####018004612#### AXNT20 KNHC 271017 TWDAT Tropical Weather Discussion NWS National Hurricane Center Miami FL 1215 UTC Sun Apr 27 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 1000 UTC. ...MONSOON TROUGH/ITCZ... The monsoon trough enters the Atlantic Ocean through the coast of Senegal at 15N18W to 04N21W. The ITCZ continues from 04N21W to the coast of Brazil near 01N50W. Scattered moderate to isolated strong convection is evident south of 06N and W of 18W. GULF OF AMERICA... A weak high pressure dominates the Gulf waters, supporting moderate to fresh NE-E winds and moderate seas south of 22N and east of 94W. Moderate E-SE winds and moderate seas prevail in the rest of the basin, except for light to gentle winds and slight seas in the NE Gulf. A stable airmass maintains fairly tranquil weather conditions. For the forecast, the surface ridge will continue to dominate the Gulf waters through early this week supporting gentle to moderate E to SE winds and moderate seas. Winds will pulse to fresh to strong speeds each evening over the east and central Bay of Campeche through Tue night due to local effects related to a thermal trough coming off the Yucatan Peninsula. Fresh winds and moderate seas are forecast in the Straits of Florida through the forecast period due to persistent high pressure NE of the area. By Monday night, SE winds may increase in the central and northwest Gulf and persist through mid-week. CARIBBEAN SEA... A band of multilayer clouds, with embedded scattered showers and thunderstorms, extends from northern Venezuela northeastward across the eastern Caribbean including Puerto Rico and the Leeward Islands, then into the central Atlantic. This cloudiness is associated with strong SW winds aloft occurring on the eastern side of a broad upper level trough across the Caribbean basin. Elsewhere, shallow moisture embedded in the trade wind flow is producing isolated to scattered passing showers across much of the northeast Caribbean and adjacent islands. High pressure centered north of the area support moderate to fresh easterly trade winds in the lee of Cuba, along with seas of 2-4 ft. Moderate easterly breezes and moderate seas are noted in the south-central and eastern Caribbean and Windward Passage. Elsewhere, light to gentle winds and slight to moderate seas are prevalent. For the forecast, high pressure north of the basin combined with the Colombian low will support pulsing fresh winds at night in the Windward Passage, south of Cuba, and offshore Colombia, with moderate trade winds elsewhere. By Monday evening, winds will pulse to strong south of Cuba and in the Windward Passage, as high pressure north of the area strengthens. ATLANTIC OCEAN... A broad surface trough persists over the Atlantic waters, from eastern Hispaniola to near 31N65W. A recent scatterometer satellite pass captured fresh to strong easterly winds north of 25N and between 53W and 67W. Seas in these waters are 5-8 ft. Moderate to fresh easterly winds and slight to moderate seas are evident south of 25N and west of 70W. A stationary front extends along 31N east of 55W. Fresh east winds are associated with this feature. The remainder of the basin is dominated by broad surface riding, supporting moderate to fresh easterly breezes and moderate seas between 25W and 65W. A tighter pressure gradient between the ridge off Portugal and lower pressures in western Africa sustain fresh to strong N-NE winds and seas of 6-9 ft east of 25W and north of 19N. Elsewhere, light to gentle winds and slight to moderate seas prevail. For the forecast west of 55W, the central Atlantic front will drift eastward over the next couple days. Elsewhere, a weak surface trough along 68W extending from eastern Hispaniola to 31N will persist for the next few days. A cold front will move S of 31N tonight, reach from near 31N61W to 26N72W to Daytona Beach Florida Mon evening, then move to near 31N55W to the central Bahamas Tue evening before weakening. Moderate to fresh NNE to NE winds will follow the front. $$ ERA