• TROPDISC: French Gale War

    From Mike Powell@1:2320/105 to All on Wed Apr 2 08:22:00 2025
    439
    AXNT20 KNHC 021003
    TWDAT

    Tropical Weather Discussion
    NWS National Hurricane Center Miami FL
    1215 UTC Wed Apr 2 2025

    Tropical Weather Discussion for North America, Central America
    Gulf of Mexico, Caribbean Sea, northern sections of South
    America, and Atlantic Ocean to the African coast from the
    Equator to 31N. The following information is based on satellite
    imagery, weather observations, radar and meteorological analysis.

    Based on 0600 UTC surface analysis and satellite imagery through 1000 UTC.

    ...SPECIAL FEATURES...

    Meteo-France Gale Warning: Meteo-France forecasts gale-force NW
    winds from 12 UTC through 21 UTC on April 2 for the areas of
    Madeira and Canarias. Rough to very rough seas will likely
    accompany these winds.

    ...MONSOON TROUGH/INTERTROPICAL CONVERGENCE ZONE...

    The monsoon trough enters the Atlantic Ocean near 12N17W to
    01N20W. The ITCZ extends from 01N20W to offshore of northern
    Brazil near 01S46W. Scattered moderate convection is noted from
    S of 05N between 12W-23W and S of 04N and W of 30W.

    ...GULF OF MEXICO...

    The subtropical ridge extends from the western Atlantic through
    the central Gulf. This pattern is supporting fresh to strong SE
    winds and moderate seas mainly W of 85W. Moderate winds and slight
    to moderate seas are noted elsewhere. Platforms in the northwest
    and north-central Gulf are still reporting areas of fog reducing
    visibility as to as low as 1 1/2 miles.

    For the forecast, fresh to strong SE winds will increase to near-
    gale on Thu west of 85W. These winds will support building rough
    seas in this region through the end of the week. East of 85W,
    moderate SE winds will strengthen to fresh to strong speeds Wed
    into Thu, including the Florida Straits. The next front is
    expected to enter the NW Gulf by Sat night and continue moving SE
    while weakening on Sun. Strong winds and rough seas will prevail
    in the wake of the front on Sun.

    ...CARIBBEAN SEA...

    The pressure gradient between strong high pressure north of the
    area and a 1008 mb over northern Colombia is supporting strong to
    near-gale trade winds off northeastern Colombia, in the Gulf of
    Venezuela and off central Honduras. Moderate to fresh trade winds
    are noted elsewhere. Rough seas are noted off Colombia and the
    south- central Caribbean, and moderate seas prevail elsewhere.

    For the forecast, strong to near-gale NE winds and rough to very
    rough seas offshore of Colombia and in the Gulf of Venezuela will
    prevail through the weekend. Fresh to strong E to SE winds in the
    Gulf of Honduras will increase to near-gale force speeds, with
    rough seas beginning on Thu and continue through the weekend.
    Elsewhere, moderate to fresh trade winds will strengthen with
    building rough seas dominating the basin Thu into the weekend.
    Large E swell will impact the tropical Atlantic waters and
    Caribbean Passages most of the week, maintaining rough seas.

    ...ATLANTIC OCEAN...

    Refer to the section above for details on the Gale Warning in
    effect for Meteo-France area.

    The Atlantic basin is dominated by 1033 mb high pressure centered
    near 33N43W, with the subtropical ridge axis extending westward
    toward central Florida. A complex low northeast of the Azores is
    supporting strong N winds and rough seas north of 24N and east of
    40W. Elsewhere, this pattern is supporting fresh trade winds and 8
    to 10 ft seas across the tropical Atlantic south of 24N, and
    gentle to moderate breezes and 5 to 7 ft seas north of 25N and
    west of 40W.

    For the forecast west of 55W, high pressure will build across the area.
    The building high will support fresh to strong E to SE winds and
    rough seas across the waters south of 25N, including through the
    Atlantic Passages into the Caribbean.

    $$
    ERA
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