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  2. WXXM (data model) - Wikipedia

    en.wikipedia.org/wiki/WXXM_(data_model)

    WXXM 1.0 was introduced in 2007, representing METAR, SPECI, TAF, SIGMET and other ICAO information as specified in International Civil Aviation Organization (ICAO) Annex III. WXXM 1.1 [1] was released in 2010 with a number of additional products beyond ICAO Annex 3. WXXM 2.0 was released in 2014 as a major update.

  3. Terminal aerodrome forecast - Wikipedia

    en.wikipedia.org/wiki/Terminal_aerodrome_forecast

    TAF indicates that the following is a terminal aerodrome forecast. This line may also indicate an amended forecast (TAF AMD) or a corrected forecast (TAF COR) [3] KXYZ indicates the airport to which the forecast applies (ICAO airport code). 051730Z indicates that the report was issued on the 5th of the month at 1730 UTC (also known as Zulu ...

  4. METAR - Wikipedia

    en.wikipedia.org/wiki/METAR

    METAR indicates that the following is a standard hourly observation. KTTN is the ICAO identifier for the Trenton-Mercer Airport . 051853Z indicates the day of the month is the 5th and the time of day is 1853 Zulu/ UTC , or 1:53PM Eastern Standard Time .

  5. Trend type forecast - Wikipedia

    en.wikipedia.org/wiki/Trend_Type_Forecast

    A TTF is a professionally considered forecast for weather over a two-hour period, [1] and is based on an actual weather report, such as a METAR or SPECI and appended to the end of it. [1] A TTF is similar to or sometimes in addition to a TAF, a terminal aerodrome forecast, but during the TTF's validity period is considered superior to a TAF.

  6. Altimeter setting - Wikipedia

    en.wikipedia.org/wiki/Altimeter_setting

    The QNH altimeter setting is one of the data included in METAR messages. An alternative setting is QFE or SPS/STD: An alternative setting is QFE or SPS/STD: QNH - is the barometric altimeter setting that causes an altimeter to read aircraft elevation above mean sea level - altitude ( AMSL - above mean sea level) in ISA temperature conditions in ...

  7. Weather forecasting - Wikipedia

    en.wikipedia.org/wiki/Weather_forecasting

    Within any modern model is a set of equations, known as the primitive equations, used to predict the future state of the atmosphere. [61] These equations—along with the ideal gas law—are used to evolve the density, pressure, and potential temperature scalar fields and the velocity vector field of the atmosphere through time.

  8. Ceiling (cloud) - Wikipedia

    en.wikipedia.org/wiki/Ceiling_(cloud)

    In aviation, ceiling is a measurement of the height of the base of the lowest clouds (not to be confused with cloud base which has a specific definition) that cover more than half of the sky (more than 4 oktas) relative to the ground.

  9. The Meta-Four - Wikipedia

    en.wikipedia.org/wiki/The_Meta-Four

    At NXT Battleground on May 28, 2023, Noam Dar defeated Dragon Lee to retain the NXT Heritage Cup with assistance from Jakara Jackson, Lash Legend and Oro Mensah. [1] On the June 6 episode of NXT during a backstage segment, Dar accepted Nathan Frazer's challenge to a match for the NXT Heritage Cup and introduced the group as The Meta-Four. [2]