000 AXNT20 KNHC 030537 TWDAT Tropical Weather Discussion NWS National Hurricane Center Miami FL 1237 AM EST Tue Dec 3 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 0000 UTC surface analysis and satellite imagery through 0520 UTC. ...SPECIAL FEATURES... ...Atlantic Ocean Gale Warning... A cold front passes through 32N68W, to the Bahamas near 26N78W just to the north of Andros Island, to NW Cuba. The front becomes stationary from NW Cuba to 20N94W in the SW corner of the Gulf of Mexico, and into the Isthmus of Tehuantepec of southern Mexico. A surface trough is along 29N69W 26N72W, to 22N74W in the Bahamas. Expect SW to W gale-force winds, and sea heights ranging from 14 feet to 18 feet, within 30N68W to 30N69W to 30N70W to 31N69W to 31N68W to 30N68W. Please read the HIGH SEAS FORECAST... MIAHSFAT2/FZNT02 KNHC...and the OFFSHORE FORECAST... MIAOFFNT3/FZNT23 KNHC...for more details. ...MONSOON TROUGH/ITCZ... The monsoon trough passes through the coast of Liberia near 06N11W to 05N16W. The ITCZ continues from 05N16W, to 01N40W, and curving to the coast of Brazil along 50W, from the Equator to 01N. Precipitation: Isolated to widely scattered moderate and locally strong within 180 nm to the north of the ITCZ between 20W and 50W. Isolated moderate from 05N southward from 15N eastward. Isolated moderate also from 08N to 12N between 57W and 64W. GULF OF MEXICO... A cold front is in the Atlantic Ocean. The front becomes stationary from NW Cuba to 20N94W in the SW corner of the Gulf of Mexico, and into the Isthmus of Tehuantepec of southern Mexico. Broken to overcast multilayered clouds are from 24N southward from 90W westward. Broad upper level anticyclonic wind flow spans Mexico. Upper level cyclonic wind flow, that has been supporting the Atlantic Ocean-to-SW Gulf of Mexico cold front, has been moving eastward and out of the Gulf of Mexico. The upper level cyclonic wind flow, with a trough, now covers the Atlantic Ocean and the Bahamas between 60W and 80W. The current frontal boundary will move to the south of the Gulf of Mexico by Tuesday morning. High pressure will build into the area behind the front, in the central Gulf of Mexico on Tuesday and Wednesday. The cold front will shift to the east of the area on Thursday, ahead of the next cold front that is forecast to enter the NW Gulf of Mexico on Friday. CARIBBEAN SEA... Broad upper level cyclonic wind flow covers the area between the Mona Passage and NW Cuba. Precipitation: isolated moderate from 15N northward between 60W and 80W, and from 17N southward between 80W and the coast of Central America. A front becomes stationary from NW Cuba to 20N94W in the SW corner of the Gulf of Mexico, and into the Isthmus of Tehuantepec of southern Mexico. A large low pressure system, that is moving eastward and away from the U.S.A. east coast, has weakened the Bermuda High that is to the north of the basin. E tradewinds are weaker than usual. The high pressure will develop again by Friday, enhancing the trade winds. Large N swell is dominating the Atlantic Ocean, passing through the passages into the NE Caribbean Sea today. This swell will diminish gradually during the next couple of days. A cold front will enter the NW Caribbean Sea tonight. The front will weaken and dissipate, as it moves southeastward, and reaches from eastern Cuba to northeast Nicaragua by Wednesday. ATLANTIC OCEAN... A cold front passes through 32N68W, to the Bahamas near 26N78W just to the north of Andros Island, to NW Cuba. The front becomes stationary from NW Cuba to 20N94W in the SW corner of the Gulf of Mexico, and into the Isthmus of Tehuantepec of southern Mexico. A surface trough is along 29N69W 26N72W, to 22N74W in the Bahamas. Expect SW to W gale-force winds, and sea heights ranging from 14 feet to 18 feet, within 30N68W to 30N69W to 30N70W to 31N69W to 31N68W to 30N68W. Please read the HIGH SEAS FORECAST... MIAHSFAT2/FZNT02 KNHC...and the OFFSHORE FORECAST... MIAOFFNT3/FZNT23 KNHC...for more details. Precipitation: widely scattered moderate to isolated strong is within 210 nm to the east of the cold front from 30N northward. Isolated moderate elsewhere from 20N northward between 60W and the cold front. A cold front passes through 32N33W to 27N41W. Precipitation: rainshowers are possible within 100 nm on either side of the front from 27N to 30N. Earlier precipitation, that was occurring from 30N northward, has weakened and dissipated. Isolated moderate from 24N to 25N between 49W and 50W. The current cold front that will reach from 27N65W to eastern Cuba on Tuesday afternoon, and then dissipate by Wednesday afternoon. Winds to gale force, accompanying the front in the waters that are to the north of 28N, will diminish on Tuesday morning. Large, long-period N swell, spreading southward across the Atlantic Ocean, will subside on Tuesday. A second cold front will move quickly across the N waters on Wednesday and Thursday. A surface ridge will develop behind the cold front, from Thursday through Saturday. $$ MT