000 AXPZ20 KNHC 300403 TWDEP Tropical Weather Discussion NWS National Hurricane Center Miami FL 0405 UTC Tue Jul 30 2024 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 0350 UTC. ...SPECIAL FEATURE... An area of low pressure located south of the southern coast of Mexico near 12N99W, which is associated with a tropical wave continues to become better organized based on satellite imagery. Scattered moderate to strong convection is N of 08N between 91W and 106W. Environmental conditions appear conducive for further development of this system, and a tropical depression is likely to form within the next couple of days. The system is forecast to move westward to west-northwestward at 10 to 15 kt during the next several days, remaining offshore of the southern coast of Mexico. This system has a high chance for tropical formation in 48 hours, and a high chance within the next 7 days. ...TROPICAL WAVES... A tropical wave is near 124W from 07N to 18N, moving west around 10 to 15 kt. Scattered moderate convection is noted from 08N to 18N between 116W and 126W. ...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH... The monsoon trough extends from 09N84W to 12N97W to 13N117W to 13N130W to 10N140W. Aside from the the convection related to the Special Feature and the tropical wave described above, scattered moderate convection is noted from 08N to 15N between 106W and 116W. ...OFFSHORE WATERS WITHIN 250 NM OF MEXICO... Refer to the Special Features section above for details on the tropical wave/low along 99W. The area of low pressure in the Special Features is supporting moderate to fresh E to SE winds over the Oaxaca and Guerrero offshore waters where also scattered heavy showers, tstms and lightning are ongoing. Seas over these regions are moderate to 6 ft. Elsewhere, winds are moderate or weaker and seas are moderate in NW swell off the Baja California Peninsula, and in SW swell across the SW Mexican offshores. In the Gulf of California, seas are slight. For the forecast, environmental conditions appear conducive for further development of the low pressure south of southern Mexico, and a tropical depression is likely to form within the next couple of days. The system is forecast to move westward to west-northwestward at 10 to 15 kt during the next several days, remaining offshore of the southern coast of Mexico. Regardless of development, moderate to fresh winds and moderate to rough seas will continue to affect the remainder SW Mexican offshore waters through late Thu and the outer offshore waters of Baja California Sur Thu night through Fri night. A second area of low pressure is forecast to form offshore of the coast of Central America and southern Mexico later this week. Environmental conditions appear conducive for gradual development of this system, and a tropical depression could form towards the end of the week or this weekend. Elsewhere, winds will remain gentle to moderate with moderate seas. ...OFFSHORE WATERS WITHIN 250 NM OF CENTRAL AMERICA, COLOMBIA, AND WITHIN 750 NM OF ECUADOR... Moderate to fresh NE winds are ongoing in the Papagayo region with seas to 6 ft. Winds are moderate or weaker elsewhere. Seas are 3-5 ft in SW swell from offshore Colombia and Panama to Costa Rica, and 5-6 ft elsewhere. For the forecast, moderate to fresh winds will continue to pulse in the Gulf of Papagayo through Wed night. Elsewhere, gentle to moderate winds and moderate seas will persist through the end of the forecast period with little change in seas. Looking ahead, an area of low pressure is forecast to form offshore of the coast of Central America and southern Mexico later this week. Environmental conditions appear conducive for gradual development of this system, and a tropical depression could form towards the end of the week or this weekend. The system is forecast to move westward to west-northwestward at 10 to 15 kt during the next several days, remaining offshore. ...REMAINDER OF THE AREA... Refer to the sections above for details on the Special Feature system and the tropical wave/low analyzed along 123W. The pressure gradient between the suptropical ridge and the tropical wave near 123W continues to support moderate to fresh NE winds and moderate seas to 7 ft from 13N to 24N W of 120W. Moderate to fresh S to SE winds are also ongoing S of the monsoon trough between 105W and 132W along with moderate seas. Winds are light to moderate elsewhere, along with seas of 5-7 ft. For the forecast, moderate to fresh southerly winds and seas of around 8 ft will persist across the central waters south of the monsoon trough/ITCZ through the week. Winds may freshen north of the monsoon trough/ITCZ toward the end of the week also building seas to around 8 ft. Looking ahead, the low/tropical wave along 123W continues to produce disorganized showers and thunderstorms. Gradual development of this system is possible during the middle and latter parts of the week while it moves westward to west- northwestward at about 10 kt across the western portion of the basin. $$ Ramos