Aviation Weather EXAM VERIFIED |
LATEST UPDATE
What is the Environmental Lapse Rate (ELR) for a stable atmosphere? - Answer- ELR <
2°C per 1,000 ft
What is the Environmental Lapse Rate (ELR) for an unstable atmosphere? - Answer-
ELR > 3°C per 1,000 ft
What is the Environmental Lapse Rate (ELR) for a conditionally unstable atmosphere? -
Answer- Between 2-3°C per 1,000 ft
What happens to aircraft altitude indication in cold weather? - Answer- Aircraft is lower
than indicated.
What does satellite imagery show? - Answer- Cloud coverage (visible, IR, water vapor
imagery) but not precipitation directly.
What is GFA in aviation? - Answer- Graphical Forecast for Aviation: FAA-legal briefing
for areas without a TAF.
What does MOS stand for? - Answer- Model Output Statistics: Automated weather
model, not FAA-approved.
What is a Center Weather Advisory (CWA) issued for? - Answer- Short-term, hazardous
weather impacting aviation.
What is the standard atmospheric pressure in inHg? - Answer- 29.92 inHg
What is a front in meteorology? - Answer- Boundary between two air masses.
What does a broken ceiling of 'BKN015' indicate? - Answer- Broken at 1,500 ft.
What does 'BKN065' indicate in a PIREP? - Answer- Broken at 6,500 ft (not ceiling
unless lowest layer reported).
How does water temperature change compared to land temperature? - Answer- Water
changes temperature much slower.
What type of fog occurs when warm moist air moves over cold land or water? - Answer-
Advection Fog.
What is the primary collector for PIREPs? - Answer- FSS (Flight Service Station).
LATEST UPDATE
What is the Environmental Lapse Rate (ELR) for a stable atmosphere? - Answer- ELR <
2°C per 1,000 ft
What is the Environmental Lapse Rate (ELR) for an unstable atmosphere? - Answer-
ELR > 3°C per 1,000 ft
What is the Environmental Lapse Rate (ELR) for a conditionally unstable atmosphere? -
Answer- Between 2-3°C per 1,000 ft
What happens to aircraft altitude indication in cold weather? - Answer- Aircraft is lower
than indicated.
What does satellite imagery show? - Answer- Cloud coverage (visible, IR, water vapor
imagery) but not precipitation directly.
What is GFA in aviation? - Answer- Graphical Forecast for Aviation: FAA-legal briefing
for areas without a TAF.
What does MOS stand for? - Answer- Model Output Statistics: Automated weather
model, not FAA-approved.
What is a Center Weather Advisory (CWA) issued for? - Answer- Short-term, hazardous
weather impacting aviation.
What is the standard atmospheric pressure in inHg? - Answer- 29.92 inHg
What is a front in meteorology? - Answer- Boundary between two air masses.
What does a broken ceiling of 'BKN015' indicate? - Answer- Broken at 1,500 ft.
What does 'BKN065' indicate in a PIREP? - Answer- Broken at 6,500 ft (not ceiling
unless lowest layer reported).
How does water temperature change compared to land temperature? - Answer- Water
changes temperature much slower.
What type of fog occurs when warm moist air moves over cold land or water? - Answer-
Advection Fog.
What is the primary collector for PIREPs? - Answer- FSS (Flight Service Station).
