Tropical Weather Discussion

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Tropical Weather Discussion NWS National Hurricane Center Miami FL 1605 UTC Thu Apr 9 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 1500 UTC. ...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH... A surface trough extends from 08N82W to 05N94W. The ITCZ continues from 05N94W to 06N120W to 02N140W. A second ITCZ is south of the Equator and runs from 05S85W to 01S110W to beyond 05S140W. Scattered moderate to isolated strong convection can be found from 01N to 06N between 82W and 88W. Similar convective activity is noted from 03N to 10N between 113W and 130W. ...OFFSHORE WATERS WITHIN 250 NM OF MEXICO... Fresh to strong N winds are noted across the Gulf of Tehuantepec along with seas of 5 to 7 ft. A weak ridge continues to dominate the offshore waters of Baja California supporting moderate to locally fresh NW to N winds off Baja California. Light to gentle winds prevail across most of the Gulf of California, except for locally moderate westerly winds near the entrance to the Gulf. Elsewhere across the Mexican offshore waters, light to gentle winds and moderate seas, primarily in southerly swell, prevail. For the forecast, pulsing fresh to strong northerly winds are forecast in the Tehuantepec region through Sun, with seas building up to 7 or 8 ft. Afterwards, gentle to moderate winds are expected. Moderate to locally fresh NW winds and moderate seas are forecast off Baja California through Mon under the influence of a ridge. By Mon night into Tue, the pressure gradient may tighten enough between the ridge to the W and lower pressures inland Mexico to support moderate to fresh NW winds off the Baja California Peninsula. Fresh to strong SW winds may briefly develop in the northern Gulf of California Fri night ahead of a cold front approaching Baja California Norte, then moderate to fresh SW to W winds are expected through the upcoming weekend. Elsewhere, winds will be moderate or weaker with moderate seas through the next several days. ....OFFSHORE WATERS WITHIN 250 NM OF CENTRAL AMERICA, COLOMBIA, AND WITHIN 750 NM OF ECUADOR... Fresh to locally strong gap winds prevail across the Gulf of Papagayo and downwind to near 89W. Seas are 5 to 7 ft with these winds. Farther east, gentle to moderate N winds and seas of 3 to 4 ft are present in the Gulf of Panama. Light to gentle winds and moderate seas dominate the remainder of the offshore forecast waters. For the forecast, fresh to locally strong gap winds are expected during the nighttime and early morning hours in the Papagayo area and downwind to about 89W through Thu. Toward the upcoming weekend, winds may increase to 30 kt with seas building to 8 or 9 ft in the Papagayo region as a stronger high pressure settles N of the area. Moderate northerly winds, occasionally fresh, are forecast in the Gulf of Panama throughout the forecast period, with stronger conditions most likely during the upcoming weekend. Light to gentle winds and moderate seas will prevail elsewhere. ...REMAINDER OF THE AREA... A ridge dominates the northern forecast waters N of 15N and W of 110W, including the Revillagigedo Islands with a 1018 mb high pressure located near 28N124W. Multilayer clouds, associated with strong upper level winds, are noted from 20N to 26N W of 120W. The pressure gradient between the ridge and lower pressures in the vicinity of the ITCZ supports moderate to locally fresh winds in the trade wind zone, W of 110W. Seas of 5 to 7 ft are within these winds. Elsewhere, moderate or weaker winds and moderate seas are occurring. For the forecast, high pressure will remain in control of the weather pattern across the forecast waters over the next several days with little change in winds and seas. Mainly moderate winds are expected in the trade wind zone.