


Tropical Weather Discussion
Issued by NWS
Issued by NWS
629 AXNT20 KNHC 151632 TWDAT Tropical Weather Discussion NWS National Hurricane Center Miami FL 1815 UTC Sun Jun 15 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 1620 UTC. ...TROPICAL WAVES... An eastern Atlantic tropical wave is along 36W, south of 15N, moving westward around 10-15 kt. No significant convection is associated with this wave at this time. A central Atlantic tropical wave is along 46W, south of 15N, moving westward at 10-15 kt. No significant convection is associated with this wave at this time. A central Caribbean tropical wave is along 76W, from 19N southward, moving westward at 10-15 kt. A few showers are noted near the wave axis. ...MONSOON TROUGH/ITCZ... The monsoon trough enters the Atlantic near 12N16W and continues southwestward to 05N23W. Segments of the ITCZ extend from 05N23W to 07N34W, 07N38W to 06N45W, and 05N48W to the coast of French Guiana. No significant convection is noted near the boundaries at this time. GULF OF AMERICA... Pop-up showers and tstorms are evident in the NE Gulf waters. A surface trough, a few showers, and locally fresh SE winds are in the Bay of Campeche. Ridging associated with subtropical Atlantic high pressure prevails across the Gulf, supporting gentle to moderate SE winds and 3-5 ft seas. For the forecast, fresh to strong E to NE winds will pulse each afternoon and evening through the week north of the Yucatan Peninsula and in the eastern Bay of Campeche as a diurnal trough develops and treks westward across the region. Otherwise, ridging over the western Atlantic will maintain moderate S to SE winds and moderate seas over the central and western Gulf through the middle of the week, with gentle to moderate SE winds and slight to moderate seas in the eastern basin. CARIBBEAN SEA... Scattered moderate convection is from the coast of Panama north to 14N and west of 80W, including coastal regions of Nicaragua. Fresh to strong trades were detected by satellite scatterometer data across the central and southwest Caribbean and the Gulf of Honduras. Seas in these winds range from 6-9 ft, with peak seas in the SW Caribbean off the coast of Colombia. Elsewhere in the Caribbean Sea, moderate trades and 4-6 ft seas prevail. For the forecast, fresh to strong trade winds are expected to pulse across the central and west-central Caribbean through the middle of the week as a strong pressure gradient prevails between high pressure to the north and low pressure in the south-central Caribbean. Rough seas in E swell are likely in this region. Fresh to strong E to SE winds will also occur each night and morning in the Gulf of Honduras, and these winds will expand through much of the northwestern Caribbean early in the week after the passage of a tropical wave. Elsewhere, rough seas in E swell will occur east of the Lesser Antilles and through the passages into the eastern Caribbean into today. Otherwise, mainly moderate winds and seas are expected across the rest of the basin. ATLANTIC OCEAN... The subtropical ridge continues to dominate the tropical Atlantic waters. Moderate or weaker trades and 4-7 ft seas prevail. For the forecast west of 55W, moderate to fresh trade winds will pulse south of 25N through the middle of the week as high pressure prevails over the central Atlantic. At the same time, strong winds will be possible just north of Hispaniola. Elsewhere, moderate S to SW winds will pulse offshore of Florida into the middle of the week as low pressure prevails over the eastern United States. Otherwise, mainly gentle to moderate winds and moderate seas are expected elsewhere north of 25N through the week. $$ Mahoney