000 AXPZ20 KNHC 240246 TWDEP Tropical Weather Discussion NWS National Hurricane Center Miami FL 132 UTC Wed Jul 24 2019 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 FEATURE... Tropical Storm Dalila is centered near 19.4N 118.4W at 24/0300 UTC, moving toward the NW at 6 kt. A turn toward the west- northwest is forecast to occur by late Wednesday and that motion should continue until the system dissipates in a few days. The estimated minimum central pressure is 1006 mb. Maximum sustained wind speed is 35 kt with gusts to 45 kt. Weakening is forecast during the next couple of days, and Dalila is expected to become a tropical depression later tonight or Wednesday and will likely degenerate into a remnant low in a day or so. Currently, Dalila is experiencing wind shear from the N, and the center is totally exposed. Most of the remaining convective activity is noted within about 120 nm S semicircle. Scattered moderate convection is seen elsewhere from 15N to 19N between 116W and 120W. Please see the latest NHC forecast/advisory under AWIPS/WMO headers MIATCMEP5/WTPZ25 KNHC or at website htpps://www.nhc.noaa.gov/text/MIAHSFEP2.shtml for further details ...TROPICAL WAVES... A tropical wave is along 96W from 04N to 16N, moving west around 10 kt. Scattered moderate convection is noted from 08N to 11N between 95W and 97W. A tropical wave is along 106W from 04N to 17N, moving W around 10 kt. Scattered moderate convection is observed from 10N to 13N between 105W and 107W. ...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH... The monsoon trough extends from 09N83W to 10N97W to 08N110W. Then, continues W of T.S. Dalila from 12N121W to a 1012 mb low pressure located near 08N137W. The ITCZ continues from 08N137W to beyond 06N140W. Outside of the convection associated with the tropical waves and T.S. Dalila, a cluster of moderate to strong convection is within about 75 nm S of the trough between 81W and 84W. Scattered moderate to isolated strong convection is noted elsewhwere from 05N to 09N between 81W and 90W. OFFSHORE WATERS WITHIN 250 NM OF MEXICO... Winds and seas have diminished across the waters around Clarion Island as Tropical Storm Dalila continues to move away from the island. A weak ridge will dominate the offshore forecast waters W of Baja California through Fri. Light to gentle southerly winds are expected across the Gulf of California during the next several days. Northerly winds will increase to a fresh to strong breeze across the Tehuantepec region by late Thu night. This gap wind event is expected to persist through Sun. OFFSHORE WATERS WITHIN 250 NM OF CENTRAL AMERICA, COLOMBIA, AND WITHIN 750 NM OF ECUADOR... Moderate to locally fresh S to SW winds south of the monsoon trough will generally maintain seas of 5 to 7 ft off the coasts of Panama and Colombia through Fri. Seas will also build to near 8 ft over the equatorial waters Thu and Fri as long-period S swell moves into the region. Fresh to strong gap winds will return to the Gulf of Papagayo on Thu in the wake of a passing tropical wave. REMAINDER OF THE AREA... A ridge dominates most of the forecast waters N of 18N W of 120W. Recent scatterometer and altimeter satellite passes indicate moderate to fresh trade winds from 16N to 21N west of 135W with seas to 8 ft in mixed swell. A recent altimeter pass provided observations of 8 to 10 ft seas S of 09N between 128W and 137W where fresh SE winds are blowing. Another round of long period southerly swell will cause seas to build to around 8 ft along the Equator to the S of the Galapagos Islands Wed night into Thu. $$ GR