


Tropical Weather Discussion
Issued by NWS
Issued by NWS
298 AXNT20 KNHC 111610 TWDAT Tropical Weather Discussion NWS National Hurricane Center Miami FL 1815 UTC Fri Jul 11 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 1200 UTC surface analysis and satellite imagery through 1600 UTC. ...TROPICAL WAVES... A tropical wave is relocated to 21W based on recent scatterometer data. The axis extends from 05N to 18N. The westward motion is an uncertain 5-10 kt. Scattered moderate convection is from 08N to 16N between 20W and 24W. A tropical wave is analyzed near 39W, from 08N to 18N, moving west at around 5-10 kt. No significant convection is noted at this time. A tropical wave is along 64W from 07N to 18N, moving westward at 10-15 kt. Scattered moderate convection is from 12N to 16N between 63W and 69W. A tropical wave is analyzed near 79W from the coast of Panama north to 20N, moving west at 15-20 kt. Scattered moderate isolated strong convection is from the coast of Panama north to 12N west of 77W. The upper air sounding from Kingston, Jamaica greatly aided the analysis of this tropical wave. ...MONSOON TROUGH/ITCZ... The monsoon trough enters the Atlantic near Dakar, Senegal, and extends to 07N42W. The ITCZ continues from 07N42W to Guyana near 06N58W. Convection is described in the TROPICAL WAVES section. GULF OF AMERICA... 1021 mb high pressure is centered in the eastern Gulf waters. The diurnal surface trough is analyzed in the Bay of Campeche. Gentle to moderate E to SE winds and 2-4 ft seas prevail across the basin. For the forecast, relatively weak high pressure will prevail across the basin through the forecast period. Fresh to strong NE to E winds will pulse along the Yucatan Peninsula each afternoon and evening as a trough develops inland daily and shifts westward over the Bay of Campeche at night. A surface trough is expected to develop across Florida by Mon and drift westward into the eastern Gulf on Tue, accompanied by active weather. CARIBBEAN SEA... Please see the TROPICAL WAVES section above. Outside of the TROPICAL WAVES, the pressure gradient between the subtropical Atlantic high pressure and lower pressure over Colombia supports moderate to fresh trades across the eastern and central Caribbean, with moderate or weaker trades in the western Caribbean. This is supported by recently received satellite scatterometer data. As a result of these winds, seas are 4-7 ft across most of the basin, except in the NW Caribbean where seas are 2-4 ft in light winds. For the forecast, the pressure gradient between the Bermuda High and low pressure over NW Colombia will continue to support pulsing fresh to strong trades and rough seas across the south-central Caribbean through the forecast period. Fresh east winds are expected across the Gulf of Honduras, mainly at night, into early next week. Moderate to fresh winds and moderate seas are expected in the eastern Caribbean through the weekend while gentle to moderate winds and slight to moderate seas will prevail elsewhere. ATLANTIC OCEAN... Please see the TROPICAL WAVES section above. The subtropical Atlantic high pressure dominates the weather conditions across the basin. Satellite scatterometer data indicates gentle to moderate trades in most waters, with 4-7 ft seas. Trades are pulsing to locally fresh speeds on approach to the Lesser Antilles south of 16N and west of 50W. For the forecast west of 55W, the Bermuda-Azores High extends a ridge toward the Bahamas and south Florida. This system will gradually shift eastward and weaken through the upcoming weekend. The related pressure gradient will support gentle to moderate winds, except for fresh to locally strong east to southeast winds off the northern coast of Hispaniola through Sat. Winds and seas will diminish Sun through early Mon, then increase modestly Tue. $$ Mahoney