Meteorological information supplied to aircraft operators are always up to date and include essentially the following forecasts:
1. Upper wind and upper air temperature;
3. Geopotential altitude of flight levels
4. Flight level and temperature of tropopause;
5. Direction, speed and flight level of maximum wind and
6. Significant weather phenomena.
3. Terminal Aerodrome Forecast (TAF) and many more as far as in conformity to ICAO Annex 3