000 AXPZ20 KNHC 110802 TWDEP Tropical Weather Discussion NWS National Hurricane Center Miami FL 1005 UTC Fri Feb 11 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 0750 UTC. ...SPECIAL FEATURES... Gulf of Tehuantepec Gale Warning: Fresh to strong northerly winds will continue to pulse in the Gulf of Tehuantepec through Sun evening. Strong high pressure will surge down the eastern slopes of Mexico behind a cold front moving through the Gulf of Mexico late in the weekend, causing northerly winds in the Gulf of Tehuantepec to increase to gale-force Sun night after midnight. Winds are currently forecast to peak around 45 kt Sun morning through Mon morning. There is a non-zero chance that winds could reach storm force Mon night. Gale-force winds will persist into Wed morning before diminishing as the pressure gradient finally relaxes. Seas will peak around 20 ft by Mon morning, while seas of 8 ft or greater manage to propagate well away from the source region to beyond 10N100W. Refer to the NWS High Seas Forecast issued by the National Hurricane Center at website: https://www.hurricanes.gov/marine/MIAHSFEP2.shtml for more details. ...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH... A surface trough extends from 09N84W to 05N94W. The ITCZ continues from 05N94W to 10N112W, then resumes west of a surface trough from 10N118W to 09N121W to 11N133W. No significant convection along the trough and ITCZ is noted. OFFSHORE WATERS WITHIN 250 NM OF MEXICO Refer to the Special Features section for details on a developing Gulf of Tehuantepec Gale Warning. Fresh to strong northerly winds prevail over the Gulf of Tehuantepec. Moderate winds are blowing across the Gulf of California. Elsewhere, gentle to light winds prevail. Seas are 5 to 7 ft over the Gulf of Tehuantepec, and 4 to 6 ft elsewhere over the open waters off Mexico. Seas of 1 to 3 ft prevail across the Gulf of California. For the forecast, fresh to strong N winds will pulse in the Gulf of Tehuantepec through Sat, increasing to gale force late Sat night through early next week. Fresh to strong winds are possible in the northern Gulf of California and offshore of Baja California Norte Tue night as a cold front moves through the region. Light to gentle winds will prevail elsewhere, reaching moderate speeds off Cabo Corrientes this weekend. OFFSHORE WATERS WITHIN 250 NM OF CENTRAL AMERICA, COLOMBIA, and WITHIN 750 NM OF ECUADOR A surface trough extends from 1008 mb low pressure located over northern Colombia near 10N75W to 06N80W. Scattered moderate and isolated strong convection is noted from 02N to 07.5N between the coast of Colombia and 80W. Fresh to strong offshore winds prevail in the Gulf of Papagayo. Moderate to fresh northerly winds are noted in the Gulf of Panama. Light to gentle winds prevail elsewhere. Seas are in the 4 to 6 ft range across the offshore waters. For the forecast, winds will pulse to fresh to strong each night in the Gulf of Papagayo through early next week. Moderate to fresh winds will pulse in the Gulf of Panama each night through early next week. Light to gentle winds will prevail elsewhere. Fresh seas generated by a Gulf of Tehuantepec gap wind event will propagate into the waters offshore of Guatemala and El Salvador Sun night through early next week, peaking around 15 ft near 11N96W early Mon morning. REMAINDER OF THE AREA High pressure is centered well north of the area with a ridge extending SE into the waters north of 20N. A surface trough is located over the west-central waters from 17N136W to 12N137W. The pressure gradient between these features is supporting fresh to strong winds from roughly 12N to 17N between 130W and 137W. Seas are 8 to 10 ft over this area. Another surface trough is along the ITCZ, extending from 14N114W to 10N115W with moderate winds and 5 to 6 ft in the vicinity. Light to gentle winds are in the vicinity of the ITCZ. Gentle to moderate winds are elsewhere north of the ITCZ, with seas of 5 to 7 ft. Gentle to moderate winds prevail south of the ITCZ, with seas in the 5 to 7 ft range. For the forecast, the low pressure areas and trough will gradually dissipate through tonight allowing for associated winds and seas to diminish and subside. Fairly tranquil marine conditions will then prevail across the open waters through Sun. The pressure gradient will tighten north of the ITCZ Sun night, with trades increasing to moderate to fresh. A cold front may drop south of 30N Tue night, bringing increasing winds and seas over the north central waters toward mid-week. $$ Lewitsky