


Tropical Weather Discussion
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Issued by NWS
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256 AXNT20 KNHC 061727 TWDAT Tropical Weather Discussion NWS National Hurricane Center Miami FL 1815 UTC Mon Oct 6 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 1800 UTC. ...SPECIAL FEATURES... Central Tropical Atlantic (AL95): A broad area of low pressure, analyzed as a 1010 mb low near 09N36.5W, is associated with a low-latitude tropical wave along 36.5W, and continues to produce a large area of disorganized cloudiness and showers, from 05N to 14N between 32W and 40W. Peak winds to 25 kt and seas to 8 ft are found within 180 nm north of the low. Visible satellite images indicate that the area of low pressure located over the tropical central Atlantic is gradually becoming better organized. Environmental conditions appear generally conducive for slow development of this system, and a tropical depression is likely to form within the next couple of days while it moves quickly west-northwestward across the central tropical Atlantic. This system is expected to be near or north of the northern Leeward Islands on Thursday and Friday, and interests there should monitor its progress. Please read the latest TROPICAL WEATHER OUTLOOK issued by the National Hurricane Center at website - https://www.nhc.noaa.gov/text/MIATWOAT.shtml for more details. ...TROPICAL WAVES... A tropical wave is along 48W from 21N southward, moving west at 10 to 15 kt. No significant convection is occurring near this wave. Another tropical wave is over the Lesser Antilles with axis along 62W, moving west at 10 kt. Scattered showers and isolated thunderstorms are seen from 15N to 19N between 60W and 64W. ...MONSOON TROUGH/ITCZ... The monsoon trough enters the Atlantic Ocean near 14N16W and continues southwestward to a 1010 mb low pressure located near 09N37W (AL95). The ITCZ extends from 09N37W to 09N46W where it is broken by a tropical wave, with the ITCZ then resuming at 09N49W and continuing to 10N59W. Scattered moderate convection is occurring from 03N to 12N between 10W and 25W, and from 04N to 11N between 40W and 58W. ...GULF OF AMERICA... A stationary front runs along much of the northern Gulf coast, with scattered showers and isolated thunderstorms near the frontal boundary. A surface trough in the SW Gulf and Bay of Campeche is also leading to scattered showers and isolated thunderstorms near the trough axis. Gentle to moderate E to NE winds persist north of the front. Winds across the remainder of the basin are gentle or weaker, with seas of 2-5 ft prevailing across the basin. For the forecast, high pressure across the eastern U.S. will build modestly across the Gulf basin late today throughout the week. Moderate E to SE winds and slight to moderate seas will prevail through late Tue, becoming moderate NE to E through the remainder of the week. Occasional locally fresh winds are expected in the northeastern Gulf. ...CARIBBEAN SEA... Please, see the SPECIAL FEATURES section for more information on the medium range forecast for Invest AL95. A surface trough paralleling the coasts of the Yucatan Peninsula and Belize is aiding in the development of scattered moderate and isolated strong convection across much of the far western Caribbean W of 81W. Outside of convection, winds across much of the Caribbean are from the east at gentle to moderate speeds, with the exception of offshore Colombia where moderate to fresh trades persist. Seas are generally 2-5 ft across the basin, except in the Gulf of Honduras where convection is driving seas of 4-7 ft, and the northern Caribbean Passages where N to NE swell is leading to seas of 4-8 ft. For the forecast, rough seas in large N to NE swell over the tropical Atlantic waters and through the Caribbean Passages will gradually subside through Tue. Elsewhere, moderate trade winds will persist across the south-central Caribbean. Moderate E to SE winds will pulse fresh to locally strong in the northwestern Caribbean, including the Gulf of Honduras, each night through the middle of the week. Showers and thunderstorms will remain active across the northwestern Caribbean through Tue night. A broad area of low pressure associated with a low-latitude tropical wave continues to produce a large area of disorganized showers and thunderstorms over the tropical central Atlantic. Environmental conditions appear generally conducive for gradual development of this system, and a tropical depression is likely to form within the next few days while it moves quickly west- northwestward across the central tropical Atlantic, approaching the northern Leeward Islands by the latter part of the week. Regardless of development, expect an increase in winds and seas across the tropical Atlantic waters with this system by the end of the week. ...ATLANTIC OCEAN... Please refer to the SPECIAL FEATURES section for more details on Invest AL95. A stationary front enters the forecast region near 31N40W and extends west-southwestward to near 23N69W and then west- northwestward to a 1013 mb low near 26N80W. Scattered moderate and isolated strong convection is seen along and generally north of the front, and also across much of the Bahamas. Fresh to strong E to NE winds and rough seas are analyzed north of the front. A surface trough is analyzed NE of the Lesser Antilles from 15N60W to near 21N55W. Scattered moderate convection is seen from 13N to 20N between 53W and 60W. Scattered moderate convection is also seen off the coast of west Africa from 04N to 10N and E of 17W. Elsewhere, a 1023 mb high near 35N20W extends a ridge southwestward into the Atlantic, with the associated pressure gradient between this ridge and lower pressures both in the tropics and over Africa resulting in fresh to strong NE winds from 16N to 28N and E of 22W. Seas are 7-9 ft in this region. Much of the remaining tropical Atlantic is seeing moderate to fresh trades and seas of 6-9 ft prevail. For the forecast west of 55W, rough seas in large N to NE swell across the regional waters will gradually subside from north to south over the central Atlantic through Tue night. Fresh to strong NE to E winds will prevail north of a stationary front, extending from the central Atlantic near 28N55W through the NW Bahamas and to the SE Florida coast, through late Tue. Winds will diminish midweek as the front drifts northward and dissipates. A broad area of low pressure associated with a low-latitude tropical wave continues to produce a large area of disorganized showers and thunderstorms over the tropical central Atlantic. Environmental conditions appear generally conducive for gradual development of this system, and a tropical depression is likely to form within the next few days while it moves quickly west-northwestward across the central tropical Atlantic, approaching the northern Leeward Islands by the latter part of the week. Regardless of development, expect an increase in winds and seas over the SE waters with this system by the end of the week. $$ Adams