000 AXPZ20 KNHC 220903 TWDEP Tropical Weather Discussion NWS National Hurricane Center Miami FL 1005 UTC Wed Jul 22 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 0600 UTC surface analysis and satellite imagery through 0900 UTC. ...SPECIAL FEATURES... Tropical Storm Douglas is centered near 11.9N 128.0W at 0900 UTC, moving west at 13 kt. Estimated minimum central pressure is 998 mb. Maximum sustained winds are 55 kt with gusts to 65 kt. Numerous moderate to strong convection within 60 nm of the center, and in bands between 75 and 150 nm from the center. Scattered moderate isolated strong convection is elsewhere from 06N to 14N between 124W and 130W. Douglas is expected to intensify, and could become a hurricane later today. Please read the latest NHC Public Advisory at https://www.nhc.noaa.gov/text/MIATCPEP2.shtml and Forecast/ Advisory at https://www.nhc.noaa.gov/text/MIATCMEP2.shtml for more details. ...TROPICAL WAVES... A tropical wave is along 89W, north of 01N into Central America, moving westward at 15 to 20 kt. Scattered moderate to strong convection is north of 09N between 85W and 89W. A tropical wave is along 99W, north of 01N into southern Mexico, moving westward at 15 kt. Scattered moderate isolated strong convection is from 07N to 12N between 95W and 105W. A tropical wave is along 112W, from 01N to 17N, moving westward at 15 kt. Scattered moderate convection is from 08N to 11N between 108W and 114W. ...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH... The monsoon trough axis extends from 08N78W in Panama to 10N89W to 08N98W to 10N104W to 12N115W to 11N122W. It resumes from 08N129W to 07N140W. Minimal convection is noted except as mentioned above. OFFSHORE WATERS WITHIN 250 NM OF MEXICO... The gradient between high pressure that ridges east-southeast from the northeast Pacific and a trough across Baja California is supporting fresh northwest winds west of Baja California Norte. Moderate to fresh southerly winds are expected east of the trough in the northern Gulf of California through Fri. Gentle to locally moderate winds will continue elsewhere through the weekend. OFFSHORE WATERS WITHIN 250 NM OF CENTRAL AMERICA, COLOMBIA, and WITHIN 750 NM OF ECUADOR... Widespread showers associated with an active monsoon trough and tropical waves passing across Central America into the eastern Pacific will continue into the weekend. Fresh south to southwest winds will persist south of the monsoon trough axis, along 08N to 09N, through Sun, with gradually building seas of 6 to 7 ft expected. REMAINDER OF THE AREA... Please see the Special Features section above for information on Tropical Storm Douglas. The remnant low of Post-Tropical Cyclone Seven-E centered near 19N137W lacks deep convection. The low is expected to continue weakening and move west of 140W during the next 24 hours, then dissipate by tonight. High pressure located well north of the area extends a ridge into the northern waters. Outside of conditions associated with Tropical Storm Douglas, the pressure gradient between the high and the monsoon trough is supporting moderate trade winds north of the monsoon trough east of about 115W, along with seas in the 5 to 7 ft range. $$ Mundell