000 AXPZ20 KNHC 292202 TWDEP Tropical Weather Discussion NWS National Hurricane Center Miami FL 2205 UTC Tue Nov 29 2022 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 1800 UTC surface analysis and satellite imagery through 2130 UTC. ...SPECIAL FEATURES... Gulf of Tehuantepec Gale Warning: Strong high pressure building over the Gulf of Mexico and the eastern north Pacific monsoon trough will support gale force winds over the Gulf of Tehuantepec. Strong northerly winds will begin Wed night with gale force winds occurring from Thu morning through Fri morning. Winds may briefly drop just below gale force on Thu afternoon but will quickly become gale force by Thu evening. Seas will build to 8-10 ft during this time. Strong winds will persist Fri afternoon through the weekend as well as seas remaining 8-10 ft. Winds could pulse to near gale- force Fri night and Sat night. Please see the latest High Seas Forecast at http://www.nhc.noaa.gov/text/MIAHSFEP2.shtml for more details. ...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH... The monsoon trough extends from the coast of Panama near 09N79W to a 1010 mb low near 07N86W to a 1011 mb low near 13N116W to 09N121W. The ITCZ extends from 09N121W to beyond 08N140W. Scattered moderate to isolated strong convection is noted from 07N to 16N between 93W and 133W. Scattered moderate convection is noted from 05N to 11N and E of 97W. OFFSHORE WATERS WITHIN 250 NM OF MEXICO... Moderate to locally fresh NW winds prevail across the offshore waters of Baja California Norte. Seas are 6 to 8 ft in fresh NW swell. Moderate to locally fresh N winds prevail in the northern Gulf of California with 2 to 3 ft seas. Elsewhere, mainly gentle NW winds prevail. Seas are 5 to 6 ft across the remaining waters of Baja California, 3 ft or less in the Gulf of California, and 3 to 5 ft between Tehuantepec and Acapulco offshore waters. For the forecast, the NW to N swell over the Baja California Norte offshore waters will slowly subside through Wed morning. A strong and significant gap wind event will develop in the Tehuantepec region starting Wed night, reaching gale force Thu morning through Fri morning. Winds will then remain strong and could pulse to near gale- force Fri night and Sat night. OFFSHORE WATERS WITHIN 250 NM OF CENTRAL AMERICA, COLOMBIA, AND WITHIN 750 NM OF ECUADOR... Fresh NE winds are noted in the Gulf of Papagayo region. Light to gentle variable winds are prevailing elsewhere N of 06N and seas of 4 to 6 ft dominate the waters N of monsoon trough, along 06N-07N. Moderate SW to W winds and 4 to 6 ft seas are to the S of the trough. Gentle to moderate winds prevail off the Ecuador offshore waters to the Galapagos Islands with seas 4 to 6 ft. Scattered showers are active across the coastal waters of Colombia, Panama and Costa Rica, and extend southward to 08N. For the forecast, gentle to moderate winds and seas will persist across most of the region into late week as a weak pressure pattern prevails. Fresh gap winds over the Papagayo region will persist into the upcoming weekend. Winds across the Papagayo region will pulse to strong each night through Sat, and extend beyond 92W Wed night through Fri, then retract to E of 90W Sat. REMAINDER OF THE AREA... The NE Pacific ridge extends SE into the area waters, between 115W and 140W. Moderate to locally fresh NE to E winds and seas of 6 to 7 ft are dominating most area N of the monsoon trough/ITCZ to 21N. Gentle to moderate winds and seas of 6 to 8 ft are noted elsewhere north of the monsoon trough. Moderate to locally fresh S/SW winds are noted S of the ITCZ/monsoon trough W of 110W. Gentle to moderate SW winds are noted S of the monsoon trough E of 110W. For the forecast, little change in marine conditions is expected through early Wed. A strong cold front is expected to reach the far NW waters Thu morning, bringing fresh to locally strong SW winds ahead of it on Wed night. Behind the front, strong to near gale force NE winds are expected. The NW swell behind this advancing front will raise seas 15 to 17 ft across the far NW waters near 30N140W by late Thu. The front is expected to reach from 30N125W to 26N140W by Fri morning before weakening considerably by Sat morning. $$ AKR