000 AXPZ20 KNHC 240816 TWDEP Tropical Weather Discussion NWS National Hurricane Center Miami FL 1005 UTC Mon Jul 24 2023 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 0740 UTC. ...TROPICAL WAVE... The axis of a tropical wave is near 93W from SE Mexico southward to 02N, moving west at around 15 to 20 kt. Nearby convection is described below. The axis of a tropical wave is near 107W/108W, from 02N to 20N, moving west at around 15 to 20 kt. No significant convection is evident with this tropical wave. The axis of a tropical wave is near 121W/122W, from 02N to 18N moving west at around 15 to 20 kt. Nearby convection is described below. ...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH... The monsoon trough extends from 10N75W to 09N89W to 10N96W to 08N112W. The ITCZ extends from 08N112W to 12N132W to 09N140W. Scattered moderate isolated strong convection is evident from 05N to 07.5N between 78W and 82W, from 05N to 08N between 90W and 97W, from 12N to 16.5N between 92W and 95W, and from 03N to 12N between 111W and 135W. Scattered moderate convection is evident from 03N to 17N between 97W and 103W. ...OFFSHORE WATERS WITHIN 250 NM OF MEXICO... Moderate to fresh N winds are likely in the Gulf of Tehuantepec. Mainly Gentle to locally moderate winds prevail across the offshore waters of Mexico, except possibly in the northern Gulf of California where model guidance initialization is indicating a surge of fresh to strong winds due to earlier nearby convection. Seas of 3-5 ft prevail in S-SW swell, except NW swell offshore Baja California. Seas are 1-3 ft in the Gulf of California, except likely higher near the wind surge. Scattered thunderstorms are occurring near Cabo Corrientes, with additional activity in the Tehuantepec region. For the forecast, expect moderate to fresh gap winds across the Gulf of Tehuantepec until around sunrise this morning, then winds pulsing to fresh to strong at night beginning tonight through the week. Gentle to moderate winds and moderate seas will persist elsewhere, except for locally gusty winds near clusters of showers and thunderstorms in portions of the Gulf of California during overnight hours. ...OFFSHORE WATERS WITHIN 250 NM OF CENTRAL AMERICA, COLOMBIA, AND WITHIN 750 NM OF ECUADOR... Showers and thunderstorms are active off the coasts of Panama and Costa Rica, as well as offshore El Salvador and Guatemala. Fresh to strong NE-E gap winds are across the Papagayo region along with 4-6 ft seas. Moderate N winds are in the Gulf of Panama. Moderate southerly winds are S of 03N, with seas of 4-6 ft in S-SW swell. Elsewhere, mainly light to gentle breezes and 3-4 ft seas are evident. For the forecast, fresh to strong gap winds will pulse across the Gulf of Papagayo each night through the week, with moderate to rough seas. Gentle to moderate winds and slight to moderate seas will persist elsewhere, except for locally gusty winds near clusters of showers and thunderstorms from Colombia to Costa Rica. ...REMAINDER OF THE AREA... Weak high pressure ridging dominates the basin N of the monsoon trough and ITCZ, except for a surface trough along 135W/136W N of the ITCZ which is the remnants of T.D. Four-E. Locally fresh to strong winds are found NW of this trough. Mainly gentle to moderate winds and moderate seas prevail elsewhere. For the forecast, the remnant trough of Four-E will gradually dissipate as it continues to move westward today. Elsewhere, moderate to occasionally fresh winds can be expected from 09N to 15N and W of 127W today through the middle of the week, with seas building to around 8 ft in the W-central waters early Wed. Gentle to moderate winds are forecast thereafter and elsewhere. Moderate seas will prevail, building to around 8 ft S of the Equator and W of 95W later today through Wed. $$ Lewitsky