000 AXNT20 KNHC 012318 TWDAT Tropical Weather Discussion NWS National Hurricane Center Miami FL 705 PM EST Wed Feb 01 2017 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 2315 UTC. ...ITCZ/MONSOON TROUGH... The Monsoon Trough extends from the African coast near 08N13W to 03N18W. The Intertropical Convergence Zone extends from 03N18W to the Equator near 40W to the coast of South America near 02S45W. Isolated scattered moderate convection is from 00N-04N between 06W-39W. ...DISCUSSION... GULF OF MEXICO... As of 2100 UTC a 1022 mb high is centered over central Florida near 29N83W with 5-10 anticyclonic winds and fair weather. The W Gulf has a slightly tighter surface pressure gradient resulting in 10-15 kt SE flow. In the upper levels, WSW flow is over the Gulf. An area of upper level moisture is over the SE Gulf. The remainder of the Gulf has strong subsidence. Expect in 24 hours for the surface high to drift NW to the NE Gulf. 5-15 kt anticyclonic flow will then cover the entire Gulf. Scattered showers will be possible over the southern Bay of Campeche, while, fair weather will persist elsewhere. CARIBBEAN SEA... 15-30 kt tradewinds are over the Caribbean with strongest winds along the coast of Colombia. Scattered showers are over Honduras, the Gulf of Honduras, Guatemala, and Belize. Similar showers are over Costa Rica. More scattered showers are over Hispaniola, the Leeward Islands, and the Windward Islands. In the upper levels, zonal flow is over the Caribbean with very strong subsidence. Expect little change over the next 24 hours. ...HISPANIOLA... Presently scattered showers are over Hispaniola mostly due to moisture in the tradewind flow. Expect little change over the next 24 hours. ATLANTIC OCEAN... A 1025 mb high is over the W Atlantic near 30N62W. A stationary front is over the central Atlantic from 31N53W to 25N70W to the S Bahamas near 22N74W. Scattered showers are within 90 nm of the front. A 1030 mb high is over the E Atlantic near 29N38W. In the upper levels, the central Atlantic cold front is losing upper level support, and is thus forecast over the next 24 hours to dissipate. A surface trough will remain over the central Atlantic from 31N61W to 27N70W to 25N74W with scattered showers. For additional information please visit http://www.hurricanes.gov/marine $$ Formosa