000 AXPZ20 KNHC 080316 TWDEP Tropical Weather Discussion NWS National Hurricane Center Miami FL 205 UTC Tue Sep 8 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 0000 UTC surface analysis and satellite imagery through 0300 UTC. ...TROPICAL WAVES... A tropical wave is along 98W N of 03N into southern Mexico, moving west at 10 kt. Scattered moderate convection is noted from 09N to 13N between 95W and 100W. A tropical wave is along 137W from 03N to 18N, moving west at 10 to 15 kt. Scattered moderate convection is from 08N to 10N between 132W and 137W. ...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH... The monsoon trough extends across Central America from 14N92W to 13N98W to 1006 mb low pressure near 18N114W to 11N129W. The ITCZ continues from 11N129W to 10N140W. Scattered moderate convection is noted within about 120 nm S of the monsoon trough between 117W and 130W. Similar convection is from 12N to 14N between 110W and 115W. OFFSHORE WATERS WITHIN 250 NM OF MEXICO... Former T.S. Julio was absorbed by a large surface low located to the south of the cyclone. Currently, a 1006 mb low pressure is analyzed 18N114W. Only gentle to moderate winds are noted associated with this system. A ridge across the eastern slopes of the Sierra Madre Oriental in Mexico was supporting a weak gap wind event across the Tehuantepec region. The ridge has weakened and now moderate to locally fresh northerly winds are noted over the Gulf of Tehuantepec The forecast calls for mainly light and variable winds over the next several days. As it is normal for this time of the year, mainly SE to S winds will prevail across the Gulf of California. A 1003 mb low pressure over the northern part of the Gulf supports fresh to strong SE winds N of 30N. These winds will persist through Tue, then veer to the NW Tue night and Wed as a strong high pressure center settles over the Great Basin area. Seas are expected to briefly build to 6-8 ft N of 30N on Wed. Mainly light to gentle W to NW winds and seas in the 4-6 ft range will prevail across the offshore waters of Baja California through mid-week as a broad cyclonic circulation dominates the region. OFFSHORE WATERS WITHIN 250 NM OF CENTRAL AMERICA, COLOMBIA, and WITHIN 750 NM OF ECUADOR... Moderate to locally fresh SW winds will prevail S of the monsoon trough through the forecast period while light and variable winds are expected N of it. Seas, over the offshore forecast waters, will be in the 5 to 7 ft range in long-period southerly swell. REMAINDER OF THE AREA... A ridge dominates the waters N of 20N W of 120W. Gentle to moderate winds prevail north of the monsoon trough. Moderate to fresh southerly flow persists south of the monsoon trough, with areas of 7 to 8 ft seas. Long-period southerly swell is spreading northward across the region E of 120W, reaching the offshore forecast waters of Mexico, Central America, Colombia and Ecuador with seas in the 5 to 7 ft range. Seas will slightly subside toward the end of the work-week. $$ GR