• TROPDISC: Gale Warnings

    From Mike Powell@454:3/105 to All on Friday, January 31, 2025 09:40:00
    772
    AXNT20 KNHC 311046
    TWDAT

    Tropical Weather Discussion
    NWS National Hurricane Center Miami FL
    1215 UTC Fri Jan 31 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 1030 UTC.

    ...SPECIAL FEATURES...

    Caribbean Gale Warning: The pressure gradient between a ridge
    over the western Atlantic and the Colombian low is sustaining
    strong to gale force NE-E winds across the south-central
    Caribbean. Winds will diminish below gale-force late this morning.
    These winds will pulse to gale force each night and early morning
    offshore of Colombia through Tue night. Seas are forecast to
    build to around 14 ft with the strongest winds.

    Gulf of Mexico Gale Warning: A cold front will progress
    southeastward through the Gulf of Mexico today and on Sat. Winds
    will briefly reach gale force in the southwestern Gulf offshore
    of Veracruz this evening, with strong winds occurring through
    early Sat. Locally very rough seas will accompany these winds.

    Gale Warning E of 35W: Robust ridge in the far NE Atlantic forces
    strong to gale force N winds in the Meteo France marine zones of
    Agadir and Tarfaya. The forecast calls for North 8 in the
    Beaufort wind scale, with severe gusts, but mainly in the far E of
    the above mentioned marine zones. Mariners can expect rough to
    very rough seas in these waters. This forecast is valid until 01/0000 UTC.

    ...MONSOON TROUGH/ITCZ...

    The monsoon trough enters the Atlantic through the coast of
    Liberia near 06N10W and continues west-southwestward to 04N15W.
    The ITCZ extends from 04N15W to 01S46W. Scattered moderate
    convection is observed south of 05N and between 20W and 45W.

    ...GULF OF MEXICO...

    Please read the Special Features section for information regarding
    a Gale Warning in the southwestern Gulf of Mexico offshore of Veracruz.

    A cold front extends from SW Louisiana to 22N98W in northern
    Mexico. A few showers are seen ahead of the frontal boundary. The
    pressure gradient between lower pressures in Mexico and the
    subtropical ridge centered between Cape Hatteras and Bermuda
    result in fresh to locally strong southerly winds between 85W and
    93W. Seas in these waters are 5-7 ft, with the highest seas
    occurring north of Yucatan. Moderate to locally fresh SE winds and
    moderate seas are found in the Florida Straits. Elsewhere,
    moderate or weaker winds and slight to moderate seas are prevalent.

    For the forecast, moderate to locally fresh S to SE winds will
    occur across the central and eastern Gulf this morning as the
    pressure gradient strengthens between a cold front moving through
    the NW Gulf and building high pressure over the western Atlantic.
    Winds may pulse to strong speeds in the central Gulf. Winds will
    turn to the NW to NE behind the aforementioned cold front, with
    fresh to locally strong winds possible today as the front moves
    southeastward. Winds will briefly reach gale force in the
    southwestern Gulf offshore of Veracruz this evening, with strong
    winds occurring through early Sat. Locally very rough seas will
    accompany these winds. The front will stall then dissipate this
    weekend, and ridging will build over the basin, supporting gentle
    to moderate winds and slight to moderate seas across the Gulf this
    weekend into early next week.

    ...CARIBBEAN SEA...

    Please read the Special Features section for information regarding
    a Gale Warning near the coast of Colombia.

    Gale force winds are occurring offshore of Colombia with
    associated seas to 14 ft. Moderate to fresh E winds are noted
    across the basin, with strong winds occurring through the Gulf of
    Honduras, in the lee of Cuba, through the Windward Passage and
    downwind of Hispaniola. Moderate to rough seas are noted across
    the region, with the highest seas occurring in the south-central Caribbean.

    For the forecast, pulsing gale force winds will occur offshore of
    Colombia each night and morning through the middle of next week
    as a tight pressure gradient prevails between low pressure over
    Colombia and high pressure in the western Atlantic. Widespread
    moderate to fresh trades are expected across much of the
    Caribbean, with winds pulsing to strong speeds across the central
    basin, through the Windward Passage, downwind of Hispaniola and in
    the lee of Cuba. Rough seas will occur across the central and
    southwestern Caribbean, with localized very rough seas near the
    strongest winds. Elsewhere, residual E swell in the tropical
    Atlantic waters will combine with a new N swell this weekend,
    promoting locally rough seas east of the Windward and Leeward
    Islands and their passages into the Caribbean through the middle
    of next week. Moderate seas will prevail across the remainder of the basin.

    ...ATLANTIC OCEAN...

    A cold front is entering the northern forecast waters south of
    Bermuda and another front extending from 31N47W to 25N56W,
    followed by a surface trough to eastern Cuba. A few showers are
    noted near these boundaries. The rest of the SW North Atlantic,
    west of 55W, is dominated by a strong subtropical ridge centered
    between Cape Hatteras and Bermuda. Fresh to strong easterly trade
    winds are occurring south of 25N and west of 55W. The strongest
    winds are found at the entrance of the Windward Passage. Seas in
    the area described are 5-8 ft. Northerly swell is producing rough
    seas north of 28N and between 50W and 68W. Elsewhere west of 55W,
    moderate or weaker winds and moderate seas prevail.

    The rest of the tropical Atlantic is under the influence of a
    1036 mb high pressure system between the Azores and Madeira
    Islands. The tight pressure gradient between this ridge and lower
    pressures in NW Africa and deep tropics result in fresh to near
    gale-force N-NE winds south of a line from 31N29W to 20N50W and
    east of 50W. These winds are sustaining rough to very rough seas,
    with the highest seas occurring north of the Cabo Verde Islands
    and between the Canary Islands and Morocco. Moderate to fresh
    easterly winds and moderate to rough seas are evident south of 20N
    and between 50W and the Lesser Antilles. In the remainder of the
    basin, moderate or weaker winds and moderate seas are prevalent.

    For the forecast, building high pressure over the western
    Atlantic will support increasing moderate to fresh E to NE winds
    and building seas north of 20N today. A tightening pressure
    gradient between the aforementioned ridge and low pressure moving
    eastward through the United States will lead to fresh to strong S
    to SW winds offshore of Florida, generally north of 28N and west
    of 65W, this afternoon through Sat morning. Winds will diminish by
    Sat afternoon in this region as the low moves offshore and lifts
    to the northeast. Elsewhere, fresh to strong E winds and rough
    seas will continue south of 22N through the beginning of next
    week. Looking ahead, gentle to moderate winds and moderate seas
    are forecast for the waters north of 22N for Sun into early next week.

    $$
    ADAMS
    --- SBBSecho 3.20-Linux
    * Origin: ILink: CCO - capitolcityonline.net (454:3/105)