000 AXPZ20 KNHC 280204 TWDEP Tropical Weather Discussion NWS National Hurricane Center Miami FL 0405 UTC Tue Aug 27 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 0000 UTC surface analysis and satellite imagery through 0130 UTC. ...TROPICAL WAVES... A tropical wave is along 86W/87W, N of 06N to the coast of Nicaragua, moving W at around 15 kt. Only scattered showers are noted near the wave axis in the east Pacific. A tropical wave is along 101W/102W, N of 04N to the coast of SW Mexico, moving W at 10-15 kt. Scattered moderate and isolated strong convection is noted from 07N to 13N between 95W and 103W. A tropical wave is along 132W, from 02N to 15N, moving W at 10-15 kt. Scattered moderate and isolated strong convection is noted from 07N to 09N between 128W and 134W. Scattered moderate convection is noted from 05N to 06N between 131W and 134W. ...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH... The monsoon trough extends from Panama near 09N78W to 10N100W to 09N110W to 10N127W. The intertropical convergence zone axis extends from 06N134W to 07N140W. Scattered moderate and isolated strong convection is noted from 05N to 09N between 90W and 95W, from 06N to 10N between 105W and 109W, within 180 nm SW of the axis between 111W and 120W, from 09N to 11N between 120W and 130W, and within 45 nm either side of the axis between 134W and 140W. Scattered moderate convection is noted from 09N to 11N between 89W and 93W. OFFSHORE WATERS WITHIN 250 NM OF MEXICO... The remnant low of Ivo has now dissipated into a trough extending over the offshore waters from 21N116W to 26N115W, with no significant convection. This trough should completely dissipate during the next 24-48 hours while remaining nearly stationary. Winds in the Gulf of Tehuantepec will become northerly at fresh to strong Wed night through early Fri, with moderate to fresh pulses at night thereafter. High pressure ridging will prevail elsewhere along the outer offshore waters boundary, with mainly gentle to moderate NW to N winds. Gentle to moderate southerly winds in the Gulf of California will increase to fresh to strong near the entrance late tonight into early Wed, with similar conditions in the northern Gulf Wed night into early Thu, then again Sat night into early Sun. No significant swell events are anticipated through the remainder of the week and the upcoming weekend. Offshore WATERS WITHIN 250 NM OF CENTRAL AMERICA, COLOMBIA, AND WITHIN 750 NM OF ECUADOR... Moderate to fresh NE to E winds in the Gulf of Papagayo will pulse to fresh to strong tonight into early Wed, then again Wed night into early Thu, with weaker winds thereafter. Light to gentle winds are expected elsewhere N of the monsoon trough, with gentle to moderate S to SW winds S of the monsoon trough. No significant southerly swells are anticipated through the remainder of the week and the upcoming weekend. REMAINDER OF THE AREA... Weak and broad high pressure is centered near 25N136W with ridging extending to the SE to near 18N116W. Earlier scatterometer data showed mainly gentle anticyclonic winds around the high, N of the ITCZ/monsoon trough, locally moderate. Earlier altimeter data showed seas of 4-6 ft N of the ITCZ/monsoon trough, with 4-7 ft seas with some cross-equatorial southerly swell S of the ITCZ/monsoon trough. The high is forecast to linger through the end of the week while strengthening slightly to 1022 mb by Fri afternoon, then weakening again this weekend. Little change in marine conditions is expected through this time period. $$ Lewitsky