000 AXPZ20 KNHC 040312 TWDEP Tropical Weather Discussion NWS National Hurricane Center Miami FL 0405 UTC Mon Nov 4 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 0130 UTC. ...SPECIAL FEATURES... Gulf of Tehuantepec Gale Warning: Strong high pressure across the Gulf of Mexico continues to support northerly gale force winds across the Gulf of Tehuantepec with seas peaking to 13 ft. The high will drift eastward tonight, thus allowing for winds to diminish to 30 kt Mon morning. Strong northerly gap winds are then expected to continue across Tehuantepec throughout the week, and will pulse at night to near 30 kt. Please read the latest High Seas Forecast issued by the National Hurricane Center under AWIPS/WMO headers FZPN03 KNHC/HSFEP2 or at website https://www.nhc.noaa.gov/text/MIAHSFEP2.shtml for further details on the Gale Warning. ...TROPICAL WAVES... A tropical wave is along 89W from 03N to 12N, moving west at 10 to 15 kt. No significant convection is associated with this wave. A tropical wave is along 112W from 06N to 17N, moving west at 10 kt. Scattered moderate to isolated strong convection is from 09N to 13N between 103W and 114W. A tropical wave is located along 132W from 03N to 13N, moving west at 10 kt. Scattered moderate convection is from 08N to 13N W of 130W. ...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH... The monsoon trough extends from 06N78W to 09N87W to 07N96W to 11N108W to 08N119W. The ITCZ extends from 08N119W to 06N130N to 07N140W. Scattered moderate convection is from 08N to 13N between 115W and 121W. For further information on convection, see the Tropical Waves Section above. OFFSHORE WATERS WITHIN 250 NM OF MEXICO... Gulf of Tehuantepec: See the Special Features section for details on a Gale Warning. Gulf of California: Weak pressure gradient over the region is supporting variable light to gentle winds across most of the Gulf of California, with seas of 1-2 ft. A strong ridge will build over the Great Basin well north of the area by the end of the week, and winds will increase to moderate to fresh along the Gulf. For the remainder of the area, a weak high pressure ridge extending SE into the region is generally producing gentle to moderate winds across the regional waters, with slight to moderate seas to 6 ft in mainly NW swell over open waters. Except for locally moderate N to NE winds near Baja California Sur, these conditions are expected to continue through the entire week. OFFSHORE WATERS WITHIN 250 NM OF CENTRAL AMERICA, COLOMBIA, AND WITHIN 750 NM OF ECUADOR... Strong high pressure will move N of the Caribbean waters during the week and will support pulses of fresh to strong winds at night in the and downstream the Gulf of Papagayo. Seas are expected to build up to 8 ft during the peak winds. Farther south, gentle to moderate S-SW monsoonal flow, occasionally pulsing to moderate to fresh, will continue across the offshore forecast waters of Costa Rica, Panama, Colombia and Ecuador through the upcoming weekend. REMAINDER OF THE AREA... High pressure north of the area will maintain a modest pressure gradient north of the tropics and produce moderate to fresh tradewinds W of 115W through the week. Slight to moderate seas are expected across the regional waters as no significant swell is expected through Tue. On Tue, long period NW swell will support seas to 8 ft from 10N to 25N W of 125W. This swell will start decaying by Thu, thus allowing seas to subside on Fri. Otherwise, a tropical wave, currently with axis along 112W may enhance winds to fresh to strong in the region from 10N to 20N between 116W and 126W Mon night through Fri. Seas are expected to build to 8 ft in the vicinity of the wave. $$ Ramos