000 AXPZ20 KNHC 020245 TWDEP Tropical Weather Discussion NWS National Hurricane Center Miami FL 0230 UTC Mon Sep 2 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 0240 UTC. ...SPECIAL FEATURES... Tropical Storm Juliette centered near 15.4N 110.6W at 02/0300 UTC moving WNW at 11 kt. Estimated minimum central pressure is 998 mb. Maximum sustained wind speed is 50 kt with gusts to 60 kt. Numerous moderate to strong convection is noted within 60 nm of center. Scattered moderate isolated strong convection is elsewhere from 11N to 19N between 104W and 115W. Juliette is forecast to continue on a west-northwestward to northwestward track the next few days while continuing to intensify. The current forecast has Juliette reaching hurricane strength Monday. See latest NHC forecast/advisory under AWIPS/WMO headers MIATCMEP1/WTPZ21 KNHC for more details. ...TROPICAL WAVES... The axis of a tropical wave is near 86W N of 03N, moving W at 15 kt. Scattered moderate isolated strong convection was noted from 05N to 10N between 84W and 91W. The axis of a tropical wave is near 133W from 02N to 16N, moving W at 15 kt. Scattered moderate isolated strong convection is noted from 07N to 13N between 131W and 140W. ...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH... The monsoon trough extends from 08N78W to 10N86W to 08N94W to 09N100W, it then resumes near 11N116W to 10N121W to 12N132W to 10N140W. Scattered moderate isolated strong convection was noted from 07N to 12N between 115W and 125W. Scattered moderate isolated strong convection was noted from 07N to 15N between 125W and 131W. OFFSHORE WATERS WITHIN 250 NM OF MEXICO... The center of tropical cyclone Juliette is forecast to remain outside of the offshore forecast waters. However, hurricane force winds may brush the far outer offshore waters of forecast zone PMZ015 on Mon night. Seas of 8 to 16 ft associated with Juliette are also expected to spread across the offshore forecast waters through Wed. A weak pressure gradient due to the passage of Juliette W of the region will allow for light to gentle variable winds elsewhere through Thu night. Moderate NW winds are forecast over Baja California Norte on Fri. Otherwise, nocturnal northerly drainage flow in the Gulf of Tehuantepec will pulse to fresh to strong tonight into early Mon morning. OFFSHORE WATERS WITHIN 250 NM OF CENTRAL AMERICA, COLOMBIA, AND WITHIN 750 NM OF ECUADOR... Moderate to fresh winds will pulse at night in the Gulf of Papagayo through Tue. Moderate to fresh S to SW winds are expected over Ecuador and Colombia offshore waters through Tue. Otherwise, light to gentle winds are expected N of the monsoon trough while gentle to moderate southerly winds are expected S of it. REMAINDER OF THE AREA... Please see the special features section above for details on Tropical Storm Juliette. Elsewhere, high pressure prevails across the northern forecast waters N of 20N. The pressure gradient between the area of high pressure and the monsoon trough will support moderate to locally fresh winds N of the monsoon trough to around 20N. Seas of 4 to 7 ft will prevail across most of the region W of 120W through Mon. $$ AL