000 AXPZ20 KNHC 300943 TWDEP Tropical Weather Discussion NWS National Hurricane Center Miami FL 0405 UTC Sat Jan 30 2021 Tropical Weather Discussion for the eastern Pacific Ocean from the Equator to 32N, east of 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 0840 UTC. ...SPECIAL FEATURES... Gulf of Tehuantepec Gale Warning: Gale force northerly gap winds have diminished to around 30 kt across the Gulf of Tehuantepec tonight, and the gale warning has ended. Winds across Tehuantepec will gradually diminish through Sat afternoon, and fall below 20 kt by late afternoon. Large seas to 12 ft extend downwind to 14N95.5W, while seas 8 ft and greater spread as far west as 110W tonight. Looking ahead, more gales are likely Sun night through early next week as another strong cold front moves across the SW Gulf of Mexico. Please see the latest High Seas Forecast at http://nhc.noaa.gov/text/MIAHSFEP2.shtml for more details. ...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH... The monsoon trough extends from 11N73W to 04.5N89W. The ITCZ extends from 04.5N89W to 04N105W to 11N111W to 10.5N130W to 02.5N140W. Scattered moderate isolated strong convection is noted from 02.5N to 13N between 113W and 125W and from 05N and 18N between 125W and 140W. OFFSHORE WATERS WITHIN 250 NM OF MEXICO... Please see the Special Features section for details on a Gale Warning for the Gulf of Tehuantepec region. Outside of the Gulf of Tehuantepec, gentle to moderate NW winds prevail across the offshore waters of northern and central Baja California, where seas are 6-10 ft in NW swell. This is occurring behind a dissipating cold front that extends from NW Mexico southwestward across the northern Gulf of California and continuing across central Baja to beyond 23N120W. Weak high pressure will build across the region today and freshen the local wind flow across the Baja waters, while fresh to locally strong northerly winds develop inside the Gulf of California Sat afternoon through Mon. Seas are expected to build to 7-8 ft across central portions of the Gulf Sun night. Locally strong winds are expected through Sat night along the coast of Cabo Corrientes. Large NW swell off Baja California Norte has peaked in size and will continue to propagate southward across the waters west of the southern Mexico through Sat, while slowly subside offshore of Baja California. New NW swell will reach the waters off Baja California Norte by Mon night. OFFSHORE WATERS WITHIN 250 NM OF CENTRAL AMERICA, COLOMBIA, and WITHIN 750 NM OF ECUADOR... Strong offshore winds prevail across the Gulf of Papagayo tonight, with fresh to strong northerly winds also across the Gulf of Panama and extend to 04N. Light to gentle winds are noted elsewhere. Seas are in the 7-10 ft range in and downwind of the Gulf of Papagayo, 6-9 ft downwind of the Gulf of Panama, and 3-6 ft elsewhere. Fresh to strong offshore winds will prevail across the Papagayo region through Sun, then will pulse through the middle of next week. Large seas generated from the Papagayo winds will merge with NW swell moving away from Tehuantepec, and also mix with W swell moving through the region to create confused seas of 7-10 ft across the offshore waters of El Salvador and Guatemala tonight into Sat. Fresh to strong northerly winds will prevail in the Gulf of Panama through early Sun, with seas remaining up to around 8 ft. Generally moderate winds are expected elsewhere. REMAINDER OF THE AREA... Gentle to moderate anticyclonic winds prevail across the waters north of the dissipated cold front along 22N-23N, with seas as high as 11 ft north along 30N124W. The large NW swell associated with the front will move south-southeastward across the regional waters through the weekend. The pressure gradient between broad and weak high pressure behind the front and lower pressures in the vicinity of the ITCZ is supporting fresh NE trade winds north of the ITCZ to 23N, west of 115W. Seas in this area are in the 8 to 11 ft range in mixed NW swell and NE tradewind swell. Trade winds will increase today through Sun to the W of 120W as high pressure builds north of the area behind the cold frontal remnants. New NW swell will propagate into the NW waters Sat night. $$ Stripling