000 AXPZ20 KNHC 211606 TWDEP Tropical Weather Discussion NWS National Hurricane Center Miami FL 1535 UTC Tue Jul 21 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 1200 UTC surface analysis and satellite imagery through 1545 UTC. ...SPECIAL FEATURES... Tropical Storm Douglas is centered near 12.4N 124.2W at 21/1500 UTC, moving west-southwest at 13 kt. Estimated minimum central pressure has lowered to 998 mb. Maximum sustained wind speed has increased to 55 kt with gusts to 65 kt. Satellite imagery continue to show that the cyclone is strengthening as observed by its overall cloud pattern. Numerous moderate isolated strong convection is from 10N-14N between 122W and 126W. Scattered moderate convection is elsewhere from 06N-16N between 121W and 132W. Additional strengthening is forecast during the next several days, and Douglas 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. Post-Tropical Cyclobe Seven-E is centered near 19.3N 134.1W at 21/1500 UTC moving west at 11 kt. Estimated minimum central pressure is 1009 mb. Maximum sustained wind speed is 30 kt with gusts to 40 kt. There is no deep convection associated with this cyclone. Weakening is forecast, and the post-tropical cyclone is expected to dissipate Wednesday or Wednesday night. 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 extends from 02N-15N with axis near 94W, moving westward at about 10 kt. Numerous moderate strong convection is N of 11N between 92W and 101W. Scattered moderate to isolated strong convection is from 05N-11N between 96W and 103W. A tropical wave extends from 04N-17N with axis near 108W, moving westward at 10-15 kt. Scattered moderate convection is from 07N-12N between 105W and 114W. ...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH... The monsoon trough axis extends from 09N84W to 09N100W to 12N117W. It resumes as 12N130W and continues to 12N140W. Numerous moderate to strong convection is from 06N-12N E of 93W. Scattered moderate from 06N-12N west of 135W. OFFSHORE WATERS WITHIN 250 NM OF MEXICO... The gradient between high pressure that ridges southeastward from the northeast Pacific and a low pressure trough along Baja California will continue to induce fresh to strong northwest winds across the waters west of Baja California del Norte through late today. To the east of the trough, fresh to strong southeast winds can be expected in the northern Gulf of California, briefly diminishing tonight, then increase again Wed afternoon and diminish to mainly fresh speeds late Wed night into Thu. Elsewhere, generally gentle to moderate winds will continue through the rest of the week. OFFSHORE WATERS WITHIN 250 NM OF CENTRAL AMERICA, COLOMBIA, and WITHIN 750 NM OF ECUADOR... Southwest winds flowing into lower pressure associated with the monsoon trough will increase to fresh to locally strong speeds through late in the week as a strong tropical wave crosses from Central America to the offshore waters. Seas of 5-7 ft can be expected with these winds through Thu, then build to 6-8 ft on Fri. Low pressure may forming on the tropical wave at that time, with a good possibility of numerous showers and thunderstorms affecting most of the Central American offshore waters. REMAINDER OF THE AREA... Please see Special Features section above for on Tropical Storm Douglas and on Post-Tropical Cyclone Seven-E, both in the western part of the area. A 1031 mb high pressure center is located well north of the area 40N153W, with a ridge extending from it to across the northern waters. Outside conditions associated with Tropical Storm Douglas, the pressure gradient between the high and the monsoon trough is supporting mainly moderate northeast to east winds north of the monsoon trough and west of about 118W, along with seas in the 5-7 ft range. $$ Ramos