000 AXPZ20 KNHC 060253 TWDEP Tropical Weather Discussion NWS National Hurricane Center Miami FL 151 UTC Fri Sep 6 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 0300 UTC. ...SPECIAL FEATURES... Hurricane Juliette is centered near 21.8N 121.8W at 06/0300 UTC moving toward the NW or 305 degrees at 11 kt. Estimated minimum central pressure is 976 mb. Maximum sustained wind speed is 75 kt with gusts to 90 kt. Satellite imagery shows numerous moderate to isolated strong convection within 90 nm W and 30 nm E semicircles of center. Scattered moderate is elsewhere from 19N to 23N between 119W and 124W. Juliette will begin to move toward the west-northwest tonight or early Friday. A turn toward the west is forecast on Saturday and a general westward motion should continue through the weekend. Additional weakening is forecast during the next few days, and Juliette is forecast to become a tropical storm on Friday night, and degenerate to a remnant low on Sunday. See latest NHC forecast/advisory under AWIPS/WMO headers MIATCMEP1/WTPZ21 KNHC for more details. ...TROPICAL WAVES... A tropical wave is along 93W N of 05N moving W at 10 to 15 kt. Scattered moderate isolated strong convection is near the northern end of the wave axis N of 13N between 90W and 93W. Scattered moderate is from 07N to 11N between 93 and 97W. A tropical wave is relocated along 110W based on satellite imagery and the TPW animation, that shows a well defined moisture surge in association with the wave. Scattered moderate to isolated strong convection is noted from 07N to 13N between 105W and 117W. ...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH... The monsoon trough axis extends from a 1009 mb low pressure located over northern Colombia near 08N80W to 10N93W to 11N100W to 11N110W to 09N114W, then resumes from 12N122W to 11N132W to 13N140W. Outside of the convection associated with the tropical waves, scattered moderate convection is noted from 11N to 14N between 120W and 125W. Similar convection is also observed from 09N to 12N W of 130W. OFFSHORE WATERS WITHIN 250 NM OF MEXICO... Hurricane Juliette continues to move away from Baja California Sur. However, large waves associated with Juliette will continue to propagate across the far western portion of the offshore forecast waters of Baja California through Fri. As Juliette moves westward, a ridge will build between the tropical cyclone and the Baja California peninsula. Winds will remain light and variable across the Baja California offshore waters through Fri, with the return of the normal NW to N winds by Fri night. Then, gentle to moderate NW to N winds will prevail through Sun, with fresh to strong winds N of Punta Eugenia through Sun night. Thereafter, moderate to fresh winds are expected N of Cabo San Lazaro through Tue morning. Elsewhere, moderate to fresh north winds are expected across the Gulf of Tehuantepec mainly at night during the weekend. Fresh to strong southerly winds may develop over the northern Gulf of California early on Sun as a low pressure trough deepens along the Baja California peninsula. OFFSHORE WATERS WITHIN 250 NM OF CENTRAL AMERICA, COLOMBIA, AND WITHIN 750 NM OF ECUADOR... Moderate to fresh NE to E winds are expected in the Gulf of Papagayo through Sat. The most recent scatterometer pass provided observations of these wind speeds extending downwind to near 90W. Elsewhere, mainly light to gentle winds will persist N of the monsoon trough, with gentle to moderate south to southwest winds south of the monsoon trough for the next several days. REMAINDER OF THE AREA... Please see the Special Features section above for details on Hurricane Juliette. Swell generated by Juliette will continue to propagate outward over the next few days, resulting in a large area of seas greater than 8 ft around the storm. Rough seas will continue near the center of Juliette through the weekend. Elsewhere, Tropical Storm Akoni west of the area will continue to move away from the forecast region, with lingering seas to 8 ft from 12N to 20N W of 130W. Gentle to moderate trades will prevail west of 130W and north of the monsoon trough. Little change is expected elsewhere over the next several days. $$ GR