000 AXPZ20 KNHC 040353 TWDEP Tropical Weather Discussion NWS National Hurricane Center Miami FL 0405 UTC Sun Apr 4 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 0000 UTC surface analysis and satellite imagery through 0250 UTC. ...SPECIAL FEATURES... Gulf of Tehuantepec Gale Warning: North to northeast gale-force winds in the Gulf of Tehuantepec will diminish below gale force by early Sun evening. Peak wave heights will be in the 13 to 14 ft range tonight and 11 to 12 ft Sun. Swell generated by these winds will spread well to the southwest of the Gulf of Tehuantepec region to near 10N100W tonight. Gale force winds will briefly pulse again Sun night with seas to 10 ft and diminish to fresh to strong during Mon afternoon. Mariners should exercise caution if transiting in this region due to the hazardous marine conditions. Please read the latest HIGH SEAS FORECAST-https://www.nhc.noaa.gov/text/MIAHSFEP2.shtml for more details. ...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH... A surface trough extends from 07N78W to 04N93W. The ITCZ extends from 04N103W to 03N120W, then resumes from 02N130W to 02N140W. Scattered moderate convection is north of the Equator and east of 82W, and from 01N to 08N between 115W and 128W. OFFSHORE WATERS WITHIN 250 NM OF MEXICO... Please see the Special Features section above for details on gale-force winds in the Gulf of Tehuantepec region. The pressure gradient between a ridge west of Baja California and lower pressure over NW Mexico is supporting fresh to locally strong NW winds over the Baja California Norte offshore waters, with the strongest winds being within 120 nm off the coast mainly N of Punta Eugenia. These conditions are forecast to prevail through Tue night while moderate to locally fresh NW winds are expected over Baja California Sur offshores. Seas will be in the 4 to 7 ft range. Gentle to locally moderate NW winds are along the Gulf of California with seas to 3 ft. Winds are forecast to shift to moderate SE winds on Tue. Elsewhere, light to gentle winds are noted. Wave heights are generally 5 to 6 ft in mixed southwest and northwest swell. OFFSHORE WATERS WITHIN 250 NM OF CENTRAL AMERICA, COLOMBIA, and WITHIN 750 NM OF ECUADOR... Strong east-northeast winds are in the Gulf of Papagayo region. Wave heights in the Papagayo region are in 8-10 ft range, in a mix of northeast and southwest swell. Moderate winds have developed in and downwind of the Gulf of Panama today. Light to gentle winds and 4 to 7 ft seas prevail elsewhere across the region. Strong offshore northeast gap winds will continue across in Papagayo region into Mon. Large seas will continue west of Central America, from northern Costa Rica to Guatemala, from swell generated in the Tehuantepec and Papagayo source areas into Monday. REMAINDER OF THE AREA... High pressure of 1023 mb is analyzed near 30N127W. The resultant gradient between the high and lower pressures in the tropics is supporting fresh northeast to east trade winds from 07N to 17N west of 110W. Wave heights within this area are around 8 ft in mixed north to northwest and southerly swell. Little change is expected through the weekend over this part of the discussion area. In the far NW waters, a low pressure system is expected to meander north of 30N and west of 140W for several days, and drag a weak cold front into the area tonight and Sun. The front is expected to stall and weaken over the far NW waters, but seas generated by this low pressure system are forecast to build to the 8-12 ft range Sun through Mon, with highest seas expected in the far NW part of the area. $$ Ramos