000 AXNT20 KNHC 261756 TWDAT Tropical Weather Discussion NWS National Hurricane Center Miami FL 1256 PM EST Mon Nov 26 2018 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 32N. The following information is based on satellite imagery, weather observations, radar and meteorological analysis. Based on 1200 UTC surface analysis and satellite imagery through 1715 UTC. ...SPECIAL FEATURES... ...Gale Warning for Atlantic Waters... A cold front is over the central Atlantic from 31N46W to 20N62W. SW gale force winds are N of 29.5N within 240 nm E of front. Seas are SEAS 9-15 FT. Expect gale conditions to persist until 26/2100. Please refer to the latest High Seas Forecast issued under the AWIPS/WMO headers HSFAT2/FZNT02 KNHC for more information. ...Gale Warning for Atlantic Waters Forecast... A cold front presently over S Georgia and N Florida is forecast to extend over the W Atlantic from 31N67W to 21N77W on 28/0900 UTC. Gale force W winds are forecast N of 30N between 72W-75W with seas 12-14 ft. Please refer to the latest High Seas Forecast issued under the AWIPS/WMO headers HSFAT2/FZNT02 KNHC for more information. ...Gale Warning in the Western Gulf of Mexico... As of 26/1500 UTC, a cold front extends from N Florida near 31N83W to the central Gulf of Mexico near 25N90W to 22N94W to the Bay of Campeche near 18N94W. NW Gale force winds are S of 24N W of 95W with seas 12-17 FT. Expect gale conditions to persist until 27/0600. Please refer to the latest High Seas Forecast issued under the AWIPS/WMO headers HSFAT2/FZNT02 KNHC for more information. ...MONSOON TROUGH/ITCZ... The monsoon trough extends from W Africa near 08N13W to 04N18W. The ITCZ continues from that point to 03N35W to 05N46W to South America near 04N51W. Scattered moderate convection is from 03N-05N between 14W-19W, and from 03N-07N between 46W-51W. GULF OF MEXICO... A N mexico 1032 mb high is centered near 28N101W. A cold front extends from N Florida to the Bay of Campeche. Scattered moderate convection is over the NE Gulf of Mexico from 27N-30N between 80W- 90W. See above about the Gulf of Mexico Gale. 10-20 kt S winds are E of the front. In the upper levels, an upper level trough is over the NW Gulf supporting the cold front. The Gulf cold front will move SE of the gulf waters this evening accompanied by scattered tstms. Gale force northwesterly winds will persist across the far SW waters along the coast of Mexico until 27/0600 UTC. A fresh breeze is forecast across the E gulf on Tue night, with a ridge gradually setting up from the Florida Panhandle to central Mexico by late Wed. Fresh E to SE return flow expected across most of the Gulf of Mexico on Wed night, becoming a strong southerly breeze over the northern waters on Fri ahead of a cold front moving off the Texas coast late Fri night. CARIBBEAN SEA... 15-25 kt tradewinds are over the Caribbean Sea with strongest winds along the coast of N Colombia. Scattered showers are noted along the coast of NE Honduras. Similar showers are over the SW Caribbean S of 12N. The remainder of the Caribbean has mostly fair weather mostly due to upper level ridging with strong subsidence. Seas to 8 ft currently across the tropical waters E of the Windwards will gradually subside through Tue night. Fresh to locally strong nocturnal trades are forecast along the N coast of Colombia through the remainder of the week. A cold front will move into the Yucatan Basin late tonight and weaken from the Windward Passage to Belize late Tue night, with remnants of the front lifting N across the NW Caribbean on Thu night and Fri. ATLANTIC OCEAN... Please refer to the Special Features section above for information on the Gale Warning in effect for the west/central Atlantic. Scattered moderate convection is off the coast of N Florida due to an approaching cold front. A 1018 mb high is centered over the W Atlantic near 26N67W. A cold front over the central Atlantic extends S to the Leeward Islands. Widely scattered moderate convection is within 240 nm E of front N of 23N. A Gale is N of 29.5N within 240 nm E of front. A 1023 mb high is centered over the E Atlantic near 27N27W. Of note in the upper levels, an upper level trough is over the central Atlantic supporting the surface front. Upper level diffluence is E of the trough axis with convection. The W Atlantic surface high will shift E of 55W by late Tue, with the ridge retracting E to central Cuba. A cold front will move off the NE Florida coast this afternoon with fresh to locally strong SW flow forecast N of 27N within 600 nm E of the front. For additional information please visit http://www.hurricanes.gov/marine $$ Formosa