• Western Atlantic Swell

    From Dumas Walker@21:1/175 to All on Fri Feb 13 09:06:05 2026
    315
    AXNT20 KNHC 131010
    TWDAT

    Tropical Weather Discussion
    NWS National Hurricane Center Miami FL
    1215 UTC Fri Feb 13 2026

    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...

    Western Atlantic Significant Swell: A cold front curves
    southwestward from northeast of Bermuda across 31N61W to near
    Port Pierce, Florida. The combination of wind waves and existing
    large NW swell will maintain seas to 12 north of 30N between 55W
    and 60W through early this morning. As the front weakens further
    today, it will allow seas to drop below 12 ft.

    Please read the latest High Seas Forecast at website: https://www.nhc.noaa.gov/text/MIAHSFAT2.shtml for more details.

    ...MONSOON TROUGH/ITCZ...

    The monsoon trough enters the Atlantic near 10N14W to 04N20W. The
    ITCZ continues from 04N20W to 01S40W. No significant convection is
    noted at this time.

    ...GULF OF MEXICO...

    A stationary front meanders northwestward from central Florida to
    the Florida Panhandle, then turns westward across the coastal
    areas of Mississippi, Louisiana, and southeastern Texas.
    Confirmed by local observations, patchy fog is noted along the
    coast of southern Bay of Campeche with local visibilities down to
    6 nm. Otherwise, a 1020 mb high at the northwestern Gulf is
    providing light to gentle winds and slight seas for the entire Gulf.

    For the forecast, high pressure will remain in control of the
    weather pattern across the Gulf waters today, bringing in general
    light to gentle winds, with the exception of moderate to fresh
    easterly winds across the eastern Bay of Campeche through Sun.
    Southerly return flow will increase to fresh to strong speeds on
    Sat ahead of a cold front that will move across the west and
    central waters Sat night and Sun. Strong S to SW winds and rough
    seas are expected in the nort-central and NE Gulf with this
    frontal system on Sun. The front is forecast to move SE of the area by Mon.

    ...CARIBBEAN SEA...

    A trade-wind regime continues across much of the basin, with
    fresh to strong NE winds and rough seas at the south-central
    basin. Moderate to fresh NE to E winds and moderate seas dominate
    the southwestern, north-central and eastern Gulf, including the
    Windward Passage and lee of Cuba. Mainly gentle NE winds and
    slight to moderate seas are noted at the northwestern Gulf.

    For the forecast, pulsing strong NE winds will continue near the coast
    of Colombia through the forecast period due to the pressure
    gradient between the Colombia/Panamanian low and high pressure
    centered N of the region. Moderate to rough seas are expected with
    these winds. Strong winds will develop over the Windward Passage
    and S of Dominican Republic this weekend as frontal boundaries
    approach from the north. Elsewhere, moderate to fresh trades and
    moderate seas will prevail through the upcoming weekend.

    ...ATLANTIC OCEAN...

    Please read the Special Features section above for details about
    the Significant Swell across the W-central Atlantic.

    A cold front curves southwestward from northeast of Bermuda
    across 31N60W to near Port Pierce, Florida. Scattered showers are
    seen near and up to 100 nm south and east of this feature.
    To the east, convergent southerly winds are aided by modest
    divergent flow aloft to trigger scattered showers and
    thunderstorms near the northeast coast of Hispaniola and N of Puerto
    Rico. To the northeast, scattered moderate convection is noted
    N of 25N between 46W and 56W. Over the far the eastern Atlantic,
    a weakening cold front reaches southwestward from near Madeira
    across 30N16W to near 26N28W. Outside the area mentioned in the
    Special Features section above, gentle to moderate winds and
    moderate seas are noted W o 55W, while fresh to strong winds and
    rough seas prevail E of 55W.

    For the forecast west of 55W, the cold front will reach from
    31N53W to the Windward Passage by Sat morning. Hazardous marine
    conditions near the front will diminish today as it weakens. High
    pressure will follow the front. On Sun, S winds will increase to
    strong speeds offshore north and central Florida, in advance of
    another cold front that will move off the SE U.S. coast on Mon.
    Fresh to strong NE winds and building seas are expected in the
    wake of the front.

    $$
    ERA
    --- SBBSecho 3.28-Linux
    * Origin: Capitol City Online (21:1/175)