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  2. 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 .

  3. 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. [citation needed]

  4. 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.

  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. 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.

  7. SIGMET - Wikipedia

    en.wikipedia.org/wiki/SIGMET

    SIGMET, [1] or Significant Meteorological Information (AIM 7-1-6), [2] is a severe weather advisory that contains meteorological information concerning the safety of all aircraft.

  8. 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 ...

  9. Station model - Wikipedia

    en.wikipedia.org/wiki/Station_model

    Isotachs are particularly useful in diagnosing the location of the jet stream on upper level constant pressure charts, usually at or above the 300 hPa level. [6] The flags and pennants point to the low pressure, so it is possible to determine at which hemisphere the station is standing.