Question id 17 - Operational Procedure - EASA PPL(A) - Private Pilot License

A slow increase of the wind speed in altitudes above 13000 ft.
A wind speed change of more than 15 kt.
A vertical or horizontal change of wind speed and wind direction
A meteorological downslope wind phenomenon in the alps

Training tests and timed exam simulations EASA PPL(A) - Private Pilot License