000 AXPZ20 KNHC 071606 TWDEP Tropical Weather Discussion NWS National Hurricane Center Miami FL 1605 UTC Wed Feb 7 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 1200 UTC surface analysis and satellite imagery through 1530 UTC. ...SPECIAL FEATURES... Significant N Swell: A set of northerly swell is propagating southeastward across the east Pacific. Seas of 12 to 15 ft are found within 90 nm of a line from 30N127W to 21N129W to 14N133W to 12N140W. Seas north of 18N will subside below 12 ft later this afternoon, while seas of 12 to 15 ft will persist south of 18N through Thu before gradually decaying the rest of the week. 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 more details. ...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH... An equatorial trough extends southwestward from 07N78W to 03N96W. An ITCZ continues westward from 03N96W across 06N120W to beyond 05N140W. Scattered moderate convection is noted up to 90 nm along either side of the trough between 84W and 96W, and up to 150 nm along either side of the ITCZ. ...OFFSHORE WATERS WITHIN 250 NM OF MEXICO... See the Special Features Section for information on a gale warning for the Gulf of Tehuantepec. Aside from the Gulf of Tehuantepec gale force gap wind event, a cold front is moving across the central waters of the Gulf of California, extending SW across Baja California Sur into the offshore waters. Fresh to strong winds, and seas of 5-7 ft, are N of the front in the northern Gulf of California. Gentle to moderate winds, and seas of 2-3 ft are elsewhere over the Gulf. Moderate to fresh winds are west of the Baja California peninsula N of the front, where seas are in the 7-10 ft range in NW swell. Elsewhere over the open waters off Mexico, mainly light to gentle winds prevail, with seas in the 4-6 ft range. For the forecast, conditions over the Gulf of Tehuantepec will improve today as the fresh to near- gale force gap winds and very rough seas over and downstream the Gulf decrease. Fresh to strong winds will prevail in the far northern Gulf of California through Thu. Large, long- period NW swell over the offshore waters of the Baja California peninsula will spread southward to the Revillagigedo Islands today. Seas will gradually subside by the end of the week. ...OFFSHORE WATERS WITHIN 250 NM OF CENTRAL AMERICA, COLOMBIA, AND WITHIN 750 NM OF ECUADOR Gentle to moderate gap winds have developed in the Gulf of Papagayo as well as the Gulf of Panama. Gentle to moderate winds are also near the coast of Guatemala and El Salvador. Gentle winds are between Ecuador and the Galapagos Islands. Light to gentle winds prevail elsewhere. Seas are in the 8-10 ft range over the outer waters off Guatemala and El Salvador, and in the 4-7 ft range closer to shore, in northerly swell generated by the Gulf of Tehuantepec gale force gap wind event. Elsewhere, seas 4-5 ft range prevail. For the forecast, swell generated by the gap wind event in the Tehuantepec region will sustain rough seas over the outer offshore waters of Guatemala and El Salvador through early this afternoon. Fresh to strong gap winds in the Papagayo region will pulse to near gale force at night tonight through Fri night. Fresh to strong gap winds will develop in the Gulf of Panama today. Conditions at both locations will start to improve later this weekend. ...REMAINDER OF THE AREA... See the Special Features Section for information on an ongoing large swell event. Aside from the large swell, a cold front extends across Baja California Sur to near 12N122W. A ridge extends SE across the waters N of 20N. The pressure gradient between the ridge and the cold front is supporting moderate to fresh winds N of 20N. The pressure gradient between the ridge and lower pressure in the vicinity of the ITCZ is supporting fresh to strong trade winds over the waters N of the ITCZ to 20N and W of 120W. Gentle to moderate winds generally prevail elsewhere. Aside from the area of 12 ft seas, seas greater than 8 ft cover the waters NW of a line from 30N116W to 18N116W to 01N140W. Elsewhere, seas of 5-7 ft prevail. For the forecast, fresh to strong trade winds will prevail N of the ITCZ through early the remainder of the week, diminishing this weekend. $$ Chan