000 AXNT20 KNHC 220908 TWDAT Tropical Weather Discussion NWS National Hurricane Center Miami FL 1205 UTC Fri Apr 22 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 0600 UTC surface analysis and satellite imagery through 0800 UTC. ...MONSOON TROUGH/ITCZ... The monsoon trough passes through the coastal plains of Africa and offshore near 12N16W to 04N17W. The ITCZ continues from 04N17W to the equator near 20W to northeast of the coast of Brazil near 03N37W. Scattered moderate and isolated strong convection is noted from 03S to 00N between 28W and 33W, from 02N to 06N between 29W and 40W, from 03S to 02N between 38W and 46W, and from 00N to 11N between 46W and 55W. GULF OF MEXICO... A large surface ridge extends across the southeastern United States with E-SE flow dominating the basin, except NE-E in the southeast Gulf. Wind speeds are fresh to strong in the eastern Gulf, and in the south-central Gulf near the north and west coasts of the Yucatan Peninsula, with moderate to fresh speeds elsewhere. Seas are mainly 5 to 7 ft across the basin, locally to 8 ft in the areas of fresh to strong winds. A few showers are evident just north of the Yucatan Peninsula as well as in the southeast Gulf northwest of Cuba, with isolated thunderstorms possible near the Yucatan Channel. Smoke and haze mainly due to agricultural are reducing visibility over the Bay of Campeche and along the coast of Mexico between Veracruz and Tampico. For the forecast, high pressure extending from north of the region will support fresh to strong E-NE winds over the eastern and south-central Gulf through Sat night, including the Straits of Florida and areas near the north and west coasts of the Yucatan Peninsula. The strongest winds should occur early this morning and again tonight. Moderate to fresh E to SE winds will prevail elsewhere. Hazy conditions are possible over the western and central Gulf due to smoke from agricultural fires in Mexico. CARIBBEAN SEA... A pair of surface troughs are noted in the basin, one extending from western Haiti southward to near 13N75W, and another from the coast of Colombia near 11N75W to 12N81W. These troughs are helping to enhance the risk for isolated showers and thunderstorms in their vicinity. High pressure located north of the basin continues to support fresh to strong winds in the NW Caribbean in the Lee of Cuba, with fresh winds through the Windward Passage and also offshore of Haiti. Moderate trades prevail elsewhere, except light to gentle in the SW Caribbean. Seas are 5 to 8 ft in the NW Caribbean, except 4 to 6 ft offshore of Honduras and Belize, with 3 to 5 ft seas elsewhere, except 2 to 4 ft in the SW Caribbean. For the forecast, strong high pressure located north of the region will support fresh to locally strong ENE winds across the NW Caribbean, with pulses of primarily strong ENE winds south of Cuba and in the Windward Passage during the evening hours through early this weekend. Afterward, high pressure over the SE U.S. should sustain moderate to fresh easterly winds Sun through early next week. ATLANTIC OCEAN... A stationary front extends from north of the area through 31N63W to 24N77W. Scattered showers are likely in the vicinity of the front. Fresh to strong NE-E winds are blowing south of 27N and west of the front including through the Bahamas to the Straits of Florida. Seas of 6 to 9 ft in residual and fresh NE swell are found west of the front and northeast of the Bahamas. Farther east, a 1014 mb low pressure area is centered near 24.5N44.5W along with two accompanying surface troughs which curl completely around the low between 150 and 420 nm. Scattered showers are possible near the low and troughs, with thunderstorms possible from 24N to 30N between 30W and 40W. Fresh to strong N-NE winds are noted within 120 nm in the northwest semicircle of the low, with seas estimated to be 8 to 12 ft. Gentle to moderate NE winds and 5 to 7 ft seas are evident elsewhere west of 35W, with locally fresh winds northeast of the Leeward Islands. Farther east, moderate to fresh N-NE winds are noted from 12N to 25N west of Africa to 30W. For the forecast west of 55W, the stationary front will dissipate today as it retreats slowly northward. High pressure located off New England will sustain fresh to strong NE winds and rough seas to the west of a line from Bermuda to the central Bahamas through early this weekend, including the Straits of Florida. Winds and seas will diminish this Sun into early next week. A cold front is expected to enter the NE waters between 55W and 65W on Sun, and extend from 27N55W to 31N66W by early Mon. Strong to near gale force NW winds are likely to the north of the front, along with building seas to the east of 65W. $$ Lewitsky