Tropical Weather Discussion

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Tropical Weather Discussion NWS National Hurricane Center Miami FL 2205 UTC Thu Jan 8 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 1800 UTC surface analysis and satellite imagery through 2000 UTC. ...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH... The monsoon trough extends from 09N81W to 06N100W. The ITCZ continues from 06N100W to 05N121W to 08N140W. Scattered moderate convection is from 06N to 09N east of 84W. ...OFFSHORE WATERS WITHIN 250 NM OF MEXICO... High pressure building into the SW United States is leading to fresh to locally strong NW winds offshore Baja California Norte, where seas of 7 to 10 ft are present. Elsewhere offshore Baja California, moderate NW winds and seas of 5 to 7 ft are present. In the Gulf of California, moderate winds and seas of 2 to 4 ft are occurring. Elsewhere, light to gentle winds and seas of 2 to 4 ft dominate. For the forecast, a large area of gale-force gap winds and very rough seas will occur across and well downwind of the Gulf of Tehuantepec beginning Sat night as a strong cold front moves through southern Mexico. Near storm-force winds are possible Sun night, with gales persisting through at least Mon night. Large swell will reach as far south as the Revillagigedo Islands into Sun, with very rough seas north of Cabo San Lazaro through Fri night. Strong high pressure building north of the area over the Great Basin will support strong NW winds and rough seas across the Gulf of California tonight into Mon. ....OFFSHORE WATERS WITHIN 250 NM OF CENTRAL AMERICA, COLOMBIA, AND WITHIN 750 NM OF ECUADOR... High pressure extending across the northwest Caribbean and the Yucatan is supporting fresh NE gap winds across the Papagayo region. Moderate to fresh northerly gap winds are also ongoing across the Gulf of Panama. Elsewhere, light to gentle winds and slight to moderate seas in SW swell prevail. For the forecast, high pressure north of the region will support fresh to occasionally strong winds across the Papagayo region through early next week. Pulsing fresh northerly winds are also expected across the Gulf of Panama tonight. Gentle to moderate breezes and slight to moderate seas will persist elsewhere. ...REMAINDER OF THE AREA... High pressure building well north of the area is supporting fresh easterly winds north of 09N and west of 118W, where seas are 7 to 10 ft. Moderate to fresh E to SE wind with 6 to 7 ft seas in N swell are noted south of 09N and west of 130W. Mainly gentle breezes and moderate seas are evident elsewhere. For the forecast, high pressure north of the region will support fresh trade winds and rough seas from 09N to 22N west of 118W through Fri night. NW swell will keep rough seas in place for waters north of 15N into the weekend. Looking ahead, another round of large NW swell will pass southeast of 30N140W Sat night, and cover the area north of 10N and west of 120W by late Mon.