000 AXPZ20 KNHC 280807 TWDEP Tropical Weather Discussion NWS National Hurricane Center Miami FL 1005 UTC Thu Nov 28 2024 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 0600 UTC surface analysis and satellite imagery through 0730 UTC. ...SPECIAL FEATURES... Gulf of Tehuantepec Gale Warning: As high pressure builds down the western Gulf of Mexico behind a cold front, strong N winds will funnel into the Gulf of Tehuantepec early on Fri, with winds reaching gale- force Fri night through Sat. Strong N winds will prevail in the region through early next week. Rough to very rough seas can also be expected. Please read the latest High Seas Forecast issued by the National Hurricane Center at the website - https://www.nhc.noaa.gov/text/MIAHSFEP2.shtml for details. ...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH... The monsoon trough extends from 10N83W to 06N100W. The ITCZ continues from 06N100W to 08N140W. Scattered moderate convection is occurring from 08N to 11N between 114W and 123W. ...OFFSHORE WATERS WITHIN 250 NM OF MEXICO... See Special Features section above for information on gale-force gap winds that will develop in the Gulf of Tehuantepec Fri night. High pressure building into the southwestern United States is leading to gentle to moderate NW winds offshore Baja California and in the northern and central Gulf of California. Light to gentle mainly NW winds dominate the remainder of the waters. Seas are generally 4 to 7 ft, except 1 to 3 ft in the Gulf of California. For the forecast, aside from the gale in the Tehuantepec region, the tightening pressure gradient between building high pressure offshore of Baja California and low pressure over northern Mexico will support moderate to locally fresh NW winds north of Cabo San Lazaro today, and fresh NW winds in the Gulf of California through Sat. ...OFFSHORE WATERS WITHIN 250 NM OF CENTRAL AMERICA, COLOMBIA, AND WITHIN 750 NM OF ECUADOR... Moderate to locally fresh S to SW winds are occurring from the equator northward to 6.5N and east of 91W. Seas of 5 to 7 ft in cross equatorial SW swell prevail across this area. Elsewhere, moderate NE winds are pulsing in the Gulf of Papagayo. Otherwise, gentle winds and seas of 4 to 6 ft prevail across the remainder of the offshore waters. For the forecast, moderate to locally fresh NE winds will pulse in the Gulf of Papagayo today. More persistent winds will develop in this region by Sat night, with fresh NE winds expected early next week. Cross equatorial SW swell leading to locally rough seas offshore of Colombia and Panama will subside today. ...REMAINDER OF THE AREA... A 1021 mb high is centered near 28N123W, and ridging extends across the waters north of the ITCZ, promoting mainly gentle winds north of 17N. Moderate S winds are occurring north of 25N and west of 130W ahead cold front that is pushing into the far NW waters. Elsewhere, moderate to locally fresh NE winds are noted just N of the ITCZ extending to about 17N. Seas are 6 to 8 ft in this region. South of the ITCZ, moderate to locally fresh S winds and moderate seas prevail. For the forecast, low pressure centered near 31N141W will move slowly eastward through Fri before lifting northward. This will support moderate to locally fresh S to SW winds ahead of this system, mainly north of 25N between 128W and 140W, through Fri. Elsewhere, moderate to locally fresh trade winds will prevail west of 110W and S of 16N through early next week. Looking ahead, a long- period NW swell will promote rough seas north of 05N and west of 130W this weekend through early next week. $$ Konarik