000 AXPZ20 KNHC 250307 TWDEP Tropical Weather Discussion NWS National Hurricane Center Miami FL 0405 UTC Sat Mar 25 2023 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 0305 UTC. ...SPECIAL FEATURES... Pacific Significant Swell Event: Altimeter satellite data indicate that combined seas of 10 to 14 ft are found over much of the tropical Pacific, especially north of 04N and west of 110W. Fresh to strong trade winds are present from the ITCZ to 25N and west of 115W. Seas generated from the large area of trades are mixing with longer-period NW swell. The winds will diminish slightly, allowing the wave heights to subside below 12 ft through late Sun. Large NW swell to 14 ft will also impact the waters off Baja California Norte late Sat into Sun, but this will also subside through late Sun. Looking ahead, yet another NW to N swell event with seas of 12 ft or greater may propagate south of 30N by the middle of next week behind a weakening cold front. Please read the latest High Seas Forecast at https://www.nhc.noaa.gov/text/MIAHSFEP2.shtml for more details. ...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH... A surface trough extends from the coast of Panama near 08N78W to 06N94W. The ITCZ stretches from 06N94W to 02N120W to beyond 03N140W. Scattered moderate convection is observed from 05N to 10N and between 101N and 125W. OFFSHORE WATERS WITHIN 250 NM OF MEXICO... A broad subtropical ridge north of the eastern tropical Pacific extends southwestward to the Revillagigedo Islands. The pressure gradient between the high pressure system and lower pressures over Mexico support fresh to strong northerly winds in the offshore waters of Baja California. Seas in these waters are 8-11 ft. Fresh to locally strong N winds are also evident over the southern portion of the Gulf of California, and off Cabo Corrientes. Wave heights of 7-10 ft are occurring between Cabo Corrientes and Los Cabos. Elsewhere in the Mexican offshore waters, including the Gulf of Tehuantepec, light breezes and moderate seas are noted. For the forecast, strong high pressure will remain in control of the weather pattern across the region through early next week. Expect fresh to locally strong NW to N winds through Sat night, with pulses of fresh to locally strong winds also over the southern Gulf of California and near Cabo Corrientes. NW swell of 8-11 ft offshore Baja California will linger into Sat. This will be reinforced by another group of NW swell expected to reach the waters north of Punta Eugenia by Sat afternoon with seas of 10-14 ft, with the highest wave beyond 90 nm. This swell will decay late Sun. Looking ahead, fresh to strong SW to W winds may develop in the northern Gulf of California Wed ahead of an approaching cold front. OFFSHORE WATERS WITHIN 250 NM OF CENTRAL AMERICA, COLOMBIA, AND WITHIN 750 NM OF ECUADOR... Moderate to fresh easterly trade winds are found in the Gulf of Papagayo region, extending westward to 90W. Seas in these waters are 3-5 ft. Moderate to locally fresh northerly winds are noted in the Gulf of Panama, along with seas of 2-4 ft. Elsewhere, light to gentle winds and slight seas prevail. For the forecast, fresh to occasionally strong gap winds will pulse across the Gulf of Papagayo and the coast of Nicaragua, mainly at night Sat night through mid week. Gentle to moderate winds and slight seas will prevail elsewhere through the forecast period. REMAINDER OF THE AREA... Please see Special Features section above for details on a significant swell event over the west-central waters. The strong ridge north of the tropical eastern Pacific waters and the lower pressures in the deep tropics sustain a large area of fresh to strong winds, primarily south of 25N and west of 110W. Seas in these waters are 8-13 ft, with the highest seas occurring from 06N to 23N and west of 115W. Moderate or weaker winds and slight to moderate seas are prevalent. For the forecast, the area of fresh to strong winds will diminish late this weekend as the high pressure weakens ahead of a cold front approaching from the northwest. Mainly gentle to moderate winds and slight to moderate seas will prevail elsewhere. The cold front is forecast to move across the waters north of 25N Tue and Wed. $$ DELGADO