximate freezing level.
Which AIRMET type (AIRMET Sierra) is issued for which condition?
Answer: IFR conditions and mountain obscuration
AIRMET Sierra is issued for IFR conditions (ceilings below 1,000 ft and/or visibility below 3 miles) and mountain obscuration.
What weather phenomenon is indicated when you observe lenticular clouds over a mountain range?
Answer: Mountain wave activity with possible severe turbulence
Lenticular (lens-shaped) clouds form in the crests of mountain waves and are a visual indicator of strong wave activity and potentially severe turbulence.