000 AXPZ20 KNHC 190141 TWDEP Tropical Weather Discussion NWS National Hurricane Center Miami FL 0405 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 0000 UTC surface analysis and satellite imagery through 0130 UTC. ...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH... The ITCZ extends from 03N110W to 00N124W. No significant convection is present at this time. OFFSHORE WATERS WITHIN 250 NM OF MEXICO... Light to gentle winds dominate most of the waters with seas of 2 to 4 ft, except less than 2 ft in the Gulf of California. Fresh to strong gap winds are developing in the Gulf of Tehuantepec. For the forecast, as high pressure builds through the Gulf of Mexico, N winds in the Gulf of Tehuantepec will increase to gale force overnight, then into Mon, before gradually weakening into the middle of next week as the high pressure moves E, away from the area. A cold front will approach the Mon night, then dissipate as it crosses the northern Gulf Tue into Tue night. Another stronger front will follow closely behind and cross the area Wed. Fresh to strong SW gap winds will develop in the northern Gulf of California ahead of the front Mon night and continue into Wed. Fresh NW winds will also affect the Baja California offshore waters Tue through Thu, along with seas of 8 to 12 ft in NW swell. Elsewhere, mostly benign marine conditions will prevail through early next week. 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. For the forecast, except for the gulfs of Papagayo and Panama, light to gentle winds will prevail over the offshore waters through Thu night. Moderate to fresh NE gap winds will develop in the region of Papagayo Sun and increase to fresh to strong speeds Sun night. Fresh to strong winds will then continue through Thu night likely reaching near gale-force Wed evening. Moderate to fresh N to NE gap winds will develop in the Gulf of Panama Sun night, extending southward to near 03N and continuing through Thu night. Otherwise, northerly swell associated with gap winds in Tehuantepec region will affect the Guatemala and El Salvador offshore waters Sun afternoon into Mon night. REMAINDER OF THE AREA... A weak surface ridge along 21N is retreating westward away from the region. A 1016 mb low pressure is near 26N119W. A weakening cold front is noted from 30N135W to 27N140W. A surface trough from around 12N100W to 06N106W is inducing scattered moderate convection. Winds behind the weak cold front are moderate to fresh, with moderate to fresh NE to E trades W of 120N between the equator and 18N. Otherwise, mainly light to gentle winds prevail. Seas in the zones of moderate to fresh winds are 5 to 7 ft, with seas elsewhere ranging from 4 to 6 ft. The cold front will move east and dissipate as it reaches the offshore waters of Baja California Norte Sun night. Another cold front will enter the NW forecast waters Mon, bringing strong to near gale force NW to N winds and seas of up to 18 ft in its wake, mainly N of 25N. This front will reach the Baja California Norte offshore waters 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