


Tropical Weather Discussion
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Issued by NWS
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803 AXNT20 KNHC 261835 CCA TWDAT Tropical Weather Discussion...Corrected NWS National Hurricane Center Miami FL 1815 UTC Thu Jun 26 2025 Corrected Tropical Waves section 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 1800 UTC. ...SPECIAL FEATURES... Significant Rainfall in Central America/Western Caribbean: The interaction between a couple of tropical waves that are described below, and abundant tropical moisture over the same area will continue to enhance the chances for significant showers and thunderstorms over the western Caribbean and across portions of Central America through at least Fri. This will increase the potential for flash flooding and mudslides, especially in hilly terrains. According to the latest model guidance, the heaviest rainfall is expected to be near the northeast coast of Nicaragua and in northern Honduras. Please refer to the local Weather Services in the region for more information. ...TROPICAL WAVES... A far eastern Atlantic tropical wave has its axis near 30W from 04N to 15N, moving westward around 15 kt. No significant convection is presently occurring with this wave. A central Atlantic tropical wave has its axis extending from 18N46W to 12N45W to 02N45W. It is moving westward at 15 to 20 kt. Satellite imagery reveals scattered showers and isolated thunderstorms are within 180 nm either side of the wave from 09N to 12N. A western Caribbean tropical wave has its axis near 80W south of 17N. It is moving westward at around 10 kt. Scattered moderate convection is near the northern portion of the wave. Isolated showers and thunderstorms are within 60-90 nm of the wave axis from 09N to 12N. A far western Caribbean tropical wave has its axis near 88W and south of 20N. It is moving westward at 5 to 10 kt. This wave remains under a region of broad anticyclonic flow that is helping to sustain numerous moderate to strong convection that is between this wave and the one near 80W. This convection is occurring from 14N to 21N between 80W-86W. Small clusters of scattered moderate convection are along and just offshore the coast of Nicaragua, with similar convection noted just offshore Costa Rica and northern Panama. This wave is forecast to merge into a broad cyclonic circulation that is over the eastern Pacific Ocean associated to Invest-EP95. ...MONSOON TROUGH/ITCZ... The monsoon trough axis passes through the coast of Senegal near 14N17W and continues southwestward to 10N24W and west-southwestward 09N31W, where it transitions to the ITCZ to 09N44W. It resumes west of a tropical wave near 09N46W and continues to 08N57W. Aside from convection related to the wave that is along a position from 18N46W to 12N45W to 02N45W, scattered moderate convection is within 180 nm south of the trough between the coast of Africa and 23W. ...GULF OF AMERICA... Atlantic high pressure extends westward across the northern Gulf. A trough is analyzed from near Apalachicola, Florida southward to 25N85W. Scattered showers and isolated thunderstorms are north of 27N between 84W and 91W. Both buoy and scatterometer satellite data indicate light to gentle east winds throughout, except for east to southeast gentle winds over the far western Gulf. Seas are in the 2 to 4 ft range. For the forecast, the high pressure will dominate the Gulf waters through early next week. Fresh to locally strong northeast to east winds will pulse each evening and night north of the Yucatan Peninsula and in the eastern Bay of Campeche due to local effects induced by a thermal trough. Gentle to moderate east to southeast winds and slight to moderate seas are expected elsewhere through early next wee ...CARIBBEAN SEA... Refer to the Special Features section regarding the potential for heavy rainfall over portions of the western Caribbean. The present pressure gradient is sustaining fresh to strong trades across the south-central portion of the basin as depicted in recent scatterometer satellite data passes. Seas with these winds are 8 to 11 ft. Mostly fresh trades with seas of 5 to 7 ft are elsewhere across the basin east of 85W, except for seas of 6 to 9 ft in east swell north of 15N. Fresh trades are also in the Gulf of Honduras with seas of 4 to 6 ft. Moderate east to southeast winds are west of 85W with seas of 3 to 5 ft. For the forecast, the pressure gradient between a ridge of high pressure in the Atlantic and lower pressure in the southwestern Caribbean that is associated with the eastern Pacific monsoon trough will support fresh to strong trades across most of the central and SW Caribbean. Winds are expected to pulse to near- gale force off Colombia and in the Gulf of Venezuela, with moderate to rough seas. Strong winds will develop over the Gulf of Honduras today and continue through the weekend. Elsewhere, moderate to fresh winds and moderate seas will prevail. ...ATLANTIC OCEAN... High pressure of 1021 mb is analyzed at 27.5N64W while a 1027 high is analyzed north of the area at 34N30W. A trough extends from near 29N44W to 22N48W. High pressure covers the area north of about 20N and east of the Bahamas. Fresh to strong east winds are south of 22N between 66W and 73W. Moderate to fresh east winds are elsewhere south of 24N, except for fresh northeast winds east of 40W. Seas are 5 to 6 ft south of 24N east of the Bahamas and to 3 to 5 ft elsewhere except for lower seas of 3 to 4 ft over the northwest part of the area and for seas of 3 ft or less west of the Bahamas including the Straits of Florida. A mid to upper-level low is located just east of central Florida as seen in water vapor imagery. At the surface, a trough extends from 29N79W to the near the NW Bahamas. Scattered moderate convection is from 25N to 30N between 74W and the coast of Florida. Farther east, an upper-level low dropping south is noted near 27N58W. Scattered moderate convection associated with this feature exists from 24N to 29N between 54W and 61W. For the forecast west of 55W, the Bermuda High and associated ridge will prevail across the region through early next week. Moderate to fresh east to southeast winds and moderate seas will prevail south of 25N. Fresh to strong east winds will pulse late in the afternoon and at night north of Hispaniola through early next week. Gentle to moderate winds and slight to moderate seas are expected elsewhere. $$ Aguirre