Meteorology (IRR) Flashcards
1
Q
Define CAVOK
A
10km+ vis
no cloud below 5000 feet/MSA (whichever is highest)
no precipitation reaching the ground
no CBs (cumulonimbus)
no thunderstorms, shallow fog or low drifting snow
2
Q
What is a TREND and how long is it valid for?
A
Short term landing forecast, valid for 2 hours
3
Q
What does RVR stand for and why is it never included in a TAF (terminal area forecast)
A
Runway Visual Range, which cannot be forecast
4
Q
What is meant by ‘RAPID’ in a weather report?
A
rapid change to occur, within 30 mins
