000 AXPZ20 KNHC 301523 TWDEP Tropical Weather Discussion NWS National Hurricane Center Miami FL 1605 UTC Sun Jul 30 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 1200 UTC surface analysis and satellite imagery through 1500 UTC. ...SPECIAL FEATURES... Offshore of Southern Mexico (EP96): 1009 mb low pressure is analyzed SW of the Gulf of Tehuantepec near 15N97W, along a tropical wave extending southward to 05N. The low and tropical wave complex is moving west at 10 to 15 kt. Scattered showers and thunderstorms are noted over the offshore waters of western Oaxaca ahead of the low pressure from 11N to 16N between 96W and 100W. Environmental conditions are favorable for gradual development, and there is a medium chance of tropical formation in the next 48 hours. A tropical depression will likely form early this week while the system moves west- northwestward, roughly parallel to the coasts of southern and southwestern Mexico. For more information, please refer to the latest Tropical Weather Outlook issued by the National Hurricane Center at www.hurricanes.gov. ...TROPICAL WAVES... Please see the Special Features section for information on a tropical wave along 97W. A tropical wave extends along 121W from 02N to 18N. Weak low pressure has formed where the wave is interacting with the monsoon trough, but no significant convection is noted near this wave. ...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH... The monsoon trough extends from 08N82W to 07N105W to beyond 09N140W. Numerous moderate to isolated strong convection is active south of Panama from 03N to 08N E of 86W. Scattered moderate convection is also noted from 05N to 07N between 86W and 89W, and from 05N to 07N between 130W and 140W. ...OFFSHORE WATERS WITHIN 250 NM OF MEXICO... Gale force gap winds in the Gulf of Tehunatepec have ended this morning. However, strong N winds prevail due to the tight pressure gradient between high pressure over teh Gulf of Mexico and low pressure associated with EP96, described above. These winds should diminish through the day as the disturbance moves further west of the area. Light to gentle breezes are noted elsewhere with moderate seas in open waters and slight seas over the Gulf of California. The only exception is a very small area of fresh NW winds offshore Cabo Corrientes. Convection near the Gulf of California has diminished, leaving the only convection this morning in association with EP96. For the forecast, aside from the impacts of EP96, depicted in the Special Features section above, winds and seas offshore Baja California Norte may increase beginning late Wed, associated with a weak surface trough. ...OFFSHORE WATERS WITHIN 250 NM OF CENTRAL AMERICA, COLOMBIA, AND WITHIN 750 NM OF ECUADOR... Fresh NE to E gap winds are noted across the Gulf of Papagayo, with 4 to 6 ft seas. Moderate S winds are within 750nm of Ecuador including the Galapagos Islands, with 4-6 ft seas in S swell. Gentle breezes persist elsewhere, with 3 to 5 ft seas. For the forecast, fresh to occasionally strong E gap winds will pulse across the Papagayo region through tonight, with moderate to fresh W winds during each day. Gentle to moderate winds and slight to moderate seas will persist elsewhere. ...REMAINDER OF THE AREA... Swell from the southern hemisphere south of 10N between 110W and 140W persists around 4-6 ft. Elsewhere, mainly gentle to moderate winds and seas prevail across the area. For the forecast, mainly gentle to moderate winds are forecast through the next several days. Moderate winds and seas will prevail into mid week. Looking ahead, as described in the Special Features section, a tropical cyclone is likely to develop south of Mexico early this week, and may move S and W of the Revillagigedo Islands by Thu. $$ KONARIK