


Tropical Weather Discussion
Issued by NWS
Issued by NWS
274 AXNT20 KNHC 140447 TWDAT Tropical Weather Discussion NWS National Hurricane Center Miami FL 0615 UTC Mon Jul 14 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 0435 UTC. ...TROPICAL WAVES... A central Atlantic tropical wave is along 42W, south of 19N, moving westward at around 20 kt. Scattered moderate convection is observed south of 11N and between 37W and 44W. A central Atlantic tropical wave is along 54W, south of 19N, moving westward at 15-20 kt. No significant convection near this wave. ...MONSOON TROUGH/ITCZ... A monsoon trough enters the Atlantic through the coast of Mauritania near 19N16W, continuing southwestward to 11N25W to 11N47W. Scattered moderate convection is noted from 07N to 11N and east of 20W. ...GULF OF AMERICA... An upper level low over the NW Gulf is supporting a few showers in the area. In the NE Gulf, an upper level trough sustains some showers and isolated thunderstorms over Florida and nearby waters. Meanwhile, storms that developed earlier today over western Yucatan are moving across the eastern Bay of Campeche. The remainder of the basin is under drier conditions. At the surface, a 1020 mb high pressure in the eastern Gulf waters forces moderate to locally strong E-SE winds over much of the western part of the basin, west of 90W. This was confirmed by a recent scatterometer satellite pass. Seas in these waters are 2-5 ft. Elsewhere, light to gentle winds and slight seas prevail. For the forecast, weak high pressure prevails across the NE Gulf, producing gentle to moderate SE winds over the western Gulf, and mainly light winds elsewhere. The high pressure will drift slowly westward and into the NW Gulf by Wed. In the meantime, a trough of low pressure near the southeastern U.S. coast is expected move westward across Florida during the next day or so, and into the northeastern Gulf by Tue. Environmental conditions could support some gradual development of this system during the middle to late part of this week while it moves westward over the northeastern and north-central portions of the Gulf, accompanied by active weather. ...CARIBBEAN SEA... An upper level trough extends from the SW North Atlantic to the central Caribbean Sea, supporting some showers and isolated thunderstorms over western Hispaniola and SE Cuba. Some showers are also seen in the SW Caribbean. Elsewhere, drier conditions are prevalent. High pressure over the central Atlantic forces fresh to strong easterly trade winds in the south-central Caribbean and Gulf of Honduras. Seas in these waters are 5-9 ft. Moderate to locally fresh easterly breezes and moderate seas are noted in the north- central and eastern Caribbean. In the remainder of the basin, moderate or weaker winds and slight to moderate seas prevail. For the forecast, a weak ridge will prevail N of the area along 29N through Mon. High pressure will then build westward across the regional Atlantic and into Florida Tue through Thu. This pattern will continue to support pulsing fresh to strong trades and rough seas across the south-central Caribbean through early Tue then expand across much of the central basin late Tue through Thu. Fresh E winds are expected across the Gulf of Honduras through Fri, pulsing to locally strong tonight. Moderate to fresh winds and moderate seas are expected in the eastern Caribbean through Tue while gentle to moderate winds and slight to moderate seas will prevail NW portions. ...ATLANTIC OCEAN... A surface trough paralleling the eastern coast of Florida and divergence aloft support scattered showers west of 75W. A few showers are also found south of Bermuda due to an upper level trough. The rest of the tropical Atlantic is dominated by an extensive subtropical ridge, supporting moderate to locally fresh easterly winds and moderate seas south of 25N and between 25W and 65W. Fresh to strong N-NE winds seas of 5-8 ft are noted east of 25W. Elsewhere, moderate or weaker winds and slight to moderate seas prevail. For the forecast west of 55W, a weak ridge along 29N will dominate the forecast area east of 70W through Mon. High pressure will then build westward across the region and into Florida Tue through Thu in the wake of a trough of low pressure developing across the NW zones tonight. This trough is forecast to move westward across Florida during the next day or so, and into the northeastern Gulf by Tue. Active weather is expected in association with this system over the waters west of 75W through Tue. The pressure gradient between the Atlantic ridge building westward and the trough of low pressure will support moderate to fresh SE to S winds across the Bahamas and through the NW zones Tue through early Thu. $$ Delgado