956 AXPZ20 KNHC 190825 TWDEP Tropical Weather Discussion NWS National Hurricane Center Miami FL 1005 UTC Sun Mar 19 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 0600 UTC surface analysis and satellite imagery through 0800 UTC. ...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH... The ITCZ extends from 03N110W to 00N127W. Scattered moderate convection has developed from 03N to 06N between 111W and 115W. OFFSHORE WATERS WITHIN 250 NM OF MEXICO... Weak high pressure dominates most of the waters. Light to gentle winds are present most areas, with seas of 2 to 4 ft, except less than 2 ft in the Gulf of California. However, northerly gales have developed in the Gulf of Tehuantepec overnight, and seas there are rapidly increasing from 4 to 7 ft. For the forecast, high pressure building south through the western Gulf of Mexico will cause gale-force gap winds to continue in the Gulf of Tehuantepec into Mon. Winds will then gradually weaken into the middle the the week as the high moves E, away from the area. A weak cold front will approach the waters offshore Baja California Norte Mon, then dissipate as it moves E across the northern Gulf of California Mon night into Tue. Another stronger cold front will cross the same area Tue night into Wed. Fresh SW to W gap winds will develop in the northern Gulf behind the first front and continue until the second front passes. Fresh to locally strong W to NW winds can be expected offshore Baja California Tue into Thu night, along with seas of 8 to 12 ft in NW swell. OFFSHORE WATERS WITHIN 250 NM OF CENTRAL AMERICA, COLOMBIA, AND WITHIN 750 NM OF ECUADOR... Light to gentle variable winds prevail over the offshore waters of Central America and South America along with seas of 3-4 ft in SW swell. Moderate gap winds have developed overnight in the Papagayo Region. For the forecast, except for the gulfs of Papagayo and Panama, light to gentle winds will prevail over the offshore waters through at least Thu night. Moderate to fresh NE gap winds will develop in the region of Papagayo today, then increase to fresh to strong tonight. Fresh to strong winds will continue through Thu night, possibly nearing gale-force Wed evening. Moderate to fresh N to NE gap winds will develop in the Gulf of Panama tonight, extending southward to near 03N and continuing through at least Thu night. Otherwise, northerly swell associated with gap winds in Tehuantepec region will affect the Guatemala and El Salvador offshore waters this afternoon into Mon night. REMAINDER OF THE AREA... A weak surface low and cold front have devolved into a surface trough overnight, that is now located from 30N120W to 27N133W. Winds N and W of this trough are moderate to locally fresh out of the west. Another surface trough is noted from 12N101W to 05N106W and is inducing scattered moderate convection in its vicinity. Winds elsewhere across the waters are mainly gentle, although a zone of moderate to fresh trades extends W of 120W and S of 18N. Seas are 4 to 6 ft, with localized heights to 7 ft where the fresh winds are occurring. The northern surface trough will move W and dissipate today, while the southern one will move E and dissipate tonight. A new cold front will enter NW waters tonight, followed by a stronger front Mon. This stronger front will move east and reach the waters offshore Baja California Tue. Ahead of this front, fresh to strong SW to W winds will develop N of 25N, with strong to possibly gale force NW winds behind it. Seas toward 30N will reach up to 18 ft Tue and Tue night. Winds and seas associated with this second front will start to diminish Wed evening. Otherwise, moderate to fresh trade winds will continue across the western tropical forecast waters, increasing to fresh to strong Wed evening and continuing through the end of the week. $$ KONARIK