000 AXNT20 KNHC 230000 TWDAT Tropical Weather Discussion NWS National Hurricane Center Miami FL 805 PM EDT Mon Oct 22 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 1800 UTC surface analysis and satellite imagery through 2330 UTC. ...TROPICAL WAVES... An tropical wave in the eastern Caribbean is south of 20N along 67W, moving west at 15 kt. Total Precipitable Water imagery shows moderate to high moisture content in the wave environment. Scattered moderate convection is noted inland south of 12N, affecting northern Venezuela. ...MONSOON TROUGH/ITCZ... The monsoon trough extends from the coast of Africa near 11N15W to 07N20W. The ITCZ extends from 07N20W to 07N35W to the coast of South America near 11N65W. Scattered moderate convection is from 07N-13N between 21W-34W, and from 09N-21N between 36W-52W. GULF OF MEXICO... A stationary front extends from the Straits of Florida near 23N80W to the western Gulf of Mexico near 27N96W to a 1015 mb low near 26N96W. Scattered moderate convection is north of 26N west of 89W. Fresh to strong northerly winds are depicted in scatterometer data over the northwest Gulf north of the low and front. Gentle to moderate winds prevail over the remainder of the basin. Expect high pressure W of the front to weaken Tue through early Thu as the front dissipates. A low will develop over Texas Wed night, then drag a new cold front across the Gulf as it moves to the SE United States by Thu night. CARIBBEAN SEA... A tropical wave is within the basin. See the section above for details. The East Pacific monsoon trough extends eastward along 10N from Costa Rica to northern Colombia near 75W. Scattered moderate convection is noted along this trough. Fresh to strong NE winds are forecast to pulse in the Windward Passage and south of Hispaniola tonight. Elsewhere, moderate to fresh trades will continue through early Wed, then diminish by Thu night. A tropical wave over the far eastern Caribbean will slowly move across the eastern Caribbean through Wed and weaken. Gentle to moderate E to SE winds will follow the wave. ATLANTIC OCEAN... A cold front is over the western Atlantic from 32N57W across the Bahamas to the Straits of Florida at 23N80W. Scattered moderate convection is within 45 nm of the front. A large upper level trough over the W Atlantic N of 27N and W of 70W supports the cold front. An upper level low is centered over the central Atlantic near 19N52W. Upper level diffluence is enhancing convection E of the low center. Surface ridging prevails across the remainder of the basin, with generally fair weather. Expect the W Atlantic front to weaken Tue through early Thu allowing for winds to diminish and seas to subside. For additional information please visit http://www.hurricanes.gov/marine $$ Mundell