000 AXNT20 KNHC 202204 TWDAT Tropical Weather Discussion NWS National Hurricane Center Miami FL 0005 UTC Fri Nov 20 2020 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 1800 UTC surface analysis and satellite imagery through 2200 UTC. ...TROPICAL WAVES... An Atlantic Ocean tropical wave has an axis near 58W from 17N southward, moving westward at 10-15 kt. Isolated convection is noted near the wave axis in northern Guyana. A central Caribbean Sea tropical wave has an axis near 72W from 19N southward, moving westward at 10-15 kt. Scattered showers are noted from 14N to 17N between 69W and 73W. A Caribbean Sea tropical wave has an axis near 85W from 22N southward, moving westward at 10 to 15 kt. Scattered moderate convection is noted from 09N to 19N between 80W and 87W. ...MONSOON TROUGH/ITCZ The monsoon trough extends from 10N14W to 08N22W. The ITCZ continues from 08N22W to 00N48W. Scattered moderate convection is noted along the monsoon trough and ITCZ from 02N to 10N between 30W and 50W. GULF OF MEXICO... High pressure prevails over the SE United States near 34N83W. A trough is noted in the southwestern Gulf from 24N97W to 18N95W. Scattered showers and thunderstorms are noted within 80 nm of the trough. Otherwise, no significant convection is noted across the rest of the basin. Fresh to strong winds prevail over the southeast Gulf, with moderate to fresh winds across the rest of the Gulf. Seas are in the 6-8 ft in the SE Gulf, and 5-7 ft elsewhere. Winds and seas associated with a now-dissipated stationary front near the Yucatan Channel will continue to diminish tonight over the southern Gulf and Straits of Florida. A weak cold front will move through mainly the NE Gulf late Sun into Mon. CARIBBEAN SEA... See the Tropical Waves section for information on the two tropical waves moving across the basin and the convection associated with them. fresh to strong winds prevail in the NW Caribbean, including the the Yucatan Passage. Moderate to fresh winds are noted across the eastern and central Caribbean. Light to gentle winds are observed in the SW Caribbean and the Gulf of Honduras. Seas are in the 3 to 7 ft range across the eastern and central Caribbean, and 8-12 ft in the NW Caribbean. High pressure north of the area is supporting fresh to strong winds and large seas in the northwest Caribbean. Winds and seas will gradually diminish through Sat as the high pressure weakens. Large northerly swell will impact the Atlantic waters east of the Leeward Islands into Mon. ATLANTIC OCEAN... A stationary front lingers across the western and central Atlantic from 32N47W to E Cuba. Scattered moderate convection is within 180 nm of the front. Fresh to strong NE winds prevail west of the front. Gentle to moderate easterly winds are noted east of the front and north of 20N. Moderate to fresh winds prevail south of 20N. Seas are in the 8-11 ft range over the open waters west of the front, 6-8 ft east of the front N of 20N, and 8 to 10 ft south of 20N. The stationary front will dissipate tonight. High pressure north of the front will support fresh to strong NE to E winds across most the region through tonight. A trough is expected to form east of the Bahamas this weekend, and may become a weak low pressure area by early next week. A weak cold front will move into the NW waters Mon. $$ AL