000 AXPZ20 KNHC 052101 TWDEP Tropical Weather Discussion NWS National Hurricane Center Miami FL 2205 UTC Mon Aug 5 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 1800 UTC surface analysis and satellite imagery through 2100 UTC. ...TROPICAL WAVES... The axis of a tropical wave is near 87W, moving W at 10-15 kt. Scattered moderate and isolated strong convection is noted from 06N to 08N between 84W and 87W. The axis of a tropical wave is near 104W, moving W around 10 kt. Scattered moderate convection is noted from 11N to 13N between 102W and 104W. The axis of a tropical wave is near 124W, moving W around 10 kt. Scattered moderate and isolated strong convection is noted from 09N to 15N between 120W and 125W. ...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH... The monsoon trough extends from 08N78W to 10N100W to 12N121W to 11N130W to 12N140W. Scattered moderate and isolated strong convection is noted within 120 nm south of the monsoon trough east of 83W, and within 150 nm south of the monsoon trough between 89W and 98W. Scattered moderate convection is noted within 150 nm south of the monsoon trough between 106W and 113W and between 116W and 119W, and also from 06N to 12N between 126W and 135W. OFFSHORE WATERS WITHIN 250 NM OF MEXICO... A high pressure ridge prevails across the forecast waters west of the Baja California peninsula, producing gentle to moderate NW flow over the adjacent offshore waters as supported by recent ship and scatterometer observations. This ridge will prevail across the waters through the week and into the upcoming weekend, with little change in wind and sea conditions. Southerly swell will continue impacting the waters south of Cabo San Lazaro while gradually subsiding through mid week. Another set of long period southerly swell will reach the southern waters by Thu, but combined seas are expected to remain less than 8 ft through the forecast period. OFFSHORE WATERS WITHIN 250 NM OF CENTRAL AMERICA, COLOMBIA, AND WITHIN 750 NM OF ECUADOR... Gentle to moderate S to SW winds south of the monsoon trough are increasing to moderate to fresh through Thu, with seas building to 8 ft. Moderate to locally fresh NE to E winds will prevail north of the monsoon trough near the Gulf of Papagayo region for the next several days. Elsewhere, light to gentle breezes will prevail north of the trough. Seas will build greater than 8 ft between Ecuador and the Galapagos Islands Wed night through Sat night as a fresh set of long period, southerly swell propagates into the region. REMAINDER OF THE AREA... The remnant low of Gil is centered near 15.5N129.5W. Associated winds have diminished to 20 kt or less, with peak seas analyzed to 8 ft. Seas will subside below 8 ft later tonight. Elsewhere, high pressure prevails across the forecast waters north of 20N. Moderate to locally fresh NE winds prevail within the enhanced gradient between this ridge and the remnants of Gil. Otherwise, gentle to moderate winds continue across the high seas domain. Southerly swell remains across much of the region east of 125W. Seas of 8-9 ft prevail south of the equator to the west of the Galapagos Islands, as well as reaching north of the equator to 09N between 92W and 115W. This swell will propagate slightly more northward Tue while mixing with locally generated wind waves associated with a surge in the monsoon flow. Looking ahead, another set of long period southerly swell will propagate across the equator by mid week and spread northward across the area into the upcoming weekend. $$ Lewitsky