Tropical Weather Discussion

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Tropical Weather Discussion NWS National Hurricane Center Miami FL 1005 UTC Fri Jun 19 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 0855 UTC. ...TROPICAL WAVES... A tropical wave is along 87W, south of 19N, moving at 5-10 kt. A few showers are noted near the trough axis. A tropical wave is along 96W, south of 15N, moving at 5-10 kt. Scattered moderate to isolated strong convection observed from 02N to 15N and between 90W and 101W. A tropical wave is along 114W, south of 18N, and nearly stationary. Isolated to scattered showers are occurring from 04N to 15N and between 107W and 120W. ...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH... The monsoon trough extends from the coast of Costa Rica near 11N86W to 15N104W and to 06N127W. The ITCZ stretches from 06N127W to beyond 03N140W. Scattered moderate convection is present from 04N to 12N and between 120W and 133W. ...OFFSHORE WATERS WITHIN 250 NM OF MEXICO... The pressure gradient between a strong ridge north of the area and lower pressures in NW Mexico support moderate to locally fresh northerly winds and moderate seas. A recent scatterometer satellite pass captured fresh NW winds north of Punta Eugenia. In the remainder of the Mexican offshore waters, including the Gulf of Tehuantepec, moderate or lighter winds and slight to moderate seas prevail. For the forecast, gentle to moderate northerly winds will persist across the offshore waters of Baja California, except for locally fresh speeds pulsing at night through the weekend. Looking ahead, a tightening pressure gradient will force fresh to strong northerly gap winds in the Gulf of Tehuantepec late Tue night into late next week. Seas will reach 8 ft Wed. ....OFFSHORE WATERS WITHIN 250 NM OF CENTRAL AMERICA, COLOMBIA, AND WITHIN 750 NM OF ECUADOR... Mainly moderate southerly winds and seas of 4-7 ft are found south of 03N. Elsewhere, light to gentle winds and slight seas prevail. For the forecast, primarily moderate southerly winds and moderate seas will prevail across the offshore waters between Ecuador and the Galapagos Islands through early next week. Meanwhile, moderate easterly trade winds will pulse to fresh speeds in diurnal offshore flow in the Gulf of Papagayo region through at least midweek. Light to gentle winds and slight to moderate seas in southwest swell are forecast elsewhere through the next several days. ...REMAINDER OF THE AREA... A weak pressure gradient prevails across the remainder of the eastern Pacific, supporting moderate NE-E winds and moderate seas north of the ITCZ to 22N and west of 120W. Moderate to locally fresh SE winds and seas of 6-8 ft are noted south of 05N and east of 120W. Elsewhere, light to gentle winds and moderate seas are prevalent. For the forecast, decaying southerly swell in the southern waters will build to rough again south of and near the Equator and east of 120W beginning Sat as a new set of southerly swell begins to move through this part of the area. Winds may pulse to fresh speeds in the west-central waters at times. Otherwise, little overall changes are expected in and winds and seas through the upcoming weekend and into early next week.