Tropical Weather Discussion

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Tropical Weather Discussion NWS National Hurricane Center Miami FL 2205 UTC Wed Mar 25 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 2030 UTC. ...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH... A surface trough extends from low pressure in northern Colombia southwestward to 06N78W and to 06N86W, where it transitions to the ITCZ and continues to beyond 04N140W. Scattered moderate convection is within 150 nm of the ITCZ between 116W-132W. ...OFFSHORE WATERS WITHIN 250 NM OF MEXICO... High pressure west of Baja California continues to support light northwest winds and moderate seas across the Mexican offshore waters N of Tehuantepec. Fresh to strong winds have developed in the Tehuantepec region, as verified by latest scatterometer data. Moderate seas to 7 ft are expected in this area. In the Gulf of California, winds are generally light and variable. Slight seas will prevail in the Gulf. For the forecast, light and variable winds will prevail over the offshore waters through the forecast period. Northwest swell will build seas to rough north of Punta Eugenia Thu through Fri night before subsiding. Fresh to strong north gap winds in the Gulf of Tehuantepec will pulse nightly through the rest of the week with rough seas. A frontal boundary will move across the Gulf of America this weekend. The pressure gradient in the Tehuantepec region will tighten leading to gale-force northerly winds there north of 14N beginning Sat night. ....OFFSHORE WATERS WITHIN 250 NM OF CENTRAL AMERICA, COLOMBIA, AND WITHIN 750 NM OF ECUADOR... The gradient associated to relatively weak high pressure over the western Atlantic is inducing fresh to strong northeast to east winds in the Gulf of Papagayo region as noted in latest scatterometer satellite data. Moderate seas prevail with these winds. Farther east, moderate northeast winds are in the Gulf of Panama reaching southward to near 06N with moderate seas. Elsewhere, light to gentle winds and slight to moderate seas prevail. For the forecast, the fresh to strong northeast winds in the Gulf of Papagayo region will continue to pulse nightly going into the upcoming weekend along with moderate to rough seas. Moderate to fresh northeast winds will pulse in the Gulf of Panama during this time. Gentle breezes and moderate seas will prevail elsewhere. ...REMAINDER OF THE AREA... The pressure gradient between modest high pressure north of 16N and west of 115W, and lower pressure near the ITCZ is currently sustaining moderate trades from 04N to 14N between 110W and 140W, and from 04N to 10N between 97W and 110W. Moderate seas prevail across this area, with max of 7 ft mainly W of 130W. Elsewhere, latest scatterometer satellite data indicates light to gentle northeast to east winds. Seas are 4 to 6 ft elsewhere primarily due to a long-period northwest to north swell. The tail-end of a stationary front just touches 30N140W, and stretches well southwestward from there. For the forecast, fresh to strong northeast to east winds will develop north of 26N and west of 119W Thu through Fri as the pressure gradient tightens between a ridge building southward across the north-central waters, and a low pressure system, with attendant trough lifting northward west of the area near 145W. Seas are expected to build to rough over this part of the area.