000 AXPZ20 KNHC 280245 TWDEP Tropical Weather Discussion NWS National Hurricane Center Miami FL 0405 UTC Sat Dec 28 2019 Tropical Weather Discussion for the eastern Pacific Ocean from the Equator to 32N, east of 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 0245 UTC. ...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH... The monsoon trough extends from 08N78W to 08N83W to 05N92W to 08N110W. The ITCZ begins near 08N110W and continues to 11N116W, then resumes near 11N120W to 07N130W to 07N140W. Scattered moderate convection and isolated tstms are from 03N to 09N E of 87W, from 06N to 10N between 102W and 115W, and W of 120W. A surface trough extends from 09N119W to 15N116W. Scattered moderate convection associated with it extends from 10N to 18N between 109W and 119W. OFFSHORE WATERS WITHIN 250 NM OF MEXICO... A cold front extends from SE NW Mexico to the coast of Baja California Sur near 24N112W to 20N120W to 19N129W. The front will continue to move SE while weakening tonight and dissipate near Cabo San Lucas Saturday morning. Moderate to fresh NW winds are behind the front with the strongest winds being N of Punta Eugenia. Large NW swell associated with the front support sea heights up to 13 ft spreading just south of Cabo San Lazaro. Winds and seas along the Baja offshores will diminish tonight. However, large NW swell will continue to propagate southeastward to south of Jalisco offshore waters through Sunday night before subsiding. A new cold front is forecast to enter the Baja California Norte offshore waters on Monday afternoon along with long period swell with sea heights reaching 13 ft. The front will reach the region near Cabo San Lazaro in Baja California Sur by Wednesday morning before dissipating near Cabo San Lucas during the night hours. Large swell with 23 second period will impact the offshores of Baja, Tuxpan and Guerrero through Friday. Moderate to fresh NW winds are expected in the central and southern Gulf of California Sun and Monday. Otherwise, strong high pressure will build over the Gulf of Mexico early next week, and will support a short-lived gap wind event in Tehuantepec Mon night through Wed. Winds will likely reach near gale force Tue and Wed with seas to 10 ft. OFFSHORE WATERS WITHIN 250 NM OF CENTRAL AMERICA, COLOMBIA, AND WITHIN 750 NM OF ECUADOR... Fresh to strong winds are expected across the Gulf of Papagayo through Sunday, then resuming again early on Wednesday. Otherwise, light to gentle variable winds will dominate elsewhere across the offshore waters of Costa Rica, Panama, Colombia, and Ecuador through Sun. Gentle to moderate S to SW winds are expected afterwards through Tuesday. REMAINDER OF THE AREA... A weakening cold front extending from Baja California Sur near 24N111W to 20N120W to 19N127W will continue to move SE and dissipate near 19N tonight. Surface ridging dominate the remainder forecast waters N of 15N. The pressure gradient between the ridge and lower pressure along the ITCZ continue to support moderate to fresh NE to E winds S of 22N W of 115W. Long period NW swell associated with the front continue to support sea heights of 8 to 12 ft N of 08N W of 113W. The ridge will strengthen by Sat evening and fresh to strong winds will develop N of the ITCZ to near 25N through the middle of the week. Otherwise, a new cold front will enter the northern waters on Mon and extend from central Baja to 23N120W to 20N135W by Tue morning. Fresh to strong N to NW winds will follow the front through Tuesday morning, reaching near 25N. Winds will diminish afterwards, however large NW swell with sea heights up to 15 ft will dominate the northern waters through the middle of the week when seas will start to subside. $$ Ramos