000 AXNT20 KNHC 252046 TWDAT Tropical Weather Discussion NWS National Hurricane Center Miami FL 0015 UTC Thu Dec 26 2024 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 1800 UTC surface analysis and satellite imagery through 2030 UTC. ...MONSOON TROUGH/ITCZ... The monsoon trough enters the Atlantic through the coast of Africa near 07N11W and continues westward to 04N18W. The ITCZ continues from 04N18W to 01N45W. Scattered moderate convection is noted from 01N to 07N and between 12W and 23W. ...GULF OF MEXICO... Gentle to moderate winds, and seas of 2-5 ft prevail across the Gulf of Mexico. For the forecast, high pressure centered over the eastern United States will maintain mostly moderate southeast winds and slight to moderate seas through early Fri, then winds may increase some late Fri into Sat over the eastern Gulf as high pressure builds southward from the southeastern United States, and a weak cold front approaches eastern Texas. Relatively calm conditions are expected Sun and Sun night as the weak cold front moves across the Gulf, followed by weak high pressure that becomes established over the NW Gulf at that time. Fresh southerly winds are expected to become established in the western Gulf Mon and Mon night in response to a frontal system that approaches E Texas. ...CARIBBEAN SEA... Moderate to fresh winds prevail across the central Caribbean. Gentle to moderate winds are elsewhere across the Caribbean waters. Seas are in the 5-7 ft range in the central Caribbean, and 4-5 ft elsewhere. For the forecast, the pressure gradient between high pressure to the north and low pressure to the south will allow for moderate to fresh trades across the basin through tonight, with pulsing fresh to strong winds offshore Colombia. Winds will then diminish only slightly starting Thu and into early next week. ...ATLANTIC OCEAN... A cold front extends from 31N71W southwestward to 28N73W, where it transitions to a weakening stationary front to 27N77W. Farther east, a 1021 mb high is centered near 32N53W, with a ridge extending SW to near 28N69W. Light to gentle winds are in the vicinity of the high and ridge. Gentle to moderate winds are elsewhere W of 50W. A cold front enters the waters near 31N38W and extends to 23N52W. The pressure gradient between the front and the area of high pressure is supporting fresh to strong winds W of the front and N of 28N. Seas are in the 8-12 ft range over these waters. Gentle to moderate winds are elsewhere W of the front to 50W. Gentle to moderate winds prevail elsewhere across the discussion waters. Seas of 4-8 ft prevail elsewhere across the discussion waters. For the forecast W of 55W, the cold front will reach from near 31N69W to 28N75W by late Thu night, at which time a stronger cold front is expected to be just to its north. This front will quickly push southward reaching from near 31N57W to central Florida by Thu evening, and from near 28N55W to the southeastern waters by Fri evening with its southern portion weakening through late Sat and while the rest of the front moves well to the E of 55W. Fresh to strong northerly winds and large N swell are expected to follow in behind the front on Fri mainly E of about 70W. On Mon and Mon night these winds will be affecting the northeast part of the area, however, rough seas are expected to cover a good portion of the eastern half of the area. $$ AL