Tropical Weather Discussion

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Tropical Weather Discussion NWS National Hurricane Center Miami FL 1005 UTC Thu Apr 23 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 0600 UTC surface analysis and satellite imagery through 0920 UTC. ...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH... A trough axis extends from near 08N78W to 06N96W to 05N109W. The ITCZ stretches from 05N110W to 04N118W then resumes west of a trough near 04N122W and continues beyond 02N140W. Scattered moderate convection is observed from 03S to 07N between 80W and 95W, and from 01N to 14N between 100W and 131W. ...OFFSHORE WATERS WITHIN 250 NM OF MEXICO... A broad surface ridge prevails across the Baja offshores and extends to just NW of the Revillagigedo Islands. The pressure gradient between the ridge and a trough along the Gulf of California is supporting moderate to fresh NW winds across the Baja waters N of Cabo San Lucas. Seas across these offshore waters are 7 to 8 ft in NW swell. Locally moderate NW winds are likely offshore Jalisco and Michoacan with 5-6 ft seas in S swell. Elsewhere, winds are light to gentle and seas 4-6 ft in S swell, except to 3 ft in the Gulf of California. For the forecast, new high pressure well NW of the area will build modestly across the Baja waters through today, and act to increase winds modestly through early Fri before weakening Fri night through Sat. NW swell with seas to 8 ft will continue to move across the Baja California waters and spread southeastward to the Revillagigedo Islands through today. Elsewhere, mostly light to gentle west to northwest winds are expected through Mon. ....OFFSHORE WATERS WITHIN 250 NM OF CENTRAL AMERICA, COLOMBIA, AND WITHIN 750 NM OF ECUADOR... Moderate NE to E gap winds and moderate seas to 5 ft are across the Papagayo region, extending downstream to 88W. Elsewhere, light to gentle variable winds prevail. Moderate seas in SW swell are slowly subsiding E of the Galapagos Islands through today. For the forecast, gap winds will remain moderate across the Papagayo region through this morning, then become light variable through Mon as southerly winds develop across the NW Caribbean. Otherwise, rather tranquil conditions are expected to continue over the Central American and the equatorial waters through early next week. The next significant SW swell is forecast to approach the Galapagos waters Sat, however seas are forecast to remain less than 8 ft. ...REMAINDER OF THE AREA... High pressure well NW of the area extends across the subtropical waters producing light to gentle anticyclonic winds N of 20N between 123W and 140W. Decaying NW swell with 8-9 ft seas accompany an area of moderate to fresh NE to E winds that extends from 02N to 20N between 120W and 140W. Elsewhere, moderate or lighter winds and moderate seas remain prevalent. For the forecast, modest high pressure N of the area will build weakly across the region over the next few days to maintain moderate to fresh trade winds S of 20N to the ITCZ and W of 120W. NW swell will spread southeastward over the next few days, leading to rough seas around 8 ft over the western tropical waters through tonight. Little overall changes are expected with winds and seas elsewhere through Mon.