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Joaquin – Storm Discussion/Predictions


  • Atlantic Post-Tropical Cyclone Martin Discussion Number 10

    WTNT41 KNHC 032033

    Post-Tropical Cyclone Martin Discussion Number 10
    NWS National Hurricane Center Miami FL AL162022
    900 PM GMT Thu Nov 03 2022

    ASCAT-C data that was not available until after the issuance of the
    last advisory, but was valid at 1317 UTC, showed that Martin likely
    became frontal earlier today and the system no longer has a
    well-defined circulation. In addition, both TAFB and SAB evaluated
    the system as extratropical at 1800 UTC. Therefore, Martin is now
    classified as post-tropical and this will be the last NHC advisory.

    While Martin does not currently appear to have a well-defined
    center, the powerful post-tropical cyclone is expected to redevelop
    a well-defined center as it occludes over the next 12 to 24 h.
    Martin is moving at a remarkable clip of 50 kt, but should begin to
    slow down soon and turn north-northwestward during the next few
    hours. After that, the cyclone is forecast to move relatively slowly
    on Friday before picking up speed toward the east-southeast or east
    through the early weekend. Martin's maximum winds are still forecast
    to slowly decrease over the next few days, however the combination
    of Martin and other non-tropical low pressure systems are still
    expected to produce hazardous wind and seas over a very wide area of
    the North Atlantic for the next couple of days.

    Additional information on marine hazards can be found in High Seas
    Forecasts issued by the National Weather Service, the UK Met
    Office, and Meteo France. Links to each product are provided below.

    * National Weather Service: AWIPS Header NFDHSFAT1, WMO header
    FZNT01 KWPC, and online at
    * UK Met Office: WMO header FQNT21 EGRR and online at
    * Meteo France: WMO header FQNT50 LFPW and online at


    INIT 03/2100Z 50.5N 34.5W 70 KT 80 MPH...POST-TROPICAL
    12H 04/0600Z 55.0N 35.0W 70 KT 80 MPH...POST-TROP/EXTRATROP
    24H 04/1800Z 56.5N 35.0W 60 KT 70 MPH...POST-TROP/EXTRATROP
    36H 05/0600Z 56.5N 31.0W 55 KT 65 MPH...POST-TROP/EXTRATROP
    48H 05/1800Z 55.5N 25.0W 50 KT 60 MPH...POST-TROP/EXTRATROP
    60H 06/0600Z 55.0N 17.0W 45 KT 50 MPH...POST-TROP/EXTRATROP
    72H 06/1800Z...DISSIPATED

    Forecaster D. Zelinsky


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