Eastern Pacific Tropical Weather Discussion
300 AXPZ20 KNHC 011455 TWDEP Tropical Weather Discussion NWS National Hurricane Center Miami FL 1605 UTC Sun Nov 1 2026 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 1440 UTC. ...SPECIAL FEATURES... Gale Warning: A 1005 mb low is centered near 31N117W, with cold front extending SW to near 22N122W. The cold front will move across the Baja California Norte offshore waters through this evening. Moderate to fresh SW winds will develop over the northern Gulf of California ahead of the front this morning and reach strong to minimal gale-force by this afternoon. Winds will start to diminish early this evening. A period of rough seas to 9 ft will accompany these winds. Please read the latest HIGH SEAS FORECAST issued by the National Hurricane Center at website - https://www.nhc.noaa.gov/text/MIAHSFEP2.shtml ...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH... The monsoon trough extends from 09N84W to 06N116W to 09N140W. Scattered moderate isolated strong convection is noted from 03N to 08N E of 86WW, and from 00N to 10N between 104W and 140W. ...OFFSHORE WATERS WITHIN 250 NM OF MEXICO... Please see Special Features section above for information on a gale warning in the northern Gulf of California. Fresh to strong N to NE gap winds, and seas of 8-9 ft, are over the the Gulf of Tehuantepec. A 1005 mb low is centered near 31N117W, with cold front extending SW to near 22N122W. Scattered moderate and isolated strong convection is ahead of this cold front, impacting the Baja California offshore waters as well as the northern and central Gulf of California. Fresh to near- gale winds, and rough seas to 9 ft are affecting the Baja California offshores N of Punta Eugenia. Moderate to locally fresh SW winds are developing in the northern half of the Gulf of California where seas remain slight. Elsewhere, light to gentle winds and moderate seas to 6 ft prevail. For the forecast, fresh to strong N gap winds over the Gulf of Tehuantepec will continue through Mon morning. Low pressure with attendant cold front will move across the Baja California Norte offshore waters through this evening. Fresh to strong winds and rough seas associated with this system will affect the waters N of Cabo San Lazaro through this afternoon when seas will subside below 8 ft. Moderate to fresh SW winds over the northern Gulf of California ahead of the front will reach strong to minimal gale- force winds by this afternoon. Rough seas to 9 ft will accompany these winds. Winds will diminish below gale force by this evening, and further diminish through early Mon. The front will move into NW Mexico by Mon morning. High pressure will build in the wake of the front. The pressure gradient between this area of high pressure and low pressure over Mexico will support moderate to fresh northerly winds in the Gulf of California as well as offshore the Baja California peninsula through midweek. Long period NW swell will build seas to 8 to 9 ft N of Cabo San Lazaro Tue night into Thu morning. ...OFFSHORE WATERS WITHIN 250 NM OF CENTRAL AMERICA, COLOMBIA, AND WITHIN 750 NM OF ECUADOR... Fresh to strong NE winds, and seas of 8-9 ft, are over and downstream the Gulf of Papagayo to near 90W. Moderate or weaker winds and moderate seas in SW swell are elsewhere. For the forecast, fresh to strong NE to E gap winds over the Gulf of Papagayo region will diminish to moderate or weaker speeds by Mon evening. Low pressure may develop SW of Costa Rica late Tue and is forecast to bring strong SW winds and rough seas to 9 ft to the waters off Costa Rica and Panama into early Fri morning. ...REMAINDER OF THE AREA... A cold front extends from a 1005 mb low N of the area to near 22N122W. Moderate to fresh winds, and seas of 6-9 ft are N of the front. Fresh to locally strong winds, and rough seas to 9 ft, are from 01N to 06N between 108W and 114W. Elsewhere, winds are moderate or weaker with moderate seas. For the forecast, the front will shift east of the discussion area today, with winds and seas decreasing. Another cold front is forecast to enter the NW waters on Mon, which will be followed by fresh to strong winds and long period NW swell resulting in very rough seas to 13 ft. The front will move eastward and dissipate Tue night west of the Baja California offshore waters. NW swell generated from the winds behind the front will spread SE, bringing rough seas over much of the waters N of 10N and W of 120W by midweek.