000 AXPZ20 KNHC 070238 TWDEP Tropical Weather Discussion NWS National Hurricane Center Miami FL 115 UTC Sat Sep 7 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... Tropical Storm Juliette is centered near 23.7N 126.0W at 07/0300 UTC moving WNW or 290 degrees at 11 kt. Estimated minimum central pressure is 997 mb. Maximum sustained wind speed is 55 kt with gusts to 65 kt. Juliette will continue to move toward the WNW through tonight. A turn toward the west is forecast to occur on Saturday and a general westward motion should continue into early next week. Additional weakening is expected during the next 48 hours, and Juliette is forecast to degenerate into a remnant low on Sunday. Satellite imagery indicates numerous moderate convection within 60 nm W and 30 nm E semicircles. Scattered moderate convection is noted elsewhere from 22N to 25N between 124W and 127W. See latest NHC forecast/advisory under AWIPS/WMO headers MIATCMEP1/WTPZ21 KNHC for more details. ...TROPICAL WAVES... A tropical wave is along 100W from 05N to 15N. Scattered moderate isolated strong convection is from 08N to 10N between 100W and 103W. A tropical wave is along 115W from 05N to 16N. Scattered moderate convection is from 08N to 14N between 110W and 120W. ...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH... The monsoon trough extends from northern Colombia near 10N75W to 08N80W to 10N100W to 10N115W to 12N125W to 11N140W. Outside of the convection associated with the tropical waves, scattered moderate isolated strong convection is over the Gulf of Panama, from 10N to 14N between 120W and 130W, and from 06N to 10N W of 135W. OFFSHORE WATERS WITHIN 250 NM OF MEXICO... A ridge is building between T.S. Juliette, which is west of the area, and the Baja California peninsula. This will bring back the normal NW to N winds across the offshore forecast waters W of Baja by tonight. Then, gentle to moderate NW to N winds will prevail through Sun, with increasing winds to a fresh to strong breeze N of Punta Eugenia Sat night through Sun night. Seas are forecast to build to 9 ft with these wind speeds. Thereafter, moderate to fresh winds are expected N of Cabo San Lazaro through Tue morning. Fresh to strong southerly are also expected across the northern Gulf of California on Sun, with seas building to near 8 ft N of 30N. These winds may persist through Mon 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. 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. Seas of 5 to 7 ft will dominate much of the forecast waters as long period cross-equatorial SW swell reaches the area during this weekend. REMAINDER OF THE AREA... Please see the Special Features section above for details on T.S. 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. As Juliette moves westward, the pressure gradient between the tropical cyclone and a ridge to the NW is forecast to produce a larger area of 20-25 kt winds in the NW quadrant of Juliette during the weekend. Elsewhere, gentle to moderate trades will prevail west of 130W and north of the monsoon trough, with little change expected over the next several days. $$ GR