000 AXPZ20 KNHC 031534 TWDEP Tropical Weather Discussion NWS National Hurricane Center Miami FL 1534 UTC Sat Aug 3 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. ...SPECIAL FEATURE... Tropical Depression Eight-E centered near 14.7N 121.2W at 03/1500 UTC moving WNW at 9 kt. Estimated minimum central pressure is 1009 mb. Maximum sustained wind speed is 30 kt with gusts to 35 kt. Strong westerly shear is keeping numerous moderate to scattered strong thunderstorms within 150 nm in the eastern semicircle of exposed center the depression. The depression will continue to move WNW over the next couple of days, through an increasingly hostile environment. For this reason, the depression is not expected to intensify much and should dissipate altogether by Sun night. See latest NHC forecast/advisory under AWIPS/WMO headers MIATCMEP3/WTPZ23 KNHC for more details. ...TROPICAL WAVES... The axis of a tropical wave is near 91W N of 04N, moving W around 15 kt. Scattered moderate isolated strong convection was noted within 90 nm of the tropical wave axis. The axis of a tropical wave is near 121W from 05N to 17N to T.D. Eight-E mentioned in the Special Features section. The tropical wave is moving W around 15 kt. Scattered moderate and isolated strong convection is within 150 nm NE quadrant of the low. ...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH... The monsoon trough extends from 08N78W to 09N85W to 09N105W. The ITCZ extends from 10N121W to 09N129W to 09N135W. Scattered moderate and isolated strong convection is noted within 240 nm of the coast of Central America and southern Mexico. Numerous moderate to scattered strong convection within 150 nm in the eastern semicircle of T.D. Eight-E. OFFSHORE WATERS WITHIN 250 NM OF MEXICO... High pressure ridging will dominate the waters west of Baja California through early next week. Southerly swell will propagate in to the waters south of 20N early next week. OFFSHORE WATERS WITHIN 250 NM OF CENTRAL AMERICA, COLOMBIA, AND WITHIN 750 NM OF ECUADOR... Moderate to locally fresh NE winds will prevail N of the monsoon trough, while gentle to moderate S to SW winds will prevail south of the trough. Southerly swell will propagate into the waters between the coast of Ecuador and the Galapagos Islands Sun, and continue to spread northward through early next week. REMAINDER OF THE AREA... An overnight scatterometer satellite pass indicated winds to 30 kt within 90 nm in the northeast quadrant of the low pressure system that developed into T.D. Eight-E. Seas could reach as high as 12 ft within this envelop of winds as the depression moves WNW through tonight. Winds and seas will diminish substantially Sun into Mon as the depression weakens. Farther west, Tropical Storm Flossie continues to move west of the area into the Central Pacific basin and is centered near 18.6N 143.5W at 03/1500 UTC moving WNW at 12 kt. Estimated minimum central pressure is 998 mb. Maximum sustained wind speed is 50 kt with gusts to 60 kt. Scattered moderate isolated strong convection associated to Flossie is noted over the forecast waters from 19N to 21N between 138W and 140W. Flossie will continue to shift away from the area, and its impacts on the forecast area will decrease. By Sunday morning, any impacts from Flossie over the forecast waters will fall below advisory criteria, with winds diminishing to 20 kt or less and seas subsiding below 8 ft. Elsewhere, an area of southerly swell will propagate northward, reaching the equator this weekend, then reaching to near 10N early next week, assisted by freshening southerly winds S of the monsoon trough. $$ Christensen