Tropical Weather Discussion
Issued by NWS
Issued by NWS
503 AXNT20 KNHC 262109 TWDAT Tropical Weather Discussion NWS National Hurricane Center Miami FL 0015 UTC Thu Nov 27 2025 Tropical Weather Discussion for North America, Central America Gulf of America, 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 2000 UTC. ...MONSOON TROUGH/ITCZ... A monsoon trough extends from near 10N13W to 09N15W. The ITCZ extends from 09N15W to 06.5N24W to 09.5N37W to near the far northern coast of Brazil at 04N50W. Scattered moderate convection is present from 02.5N to 08.5N between 11W and 34W. The eastern end of the East Pacific monsoon trough extending from just south of Panama is causing scattered showers and isolated thunderstorms over the Caribbean waters near southern Nicaragua, Costa Rica and western Panama. ...GULF OF AMERICA... A cold front extends from northern Florida to far NE Mexico just south of Brownsville, Texas. A prefrontal trough located about 90-210 nm ahead of the front, and the front itself are supporting numerous moderate convection over the area. A surface trough across the Bay of Campeche is supporting a cluster of moderate convection. Fresh to strong NE winds are found behind the front with 5-8 ft seas, highest in the central and southern Texas coastal waters. Elsewhere, gentle to locally moderate winds and 1-3 ft seas prevail. For the forecast, the cold front will move SE and is expected to extend from near Tampa to Tampico Thu morning, from the Florida Straits to near Cabo Rojo, Mexico Thu night, and then exit the Gulf to the southeast by Fri morning. Scattered showers and thunderstorms will continue along and ahead of the cold front. Fresh to strong NE winds will follow in the wake of the cold front, with conditions improving Fri night through Sat. Fresh to strong return flow will set up in the NW Gulf Fri night and Sat. Looking ahead, the next cold front will emerge from the Texas coast Sat night and meander slowly southeastward across the NW Gulf Sun through Mon. ...CARIBBEAN SEA... Other than the convection mentioned above in the SW Caribbean, scattered showers are noted in the SE Caribbean due to mid-to- upper level support. A tight pressure gradient between the Bermuda-Azores High and lower pressures over NW Colombia/SW Caribbean Sea is forcing fresh to strong trades and seas of 8-12 ft across most of the central Caribbean between 68W and 83W, near gale offshore northern Colombia. Trades are moderate to fresh in the eastern Caribbean along with seas of 6-7 ft. Mainly moderate trades and 4-6 ft seas are in the NW Caribbean and elsewhere. For the forecast, the pressure gradient between the Bermuda High and lower pressure over NW Colombia will sustain fresh to strong trades across all but NW portions of the basin through Thu morning, with locally near gale winds off Colombia, then gradually diminishing winds and seas through Fri afternoon as the high shifts eastward. A cold front will slowly enter the NW Caribbean on Fri, followed by fresh to strong NE winds. The front should stall from central Cuba to the southern Yucatan Peninsula by Sat morning, then gradually wash out over the NW Caribbean by Sat evening, with conditions improving during the remainder of the weekend. ...ATLANTIC OCEAN... A cold front extends from north of the area near the Azores to 1018 mb low pressure near 33.5N35.5W through 31N38W to 25.5N59W with fresh to strong NE winds and 7-11 ft seas behind the front. Widely scattered showers and an isolated thunderstorm or two are possible north of 28N just ahead of the front. Moderate to fresh trades are noted from 18N to 25N between about 50W and the Bahamas with 1029 mb high pressure northwest of Bermuda controlling much of the basin in the wake of the front. Another cold front is approaching the Georgia coast with some associated scattered showers just ahead of it now entering the waters offshore northern Florida. Winds are mainly moderate or weaker across the remainder of the basin, along with 4-7 ft seas, except 2-4 ft north of 27N and west of 77W. Also, fresh to strong winds and 7-9 ft seas are noted offshore of northern Africa and to the north-northeast of the Canary Islands due to a locally tight pressure gradient. For the forecast west of 55W, fresh NE winds along the front east of 65W will diminish through Thu morning, as the front dissipates. A 1030 mb Bermuda High to the north of the front will help to sustain fresh to strong E-NE winds south of 23N and in the approach to the Windward Passage through tonight before diminishing on Thu. A new cold front will emerge off of the NE Florida coast tonight, bringing with it fresh to locally strong N to NE winds behind the front. The cold front will extend from 31N72W to the Florida Straits Thu night, from 31N63W through the central Bahamas by Fri night, and then dissipate from 31N59W the NW Bahamas by Sun morning. A tight pressure gradient in the wake of the front is forecast to bring increasing NE winds across much of the forecast area Sat, gradually diminishing from west to east Sun. $$ Lewitsky