000 AXPZ20 KNHC 300844 TWDEP Tropical Weather Discussion NWS National Hurricane Center Miami FL 1005 UTC Sun Jan 30 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 0600 UTC surface analysis and satellite imagery through 0830 UTC. ...SPECIAL FEATURES... Gulf of Tehuantepec Gale Warning: Strong high pressure prevails across the Gulf of Mexico. The pressure gradient between this area of high pressure and the equatorial trough in the eastern north Pacific continues to support gale- force winds across the Gulf of Tehuantepec region. The area of high pressure will start to weaken and shift eastward today. This will loosen the pressure gradient enough to diminish winds below gale- force by this afternoon. Winds will remain strong through tonight before diminishing further by Mon morning. Seas are peaking near 16 ft, with a large plume of 12 ft seas reaching as far as 11N100W. 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 07N78W to 05N84W to 06N98W. The ITCZ extends from 06N98W to 05N114W to 07N124W. It then resumes from 05N135W to 04N140W. Scattered moderate convection is from 00N to 04N east of 85W. Scattered moderate isolated strong convection from 12N to 22N between 120W and 131W, and from 15N to 20N between 131W and 140W. 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. Gale- force gap winds prevail over the Gulf of Tehuantepec region with seas to 16 ft. Gentle to moderate winds prevail over the Gulf of California as well as west of the Baja California peninsula. Light to gentle winds prevail elsewhere over the open waters off Mexico. Seas are in the 1-3 ft range over the Gulf of California and 4-6 ft elsewhere over the open waters off Mexico. For the forecast, see the Special Features section for the Gulf of Tehuantepec gale-force gap wind event. Building high pressure west of California will produce increasing NW winds and building seas over the waters west of Baja California Norte and the northern Gulf of California the middle of next week. 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 6-8 ft range. Fresh to strong winds and seas to 6 ft are over the Gulf of Panama. Light to gentle winds and seas of 4-5 ft are elsewhere. For the forecast, fresh to near gale force NE winds will pulse at night in the Papagayo region through Mon night. Moderate NE winds will then continue through the middle of the week. Moderate to fresh N winds in the Gulf of Panama will continue through Mon, increasing to fresh to strong speeds at night. Large NW swell from an ongoing Gulf of Tehuantepec gap wind event will continue to affect the Guatemala and El Salvador offshore waters through this morning. Light to gentle winds are expected to remain elsewhere through Thu. REMAINDER OF THE AREA A surface trough extends from 17N128W to 07N131W. The pressure gradient between high pressure over the northern waters and the surface trough is supporting fresh to strong winds in the vicinity of the trough, with seas to 9 ft. Gentle to moderate winds prevail elsewhere with seas in the 5-7 ft range. For the forecast, the surface trough is forecast to amplify today while it moves NW. Fresh to strong winds will continue in the vicinity of the trough, with seas peaking near 11 ft. It is possible that a low could briefly form along the trough. If this transpires, then near- gale to gale force winds could occur over the NW open forecast waters. 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. $$ AL