{"msg": "782\nAXNT20 KNHC 222245\nTWDAT \nTropical Weather Discussion\nNWS National Hurricane Center Miami FL\n0015 UTC Sun Aug 23 2026\nTropical Weather Discussion for North America, Central America\nGulf of America, Caribbean Sea, northern sections of South\nAmerica, and Atlantic Ocean to the African coast from the\nEquator to 31N. The following information is based on satellite\nimagery, weather observations, radar and meteorological analysis.\nBased on 1800 UTC surface analysis and satellite imagery through\n2245 UTC.\n...TROPICAL WAVES...\nA tropical wave has its axis along 28W south of 19N moving \nwestward at 10 to 15 kt. Scattered moderate to isolated strong \nconvection is near the southern end of the wave axis from 05N to\n10N between 26W and 32W.\nAnother tropical wave has its axis along 47W/48W south of 19N \nmoving westward at 15 to 20 kt. A few showers are near the\nnorthern end of the wave axis.\nA tropical wave is approaching the Lesser Antilles. Its axis is\nalong 60W south of 20N. It is moving westward at 15 to 20 kt.\nConvection is limited near the wave axis at this time. However, \nmoisture associated with this wave is forecast to reach mainly \nthe Windward Islands tonight into Sun likely increasing the \nlikelihood of showers.\nA tropical wave is over the western Caribbean along 82W south of\n20N. It is moving westward at 10 to 15 kt. The wave appears to \nenhance convection over parts of Panama and Costa Rica as well as\nover the Atlantic plains of Nicaragua. \n...MONSOON TROUGH/ITCZ...\nThe monsoon trough axis enters the Atlantic through the coast of \nMauritania near 18N16W and continues southwestward to 08N28W, and\nnorthwestward from there to 11N50W. The ITCZ extends from 11N50W\nto 11N59W. No significant convection is noted outside of what is\ndescribed in the Tropical Waves section above.\n...GULF OF AMERICA...\nScattered showers and thunderstorms are active across most of the\nnorthern Gulf ahead of surface trough that extends from SE Georgia\nto the coast of Louisiana. Additional showers and thunderstorms \nare active over the Yucatan Peninsula. Elsewhere, a ridge continues\nto dominate the Gulf waters, anchored by 1018 mb high pressure \nlocated near 24N94W. This pattern is supporting light to gentle \nwinds and slight seas, except for gentle to moderate winds and 3 \nto 5 ft seas over the Bay of Campeche east of the trough in that \narea.\nFor the forecast, weak high pressure will remain centered over \nthe basin into late next week, leading to gentle to moderate \nwinds and generally slight seas. A surface trough will generate \nfresh winds north and west of the Yucatan Peninsula in the early \nevenings, which will pressure further offshore through the Bay of\nCampeche during the overnight hours.\n...CARIBBEAN SEA...\nThe pressure gradient associated to high pressure over the western\nAtlantic and relatively lower pressure in northern South America\nis sustaining fresh to strong trades primarily over the south-\ncentral Caribbean. Seas in the range of 8 to 9 ft are with these \ntrades as noted in recent altimeter data. Moderate to fresh trades\nand moderate seas are elsewhere, except in the NW Caribbean where\nlight to gentle winds and slight to moderate seas are noted. \nConvection is flared-up over much of Central America and Cuba, \nand over parts of Dominican Republic. \nFor the forecast, the pressure gradient between western Atlantic\nhigh pressure and Colombia low pressure will support fresh to \nstrong trades and resultant rough seas over the south-central \nCaribbean through next week. Elsewhere, mainly moderate to fresh \ntrades and moderate seas will prevail, aside from light to gentle\nwinds and slight seas in the NW part of the basin. A pair of \ntropical waves crossing the Caribbean Sea next week lead to periods\nof enhanced winds after their passages.\n...ATLANTIC OCEAN...\nA 1021 mb high pressure centered between the Bahamas and Bermuda\nnear 29N68W dominates the western Atlantic west of 60W. A surface\ntrough extends from 31N75W to 28N80W. Showers and thunderstorms\nare associated with this trough. Satellite derived wind data  \nindicate mainly gentle to moderate winds on either side of the \ntrough axis. Moderate to locally fresh E to SE winds and seas of \n3 to 5 ft are noted off Hispaniola and eastern Cuba, including \napproaches to the Windward Passage. Light to gentle winds and \nslight to moderate seas prevail elsewhere W of 60W. Farther east,\na weak 1016 mb low pressure is located near 29N59W. A trough \nextends from the low center to near 27N60W based on scatterometer\ndata. Scattered showers, with embedded thunderstorms, are ahead \nof these features. The remainder of the forecast area in under \nthe influence of broad 1028 mb high pressure centered north of \nthe region near 35N41W. This pattern is supporting moderate to \nfresh NE to E winds and 5 to 7 ft seas across the basin, with the\nexception of fresh to strong N to NE winds and rough seas from \n19N to 23N E of 22W to the coasts of Mauritania and Western \nSahara. A cold front is approaching the Madeira Islands. Some \nshower activity is along the frontal boundary.\nFor the forecast west of 55W, weak low pressure that has developed\nwell SE of Bermuda will drift west through the weekend then lift\nnorthward and out of the region Mon. Otherwise, high pressure \nwill maintain light to gentle winds N of 23N through the period. \nTo the south, moderate to fresh trades will prevail, with locally\nstrong winds pulsing at times offshore Hispaniola and into the \nWindward Passage. The northern portion of a tropical wave will \nmove across the waters S of about 23N and E of the Bahamas early \nnext week freshening the trades. By Wed, the northern portion of \nanother tropical wave may move across the SE portion of the area,\nincreasing the trades over those waters. \n", "title": "Atlantic Tropical Weather Discussion", "id": "1203792519570653186", "issued": "2026-08-22T00:15:00Z", "wmo": "AXNT20", "source": "NOAA/NWS National Hurricane Center, received via the National Weather Wire Service", "page": "https://hurricane.terrapin.com/text/1203792519570653186"}