000 AXPZ20 KNHC 092100 TWDEP Tropical Weather Discussion NWS National Hurricane Center Miami FL 1936 UTC Sun Jun 9 2019 Tropical Weather Discussion for the eastern Pacific Ocean from the Equator to 32N, east of 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. ...TROPICAL WAVES... The axis of a tropical wave is near 95W, moving W 10-15 kt. Active convection near this wave is described described below, mainly from 06N to 11N between 92W and 98W. ...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH... The monsoon trough extends from 11N86W to 12N94W to 07N108W. The ITCZ continues from 07N108W to 06N114W to 07N140W. Scattered moderate isolated strong convection was noted from 06N to 11N between 92W and 98W. Scattered moderate isolates strong convection is noted from 10N to 13N between 100W and 105W. Scattered moderate isolated strong convection was noted within 90 nm either side of the ITCZ between 108W and 116W. Scattered moderate isolated strong convection was noted from 06N to 10N W of 131W. ...DISCUSSION... OFFSHORE WATERS WITHIN 250 NM OF MEXICO... Latest scatterometer data indicates light to gentle winds prevail over the open waters off the coast of Mexico, reaching moderate winds off the coast of Cabo San Lucas. Light and variable winds prevail over the Gulf of California. Over the open waters off Mexico, seas are mainly in the 4-6 ft range, reaching 7 ft in N swell near and to the west of Guadalupe Island. Seas over the Gulf of California are 3 ft or less. High pressure west of Baja California will maintain gentle to locally moderate NW winds over the offshore waters through the next several days. Winds may briefly pulse to locally fresh off Cabo San Lucas each late afternoon and evening for the next several days. Seas will subside to 5-6 across the waters west of Guadalupe Island late today. Northerly gap winds are expected to develop over the Gulf of Tehuantepec Mon night as the local pressure gradient tightens. Winds will peak near 30 kt are expected Tue morning, when seas will build up to 10 ft. Winds will diminish to 20 kt or less Wed, before returning Thu night Freshening NW winds along the Baja California coast will produce areas of westerly gap winds inside of the Gulf of California Tue through Fri. Some of these areas will increase to fresh to strong Thu night. OFFSHORE WATERS WITHIN 250 NM OF CENTRAL AMERICA, COLOMBIA, AND WITHIN 750 NM OF ECUADOR... Gentle to moderate S to SW wind flow is noted across the forecast waters S of the monsoon trough, and light easterly winds N of the monsoon trough. Little change in these winds are expected through the next several days. Seas are in the 4-7 ft range across the forecast area. Seas will subside slightly through the early part of the week. REMAINDER OF THE AREA... High pressure of 1031 mb centered well NW of the area near 40N134W extends a ridge SE to just S of the Revillagigedo Islands. Moderate to fresh N to NE winds prevail north of the ITCZ and west of 125W, with gentle to moderate winds east of 122W. Seas are in the 8-9 ft range in northerly swell N of 27N between 123W and 131W. Seas are 5-7 ft elsewhere, except from 08N to 12N to the west of 134W where seas are reaching near 8 ft in mixed swell. The northerly swell will continue to bring seas of 8 ft or greater across the waters west of Guadalupe Island through early Mon, subsiding Mon. Farther south, southerly swell will continue dominating the waters east of 120W through the early part of the week. Recent altimeter data revealed seas to 8 ft as far north as 10N between 92W and 100W. Seas will subside to less than 8 ft tonight. $$ AL