000 AXPZ20 KNHC 230952 TWDEP Tropical Weather Discussion NWS National Hurricane Center Miami FL 1005 UTC Sat Mar 23 2024 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 0930 UTC. ...SPECIAL FEATURES... Gulf of California: A cold front will move across the Gulf of California later this evening through Sun. Gale force winds will develop in the northern Gulf this evening and continue through Sun morning. Seas could build to 8 to 9 ft near the highest winds. Strong to near gale force winds will continue across the northern and central Gulf through Sun night into Mon morning as the cold front dissipates. Conditions will improve later on Mon into Mon night. Please read the latest High Seas Forecast at https://www.nhc.noaa.gov/text/MIAHSFEP2.shtml for more information. ...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH... A surface trough extends off the coast of Costa Rica near 08N82W to 07N100W to 00130W. Scattered moderate convection is noted from 03N to 09N between 101W and 133W. ...OFFSHORE WATERS WITHIN 250 NM OF MEXICO... Please see the Special Features section for more information on the Gale Warning in the Gulf of California. Surface ridging extends across the area. This is supporting gentle to moderate northerly winds off the Baja California and off the southwest Mexico offshore waters along with 4 to 6 ft seas. Light to gentle winds are ongoing along the Gulf of California and the southern Mexico offshore waters. Seas over these regions are in the 4 to 6 ft range, except to 3 ft in the Gulf of California. For the forecast, a cold front will move through the Baja California and northern Gulf of California offshore waters today. Gale force winds are expected to begin in the northern Gulf by this evening and continue through Sun morning. Seas are expected to build 8 to 9 ft. Strong winds will persist in the northern and central Gulf Sun through Mon morning, with conditions improving by Mon afternoon. Meanwhile, fresh to strong winds will follow the front across the Baja California offshore waters with rough to very rough seas tonight through Mon. Winds off the Baja Peninsula will diminish to moderate speeds Mon night and seas will subside below 8 ft by Tue night into Wed. Otherwise, a brief gap wind event is forecast for the Tehuantepec region later today into tonight, bringing fresh to strong winds to the region along with 5 to 7 ft seas. ...OFFSHORE WATERS WITHIN 250 NM OF CENTRAL AMERICA, COLOMBIA, AND WITHIN 750 NM OF ECUADOR Light to gentle variable winds and moderate seas are ongoing across the Central America offshore waters as well as the offshore zones between the coast of Ecuador and the Galapagos Islands. Isolated showers are noted off the coast of Costa Rica and Panama. For the forecast, light to gentle variable winds and moderate seas are forecast to prevail through the middle of next week. ...REMAINDER OF THE AREA... A cold front extends from 30N124W to 23N131W. Strong high pressure behind this front supports moderate to fresh northerly winds and 7 to 9 ft seas in NW swell. Ahead of the front, surface ridging extending to 07N and 113W. The associated pressure gradient between the ridge and the ITCZ is supporting a broad area of moderate to fresh NE to E winds N of the ITCZ to 16N with 8 to 10 ft seas. Light to gentle breezes are elsewhere under the influence of the ridge, except for moderate northerlies between 110W and 120W. Light to gentle winds are noted south of the ITCZ. Seas range from 5 to 7 ft across the remainder of Pacific waters. For the forecast, shorter period wind waves created by moderate to fresh winds along the ITCZ and W of 110W will merge with the longer period NW swell propagating across the region from the cold front today. The cold front is expected to push eastward through Sun, eventually dissipating by Sun night. Moderate to fresh winds will become fresh to strong winds behind the cold front today through Mon. Seas 8 to 10 ft will follow the front while combining with the wind waves near the ITCZ today into tonight. By Sun, seas could build to 15 ft east of 126W to the Baja California coast. $$ AReinhart