000 AXPZ20 KNHC 140230 TWDEP Tropical Weather Discussion NWS National Hurricane Center Miami FL 0405 UTC Sat Oct 14 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 0000 UTC surface analysis and satellite imagery through 0230 UTC. ...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH... The monsoon trough extends from 11N86W to 15N96W to 11N115W to 11N134W to 09N140W. Scattered moderate and isolated strong convection is noted from 03N to 15N between 82W and 100W. Scattered moderate convection is noted from 08N to 10N between 122W and 130W, and from 08N to 12N between 135W and 140W. ...OFFSHORE WATERS WITHIN 250 NM OF MEXICO... A ridge extends across the Baja California offshore waters. Light to gentle winds prevail across most of the offshore waters of Mexico, reaching moderate speeds off SW Mexico. Seas are in the 7-9 ft range off the Baja California peninsula in northwesterly swell. Seas are in the 6 to 7 ft range across the southwestern and southern Mexico offshore waters. Light to gentle winds, and seas of 2 to 4 ft are noted in the Gulf of California. For the forecast, northwesterly swell impacting the Baja California offshore waters will subside by Sat morning. Light to gentle winds across the Baja California and Gulf of California will prevail through Sat before increasing slightly Sat night into Sun. Gap winds will strengthen across the Gulf of Tehuantepec by Sun morning. Winds in the Tehuantepec region will possibly reach gale- force by early Mon, then diminish below gale- force by Tue with fresh to strong winds continuing through midweek. Looking ahead, an area of low pressure is expected to form several hundred miles south of the southwestern coast of Mexico during the early to middle part of next week. Environmental conditions are forecast to be conducive for additional development thereafter, and a tropical depression could form by the middle to latter part of the week while meandering well offshore of the coast of Mexico. The latest Tropical Weather Outlook gives this system a medium chance of tropical cyclone formation through 7 days. ...OFFSHORE WATERS WITHIN 250 NM OF CENTRAL AMERICA, COLOMBIA, AND WITHIN 750 NM OF ECUADOR... Gentle to moderate W to SW winds prevail across the Central American offshore waters. Gentle to moderate S winds are noted in the South American offshore waters. Southerly swell propagating across the discussion waters is producing 6-7 ft seas. For the forecast, winds will increase to moderate to locally fresh across the Ecuador and Galapagos Islands offshore waters by Sat. Gentle to moderate winds will continue across the Central and South American waters through early next week. Long- period southerly swell will slowly subside across the area through the weekend. ...REMAINDER OF THE AREA... A dissipating cold front extends from 30N132W to 28N140W. The cold front has ushered in a set of NW swell, with seas in the 8-9 ft range west of the front. High pressure of 1016 mb centered east of the low near 28N129W extends a ridge SE to near the Revillagigedo Islands. extends across the northern waters. Light to gentle winds prevail across the discussion waters. Seas are in the 8-9 ft range N of 19N and E of 123W in subsiding NW swell. Elsewhere, seas are in the 5-7 ft range. For the forecast, the NW swell over the NE portion of the discussion waters will subside by Sat. The cold front will dissipate this weekend. Northwest swell over the NW waters will maintain seas of 8 to 9 ft over the far northwest waters through Sat. Another set of NW swell will reach the NW waters later this weekend, ahead of a cold front that is forecast to reach 30N140W on Mon. This swell will propagate southward through the middle of next week. $$ AL