000 AXPZ20 KNHC 120926 TWDEP Tropical Weather Discussion NWS National Hurricane Center Miami FL 648 UTC Wed Jul 12 2017 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 0600 UTC surface analysis and satellite imagery through 0830 UTC. ...SPECIAL FEATURES... Tropical Storm Eugene is centered near 22.9N 121.1W at 12/0900 UTC or about 440 nm SW of Punta Eugenia Mexico moving NW at 8 kt. Estimated minimum central pressure is 1005 mb. Maximum sustained wind speed is 35 kt with gusts to 45 kt. Widely scattered moderate convection is within 90 nm of center within the N semicircle. Eugene will continue to weaken...becoming a post-tropical remnant low within 24 hours as it moves NW across increasingly cooler waters. See the latest NHC Forecast/Advisory under AWIPS/WMO headers MIATCMEP5/WTPZ25 KNHC for more details. Tropical Depression Six-E is centered near 12.1N 110.7W at 12/0900 UTC or about 650 nm S of the southern tip of Baja California moving W at 8 kt. Estimated minimum central pressure is 1007 mb. Maximum sustained wind speed is 30 kt with gusts to 40 kt. Scattered moderate convection is from 09N to 15N between 109W and 114W. The system is likely to become a tropical storm on Wednesday and possibly a hurricane by Friday. See the latest NHC Forecast/Advisory under AWIPS/WMO headers MIATCMEP1/WTPZ21 KNHC for more details. ...TROPICAL WAVES... Tropical wave extends from 09N93W to 16N94W moving W at 10 kt. Scattered moderate convection is from 06N to 11N between 92W and 97W. Scattered moderate and isolated strong convection is from 15N to 17N between 92W and 94W. ...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH... The monsoon trough extends from 08N78W to 08N94W to 09N107W... then from 13N117W to 10N134W. The ITCZ extends from 10N134W to 09N140W. Scattered moderate convection is from 06N to 09N E of 81W...from 05N to 09N between 83W and 91W...from 06N to 09N between 99W and 107W...and from 10N to 12N between 126W and 139W. ...DISCUSSION... OFFSHORE WATERS WITHIN 250 NM OF MEXICO... Higher winds and large seas associated with Tropical Storm Eugene will remain W of the Baja California offshore zones. Swell generated by the tropical cyclone will maintain seas ranging from 8-10 ft in the offshore waters zones through late Wednesday as Eugene continues to weaken. The pressure gradient between ridging W of Baja California Norte and troughing across the Baja California peninsula is supporting gentle to moderate southerly flow across the Gulf of California, which is expected to persist through much of this week. Pulses of fresh winds are possible across the Gulf of Tehuantepec each night through Sunday, briefly building seas to 6-7 ft in the morning. OFFSHORE WATERS WITHIN 250 NM OF CENTRAL AMERICA, COLOMBIA, AND WITHIN 750 NM OF ECUADOR... Moderate to fresh nocturnal winds are expected across the Gulf of Papagayo the next several days with the strongest push expected Thu night into early Fri with seas to 8 ft at that time. Gentle to moderate southerly winds are expected south of the monsoon trough axis. Long period cross-equatorial southerly swell and seas 6 to 7 ft are forecast west of Colombia and Ecuador. REMAINDER OF THE AREA... The remnant low of Tropical Storm Eugene will dissipate by the weekend across the waters N of 25N between 123W and 130W. Elsewhere, moderate to occasional fresh trade winds will prevail north of the convergence zone, while gentle to moderate southerly winds will be south of the trough axis. Seas will be generally 5 to 7 ft. Tropical Depression Six-E will move westward during the next several days and possibly intensify to a hurricane within 48 hours. Otherwise little change is expected in the forecast waters S of 20N through Saturday. $$ HUFFMAN