Tropical Weather Discussion

Full Alert Message

Tropical Weather Discussion NWS National Hurricane Center Miami FL 2205 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 1800 UTC surface analysis and satellite imagery through 2100 UTC. ...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH... A surface trough extends from 07N77W to 06N85W to 05N100W. The ITCZ continues from 05N100W to 06N120W to 02N140W. A second ITCZ is south of the Equator and runs from 06S88W to 02S120W to 04S140W. Scattered moderate to isolated strong convection can be found from 00N to 05N between 83W and 88W. Scattered moderate convection is noted from 04N to 10N between 110W and 130W, and from 02N to 06N W of 130W. ...OFFSHORE WATERS WITHIN 250 NM OF MEXICO... Fresh to strong N winds are noted across the Gulf of Tehuantepec and downwind to 15N based on recent scatterometer data. Seas are 5 to 7 ft with these winds. A weak ridge continues to dominate the offshore waters of Baja California supporting gentle to moderate NW to N winds with moderate seas. Light to gentle winds prevail across most of the Gulf of California, except for locally moderate southerly 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 morning, with seas building up to 7 or 8 ft. Afterwards, mainly moderate to fresh N 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 locally strong SW to W winds are forecast in the northern Gulf of California Fri night through Sun night ahead of a couple of frontal boundaries approaching Baja California Norte. Elsewhere, winds will be moderate or weaker with moderate seas through the middle of next week. ....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 6 to 8 ft with these winds. Farther east, gentle to moderate N winds and seas of 3 to 5 ft are present in the Gulf of Panama, and downstream of the Azuero Peninsula. Light to gentle winds and moderate seas dominate the remainder of the offshore forecast waters. Higher winds are occurring near the convective activity covering the waters from the Equator to 05N between 83W and 88W. For the forecast, fresh to strong gap winds are expected mainly during the nighttime and early morning hours in the Papagayo area and downwind to near 90W through at least Sun night. Winds up to 30 kt, and seas up to 9 ft are forecast during the upcoming weekend. In the Gulf of Panama, moderate northerly winds, occasionally fresh, are forecast 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 center located near 28N123W. Multilayer clouds, with possible showers, associated with strong upper level winds, are noted from 20N to 25N W of 120W. A surface trough is analyzed is this area and extends from 24N125W to 18N132W. Scatterometer data indicate some wind shift related to the trough axis. The pressure gradient between the ridge and lower pressures in the vicinity of the ITCZ supports moderate to locally fresh winds N of the ITCZ to about 12N and W of 120W. 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. On Sun, another cold front will reach the N waters extending from 31N120W to 29N140W. gentle to moderate N winds and moderate seas are expected in the wake of the front.