000 AXNT20 KNHC 201740 TWDAT Tropical Weather Discussion NWS National Hurricane Center Miami FL 139 PM EDT Sat Apr 20 2019 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 1200 UTC surface analysis and satellite imagery through 1715 UTC. ...SPECIAL FEATURES... ...Atlantic Gale Warning... A cold front extends from 31N76W to 23N81W. Expect westerly gale- force winds, and sea heights ranging from 12 ft to 14 ft, north of 29N and within 90 nm east of the front. These conditions will continue through 18Z today. Please read the Atlantic High Seas Forecast at the website https://www.nhc.noaa.gov/text/MIAHSFAT2.shtml, for more details. ...MONSOON TROUGH/ITCZ... The monsoon trough passes through the coastal sections of Guinea near 15N17W to 04N23W. The ITCZ continues from 04N23W to 04S38W. Scattered moderate convection is noted south of 02N and west of 20W. GULF OF MEXICO... The cold front extends across the Florida Straits with scattered showers. Surface ridging and fair weather prevails across the remainder of the basin, anchored by a 1020 mb high centered near 25N95W. High pressure will continue building across the western Gulf in the wake of the front. Residual seas over the eastern Gulf will subside through tonight. The high pressure will shift east through Sunday, allowing fresh SE return flow over the western Gulf through early next week. CARIBBEAN SEA... A stationary front extends across the west Caribbean from 22N81W to 16N87W with scattered showers. Surface ridging prevails across the remainder of the basin, anchored by a 1035 mb high centered over the north-central Atlantic. Scatterometer data depicts moderate to fresh northerly winds to the west of the front, while moderate to fresh easterly winds prevail over the south-central Caribbean mainly north of Colombia. The stationary front will dissipate Sun. Moderate to fresh trade winds will prevail across the Caribbean, with the exception of strong breeze NE winds N of Colombia. Trades will slowly diminish through mid-week. ATLANTIC OCEAN... Refer to the Special Features section above for details about the Gale Warning currently in effect for the west Atlantic. A cold front extends across the west Atlantic from 31N76W to 23N81W. A squall line extends from 30N76W to 25N78W. Scattered to numerous moderate convection prevails within these features mainly north of 24N and west of 74W. To the east, another cold front extends over the central Atlantic from 31N36W to 25N40W to 22N48W, then becomes stationary to 24N61W. A surface trough extends west of the front from 31N39W to 28N47W. Scattered showers prevail along the trough and front mainly north of 28N between 34W-41W, and at the end of the stationary front between 57W-61W. Surface ridging prevails elsewhere. The front will reach from near 31N71W to the SE Bahamas Sunday afternoon where it will stall and gradually dissipate. NE swell will move into the waters north of the Virgin Islands through early next week. The energy related to the front in the central Atlantic will induce the formation of a surface low that will develop by Sunday morning. For additional information please visit http://www.hurricanes.gov/marine $$ ERA