{"msg": "312\nAXPZ20 KNHC 200328\nTWDEP \nTropical Weather Discussion\nNWS National Hurricane Center Miami FL\n0405 UTC Tue Oct 20 2026\nTropical Weather Discussion for the eastern Pacific Ocean from\n03.4S to 30N, east of 120W including the Gulf of California, and\nfrom the Equator to 30N, between 120W and 140W. The following\ninformation is based on satellite imagery, weather observations,\nradar, and meteorological analysis.\nBased on 0000 UTC surface analysis and satellite imagery through\n0230 UTC.\n...SPECIAL FEATURES...\nPost-Tropical Cyclone Trudy is centered near 19.5N 108.0W at\n20/0300 UTC, moving north at 2 kt. Estimated minimum central\npressure is 1005 mb. Maximum sustained wind speed is 30 kt with\ngusts to 40 kt. Peak seas are near 9 ft. The system is drifting \nnorthward, but is expected to move slowly to the west-northwest \nover the next day or so until dissipation.\nPlease read the latest HIGH SEAS FORECAST issued by the National\nHurricane Center at website - \nhttps://www.nhc.noaa.gov/text/MIAHSFEP2.shtml and the last NHC \nForecast/Advisory and Public Advisory at www.hurricanes.gov for \nmore details.\nGulf of Tehuantepec Gale Warning: A strong pressure gradient in\nthe area continues to force gale-force northerly gap winds into \nthe Gulf of Tehuantepec. Seas in these waters are rough to very\nrough. These conditions will continue into Tue night. Winds will\ndiminish to strong Wed, but are likely to increase to gales \nagain Thu night and Fri. \nSouth of Southern Mexico (Invest EP94): Showers and thunderstorms\nare beginning to show signs of organization in association with \na trough of low pressure located several hundred miles south- \nsouthwest of the coasts of Guatemala and El Salvador. \nEnvironmental conditions appear conducive for development, and a \ntropical depression is expected to form in the next day or so as \nthe system moves westward to west-northwestward at around 10 kt,\nremaining well offshore of Central America and southern Mexico. \nThere is a high chance of tropical formation of this low within \nthe next 48 hours and over the next 7 days. \nPlease read the latest High Seas Forecast issued by the National \nHurricane Center at website \nhttps://www.nhc.noaa.gov/text/MIAHSFEP2.shtml for further \ndetails.\n...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...\nThe monsoon trough extends from 09N84W to a 1009 mb low near\n10.5N94W to 04N107W. The ITCZ stretches from 04N107W to beyond \n05N140W. Scattered moderate to isolated strong convection is \nnoted from 00N to 15N E of 104W and from 01N to 08N and W of\n129W. \n...OFFSHORE WATERS WITHIN 250 NM OF MEXICO...\nPlease see the Special Features section above for information on\nTropical Storm Trudy and on a Gale Warning in the Gulf of \nTehuantepec. \nElsewhere outside from Trudy and the T'pec gale area, a weak \npressure gradient is leading to mainly gentle NW winds and \nmoderate seas.\nFor the forecast, Tropical Storm Trudy will become a remnant low\nand move to 19.3N 108.6W Tue morning, 19.4N 109.2W Tue evening, \n19.6N 109.9W Wed morning, and dissipate Wed evening. High \npressure settled over Mexico will continue to funnel northerly \ngap winds of gale-force into the Gulf of Tehuantepec into Tue \nnight, along with rough to very rough seas. Winds will diminish \nto strong Wed, but are forecast to increase to gale-force again \nThu night through Fri. Showers and thunderstorms are beginning to\nshow signs of organization in association with a trough of low \npressure located several hundred miles south- southwest of the \ncoasts of Guatemala and El Salvador. Environmental conditions \nappear conducive for development, and a tropical depression is \nexpected to form in the next day or so as the system moves \nwestward to west-northwestward at around 10 kt, remaining well \noffshore of Central America and southern Mexico. There is a high \nchance of tropical formation of this low within the next 48 hours\nand over the next 7 days. \n...OFFSHORE WATERS WITHIN 250 NM OF CENTRAL AMERICA, COLOMBIA, \nAND WITHIN 750 NM OF ECUADOR...\nRough seas coming from gale-force gap winds in the Gulf of \nTehuantepec continue to impact waters well offshore Guatemala. \nOtherwise, gentle to moderate winds and moderate seas prevail.\nFor the forecast, rough seas deriving from gap winds in the Gulf\nof Tehuantepec will continue well offshore Guatemala into Wed.\nWinds will pulse nightly to fresh in the Papagayo region, with\nlocally strong pulses possible late this week. Moderate or \nweaker winds and moderate seas will prevail.\n...REMAINDER OF THE AREA...\nModerate to fresh NE winds and seas of 5 to 7 ft are impacting \nwaters N of the ITCZ and W of 128W. Fresh to strong winds \noriginating from a gale-force gap wind episode in the Gulf of \nTehuantepec are impacting waters as far south as 06N between 94W \nand 100W, along with rough seas. Elsewhere, mainly gentle winds \nand moderate seas prevail. \nFor the forecast, the aforementioned gap winds with continue to\nbring periods of fresh to strong N winds and rough seas to waters\nN of 05N between 92W and 103W into mid-week. A cold front will\nmove S of 30N tonight, bringing fresh to strong winds and very\nrough seas to waters N of 26N through Wed, with rough seas\nreaching as far south as 20N Thu. Showers and thunderstorms are \nbeginning to show signs of organization in association with a \ntrough of low pressure located several hundred miles south- \nsouthwest of the coasts of Guatemala and El Salvador. \nEnvironmental conditions appear conducive for development, and a \ntropical depression is expected to form in the next day or so as \nthe system moves westward to west-northwestward at around 10 kt, \nremaining well offshore of Central America and southern Mexico. \nThere is a high chance of tropical formation of this low within \nthe next 48 hours and over the next 7 days. \n", "title": "Eastern Pacific Tropical Weather Discussion", "id": "1220268912656056322", "issued": "2026-10-20T04:05:00Z", "wmo": "AXPZ20", "source": "NOAA/NWS National Hurricane Center, received via the National Weather Wire Service", "page": "https://hurricane.terrapin.com/text/1220268912656056322"}