234 AXPZ20 KNHC 290146 TWDEP Tropical Weather Discussion NWS National Hurricane Center Miami FL 0405 UTC Fri Jan 28 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 0000 UTC surface analysis and satellite imagery through 0240 UTC. ...SPECIAL FEATURES... Gulf of Tehuantepec Gale Warning: High pressure is building across eastern Mexico and the Gulf of Mexico in the wake of a strong cold front. The pressure gradient between this building high pressure and the equatorial trough in the eastern north Pacific has ushered in the latest gale- force gap wind event. Winds will peak as a strong gale late tonight and Sat before diminishing below gale force Sun afternoon. Winds will remain strong through Sun night. Seas will peak near 20 ft with a large area of 12 ft reaching to 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 07N78W to 05N106W. The ITCZ extends from 05N106W to 08N121W. It resumes from 06N130W to 04N140W. Scattered moderate convection is noted from 02N to 06N between 78W and 88W. Scattered moderate isolated strong convection is noted from 08N to 15N between 119W and 130W, and from 10N to 20N between 130W and 140W. OFFSHORE WATERS WITHIN 250 NM OF MEXICO Please see the Special Features section above for more information on an upcoming Gulf of Tehuantepec gap wind gale event. Gale- force gap winds prevail over the Gulf of Tehuantepec with seas to 8 ft. Fresh to strong NW winds are along the Gulf of California. Seas over this area are in the 6-8 ft range over the northern Gulf of California and 3-5 ft elsewhere. Gentle to moderate winds prevail over the remainder of the open waters off Mexico, with wave heights in the 4-6 ft range. For the forecast, see the Special Features section for the Gulf of Tehuantepec gale-force gap wind event. High pressure over the Great Basin is supporting fresh to strong NW winds over the entire Gulf of California through Sat morning. Building high pressure west of California early next week is expected to produce increasing NW winds and building seas over the waters west of Baja California Norte and the N Gulf of California. 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. Light to moderate winds are noted elsewhere with seas of 3-5 ft. For the forecast, fresh to strong NE winds will pulse in the Papagayo region Sat night through Mon night. Moderate N winds in the Gulf of Panama will reach fresh speeds at night Sat through Mon. Over the remainder of the area, winds will remain tranquil for the next several days. Large NW swell from an upcoming Gulf of Tehuantepec gap wind event will spread to the Guatemala and El Salvador offshore waters Sat morning through Sun morning. REMAINDER OF THE AREA A surface trough extends from 14N124W to 04N130W. 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 8 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. These conditions are expected Sat through Sun night. 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. $$ AL