Forecast classification of aviation weather forecast

① Terminal (airport) weather forecast: aviation weather forecast in the visible area centered on the airport runway. The content includes providing meteorological elements and weather phenomena required for aircraft take-off and landing, such as ground temperature, air pressure, wind direction, wind speed, cloud shape, cloud amount, cloud height, runway visibility, thunderstorm, etc. There is a terminal weather forecast, which is published twice a day, namely 12 once a day at 24: 00. The other is to provide it at any time according to the needs of the task. Many airports in the world have specially set up the broadcasting service of airport weather forecast, so that the weather forecast of the terminal can be continuously released to the aircrew.

(2) Route weather forecast: including the weather forecast within 25 kilometers of the take-off and landing routes and both sides of the routes. The contents include wind direction, wind speed, temperature, cloud cover, cloud shape, cloud height, visibility, weather phenomena (fog, thunderstorm, precipitation, etc.). ) and icing at flying altitude. The route forecast is usually provided to the crew by the weather station of the departure terminal one hour before departure, and is valid until one hour after the expected flight. Airline weather forecast is generally released only in the form of flight weather report, but when the route is long and the weather changes are complicated, the airline weather profile will be attached.

③ Regional weather forecast: The weather forecast issued by aviation meteorological departments in flight control areas is generally issued in the form of weather forecast charts. In addition, timely notice or early warning is issued for aviation dangerous weather. Its main content is to forecast the starting and ending time, intensity, causes and future changes of dangerous weather.