000 AXPZ20 KNHC 021005 TWDEP Tropical Weather Discussion NWS National Hurricane Center Miami FL 1005 UTC Sat Nov 2 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 0600 UTC surface analysis and satellite imagery through 0900 UTC. ...SPECIAL FEATURES... Gulf of Tehuantepec Gale Warning: Strong high pressure persists across southeast and south central Mexico, in the wake of a cold front that has now stalled over the SE Gulf of Mexico and far southern Mexico. This continues to fueling gale force northerly gap winds across the Gulf of Tehuantepec, that have diminished to around 35 kt this morning. The plume of strong N to NE winds associated with this event extends well SW of Tehuantepec to near 11N98W. Gale conditions are expected to persist into Sun evening, before winds decrease to strong for the start of next week. Seas of up to 14 ft will gradually subside to near 12 ft this afternoon and then 10-11 ft through Sun, before falling below 8 ft before early next week. 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 the Colombian coast near 80W. Scattered moderate to strong convection is from 03.5N TO 09N E OF 83W. A tropical wave is along 96W, N of 06N northward to the Gulf of Tehuantepec, moving west at 10 kt. The plume of strong to gale force N to NE winds from Tehuantepec is fueling scattered moderate to strong convection from 09N to 12.5N between 94.5W and 102W. A tropical wave extends along 106W, from 05N to 15N, moving west at 10 to 15 kt. Scattered moderate isolated strong convection is from 07N TO 15N between 102W AND 109W. ...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH... The monsoon trough extends from 09.5N74.5W TO 09.5N96W TO 08.5N110W. ITCZ extends from 08N112W TO 10.5N135W to beyond 09.5N140W.. Scattered moderate to isolated strong is evident from 04N to 08N east of 80W. Scattered moderate isolated strong convection is observed from 06N to 11.5N west of 134W. OFFSHORE WATERS WITHIN 250 NM OF MEXICO... Gulf of Tehuantepec: See the Special Features section for details on a Gale Warning. Gulf of California: Strong high pressure over the Great Basin well north of the region continues to support fresh NW to N winds through most of the Gulf of California, with seas 4 to 5 ft. The high pressure is weakening, allowing these conditions to improve by this afternoon with winds diminishing to less than 20 kt and seas subsiding to less than 5 ft. For the remainder of the area, a weak pressure pattern is maintaining generally light breezes, and slight to moderate seas over open waters. Except for locally moderate NE winds near Baja California Sur, these conditions are expected to continue through early next week. OFFSHORE WATERS WITHIN 250 NM OF CENTRAL AMERICA, COLOMBIA, AND WITHIN 750 NM OF ECUADOR... High pressure across the NE Pacific waters extends weakly southward into the area tonight, yielding a modest pressure gradient between this ridge and lower pressure across the tropics. Gentle to moderate winds and slight to moderate seas are observed tonight across the region per ship observations and satellite derived data. Offshore winds around 15 kt prevail across the Papagayo region and will pulse to around 15 to 20 kt each of the next few nights. 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. Seas will build west of 92W off Guatemala through Sat night due to the northerly swell being generated from the gale force gap winds across the Gulf of Tehuantepec. REMAINDER OF THE AREA... High pressure north of the area will maintain a modest pressure gradient north of the tropics and produce gentle to moderate winds north of 20N, and moderate to locally fresh trade winds south of 20N for the next several days. Slight to moderate seas are expected across the regional waters as no significant swell events are expected through Mon. $$ Stripling