000 AXPZ20 KNHC 080238 TWDEP Tropical Weather Discussion NWS National Hurricane Center Miami FL 120 UTC Sat Jul 8 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 0000 UTC surface analysis and satellite imagery through 0245 UTC. ...SPECIAL FEATURE... Tropical Storm Eugene was centered near 12.5N 111.6W at 08/0300 UTC. This is about 630 NM south of the southern tip of the Baja Peninsula. Maximum sustained winds are 35 KT with gusts to 45 KT. Estimated minimum central pressure was 1005 MB. Eugene was moving NW or 315 degrees at 8 KT. Scattered moderate and isolated strong convection is noted within 180 NM of the center of Eugene in the SE semicircle and within 90 NM in the N quadrant. Infrared satellite imagery shows increasing overall organization of the system with cyclonically curved convective bands around the circulation center. The environment will remain favorable for Eugene to strengthen, and the system is forecast to become a hurricane within 36 hours. For addition information please refer to the latest NHC forecast/advisory under AWIPS/WMO headers MIATCMEP5/WTPZ25 KNHC. ...TROPICAL WAVES... A tropical wave extends from the Isthmus of Tehuantepec to the East Pacific waters near 13N93W, moving west at 15 KT. Scattered moderate to strong convection was observed along the wave's axis mainly over the Ithsmus of Tehuantepec and the Bay of Campeche. A tropical wave extends from 20N130W to a 1011 MB low near 18N130W to 15N130W, moving west at 15 KT. No significant convection was noted in association with the low and the wave. ...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH... The axis of the Monsoon Trough extends from 09N83W to 09N93W to 12N105W then resumes from 10N118W to 12N130W to 09N140W. Scattered moderate to strong convection was was noted within 120 NM n of the axis between 81W and 88W. Scattered moderate isolated strong convection was noted within 120 NM S of the axis between 93W and 105W, and within 120 to 180 NM either side of the axis between 127W and 133W. ...DISCUSSION... OFFSHORE WATERS WITHIN 250 NM OF MEXICO... A ridge extends across the waters W of Baja California from 30N128W to 20N115W. Gentle to moderate N-NW flow prevails W of the Baja California peninsula, moderate to fresh N winds in the Gulf of Tehuantepec, and light to gentle winds across the Gulf of California. Seas are ranging 4-6 ft in the open waters W of Mexico, with 1-3 ft seas in the Gulf of California. Nocturnal winds will pulse to a max of 20 kt each night in the Gulf of Tehuantepec, then diminish during the day. Tropical storm Eugene forecast to impact the PMZ015 offshore waters zone early on Sunday into Monday. Fresh to strong northerly winds pulse in the Gulf of Tehuantepec late Sun night. OFFSHORE WATERS WITHIN 250 NM OF CENTRAL AMERICA, COLOMBIA, AND WITHIN 750 NM OF ECUADOR... Moderate to locally fresh nocturnal winds are expected in the Gulf of Papagayo for the weekend. Gentle to moderate southerly winds are expected S of the Monsoon Trough. Long period cross- equatorial S to SW swell and seas to 6-8 ft W of Colombia and Ecuador will continue gradually subsiding today and into the weekend. REMAINDER OF THE AREA... See the Special Feature section for more information on newly formed T.S. Eugene. Outside of this area, gentle to moderate trade winds will prevail N of the Monsoon Trough, while moderate to fresh southerly winds will be S of the trough axis. Seas will be generally 5-7 ft. These conditions are expected to continue through the weekend. $$ Cobb