Tropical Weather Discussion

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Tropical Weather Discussion NWS National Hurricane Center Miami FL 2205 UTC Wed Apr 15 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 1930 UTC. ...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH... A surface trough extends from 07N80W to 04N100W to 04N117W. The ITCZ extends from 04N117W to 05N130W to beyond 04N140W. Southern hemispheric ITCZ extends from 04S114W to beyond 03S120W. Numerous moderate to isolated strong convection is noted from 00N to 05N between 85W and 101W. Scattered moderate convection is noted from 02N to 10N between 101W and 140W. ...OFFSHORE WATERS WITHIN 250 NM OF MEXICO... High pressure continues to gradually build south across Baja California waters, producing moderate to fresh N winds southward to the Revillagigedo Islands and to Cabo Corrientes, along with moderate seas. Gentle winds and moderate seas prevail to the south. For the forecast, moderate to fresh NW winds will continue across the waters on both sides of the Baja California Peninsula tonight as high pressure to the north builds southward. The high will weaken some by the end of the week, allowing winds to diminish to gentle to moderate. NW swell will propagate into Baja waters late Thu and produce rough seas across the outer waters of Baja Norte through Fri night. ....OFFSHORE WATERS WITHIN 250 NM OF CENTRAL AMERICA, COLOMBIA, AND WITHIN 750 NM OF ECUADOR... Fresh NE to E gap winds continue across the Papagayo region, downwind to near 90W. Moderate to locally fresh N to NE winds and moderate seas to 6 ft prevail in the Gulf of Panama and extend to near 04N. Light to gentle winds and moderate seas in S-SW swell dominate the remainder of the offshore forecast waters. For the forecast, broad high pressure centered N of the region will gradually weaken toward the end of this week. Fresh gap winds will pulse nightly in the Papagayo region into the weekend. In the Gulf of Panama, moderate northerly winds will pulse to fresh tonight and Thu night, then will diminish slightly through the rest of the week. Light to gentle winds and moderate seas will prevail elsewhere. Convection occurring near the Galapagos continue in the vicinity through Fri night. ...REMAINDER OF THE AREA... 1026 mb high pressure is centered N of the area near 34N133W and extends a ridge southward across the region. The pressure gradient between the ridge and lower pressure in the vicinity of the ITCZ supports moderate to fresh NE to E winds south of 25N and west of 110W. Seas are generally 5 to 7 ft in mixed swell across the area, except less than 5 ft across the far NW waters near the high pressure center. Elsewhere, mainly gentle winds and moderate seas prevail. For the forecast, high pressure just N of the area will strengthen the pressure gradient modestly across the area through Thu. Moderate to fresh winds are expected in the trade wind zone through Fri. The high pressure will weaken just N of the area on Sat to produce diminishing winds and seas through Sun, before a new cold front enters the NW waters late Sun.