Tropical Weather Discussion

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Tropical Weather Discussion NWS National Hurricane Center Miami FL 1605 UTC Tue Aug 4 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 1200 UTC surface analysis and satellite imagery through 1500 UTC. ...TROPICAL WAVES... The axis of a tropical wave is near 95W, north of 02N, moving westward at 10 to 15 kt. Nearby convection is discussed in the ITCZ/Monsoon Trough section below. The axis of a tropical wave is near 117W/118W, moving westward at around 10 to 15 kt. Nearby convection is discussed in the ITCZ/Monsoon Trough section below. The axis of a tropical wave is near 131W, from 02N to 19N, moving westward at 10 kt. Nearby convection is discussed in the ITCZ/Monsoon Trough section below. ...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH... The monsoon trough extends from 09N78W to 09N110W to 1007 mb low pressure near 13N127W to 08N135W. The ITCZ extends from 08N135W to 08N140W. Scattered moderate to isolated strong convection is noted from 03N to 07N east of 90W, from 09N to 15N between 85W and 95W, from 10N to 15N between 105W and 120W. ...OFFSHORE WATERS WITHIN 250 NM OF MEXICO... Moderate to fresh winds prevail over the Gulf of California, with slight seas. Moderate or weaker winds, and moderate seas, prevail over the open waters off Mexico. For the forecast, the pressure gradient between high pressure NW of the area and low pressure over the Colorado River Valley will support moderate to fresh winds over the northern Gulf of California through tonight. Elsewhere, a moderate pressure gradient will support mostly gentle to moderate winds across the offshore waters of Mexico. Fresh to strong gap winds and building seas are expected across the Gulf of Tehuantepec toward the end of the week. ...OFFSHORE WATERS WITHIN 250 NM OF CENTRAL AMERICA, COLOMBIA, AND WITHIN 750 NM OF ECUADOR... Moderate to locally fresh winds and moderate seas prevail over and downstream the Gulf of Papagayo. Gentle to moderate winds are found between the Galapagos Islands and Ecuador. Light to gentle winds and moderate seas are noted elsewhere. For the forecast, moderate to fresh winds will pulse across the Papagayo region, with strong winds pulsing at night the second half of the week. Moderate or weaker winds and moderate seas in SW swell are expected across the remainder of the waters through the period. ...REMAINDER OF THE AREA... Northerly swell is bringing rough seas to the waters N of 28N between 120W and 132W. Elsewhere over the discussion waters, gentle to moderate winds and moderate seas prevail. For the forecast, the rough seas in northerly swell will subside today. Southerly swell will build northward to 03N and west of 105W starting tonight. Seas may build to 8 ft in the tradewind zone in the western waters late this week.