000 AXNT20 KNHC 232340 TWDAT Tropical Weather Discussion NWS National Hurricane Center Miami FL 640 PM EST Wed Jan 23 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 1800 UTC surface analysis and satellite imagery through 2230 UTC. ...SPECIAL FEATURES... ...Gale Warning in the Gulf of Mexico... As of 23/2100 UTC, a cold front extends from southern Mississippi to the southwestern Gulf near 18N93.5W. Gale- force NW to N winds continue S of 26N west of the front. These winds will prevail until 1200 UTC Thu before diminishing below gale-force. For additional information, please read the High Seas Forecast product under the AWIPS/WMO headers HSFAT2/FZNT02 KNHC. ...Gale Warning in the South-Central Caribbean... Strong high pressure north of the area will maintain strong NE winds over much of the Caribbean through Thu night, with gale- force winds expected near the coast of Colombia through Thu morning, then again Thu night. For additional information, please read the High Seas Forecast product under the AWIPS/WMO headers HSFAT2/FZNT02 KNHC. ...Gale Warnings in the SW N Atlantic... A cold front will move off the Florida coast into the SW N Atlantic on Thu. Strong SW winds ahead of the front are forecast to increase to gale- force Thu morning through Thu evening N of 29N E of the front to 74W. The winds will decrease to below gale- force by 0000 UTC Fri. For additional information, please read the High Seas Forecast product under the AWIPS/WMO headers HSFAT2/FZNT02 KNHC. ...Gale Winds Expected Near the Coast of Morocco... Meteo France is forecasting ongoing gale-force winds tonight near the coast of Morocco in the marine zone AGADIR. The gale may continue into the day on Thu. For additional information, please visit the Meteo France website at http://www.meteofrance.com/previsions- meteo- marine/bulletin/grandlarge/metarea2. ...MONSOON TROUGH/ITCZ... The monsoon trough emerges from the coast of Liberia in western Africa near 05N09W and extends to 02N17W. The ITCZ continues from that point to 02N35W to the coast of Brazil near 02N50W. Scattered moderate convection is from 02N to 05N between 30W and 37W, and from 01N to 04N between 20W and 27W. GULF OF MEXICO... A 1036 mb surface high is centered over the northeast Atlantic with a ridge axis extending southwestward over Florida into the eastern Gulf of Mexico. A strengthening low pressure system is over the Mississippi Valley dragging a cold front over the Gulf. This front as of 2100 UTC extended from southern Mississippi to the southwestern Gulf near 18N93.5W. Gale-force winds are currently ongoing behind the front over a portion of the western Gulf. Refer to the special features section for more details on this gale. Strong to near gale-force winds cover the remainder of the Gulf. Numerous showers and thunderstorms are organized in a line within 150 nm E of the front N of 25N. A cluster of showers and scattered thunderstorms extends from 24N to 26N between 84W and 88W. The cold front will continue to move across the Gulf waters tonight, shifting E of the area Thu. Winds and seas will diminish across the Gulf Thu as the front moves southeast of the region. Winds and seas will increase Sat into Sun over the southern Gulf as another frontal boundary moves through the basin. CARIBBEAN SEA... Strong 1036 mb high pressure north of the area is inducing widespread fresh to strong trade winds over most of the Caribbean Sea. Earlier scatterometer data showed gale-force winds near the coast of Colombia. Expect for these winds to prevail through Thu night, with gale-force winds pulsing off of Colombia's coast. Refer to the special features section for more details on this gale. Expect seas well over 8 feet for much of the central Caribbean through Thu night, highest over the south-central Caribbean, where 10-15 ft seas are expected. Winds and seas will diminish late in the week as the high pressure shifts east ahead of another cold front. This cold front is expected to move into the northwest Caribbean by late Thu. The front will stall and dissipate from central Cuba to the Gulf of Honduras by late Fri. ATLANTIC OCEAN... Surface ridging prevails across the west Atlc. To the east, a cold front extends from 31N42W to 24N49W to 20N60W. It continues as a stationary front from 20N60W to 19N69W. Scattered moderate convection is N of 25N between 36W and 45W. Surface ridging extending from high pressure N of the Azores prevails across the eastern Atlantic. The cold front over the central Atlantic will weaken late this week. High pressure building in the wake of the front will maintain fresh to strong winds over the central Atlc waters through late Thu. High pressure over the western Atlc will shift eastward ahead of a cold front moving off the coast of Florida Thu. Southerly gale force winds will prevail N of 29N E of the front Thu. Refer to the special features section for more details on this gale. This front will stall and dissipate from Bermuda to eastern Cuba by Sat. A weak reinforcing front will move off northeast Florida by late Sat, and reach from Bermuda to the Straits of Florida by late Sun. For additional information please visit http://www.hurricanes.gov/marine $$ Latto