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    • Graphical Airmen's Meteorological Information (G-AIRMET) Weather Advisories

    Metadata Updated: September 19, 2023

    A G-AIRMET is a graphical advisory of weather that may be hazardous to aircraft, but are less severe than SIGMETs. They are valid at specific time "snapshots". The G-AIRMET forecasts are distributed in XML (USWX) format. The USWX XML files contain forecaster-created graphical objects which depict hazard areas and attributes. G-AIRMETs are issued at discrete times 3 hours apart for a period of up to 12 hours into the future (00, 03, 06, 09, and 12 hours). They are issued at 03:00, 09:00, 15:00 and 21:00 UTC (with updates issued as necessary). G-AIRMETs are issued by the AWC for the lower 48 states and adjacent coastal waters. The G-AIRMET USWX XML files are currently disseminated from AWC to the operational NGITWS system, and from AWC to the NWSTG for dissemination over NOAAPort. AWC provides the legacy AIRMET information via traditional alphanumeric code (TAC), which is currently archived at NCEI. The G-AIRMET data in BUFR format was operational from 2010 to 2022 and was not archived. This data archive includes the USWX XML formatted products starting on January 1, 2023.

    Access & Use Information

    License: No license information was provided. If this work was prepared by an officer or employee of the United States government as part of that person's official duties it is considered a U.S. Government Work.

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    Dates

    Metadata Date June 23, 2023
    Metadata Created Date January 27, 2023
    Metadata Updated Date September 19, 2023
    Reference Date(s) January 1, 2023 (publication)
    Frequency Of Update daily

    Metadata Source

    Harvested from ncdc

    Other Data Resources

    Additional Metadata

    Resource Type Dataset
    Metadata Date June 23, 2023
    Metadata Created Date January 27, 2023
    Metadata Updated Date September 19, 2023
    Reference Date(s) January 1, 2023 (publication)
    Responsible Party NOAA National Centers for Environmental Information (Point of Contact)
    Contact Email
    Guid gov.noaa.ncdc:C01686
    Access Constraints Distribution liability: NOAA and NCEI make no warranty, expressed or implied, regarding these data, nor does the fact of distribution constitute such a warranty. NOAA and NCEI cannot assume liability for any damages caused by any errors or omissions in these data. If appropriate, NCEI can only certify that the data it distributes are an authentic copy of the records that were accepted for inclusion in the NCEI archives., Use liability: NOAA and NCEI cannot provide any warranty as to the accuracy, reliability, or completeness of furnished data. Users assume responsibility to determine the usability of these data. The user is responsible for the results of any application of this data for other than its intended purpose., Cite as: National Centers for Environmental Prediction/Aviation Weather Center. 2023: Graphical Airman's Meteorological Information Weather Advisories(G-AIRMET). [indicate subset used]. NOAA National Centers for Environmental Information. NCEI DSI 2069_01. Accessed [date].
    Bbox East Long -66.0
    Bbox North Lat 50.0
    Bbox South Lat 24.0
    Bbox West Long -125.0
    Coupled Resource
    Frequency Of Update daily
    Harvest Object Id ab153bb9-e3c0-495c-a6db-3c891557def5
    Harvest Source Id 2cb3ef77-1683-4c2a-9119-dc65e50917c6
    Harvest Source Title ncdc
    Licence Applies to lower 48 states and adjacent coastal waters.
    Lineage The data were produced by the NOAA Aviation Weather Center and are archive by the NOAA National Centers for Environmental Information.
    Metadata Language eng; USA
    Metadata Type geospatial
    Old Spatial {"type": "Polygon", "coordinates": [[[-125.0, 24.0], [-66.0, 24.0], [-66.0, 50.0], [-125.0, 50.0], [-125.0, 24.0]]]}
    Progress onGoing
    Spatial Data Service Type
    Spatial Reference System
    Spatial Harvester True
    Temporal Extent Begin 2023-01-01

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