000 AXNT20 KNHC 031656 TWDAT Tropical Weather Discussion NWS National Hurricane Center Miami FL 1805 UTC Tue Sep 3 2024 Tropical Weather Discussion for North America, Central America Gulf of Mexico, 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 1700 UTC. ...TROPICAL WAVES... An eastern Atlantic tropical wave has its axis along 25W from 05N to 19N, and is moving westward at 15 to 20 kt. Scattered moderate convection is observed with this wave, generally from 10N to 15N between 21W and 28W. A central Atlantic tropical wave has its axis along 41W from 04N to 20N. It is moving westward at 10 to 15 kt. An area of increasing scattered moderate to isolated strong convection is seen from 11N to 18N between 40W and 45W. An central Caribbean tropical wave is along 71W from 20N southward to inland Venezuela. It is moving westward near 20 kt. Satellite imagery shows scattered moderate and isolated strong convection from 13N to 21N between 63W and 77W. Environmental conditions are expected to become more conducive for development when the system reaches the western Caribbean Sea and southwestern Gulf of Mexico late this week or over the weekend, and a tropical depression could form during that time. ...MONSOON TROUGH/ITCZ... The monsoon trough enters the Atlantic along the Mauritania coast near 18N16W, then extends southwestward to 12N23W, westward to 12N38W and southwestward to 06N50W. Aside from convection associated with the tropical waves as described above, numerous moderate to isolated strong convection is from 05N to 15N between 30W and 41W. ...GULF OF MEXICO... A broad area of low pressure over Deep South Texas and attendant surface trough extending along the adjacent Mexican coast are generating numerous moderate, isolated strong convection across areas west of 93W and north of 22N. A surface trough out ahead of an approaching cold front extends from NE Florida southwestward across the northeastern and central Gulf to near 24N94W. A diurnal surface trough is also analyzed over the Bay of Campeche. Scattered moderate convection is observed along and generally within 100 nm of these trough axes. Outside of convection, a rather weak gradient in place over the area is allowing for generally gentle to moderate east to southeast winds along with seas of 1 to 3 ft over much of the Gulf. For the forecast, scattered thunderstorms with locally gusty winds will continue through late week as a cold front stalls along the northern Gulf coast. A reinforcing cold front will move into the NW Gulf Fri into Sat, bringing fresh to locally strong NE winds behind it. A tropical wave currently in the central Caribbean could develop into a tropical depression as it SW Gulf of Mexico this weekend. ...CARIBBEAN SEA.. Please refer to the Tropical Waves section above for information on convection in the central to eastern Caribbean. Scattered moderate convection is observed via satellite over the far northwestern and far southwestern Caribbean, generally along and near the coasts of the Yucatan Peninsula, Belize, Honduras, Nicaragua, Costa Rica, and Panama. Moderate to fresh, locally strong easterly winds and seas of 4 to 6 ft are over the north- central and northeastern sections of the basin. Gentle to moderate E winds and 2 to 4 ft seas are seen across the remainder of the basin. For the forecast, the tropical wave near 71W will continue moving westward, and a tropical depression could form when it reaches the western Caribbean late this week. Thunderstorms, strong winds, and rough seas will accompany this wave in the north-central and NW Caribbean this week. ...ATLANTIC OCEAN... Please refer to the Tropical Waves section above for more information on convection in the central and eastern Atlantic. Scattered moderate convection is observed ahead of a cold front stemming from low pressure centered near 33N75W, with convection occurring generally north of 28N and west of 68W. Another area of scattered showers and isolated thunderstorms is also observed via satellite from 23N to 28N between 56W and 60W. Outside of convection, the Bermuda-Azores high continues to favor gentle to moderate E to NE winds across much of the basin. Areas of moderate to fresh winds are seen with the tropical wave near 41W, as well as in the vicinity of the Canary Islands. Seas of 4 to 7 ft are also analyzed across much of the Atlantic. For the forecast W of 55W, f resh E to NE winds will pulse to locally strong tonight and Wed night off the coast of Hispaniola as a tropical wave passes S of the area. Otherwise, a mid-level trough will continue to maintain unsettled conditions over most of the western portion of the area, including waters adjacent to the the Bahamas and Cuba, for the next several days. $$ Adams