000 AXPZ20 KNHC 300941 TWDEP Tropical Weather Discussion NWS National Hurricane Center Miami FL 941 UTC Thu Jul 30 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 entering the eastern Pacific is along 81W from near Ecuador through central Panama into the southwest Caribbean, moving 10 to 15 kt. Scattered moderate convection is observed east of the wave axis and south of the monsoon trough off Panama from 06N to 08N between 78W and 80W. A tropical wave is N of 04N with axis near 94W, moving west at 10 to 15 kt. Scattered moderate convection is over the Gulf of Tehuantepec along of the wave, north of 14N between 94W and 96W. A tropical wave extends from 03N to 17N with axis near 103W, moving west at 10 kt. Scattered moderate convection is from 07N to 11N between 100W and 105W. A tropical wave extends from 04N to 17N with axis near 122W, moving west at 10 to 15 kt. Scattered moderate to isolated strong convection is noted from 11N to 13N between 122W and 125W. ...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH... The monsoon trough extends from 08N78W to 08N100W to 16N115W to 11N130W to 10N140W. Scattered moderate convection is noted from 06N to 08N between 78W and 80W. Scattered moderate convection is from 07N to 11N between 100W and 105W. Scattered moderate to isolated strong convection is observed from 11N to 13N between 122W and 125W, and from 09n to 12N between 125W and 135W. OFFSHORE WATERS WITHIN 250 NM OF MEXICO... High pressure west of Baja California is interacting with low pressure over the southwest U.S. to support moderate to fresh NW winds off Baja California Norte. Seas are 3 to 5 ft off Baja California currently. Northwest swell will arrive Fri, resulting in combined seas of 4 to 6 ft off Baja California Norte. Little change is expected in the winds and seas off Baja California into early next week. The low pressure north of the area will deepen slightly Sat, supporting fresh to strong southerly winds over the northern portion of the Gulf of California. Farther south, fresh to locally strong winds will pulse at night in the Gulf of Tehuantepec into the early part of next week, as high pressure building north of the area interacts with tropical waves passing through the region. OFFSHORE WATERS WITHIN 250 NM OF CENTRAL AMERICA, COLOMBIA, and WITHIN 750 NM OF ECUADOR... The monsoon trough has reformed along roughly 09N east of 100W. This will allow increased showers and thunderstorms off Panama and Costa Rica over the next couple of day, especially as weak tropical waves migrate westward across the area. A cluster of showers and thunderstorms is already evident south of Panama. This pattern will maintain gentle to moderate southerly breezes south of the trough, and mostly light and variable winds north of the trough. The exception will be pulses of fresh offshore winds are likely in the Papagayo region through Fri. REMAINDER OF THE AREA... A ridge of high pressure extends over the waters north of 15N. The pressure gradient between the ridge and the monsoon trough is supporting moderate NE trade winds north of the monsoon trough west of 115W. Seas in this region range between 5 to 7 ft. Little change is expected into early next week. South of the monsoon trough west of 120W, fresh southerly flow and cross- equatorial southerly swell will support seas of 5 to 8 feet for the next several days. $$ Christensen