Tropical Weather Discussion

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Tropical Weather Discussion NWS National Hurricane Center Miami FL 1005 UTC Fri Apr 17 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 0730 UTC. ...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH... A surface trough extends from coastal Panama near 09N79W to 05N100W. The ITCZ begins at 05N100W to a 1012 mb low near 06N111W, then beyond 05N140W. Scattered moderate and isolated strong convection is occurring from 03N-08N between 90W-135W. A Southern Hemisphere ITCZ extends from 04S93W to 03S140W. Isolated moderate convection is observed from 03S-08S between 85W-89W. ...OFFSHORE WATERS WITHIN 250 NM OF MEXICO... A surface ridge extends from 30N125W to 20N117W to 15N108W. NW winds west of the Baja California peninsula are moderate to fresh. Winds are SW fresh to locally strong in the N Gulf of California. Elsewhere over the Pacific and the Gulf of California, winds are moderate or weaker. Seas are 5-7 ft in NW swell over the Pacific NW of Cabo Corrientes, 5-6 ft in S swell over the Pacific SE of Cabo Corrientes, 2-4 ft over the N Gulf of California, and 1-2 ft over the S and central Gulf of California. No deep convection is occurring over the Mexican offshore waters. For the forecast, fresh NW winds will occur near Cabo San Lucas through tonight. Additionally, large NW swell will impact the Pacific waters west of Baja California Norte today through Sat. Elsewhere, quiescent conditions will remain over the Mexican offshores through the weekend. Looking ahead, high pressure building over the Gulf of America is expected to induce a strong to near gale Tehuantepec gap wind event beginning Sun night into Tue. ....OFFSHORE WATERS WITHIN 250 NM OF CENTRAL AMERICA, COLOMBIA, AND WITHIN 750 NM OF ECUADOR... Fresh E winds are occurring over the Gulf of Papagayo region this evening. Elsewhere, winds across the Central American and equatorial waters are moderate or weaker. Seas over forecast waters are 5-6 ft in S swell. Isolated moderate convection is observed from 03S-08S between 85W-89W. near the Galapagos Islands. For the forecast, rather tranquil conditions are expected to remain over the Central American and the equatorial waters through early next week. ...REMAINDER OF THE AREA... A surface ridge extends from 30N125W to 20N117W to 15N108W. The weak pressure gradient between the ridge and lower pressure over the ITCZ is forcing only moderate to locally fresh NE trades over forecast waters. Seas are 5-7 ft in mixed swell. No additional deep convection is occurring away from the surface trough/ITCZ. For the forecast, little change is expected in the winds during the next few days. Large NW swell will impact waters north of 28N and east of 125W today through Fri night. Otherwise, little change in the seas are also expected through the weekend. Looking ahead, a cold front will reach our NW corner at 30N140W early on Sun. The frontal boundary should move eastward while gradually weakening, accompanied by large N to NW swell. The large N to NW swell should reach to 20N west of 130W by Tuesday.