000 AXPZ20 KNHC 090340 TWDEP Tropical Weather Discussion NWS National Hurricane Center Miami FL 340 UTC Sun Aug 9 2020 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 0000 UTC surface analysis and satellite imagery through 0300 UTC. ...SPECIAL FEATURES... Newly formed Tropical Depression Nine-E is centered near 14.7N 102.6W at 09/0300 UTC moving WNW at 12 kt. Estimated minimum central pressure is 1007 mb. Maximum sustained wind speed is 30 kt with gusts to 40 kt. Numerous moderate to isolated strong convection is observed within 90 nm in the northeast semicircle of T.D. Nine-E. This depression is expected to continue to intensify as it moves WNW, reaching hurricane strength near Socorro Island by late Mon. Please read the latest NHC Public Advisory at https://www.nhc.noaa.gov/text/MIATCPEP4.shtml and Forecast/ Advisory at https://www.nhc.noaa.gov/text/MIATCMEP4.shtml for more details. ...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH... The monsoon trough extends from 08N78W to low pressure near 09N87W 1009 mb to T.D. Nine-E near 14.7N 102.6W 1007 mb to 10N125W to 10N140W. Numerous moderate to isolated strong convection is observed within 90 nm in the northeast semicircle of T.D. Nine-E. Scattered moderate to isolated strong convection is ongoing within 60 nm of 09N99W. Scattered moderate convection is noted within 60 nm either side of monsoon trough between 105W and 140W. OFFSHORE WATERS WITHIN 250 NM OF MEXICO... Please see the special features section above for more on T.D. Nine-E. The developing system will bring increasing winds and seas over portions of the offshore waters between Acapulco and Puerto Vallarta into early next week before impacting the Revillagigedo Islands through Tue. Heavy rainfall, rough surf, and dangerous rip currents are possible over coastal areas as well. Elsewhere, moderate to locally fresh winds prevail over much of the waters off Baja California north of Punta Eugenia, supported by the pressure gradient between high pressure west of the area and lower pressure over Mexico. Gentle to moderate northerly flow continues from Punta Eugenia southward to Cabo San Lazaro. Light to gentle winds are noted south of Baja California Sur and elsewhere off the southwestern coast of Mexico. Gentle to moderate SE winds continue across the Gulf of California. Moderate to locally fresh NW winds will prevail across the waters north of Cabo San Lazaro through Sun, then diminish early next week. Fresh to strong northerly winds will pulse for the next several nights across the Gulf of Tehuantepec. OFFSHORE WATERS WITHIN 250 NM OF CENTRAL AMERICA, COLOMBIA, and WITHIN 750 NM OF ECUADOR... Gentle to locally moderate southerly winds prevail south of the monsoon trough. Wave heights are in the 4-6 ft range. The gentle to moderate southerly winds will persist south of the monsoon trough for the next several days. Moderate to fresh winds will occasionally pulse across the Gulf of Papagayo region through the middle of next week, mainly at night. Long- period southerly swell near the Galapagos Islands will propagate northward through this weekend. REMAINDER OF THE AREA... Please see the special features section above for more information about T.D. Nine-E. The subtropical ridge extends across the waters north of 20N. Moderate to locally fresh trade winds are noted north of the monsoon trough and west of 120W, with gentle to moderate breezes elsewhere north of the monsoon trough. Little change in marine conditions is expected in this region over the next several days. Farther south, generally moderate southerly flow is noted across the forecast waters south of 10N. Long-period southerly swell has crossed the equator, but is starting to subside. Monsoon flow has freshened between 100W and 120W. The locally generated wind waves has combined with the southerly swell, building seas to 6 to 8 ft roughly from 05N and 10N between 105W and 120W. $$ Christensen