000 AXPZ20 KNHC 230159 TWDEP Tropical Weather Discussion NWS National Hurricane Center Miami FL 0405 UTC Sat Dec 23 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 monsoon trough extends from 06N77W to 05N90W. The ITCZ extends from 05N90W to beyond 06N140W. Scattered moderate and isolated strong convection is noted from 04N-10N and W of 126W. Scattered moderate convection prevails from 03N-11N between between 94W-108W. ...OFFSHORE WATERS WITHIN 250 NM OF MEXICO... A cold front extends from 31N113W to 21N121W. Moderate to fresh W to NW winds are occurring. Near gale-force NE winds prevail across the Gulf of Tehuantepec, with seas to 10 ft. Otherwise, a weak pressure gradient prevails across the area with moderate or less winds occurring. Seas are 3-6 ft in the area, except for waters west of Baja California Norte where seas are 8-10 ft in NW swell. Seas in the Gulf of California are 2-3 ft. For the forecast, the cold front will continue to move E through waters W of Baja California as well as most of the Gulf of California into Sat before gradually dissipating Sat night. Near gale- force winds will prevail across the Tehuantepec region through early Sat, with seas to 10 ft. Elsewhere, winds across the area will be moderate or weaker. High pressure building over the U.S. Great Basin should funnel fresh to locally strong NW winds over the Gulf of California Mon through Tue night. NW swell will propagate southeastward across the waters west of Baja California through tonight before diminishing Sat. The next set of large NW swell will move into the Baja California Norte waters Sun through Mon. ...OFFSHORE WATERS WITHIN 250 NM OF CENTRAL AMERICA, COLOMBIA, AND WITHIN 750 NM OF ECUADOR... A significant pressure gradient in the area continues to support fresh to strong NE winds over the Gulf of Papagayo region. Seas are 6 to 8 ft within this area. Fresh N winds are also occurring over the Gulf of Panama. Elsewhere, winds are moderate or weaker. NW swell with seas to 8 ft in the Guatemala offshore waters are being generated by Gulf of Tehuantepec gap winds. For the forecast, fresh to strong NE winds will prevail over the Gulf of Papagayo region into Sat night. Fresh N winds will continue pulse over the Gulf of Panama through the weekend. Elsewhere, winds are expected to be moderate or weaker for the next several days. NW swell generated by strong gap winds in the Gulf of Tehuantepec will continue to impact the Guatemala-El Salvador offshore waters into Sat. ...REMAINDER OF THE AREA... NW swell with seas of 8 to 10 ft are continuing to impact the waters north of 08N and west of 119W. These seas will gradually diminish into Sat night, but remain above 8 ft through Sun. Winds in this area are generally moderate to fresh and NE. Elsewhere, the trades are moderate or weaker with seas 5-7 ft. For the forecast, the NE trades will weaken to moderate across the waters Sat. A new set of significant NW swell will arrive in the NW waters Sun, with seas Sun night and Mon exceeding 12 ft as the swell propagates SE into early next week. $$ Konarik