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  2. Station model - Wikipedia

    en.wikipedia.org/wiki/Station_model

    The station model uses a wind barb to show both wind direction and speed. The wind barb shows the speed using "flags" on the end. Each half of a flag depicts 5 kn (9.3 km/h; 5.8 mph)

  3. METAR - Wikipedia

    en.wikipedia.org/wiki/METAR

    metar kttn 051853z 04011kt 1/2sm vcts sn fzfg bkn003 ovc010 m02/m02 a3006 rmk ao2 tsb40 slp176 p0002 t10171017= [14] METAR indicates that the following is a standard hourly observation. KTTN is the ICAO identifier for the Trenton-Mercer Airport .

  4. IWXXM - Wikipedia

    en.wikipedia.org/wiki/IWXXM

    ICAO Meteorological Information Exchange Model (IWXXM) is a format for reporting weather information in XML/GML.IWXXM includes XML/GML-based representations for products standardized in International Civil Aviation Organization (ICAO) Annex III, such as METAR/SPECI, TAF, SIGMET, AIRMET, Tropical Cyclone Advisory (TCA), Volcanic Ash Advisory (VAA), [1] Space Weather Advisory and World Area ...

  5. Terminal aerodrome forecast - Wikipedia

    en.wikipedia.org/wiki/Terminal_aerodrome_forecast

    In meteorology and aviation, terminal aerodrome forecast (TAF) is a format for reporting weather forecast information, [1] particularly as it relates to aviation.. TAFs complement and use similar encoding to METAR reports.

  6. Surface weather observation - Wikipedia

    en.wikipedia.org/wiki/Surface_weather_observation

    ASOS sensors, located at Salinas, California. Surface weather observations have traditionally been taken at airports due to safety concerns during takeoffs and landings. The ICAO defines the International Standard Atmosphere (also known as ICAO Standard Atmosphere), which is the model of the standard variation of pressure, temperature, density, and viscosity with elevation/altitude in the ...

  7. SYNOP - Wikipedia

    en.wikipedia.org/wiki/SYNOP

    SYNOP (surface synoptic observations) is a numerical code (called FM-12 by WMO) used for reporting weather observations made by staffed and automated weather stations. SYNOP reports are typically sent every six hours by Deutscher Wetterdienst on shortwave and low frequency using RTTY.

  8. Colour state - Wikipedia

    en.wikipedia.org/wiki/Colour_state

    The colour state may be appended to a METAR report. A short period forecast called a TREND which covers the following two hours from the observation may also be added, often with reference to the colour state.

  9. OpenWeatherMap - Wikipedia

    en.wikipedia.org/wiki/Openweathermap

    The convolutional machine learning model uses meteorological broadcast services and data from airport weather stations, on-ground radar stations, weather satellites, remote sensing satellites, METAR, and automated weather stations. The company has more than 2 million customers, ranging from independent developers to Fortune 500 companies. [1]