000 AXNT20 KNHC 061750 TWDAT Tropical Weather Discussion NWS National Hurricane Center Miami FL 1805 UTC Sun Feb 6 2022 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 1200 UTC surface analysis and satellite imagery through 1715 UTC. ...SPECIAL FEATURES... Gulf of Mexico Gale Warning: A cold front will form over the northern Gulf late tonight into early Mon, between high pressure west of the area and low pressure moving from the east coast of Florida toward the Carolina coast. The gradient will be tight enough to support near-gale to gale force winds Mon night into Tue over the western Gulf off the coast of Mexico, from Tampico to Veracruz. Seas may build as high as 16 ft off Veracruz by Tue morning. Winds and seas will subside through mid week as the low pressure lifts farther to the north and high pressure builds over the area. ...MONSOON TROUGH/ITCZ... The monsoon trough remains inland over western Africa. The ITCZ extends from the coast of Sierra Leone near 08N13W to 03N30W to 00N48W. Scattered moderate convection is noted south of the ITCZ to 01N between the west coast of Africa and 20W. Scattered moderate convection is also from 01N to 03N between 23W and 30W. Farther west, scattered moderate convection is within 120 nm of the ITCZ between 41W and the coast of Brazil. ...GULF OF MEXICO... Please read the SPECIAL FEATURES section above for information on a Gale Warning. A dissipating stationary front is lingering from near Key West, Florida to The Yucatan channel. A recent scatterometer satellite pass indicates mainly moderate return flow over the Gulf, except for the SW Gulf south of 24N, including the Yucatan Channel and Bay of Campeche, where winds are moderate to fresh. Seas range from 1 to 3 ft north of 27N, 4 to 6 ft from 23N to 27N, and mainly 6 to 8 ft south of 23N. For the forecast, the stationary front will meander and dissipate tonight. Large seas over the south-central and southeast Gulf will diminish today as high pressure builds over the region. Another cold front will develop over the northern Gulf late today or tonight and move across the basin through Tue, bringing another round of winds to gale force to the west-central and southwest Gulf Mon night and Tue. Winds and seas will diminish across the basin mid week as high pressure again builds over the area. ...CARIBBEAN SEA... Divergent flow aloft related to an upper low centered over the eastern Caribbean Sea is supporting scattered showers and a few thunderstorms across the Virgin Islands and Puerto Rico. Rainfall amounts of 7 to 11 inches have fallen over portions of Puerto Rico, just to the west of San Jan during the 24 hr period from 1200 UTC Sat Feb 5 to 1200 UTC Sun Feb 6. There is ample low level moisture still in place across the islands, related to a shear line extending over the region. The area of high moisture will migrate westward, ehancing the chances of heavy rainfall of the Dominican Republic through the next couple of days. A recent scatterometer satellite pass revealed mainly moderate trades in the eastern and western Caribbean due to a weakening pressure gradient between higher pressure centered in the W Atl and lower pressures over Colombia. Meanwhile, winds in the central Caribbean are moderate to fresh, with fresh NE winds noted in the Mona Passage, south of Hispaniola, and within the Windward Passage. Fresh to strong NE winds are also noted to be pulsing within 90 nm of Colombia. Seas continue to range from 6 to 8 ft over most of the basin, reaching heights of 9 ft within the Yucatan Channel and offshore Colombia. For the forecast, the weakening high pressure just S of Bermuda will support pulses of fresh to strong winds near the coast of Colombia, south of Hispaniola, and in the Windward passage through tonight. Large NE swell dominating the Atlantic waters of the Leeward Islands will gradually diminish through tonight. Looking ahead, a weak cold front will move into the Yucatan Channel late Tue then stall over the far northwest Caribbean Wed and Thu. ...ATLANTIC OCEAN... A 1019 mb low pressure center has formed off northeast Florida, lifting a warm front along 29N. A cold front extends from just S of Bermuda to 31N66W then becomes stationary and connects to the aforementioned warm front. An area of scattered showers and thunderstorms is north of the warm front between 75W and 78W. A recent scatterometer satellite pass revealed fresh to strong southerly winds south of the warm front and strong NE winds northwest of the low pressure center. Seas in the western Atl north of 27N and west of 70W are 8 to 12 ft in NE swell. A 1022 mb high pressure is centered south of the cold front. Farther east, a broad deep-layer low is centered near 28N46W, with an estimated pressure of 1013 mb. A scatterometer pass from earlier found fresh N winds in the northwest quadrant of the low and fresh to strong SE winds in the northeast quadrant, north of 29N. A band of moderate to fresh NE winds persists between the low pressure and the 1022 mb high to the west affecting the Leeward Islands, Puerto Rico, and Hispaniola, with 7 to 8 ft seas in NE swell. Farther east, fresh to strong NE winds are evident north of the Canary Islands, with 8 to 10 ft seas. Moderate to fresh trade winds and 6 to 8 ft seas are noted south of 15N over the deep tropics. For the forecast west of 65W, The low will lift northward this afternoon and tonight and drag the western portion of the front north of the area on Mon. Another cold front will follow off the northeast Florida coast late Mon, then stall and dissipate from Bermuda to the northern Bahamas through mid week. $$ Mora