PPL Aviation Weather Services and Meteorology Flashcards
6 cards from real PPL practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 6 PPL Aviation Weather Services and Meteorology flashcards as text
What does a METAR report provide?
Answer: A surface weather observation of current conditions at a specific airport
A METAR is a routine aviation weather observation providing current surface conditions including wind, visibility, sky condition, temperature, dew point, and altimeter setting.
What does the METAR cloud entry 'OVC010' indicate?
Answer: Overcast clouds at 1,000 feet AGL
OVC means overcast (8/8 sky coverage) and 010 represents the cloud height in hundreds of feet AGL, so OVC010 = overcast at 1,000 feet AGL.
What is a TAF?
Answer: Terminal Aerodrome Forecast — a weather forecast valid 24 to 30 hours for a 5-mile radius around an airport
A TAF provides weather forecast information within a 5-mile radius of a specific airport, valid for 24 to 30 hours, issued four times daily using METAR-like coding.
What type of weather is typically associated with a fast-moving cold front passage?
Answer: A narrow band of intense convective weather followed by rapid clearing and improved conditions
Cold fronts move quickly and force warm moist air aloft rapidly, producing a narrow but intense band of cumulonimbus clouds, thunderstorms, and gusty gusty winds, followed by cooler, clearer air.
What type of fog forms when warm, moist air moves over a cooler surface?
Answer: Advection fog
Advection fog forms when warm, moist air moves horizontally over a cooler surface that chills the air below its dew point, causing condensation.
What is the dew point temperature?
Answer: The temperature to which air must be cooled for water vapor to begin condensing into liquid water
The dew point is the temperature at which air becomes saturated and water vapor condenses, forming dew, frost, fog, or clouds.