Tropical Weather Discussion
Issued by NWS
Issued by NWS
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538 AXPZ20 KNHC 011416 TWDEP Tropical Weather Discussion NWS National Hurricane Center Miami FL 1605 UTC Sun Feb 1 2026 Tropical Weather Discussion for the eastern Pacific Ocean from 03.4S to 30N, east of 120W including the Gulf of California, and from the Equator to 30N, between 120W and 140W. The following information is based on satellite imagery, weather observations, radar, and meteorological analysis. Based on 1200 UTC surface analysis and satellite imagery through 1400 UTC. ...SPECIAL FEATURES... Gulf of Tehuantepec Gale Warning: The pressure gradient between high pressure across eastern Mexico and the eastern north Pacific monsoon trough is supporting strong gale-force winds up to 45 kt, and seas to near 18 ft, in the Tehuantepec region. Winds will very gradually diminish, falling below gale-force by Tue morning. Another gale force gap wind event is possible in Tehuantepec starting the middle of the week. Gulf of Papagayo Gale Warning: Fresh to strong NE to E gap winds in the Gulf of Papagayo will reach near-gale to gale-force tonight through Tue morning as an Arctic high pressure building over the eastern United States helps tighten the pressure gradient. Seas will peak near 12 ft with these winds. Please read the latest High Seas Forecast issued by the National Hurricane Center at https://www.nhc.noaa.gov/text/MIAHSFEP2.shtml for more details. ...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH... The monsoon trough extends from 07.5N78W to 05.5N90W to 06.5N121W. The ITCZ extends from 06.5N121W to 04N130W to beyond 05N140W. Scattered moderate convection is noted from 00N to 08.5N between 77W and 83W, and from 07N to 10N between 124W and 140W. ...OFFSHORE WATERS WITHIN 250 NM OF MEXICO... A Gale Warning is in effect for the Gulf of Tehuantepec through early this week. Please see the Special Features section above for more details. Aside from the Gulf of Tehuantepec, the pressure gradient between surface ridging west of the Baja Peninsula and a surface trough over western Mexico is supporting moderate NW winds in the northern Gulf of California, and offshore Baja California N of Cabo San Lazaro. Seas are slight to moderate over these waters. Elsewhere, winds are moderate or weaker with moderate seas. For the forecast aside from the Gulf of Tehuantepec, a set of NW swell will impact the waters W of the Baja California peninsula late tonight through Tue. Another set of large NW swell will enter the waters off Baja California Norte the end of the week. ....OFFSHORE WATERS WITHIN 250 NM OF CENTRAL AMERICA, COLOMBIA, AND WITHIN 750 NM OF ECUADOR... A Gale Warning is expected for the Gulf of Papagayo starting tonight. Please see the Special Features section above for more details. Fresh to strong winds prevail over the Papagayo region, as well as in the Gulf of Panama. Otherwise, gentle to moderate winds and moderate seas prevail. For the forecast, aside from the Gulf of Papagayo, a gale-force gap wind event over the Gulf of Tehuantepec will produce rough to very rough seas over the western Guatemala and El Salvador waters through the early part of the week, and then again late this week with another gap wind event in the Gulf of Tehuantepec. Swell generated from the Gulf of Papagayo gap wind event will merge with this area to maintain rough and confused seas early this week. Fresh to strong northerly gap winds along with rough seas will impact the Gulf of Panama through Tue night, with similar conditions in the Gulf of Fonseca. ...REMAINDER OF THE AREA... A cold front is over the NW waters from 30N132.5W to 24N140W. Scattered showers are in the vicinity of this front. The front has ushered in a set of large NW swell, with seas in the 8 to 14 ft range behind the front. Elsewhere, surface ridging prevails across the waters north of 20N. The pressure gradient between the ridge and lower pressure in the vicinity of the ITCZ is supporting moderate trades north of the ITCZ to near 18N and west of about 125W. Elsewhere, moderate winds, and moderate seas in mixed swell, prevail. For the forecast, the aforementioned cold front will weaken and dissipate later today. The very rough seas greater than 12 ft will impact the waters N of 20N and W of 130W through today, with the rough seas greater than 8 ft spreading SE to cover the waters NW of 04N140W to 30N120W by early Mon before starting to subside below 8 ft. Seas with this swell will subside below 8 ft by the middle of the week. Another set of large NW swell will move into the NW waters early Tue, and bring rough to very rough seas across the same general waters through the remainder of the week. Fresh to strong southerly winds will impact the NW waters much of this week with a gale-force system just to the NW of 30N140W. $$ Lewitsky