000 AXNT20 KNHC 300539 TWDAT Tropical Weather Discussion NWS National Hurricane Center Miami FL 0605 UTC Sat Nov 30 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 0000 UTC surface analysis and satellite imagery through 0600 UTC. ...MONSOON TROUGH/ITCZ... The monsoon trough axis enters the Atlantic near 06N11W and continues westward to 06N14W. The ITCZ then continues from 06N14W to 04N50W. Scattered moderate convection is observed from 01N to 06N between the west coast of Africa and 16W, as well as from 04N to 11N between 22W and 44W. GULF OF MEXICO... A cold front extends from near Naples, FL to near Veracruz, Mexico. Fresh to strong NE to N winds prevail north of the cold front, with 6 to 8 ft seas. In the Gulf waters west of 93W, seas have built to 8 to 11 ft in near-gale-force N winds offshore of Tampico, Mexico. South of the cold front, light and variable winds and 2 to 4 ft seas prevail. For the forecast, a cold front extending from southwest Florida to 23N93W and to Veracruz, Mexico will stall from the Straits of Florida to the SW Gulf on Sat and weaken. Fresh to strong northerly winds and building seas will follow this front. Winds to near gale-force, or with brief gusts to gale force, may occur W of the front over the SW Gulf tonight. High pressure building in the wake of the front will shift eastward through Sun night as a trough develops in the far western Gulf. The resulting pressure gradient will support fresh to strong easterly winds and building seas over the waters W of 90W into early next week while at the same time winds increase over the remainder of the Gulf going into the middle of next week, with the passage of a stronger cold front. CARIBBEAN SEA... A 1010 mb low has been analyzed in the western Caribbean near 16N82W, and a 1008 mb low is near 12N81W with a trough extending northward toward central Cuba. Scattered moderate to locally strong convection is occurring in the central Caribbean south of 18N and west of 75W. Moderate to fresh N to NE winds prevail in the NW Caribbean near the areas of low pressure. Elsewhere, moderate E trades and seas of 3 to 5 ft are noted in the central and eastern Caribbean, with locally fresh trades in the southeastern Caribbean. For the forecast, moderate to fresh trades are expected over most of the basin through Sat night. A cold front will move into the NW Caribbean on Sat, with winds strengthening over these waters in the wake of the front toward the end of the weekend. Fresh to strong winds will then cover the majority of the basin going into the middle of next week. ATLANTIC OCEAN... A cold front has been analyzed from 31N75W southwestward through SE Florida. Fresh to locally strong NW winds are occurring behind the front. Elsewhere, the Atlantic is dominated by 1027 mb high pressure centered near 34N44W. Moderate to fresh anticyclonic winds are occurring north of 20N, and moderate to fresh E trades are occurring south of 20N. Seas are 4 to 8 ft in open waters, increasing to 8 to 9 ft in the far eastern Atlantic between Cabo Verde and the Canary Islands, as well as across areas from 04N and 23N between 32W and 55W. For the forecast W of 55W, a cold front extending from 31N74W to the NW Bahamas and to South Florida is forecast to move across the waters through the weekend before becoming stationary from near 31N58W to 26N65W to the Windward Passage by Sun night. Moderate to fresh winds and moderate seas will follow the front. A coastal trough is expected to develop along the NE Florida coast late Sat into Sun, then weaken late on Sun as its shifts E. A reinforcing cold front may move off the Florida coast early on Sun evening, followed by fresh northwest to north winds. It will then merge with the stationary front early next week. The merged front is expected to reach from near 31N55W to the Windward Passage the middle of next week. $$ Adams