Domanda 446, Meteorology - ATPL - Airline Transport Pilot license

At a temperature less than or equal to that of the ISA and where the QNH is less than 1013.25 hPa
In a cold low pressure region
In a very cold area with a QNH of 1015 hPa
At a temperature greater than or equal to that of the ISA and where the QNH is greater than or equal to 1013.25 hPa