Tropical Weather Discussion
Issued by NWS
Issued by NWS
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492 AXPZ20 KNHC 020401 TWDEP Tropical Weather Discussion NWS National Hurricane Center Miami FL 0405 UTC Sun Nov 2 2025 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 0000 UTC surface analysis and satellite imagery through 0350 UTC. ...SPECIAL FEATURES... Gulf of Tehuantepec Gale Warning: A cold front will move across the Gulf of America on Sun and a strong ridge will settle across Mexico and the Gulf in the wake of the front. Strong winds will funnel through the Chivela Pass and gap winds in Tehuantepec will resume, reaching near gale force speeds and rough seas by Sun afternoon and gale force winds by Sun evening with seas reaching very rough ranges Sun night through Tue. Gales will prevail through Tue night, however strong to near gale force winds will gradually diminish through Thu evening. Please read the latest HIGH SEAS FORECAST issued by the National Hurricane Center at website - https://www.nhc.noaa.gov/text/MIAHSFEP2.shtml for more details. ...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH... The monsoon trough extends from 07N77W to a 1010 mb low near 12N112W to 10N118W. The ITCZ stretches from that point to beyond 07N140W. Scattered moderate convection is ongoing from 03N to 12N and E of 101W, from 08N to 15N between 102W and 122W, and from 05N to 13N W of 122W. ...OFFSHORE WATERS WITHIN 250 NM OF MEXICO... A weak pressure gradient across the region is supporting moderate or weaker winds, and moderate seas, except for slight seas in the Gulf of California. For the forecast, a cold front will move across the Gulf of America on Sun and a strong ridge will settle across Mexico and the Gulf in the wake of the front. Strong winds will funnel through the Chivela Pass and gap winds in Tehuantepec will resume, reaching near gale force speeds and rough seas by Sun afternoon and gale force winds by Sun evening with seas reaching very rough ranges Sun night through Tue. Gales will prevail through Tue night, however strong to near gale force winds will gradually diminish through Thu evening. Otherwise, long period NW swell will move into the Baja California Norte offshore waters by Sun morning, and spread to Cabo San Lucas by Sun night before gradually subsiding through Tue evening. A second set of large NW swell is forecast to enter the waters N of Punta Eugenia late Thu. ...OFFSHORE WATERS WITHIN 250 NM OF CENTRAL AMERICA, COLOMBIA, AND WITHIN 750 NM OF ECUADOR... Fresh to locally strong NE winds are ongoing in the Gulf of Papagayo with moderate seas. Light to gentle winds and slight to moderate seas are elsewhere across the Central America offshores. Between Ecuador and the Galapagos Islands, winds are gentle to moderate from the SE to S, and seas are rough in long period SW swell. For the forecast, moderate to fresh gap winds and moderate seas are expected to pulse across the Papagayo region through Thu. Cross- equatorial SW swell will continue propagate through the regional waters and will gradually subside on Sun. The next strong Tehuantepec gap wind event will result in moderate N winds and moderate to rough seas in the far offshore waters of Guatemala and El Salvador Mon through early Wed. ...REMAINDER OF THE AREA... A 1025 mb high pressure centered near 32N133W extends a ridge across the E Pacific subtropical waters. Long period NW swell continues to spread across the waters N of 20N and W of 120W ahead of a cold front NW of the region. Rough seas in the 8 to 11 ft range are associated with this swell event. Moderate or weaker winds and seas are elsewhere N and south of the ITCZ/monsoon trough W of 100W. East of 110W, long-period SW swell with rough seas to 9 ft are south of the monsoon trough between 90W and 97W. For the forecast, the subtropical ridge will dominate the waters W of 120W into early next week. Cross-equatorial SW swell E of 100W will subside by Sun evening. The large NW swell will continue to spread SE through Mon night and then gradually subside late Tue. A cold front will enter the NW region Tue night preceded by fresh to strong winds and rough seas. Otherwise, shower and thunderstorm activity associated with a broad area of low pressure located several hundred miles south- southwest of the Baja California Peninsula has increased during the past several hours. However, any additional development of this system appear unlikely as it moves slowly westward across the central part of the eastern Pacific during the few couple of days. $$ Ramos