000 AXNT20 KNHC 120444 TWDAT Tropical Weather Discussion NWS National Hurricane Center Miami FL 0605 UTC Tue Apr 12 2022 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 31N. The following information is based on satellite imagery, weather observations, radar and meteorological analysis. Based on 0000 UTC surface analysis and satellite imagery through 0444 UTC. ...SPECIAL FEATURES... ...Gale warning in the Caribbean Sea... The pressure gradient between high pressure N of the Caribbean Sea and the Colombian low will support fresh to strong trades over the south-central Caribbean into Fri night. Gales will pulse just offshore Colombia at night through Wed night. Seas are forecast to build to 12 ft during the strongest winds. Please read the High Seas forecast at the website: www.nhc.noaa.gov/text/MIAHSFAT2.shtml, or the Offshore Forecast at the website: www.nhc.noaa.gov/text/MIAOFFNT3.shtml, for details. ...MONSOON TROUGH/ITCZ... The monsoon trough reaches the Atlantic through the coast of Guinea near 10N14W and continues to 01S31W. The ITCZ extends from 01S31W to 01S46W. Scattered moderate to isolated strong convection remains active from S of 04N and between 15W and 27W. Similar convection is present near the coast of Brazil S of 02N and W of 45W. ...GULF OF MEXICO... A 1025 mb high pressure system between the SE United States and Bermuda continues to influence the Gulf of Mexico, maintaining fairly tranquil weather conditions over most of the basin. A few showers are observed in the northern portion of the Gulf, but the activity is decreasing. The pressure gradient between the high pressure and lower pressures over the south-central United States and NE Mexico results in fresh to locally strong anticyclonic winds over the Gulf, except for light to gentle breezes N of 26N and E of 85W. A recent scatterometer satellite pass show that the strongest winds are occurring off NW Cuba, northern Yucatan and within 60 nm of the northern Gulf coast. Seas of 5-8 ft are present across the Gulf, except for 2-5 ft in the NE Gulf and E Bay of Campeche. For the forecast, the aforementioned pressure gradient will continue to support fresh to strong southerly winds over the western half of the Gulf through Wed. These winds will expand eastward on Tue as the high pressure E of the area continues to shift eastward. A weak cold front will move off the Texas coast on Wed night, then become stationary over the northern Gulf on Thu. The western part of the front will lift back north as a warm front on Fri, while its remainder remains stationary. ...CARIBBEAN SEA... Please see the Special Features section for information regarding the gale warning off Colombia. A weakening stationary front reaches the Windward Passage, where it becomes a surface trough that continues to near 16N83W. A few weak showers are noted near the surface trough. The rest of the basin is dominated by a subtropical ridge positioned well north of the Caribbean. The pressure gradient between the aforementioned high pressure and lower pressures over NW South America result in fresh to strong trades over the central and NW Caribbean. A recent scatterometer satellite pass and surface observations indicate that the strongest winds are occurring off NW Colombia and the Gulf of Venezuela, Windward Passage and the lee of Cuba. Moderate or weaker trades are noted elsewhere. Seas of 6-9 ft are found in the south- central Caribbean, while seas of 4-7 ft are present elsewhere. For the forecast, the pressure gradient between high pressure N of the Caribbean Sea and the Colombian low will support fresh to strong trades over the south-central Caribbean into Fri night. Gales will pulse just offshore Colombia at night through Wed night. Pulsing fresh to strong northeast winds are expected at night and into the mornings in the lee of Cuba and Windward Passage into Tue night. Fresh to locally strong east to southeast winds will pulse in the Gulf of Honduras at night into Fri night. ...ATLANTIC OCEAN... A cold front enters the tropical Atlantic near 31N50W and continues southwestward to 23N63W, where it transitions into a stationary front that travels into the Windward Passage. Cloudiness and some weaker showers are observed within 120 nm ahead of the frontal boundary, mainly N of 22N. Satellite-derived data show that fresh to strong N-NE winds are found behind the frontal boundary, primarily S of 26N and W of 65W. The strongest winds are present S of 23N, including at the entrance of the Windward Passage, and N of 29N and E of 64W. NW swell is producing seas of 8-14 ft between the front and 69W and N of 25N. The remainder of the basin is dominated by a 1023 mb high pressure system near 30N33W, maintaining fairly tranquil weather conditions across the central and eastern tropical Atlantic. Northerly swell is producing a large region of 8-13 ft seas, mainly N of 15N and E of 45W. Seas greater than 12 ft are occurring near and north of the Canary Islands. Moderate to locally fresh anticyclonic winds and seas of 5-8 ft prevail elsewhere in the tropical Atlantic. For the forecast west of 65W, a cold front extending from 31N50W to just N of Hispaniola will gradually move east through tonight, then stall along 21N, E of 60W into late week. Fresh to strong NW winds will continue N of 28N and E of 70W through tonight, while fresh to strong NE winds will prevail within 150 nm N of the front into late week. Locally strong E winds may pulse at times N of Hispaniola through the week. Seas of 12-15 ft will continue to propagate across the NE forecast waters in the wake of the front through Tue night. High pressure will follow the front, and will remain in control of the weather pattern across the region through Fri. A weak cold front will move off the southeastern U.S. coast Fri and become stationary Fri night. $$ DELGADO