Tropical Weather Discussion
Issued by NWS
Issued by NWS
772 AXNT20 KNHC 271711 TWDAT Tropical Weather Discussion NWS National Hurricane Center Miami FL 1815 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 1200 UTC surface analysis and satellite imagery through 1650 UTC. ...MONSOON TROUGH/ITCZ... The ITCZ extends from the coast of Sierra Leone near 08N13W and continues to 06N52W near the coast of French Guiana. Scattered moderate convection is from 06N to 13N between 28W and 48W. Aided by divergent flow aloft, the eastern end of the East Pacific monsoon trough is causing numerous heavy showers and isolated strong thunderstorms over the Caribbean offshore waters of Costa Rica, western Panama and Nicaragua. GULF OF AMERICA... As of 1500 UTC, a cold front extends from Charlotte Harbor, FL, to near Tampico, Mexico. Scattered moderate convection is within 120 nm of both sides of the front. North of the front across the Gulf waters, N winds are fresh to strong, with building 5-8 ft seas. Ahead of the front, moderate or weaker NE winds and 3-5 ft seas are analyzed. For the forecast, the cold front will move SE and is expected to extend from the Florida Straits to near Cabo Rojo, Mexico tonight, 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 and building seas 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, ahead of the next front. This next cold front will emerge off the Texas coast Sat night and meander slowly southeastward across the NW Gulf Sun through Mon. CARIBBEAN SEA... The pressure gradient between the subtropical Atlantic high pressure and lower pressure over the SW Caribbean currently supports strong trade winds in the south central Caribbean off the coast of Colombia. Recently received satellite altimeter data indicates peak seas are to 13 ft. Fresh to strong trades are evident elsewhere in the central and southwestern Caribbean with 8-13 ft seas. Moderate to fresh trades are analyzed in the eastern Caribbean with 4-7 ft seas. In the northwestern Caribbean, gentle to moderate trades prevail with 4-7 ft seas. Scattered moderate convection is affecting the coastal waters of Nicaragua, Costa Rica, and Panama, from 09N to 14N west of 79W. For the forecast, the pressure gradient between strong high pressure over the central Atlantic and lower pressure over the SW Caribbean will sustain strong to near gale-force trades over the SW and much of the central Caribbean, including the Gulf of Venezuela, through Fri morning. Moderate to fresh trades are forecast elsewhere in the eastern and central basin through Sun. A cold front will enter the NW Caribbean on Fri morning, followed by fresh to strong NE winds. The front is expected to stall from central Cuba to the Yucatan Peninsula Fri night, then gradually dissipate over the NW Caribbean on Sat. ATLANTIC OCEAN... In the far NW waters, a cold front extends from 31N76W to Melbourne, FL. Scattered moderate convection is within 120 nm of both sides of the front. Fresh winds are near the frontal boundary. A stationary front in the central Atlantic extends southwestward from 31N38W to 26N50W. Fresh NE winds and 7-9 ft seas are north of the front. North of Hispaniola and on approach to the Windward Passage, E winds are pulsing to fresh speeds. Elsewhere, high pressure prevails across the Atlantic waters. Satellite scatterometer indicates gentle to moderate trades and 4-7 ft seas across the basin. For the forecast west of 55W, the pressure gradient between a 1031 mb high over the central Atlantic and low pressure across the SW Caribbean will sustain fresh E-NE winds south of 22N and in the approach to the Windward Passage through tonight before diminishing on Fri. The cold front near Florida will move southeastward and extend from 31N72W to the Florida Straits tonight, 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 will produce increasing NE winds across much of the forecast area Sat, gradually diminishing from west to east Sun. $$ Mahoney