Tropical Weather Discussion
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Issued by NWS
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886 AXNT20 KNHC 301744 TWDAT Tropical Weather Discussion NWS National Hurricane Center Miami FL 1815 UTC Fri Oct 30 2026 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 1700 UTC. ...MONSOON TROUGH/ITCZ... The monsoon trough axis reaches the Atlantic through the coast of Senegal near 14N17W and continues southwestward to 06N28W, where it transitions to the ITCZ. the ITCZ then continues to near 05N54W. Scattered moderate convection is occurring from 03N to 10N and E of 30W. ...GULF OF AMERICA... A tight pressure gradient between high pressure over the eastern United States, a surface trough over the Bahamas and a trough over the south-central Gulf are supporting moderate to fresh northeast to east winds across the northeast and north-central Gulf. Moderate seas to 6-7 ft are with these winds. Moderate or weaker winds are elsewhere as noted in recent scatterometer passes. For the forecast, a modest pressure gradient between high pressure over the eastern U.S. and lower pressure over the Bahamas and the NW Caribbean will continue to support moderate to fresh NE to E winds and moderate seas across the northeast and north- central Gulf into early next week. Looking ahead, expect fresh SE to S winds to develop over much of the northwest Gulf by Tue night, as a cold front moves through the Southern Plains. ...CARIBBEAN SEA... The pressure gradient between higher pressure over the Gulf and Atlantic and lower pressure over Colombia supports fresh to strong trades and 5-7 ft seas in the south-central Caribbean and Gulf of Venezuela. Moderate to fresh trades and 3-6 ft seas prevail across the remainder of the central and eastern Caribbean, with gentle to moderate or weaker winds and slight seas elsewhere. A surface trough analyzed from Jamaica to the north coast of Panama supports scattered moderate convection S of 17N between 74W and 81W. Scattered moderate convection is also occurring in the SE Caribbean S of 14N and E of 68W, driven by convergent surface winds and an upper-level trough. For the forecast, a lingering frontal trough extends from 1012 mb low pres near 30N67W to 27N79W, allowing for a modest pressure gradient to the south, and across the Caribbean basin. The low pres will shift NE through the weekend, with strong high pressure building into the western Atlantic, and forcing the frontal trough southward through the NW Bahamas. Expect moderate to fresh trades over the central and eastern Caribbean to continue through Mon night, with small areas of strong winds near the coast of Colombia and NW Venezuela. Winds and seas are expected to diminish basin- wide late Mon through Tue as broad low pressure begins to develop across the Atlantic to the NE of the Bahamas. ...ATLANTIC OCEAN... A 1012 mb low is analyzed near 30N67W. A cold front extends from this low to the waters north of the Turks and Caicos. A stationary front also extends from another low north of the area to 31N57W to 23N36W to 31N25W. A surface trough also extends from the low to just north of the Bahamas and then to near the Florida Keys. Fresh to strong E to NE winds and seas of 6-10 ft prevail N of the large stationary front and surface trough. Scattered showers and thunderstorms are along and ahead of the cold front, generally N of 22N and W of 61W. Scattered showers and thunderstorms are also along and ahead of the stationary front N of 20N between 20W and 35W. Elsewhere across the Atlantic, moderate or weaker trades and 3-6 ft seas prevail. For the forecast west of 55W, 1012 mb low pres near 30N67W extends a cold front S-SW into the southeast Bahamas, while a lingering frontal trough extends from the low pres to near 27N79W. Fresh to strong NE to E winds with rough seas to around 12 ft will persist north of the frontal trough into next week, as the low pressure moves northeastward past Bermuda, and strong high pressure gradually builds into the western Atlantic. This will reinvigorate the frontal trough and force it southeastward, where it will stall near 25N Sun, then lift northward Mon and Tue as broad low pressure begins to develop NE of the Bahamas. $$ Adams