


Tropical Weather Discussion
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Issued by NWS
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366 AXNT20 KNHC 040413 TWDAT Tropical Weather Discussion NWS National Hurricane Center Miami FL 0615 UTC Wed Jun 4 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 0000 UTC surface analysis and satellite imagery through 0335 UTC. ...TROPICAL WAVES... The axis of an eastern Atlantic tropical wave is analyzed near 25W, south of 15N, moving westward at 5 to 10 kt. Scattered moderate convection is observed near the southern portion of the trough axis. ...MONSOON TROUGH/ITCZ... The monsoon trough enters the Atlantic through the coast of Guinea- Bissau near 12N16W and continues southwestward to 05N21W. The ITCZ extends from 05N21W to 04N24W and then from 04N26W to 02N38W. Scattered moderate convection is present south of 06N and between 16W and 30W. ...GULF OF AMERICA... The interaction between an upper level trough, surface trough and plenty of tropical moisture result in numerous showers and isolated thunderstorms across the eastern Gulf of America, with the strongest convection occurring near the Florida Keys. Mariners in the area can expect gusty winds, frequent lightning and higher seas. Generally dry weather conditions are noted elsewhere. A weak ridge over the eastern United States extends southwestward into the Gulf waters, supporting moderate to locally fresh SE-S winds in the NE and SE Gulf. Seas in these waters are 2-4 ft (0.5-1 m). Moderate to locally fresh E-SE winds and slight to moderate seas are found in the Bay of Campeche and NW Gulf. Elsewhere, light to gentle winds and slight seas prevail. For the forecast, moderate to fresh E to NE winds are expected each afternoon and evening north of the Yucatan Peninsula and into the eastern Bay of Campeche as a trough develops daily and moves westward. Expect moderate to fresh SE winds and building seas across the western and south- central Gulf through Fri between a trough over northern Mexico and high pressure over the Carolinas. ...CARIBBEAN SEA... Divergence aloft, diurnal heating and abundant tropical moisture support a few showers and isolated thunderstorms west of 80W in the Caribbean Sea. The remainder of the basin is under a plume of Saharan dust that suppresses thunderstorm development. An extensive 1033 mb subtropical ridge centered near 39N38W extends southwestward into the Caribbean waters, supporting a tight pressure gradient. A recent scatterometer satellite pass captured fresh to strong easterly trade winds in the central and western Caribbean, including at the entrance of the Windward Passage and the Gulf of Venezuela. Seas in these waters are 8-10 ft (2.5-3 m). Moderate to fresh easterly breezes and moderate seas are found in the eastern Caribbean. Light to gentle winds and slight to moderate seas prevail in the remainder of the basin. For the forecast, fresh to strong E winds and moderate to rough seas will continue across most of the Caribbean into late week, then diminish slightly at the end of the week. ...ATLANTIC OCEAN... A cold front extends from 31N66W to 30N78W, while a surface trough is located north of NW Bahamas. Divergence aloft and plenty of tropical moisture support scattered showers and isolated thunderstorms north of 24N and west of 75W. Latest satellite- derived winds data indicate that fresh to strong easterly trade winds are found south of 25N and west of 70W, with the strongest winds occurring at the entrance of the Windward Passage. Moderate seas are occurring in the area described. Moderate SE winds and moderate seas are present north of 25N and west of 75W. The remainder of the tropical Atlantic is dominated by the extensive subtropical ridge positioned to the west of the Azores. The pressure gradient between this ridge and lower pressures in the deep tropics result in moderate to locally fresh easterly winds and moderate seas south of 25N and between 55W and 70W. Similar winds and seas are noted between 35W and 55W. Fresh to strong N-NE winds and seas of 7-10 ft (2-3 m) are observed north of 16N and east of 22W. Elsewhere, moderate or weaker winds and moderate seas are prevalent. For the forecast west of 55W, a cold front will move SE of Bermuda tonight, then drift E across the NE waters through late this week. A surface trough along the SE U.S. coast will bring showers and thunderstorms offshore Florida over the next couple of days. Otherwise, high pressure will dominate. A tight pressure gradient will lead to fresh to strong winds pulsing nightly offshore Hispaniola through Fri. $$ Delgado