543 AXPZ20 KNHC 020921 TWDEP Tropical Weather Discussion NWS National Hurricane Center Miami FL 1005 UTC Wed Sep 2 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. ...TROPICAL WAVES... A tropical wave axis is along 82W, north of 01N into Panama, moving west at 10 to 15 kt. Scattered moderate convection is noted from 06N to 09N west of 82W. A tropical wave axis is along 108W, from 04N to 17N, moving west at 15 kt. Isolated convection is noted near the wave axis. A tropical wave axis is along 119W, from 03N to 16N, moving west at 10 to 15 kt. No significant convection is noted with the wave. ...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH... The monsoon trough extends from 09N84W to 12N106W to 09N119W, then continues from 17N117W to 13N129W to 13N140W. Scattered moderate convection is noted from 08N to 13N between 106W and 117W. Scattered moderate isolated strong convection is within 90 nm south of the trough axis between 125W and 131W. OFFSHORE WATERS WITHIN 250 NM OF MEXICO... A weak pressure pattern persists across the region, and recent scatterometer data shows light to gentle winds prevail across the offshore waters of Mexico. A surface trough is analyzed along the western part of the Gulf of California. Little change in marine conditions is expected during the next several days. Gentle to moderate NW winds will prevail west of Baja California and central Mexico through the weekend. OFFSHORE WATERS WITHIN 250 NM OF CENTRAL AMERICA, COLOMBIA, and WITHIN 750 NM OF ECUADOR... Scatterometer data shows gentle to moderate S to SW winds south of the monsoon trough, with light to gentle winds north of the trough, offshore of Guatemala and El Salvador. Seas are 4-7 ft across much of the region, except 7-8 ft in southerly swell between the Galapagos Islands and Ecuador. Gentle to moderate monsoonal flow will freshen later this week west of Panama, Colombia and Ecuador. Southerly cross-equatorial swell will increase wave heights east of 90W through Fri. REMAINDER OF THE AREA... A weak pressure gradient prevails north of the monsoon trough, resulting in mainly light to gentle winds north of 20N. Sea heights were 7-8 ft in northerly swell in far NW waters, but are expected to subside this morning as swell decays in the area. Moderate southerly flow is noted south of the monsoon trough between 100W and 125W. Seas are 5 to 7 ft, with isolated areas around 8 ft im fresh monsoonal flow. 7 to 8 ft seas are south of the equator in southerly cross-equatorial swell. Little change is expected in marine conditions during the next few days. $$ Mundell