####018006973#### AXNT20 KNHC 020922 TWDAT Tropical Weather Discussion NWS National Hurricane Center Miami FL 1215 UTC Fri May 2 2025 Tropical Weather Discussion for North America, Central America Gulf of America, 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 0700 UTC. ...MONSOON TROUGH/ITCZ... The monsoon trough axis enters the Atlantic near 08.5N13W and continues southwestward to 04N26.5W. The ITCZ extends from 04N26.5W to east of Brazil near 00N46W. Widely scattered moderate convection is noted from 02N to 08N between the coast of Africa and 25W. ...GULF OF AMERICA... Recent ASCAT scatterometer data showed fresh NE to E winds near the coast of Campeche and fresh easterly winds in the Straits of Florida with 1014 mb high pressure analyzed SE of Louisiana near 29N88W, and a pair of weak troughs, one from near the coast near Tampa Bay Florida to NW of the Dry Tortugas, and the other just west of the Yucatan Peninsula. Winds are moderate or weaker elsewhere. Seas are 4 to 6 ft near the highest winds, and 3 to 5 ft elsewhere, except 3 ft of less in the NE Gulf coastal waters. The latest radar and satellite data shows scattered showers and isolated thunderstorms in the NW Gulf ahead of an outflow boundary analyzed by the Weather Prediction Center near the Texas coast. For the forecast, high pressure will be the main feature controlling the weather pattern across the basin through tonight. The associated pressure gradient will maintain moderate to fresh east to southeast winds over the basin through Sat morning, except gentle to moderate in the NE Gulf. East winds will pulse to strong speeds north of the Yucatan peninsula and over the Bay of Campeche tonight and Sat night in association with a diurnal trough. Moderate to fresh E winds and moderate seas are expected across the Straits of Florida through tonight. A weak cold front will reach the northern Gulf early Sat before shifting east of the basin Sun night. High pressure will then build southward across the Gulf leading to mostly moderate to fresh easterly winds over most of the forecast zones early next week, increasing to fresh to strong over the western Gulf by early Tue as the gradient tightens. ...CARIBBEAN SEA... The pressure gradient between a weak 1021 mb high pressure centered over the western Atlantic and lower pressures over northern Colombia is supporting fresh to strong NE to E winds across the Windward Passage and in the lee of Central Cuba per earlier ASCAT scatterometer data. Seas are 4 to 6 ft across the Windward Passage. In additionally, this pattern is supporting moderate to fresh NE to E winds south of Dominican Republic, locally strong near Cabo Beata, and locally fresh offshore Colombia. Gentle to moderate E winds and 2 to 5 ft seas are noted across the remainder of the waters. A few showers and thunderstorms are active near the monsoon trough off the coast of Colombia and eastern Panama south of 13N. Divergent flow aloft on the southeast side of an upper trough that extends from the western Atlantic to the western Caribbean is supporting scattered showers and a few thunderstorms across the north central and northeast Caribbean, N of 14N, and across portions of Hispaniola. For the forecast, high pressure over the western Atlantic combined with the Colombian low will support fresh to strong northeast winds through the Windward Passage and in the Lee of Cuba until around sunrise. Fresh northeast winds are expected south of the Dominican Republic, mainly near Cabo Beata through the morning. Fresh to strong northeast winds will materialize through the Windward Passage again tonight. Moderate to fresh winds will pulse north of Honduras, increasing to fresh to strong Tue night. Unsettled weather is expected to continue over most of the eastern Caribbean into the weekend. Otherwise, rather quiet conditions are expected over the basin into early next week. ...ATLANTIC OCEAN... A middle to upper level trough extends W-SW across the Hispaniola. This feature is creating unstable atmospheric conditions to the south and east of it, and supporting active weather. Scattered showers and thunderstorms are occurring S of 22N between Hispaniola and 63W. A 1014 mb low pressure has been analyzed near 27N53W. A surface trough extends southwestward from the low pressure to the northeastern Caribbean. Scattered to numerous showers and thunderstorms are active from 20N northward to 31N between 42W and the low pressure at 51W. Northwest of the low, a stationary front reaches from 31N53.5W to 26N65W. Near 31.5N71.5W a 1021 mb high is centered. The pressure gradient between the high and the other surface features is producing moderate to fresh NE winds to the west of the low and surface trough, with fresh to strong SE winds and 6 to 8 ft seas SE of the low from 21N to 28N between 44W and 51W. Seas of 5 to 7 ft prevail to the east of the Bahamas. Gentle to moderate winds are elsewhere over the SW N Atlantic, except fresh through the Straits of Florida and fresh to strong across the approach to the Windward Passage. Farther east, 1023 mb high pressure is east of the front near 31.5N34.5W, and a 1004 mb low center is approaching the SW Iberian Peninsula near 37N09W. This pattern is supporting a large area of moderate to fresh N to NE winds and 8 to 13 ft seas over the eastern Atlantic around the SE and S periphery of the high from 06N to 27N and E of 50W. Seas are 7 to 10 ft from near the low center southwestward offshore Africa from the Cabo Verde Islands northward and east of 35W. Winds are moderate or weaker across the remainder of the waters with 4 to 7 ft seas. For the forecast west of 55W, a stationary front and a surface trough, with a weak low along it, will persist over the central Atlantic between 50W and 60W over the next 48 hours or so. Fresh to strong NE to E winds and building seas to rough are expected over the NW part of it today and Sat due to the pressure gradient between the trough/low and high pressure to the N. The low should dissipate by Sun, and the trough is forecast to drift westward over the forecast waters through at least early next week. An area of fresh to strong easterly winds and rough seas will persist near the northern end of the trough axis affecting mainly the NE waters. Looking ahead, a weak cold front may approach then stall near the southeastern U.S. coast late Sat night into Sun. $$ Lewitsky