000 AXPZ20 KNHC 081556 TWDEP Tropical Weather Discussion NWS National Hurricane Center Miami FL 1605 UTC Thu Aug 8 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 1200 UTC surface analysis and satellite imagery through 1500 UTC. ...TROPICAL WAVES... A tropical wave is along 82W/83W, from 20N southward, moving W about 15 knots. Scattered moderate to isolated strong rainshowers are within 75 nm on either side of the tropical wave from 06N to 07N. A tropical wave is along 90W/91W, from 14N southward, moving W about 10 knots. Scattered moderate to isolated strong rainshowers are within 180 nm on either side of the tropical wave from 07N to 14N. A tropical wave is along 101W/102W, from 17N southward, moving W about 15 knots. Scattered moderate to isolated strong rainshowers are from 10N to 15N between 103W and 107W. We will continue to monitor closely this tropical wave, for the potential for tropical cyclone formation. The chance for tropical cyclogenesis during the next 5 days is medium, according to the latest Tropical Weather Outlook. Please read the latest eastern north Pacific Tropical Weather Outlook, MIATWOEP, for more details. A tropical wave is along 118W/119W, from 18N southward, moving W about 15 knots. No significant deep convective precipitation is apparent with this tropical wave. A tropical wave is along 138W/139W, from 17N southward, moving W about 15 knots. No significant deep convective precipitation is apparent with this tropical wave. ...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH... The monsoon trough passes through Panama near 09N78W, to 11N91W, 12N102W, 09N127W, to 11N130W. Scattered moderate to isolated strong rainshowers are within 270 nm to the north of the monsoon trough between 93W and 98W, within 90 nm to the south of the monsoon trough between 94W and 96W, within 120 nm to the south of the monsoon trough between 113W and 117W, within 75 nm to the north of the monsoon trough between 120W and 127W, and within 150 nm to the south of the monsoon trough between 122W and 127W. OFFSHORE WATERS WITHIN 250 NM OF MEXICO... A ridge will dominate the waters west of Baja California this week with little change in wind and sea conditions. A surface trough that is in the Baja Peninsula generally will maintain gentle to moderate SE to S winds in the Gulf of California through the forecast period. Long period SE and SW swell will propagate into the forecast waters tonight. The combined seas will remain less than 8 feet. A surface trough is in the Gulf of California, along 32N115W 29N113W 27N111W 24N109W. Scattered to numerous strong rainshowers are from 23N to 26N between 106W and 109W. Scattered moderate to isolated strong rainshowers are elsewhere from 21N to 26N between 106W and 110W. OFFSHORE WATERS WITHIN 250 NM OF CENTRAL AMERICA, COLOMBIA, AND WITHIN 750 NM OF ECUADOR... Moderate winds in the Gulf of Papagayo may become fresh on Monday morning and on Tuesday morning. Sea heights of 8 feet may develop along 10N between 88W and 89W on Tuesday afternoon. Gentle to moderate S to SW winds will prevail south of the monsoon trough through the forecast period. Long period SW swell will move into the southern waters today. This will cause the sea heights to build to between 6 feet and 9 feet between the coast of Ecuador and the Galapagos Islands, from tonight through Sunday night. REMAINDER OF THE AREA... High pressure prevails in the forecast waters N of 20N. Moderate to fresh winds prevail from 13N to 20N W of 135W, where the pressure gradient is enhanced between a 1022 mb high pressure center that is just to the N of the area near 31N139W, and a 138W/139W tropical wave. Gentle to moderate winds prevail across much of the remaining waters N of the monsoon trough. S of the monsoon trough: moderate to fresh southerly wind continues due to the pressure gradient between the trough and high pressure that is in the southeast Pacific Ocean. The moderate to fresh winds are helping enhance surface convergence, producing active weather S of the monsoon trough. Long period SW and SE swell generated from the southern hemisphere will continue to propagate across the forecast waters. The sea heights generally will be less than 8 feet until late tonight, when higher seas will push across the Equator. The area of seas greater than 8 feet will expand northward to about 10N between 95W and 125W from Saturday night through Monday. $$ mt