000 AXPZ20 KNHC 291606 TWDEP Tropical Weather Discussion NWS National Hurricane Center Miami FL 1605 UTC Sat Jan 29 2022 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 1520 UTC. ...SPECIAL FEATURES... Gulf of Tehuantepec Gale Warning: Strong high pressure across eastern Mexico and the Gulf of Mexico tightens the pressure gradient against the equatorial trough in the eastern north Pacific, thus leading to the continuation of strong-gale force winds across the Gulf of Tehuantepec region. The strong gales will continue today before starting to gradually diminish tonight and Sun morning. Winds will diminish below gale-force by Sun afternoon, then will remain strong through Sun night. Seas will peak near 20 ft late tonight, with a large plume of 12 ft seas reaching as far as 10N100W. Please read the latest NWS Offshore Zones Forecast issued by the National Hurricane Center at website https://www.nhc.noaa.gov/text/MIAOFFPZ7.shtml for more details. ...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH... A surface trough extends from 06N77W to 08N86W to 04N97W. The ITCZ extends from 04N98W to 04N111W to 09N122W. It resumes from 02N136W to 02N140W. Scattered moderate convection is from 02N to 07N E of 83W. OFFSHORE WATERS WITHIN 250 NM OF MEXICO Please see the Special Features section above for more information on an ongoing Gulf of Tehuantepec gap wind gale event. Strong gale-force gap winds prevail over the Gulf of Tehuantepec region with seas to 17 ft this morning. Strong high pressure over the Great Basin continue to support fresh NW winds along with seas to 5 ft along the Gulf of California. Gentle to moderate N to NE winds are along the offshore waters of Baja California and Nayarit, Mexico with seas to 5 ft in NW swell. Light to gentle variable winds and seas to 5 ft in NW swell are across the remainder SW Mexican offshore waters. For the forecast, see the Special Features section for the Gulf of Tehuantepec gale-force gap wind event. High pressure over the Great Basin will diminish later this morning, and winds along the Gulf of California will diminish to moderate speeds. Strong high pressure will build west of California early next week along with a surface trough just right off the coast. The pressure gradient between these two features will lead to moderate to fresh NW winds over the Baja California Norte offshore waters with seas to 9 ft in NW swell. OFFSHORE WATERS WITHIN 250 NM OF CENTRAL AMERICA, COLOMBIA, and WITHIN 750 NM OF ECUADOR Fresh to strong NE gap winds prevail across the Papagayo region with seas in the 5-6 ft range. Moderate to fresh northerly winds are in the Gulf of Panama and Colombia offshores with seas in the 4 to 5 ft range. Light to gentle variable winds with seas to 5 ft are elsewhere. For the forecast, fresh to near gale force NE winds will pulse in the Papagayo through Mon night. Moderate to fresh N winds in the Gulf of Panama will continue through Mon, increasing to strong speeds at night. Large NW swell from an ongoing Gulf of Tehuantepec gap wind event will spread to the Guatemala and El Salvador offshore waters this morning through Sun morning. Light to gentle winds are expected to remain elsewhere through Wed. REMAINDER OF THE AREA A surface trough extends from 14N124W to 06N128W. High pressure prevails over the waters north of 20N. The pressure gradient between this area of high pressure and the surface trough is supporting fresh to strong winds and seas to 9 ft NE of the trough. Gentle to moderate winds, and seas of 5-7 ft, prevail elsewhere. For the forecast, the surface trough is forecast to amplify during the weekend. The deepening trough will be accompanied by fresh to strong NE to E winds along with building seas within an area roughly bounded from 10N-22N and between 125W-135W. It is possible that a low could briefly form along the trough. If this transpires, then near-gale to gale force winds could occur within that area on Sun. Seas are anticipated to peak near 12 ft. On Mon and Tue, strong high pressure building west of California is expected to produce increasing N to NE winds and building seas north of 27N. The seas will be a product of both the N to NE wind waves and large long-period NW swell. $$ Ramos