000 AXPZ20 KNHC 300351 TWDEP Tropical Weather Discussion NWS National Hurricane Center Miami FL 0405 UTC Tue Nov 30 2021 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 0000 UTC surface analysis and satellite imagery through 0300 UTC. ...SPECIAL FEATURES... Gulf of Tehuantepec Gale Warning: The pressure gradient between a surface ridge over the Gulf of Mexico and lower pressure south of the Gulf of Tehuantepec associated with the monsoon trough continue to support N to NE gale-force winds across the Gulf of Tehuantepec region tonight. Peak seas are estimated at 13 ft. Winds are forecast to diminish below gale-force Tue morning then strong gap winds will remain through the weekend. Please see the latest NWS High Seas Forecast issued by the National Hurricane Center at website://www.nhc.noaa.gov/text/MIAHSFEP2.shtml for more information. ...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH... The monsoon trough extends from NW Colombia near 09N74W to 09N84W to 06N94W to low pres 1012 mb near 08N107W to 08N112W. The ITCZ continues from 08N112W to 08N130W to beyond 11N140W. Numerous moderate isolated strong convection is N of 04N E of 82W. Scattered moderate convection is from 07N to 11N between 103W and 111W, and from 06N to 10N between 115W and 121W. OFFSHORE WATERS WITHIN 250 NM OF MEXICO Please see the Special Features section above for details on an ongoing gale-force gap wind event in the Gulf of Tehuantepec. Gale-force N to NE winds are ongoing in the Gulf of Tehuantepec region and are forecast to continue through Tue morning. Strong gap winds will then continue across this region Tue through the weekend, with winds becoming strongest at night. Moderate to locally fresh NW winds prevail across the southern Gulf of California to the offshore waters of Jalisco with seas 3 to 4 ft. Similar wind conditions are along the Baja California offshore waters with seas of 5 to 6 ft in NW swell. Conditions will prevail through Tue for both regions. Moderate to locally fresh NW winds will resume at the entrance of the Gulf, and the southern half of the Gulf of California Wed night and along the Baja offshores on Thu, continuing through Sat night. Otherwise, light to gentle variable winds will dominate the remainder offshore waters through the forecast period. OFFSHORE WATERS WITHIN 250 NM OF CENTRAL AMERICA, COLOMBIA, and WITHIN 750 NM OF ECUADOR Fresh to strong NE winds in the Papagayo region will continue through Sat with seas building up to 8 ft Tue and Wed. Moderate to locally S to SW winds are expected S of the monsoon trough or roughly S of 06N through the weekend with seas to 5 ft in SW swell. Otherwise, moderate N to NE winds are forecast for the Gulf of Panama through Tue. Heavy showers and thunderstorms ongoing across the Colombia and Panama offshore waters are forecast to prevail through at least Wed. REMAINDER OF THE AREA... A 1027 mb center of high pressure near 37N130W extends a ridge southward to near 22N113W. Scattered moderate convection extends within 60 nm either side of a line from 21N114W TO 16N121W. This marks the moisture boundary between the SE periphery of the ridge and moist subtropical air to the south. The pressure gradient between the high pressure and lower pressure associated with the ITCZ is supporting moderate to fresh NE to E trades north of the ITCZ to near 23N and west of about 124W. Seas are 5-8 ft across this region. Gentle to moderate trades are elsewhere with seas in the 5 to 7 ft range. NW swell to 8 ft has begun to move into the far NW forecast waters this afternoon and will maintain seas near 8 ft across these NW waters through Tue night. Moderate to fresh winds and seas to 8 ft will continue mainly from 16N to 25N and W of 130W through the middle of the week as the ridge remains nearly stationary. $$ Ramos