000 AXPZ20 KNHC 040253 TWDEP Tropical Weather Discussion NWS National Hurricane Center Miami FL 157 UTC Wed Sep 4 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 0220 UTC. ...SPECIAL FEATURES... Hurricane Juliette is centered near 19.0N 116.2W at 04/0300 UTC moving WNW at 6 kt. Estimated minimum central pressure is 958 mb. Maximum sustained wind speed is 105 kt with gusts to 130 kt. Numerous moderate scattered strong convection is noted in the W semicircle within 60 nm. Elsewhere, scattered moderate and isolated strong convection is seen within 210 nm in the east semicircle and within 120 nm in the west semicircle. Juliette remains a category 3 hurricane on the Saffir-Simpson Hurricane Wind Scale. Slow weakening is forecast during the next several days. Juliette is moving toward the WNW near 6 kt, and this general motion is forecast to continue during the next few days. See latest NHC forecast/advisory under AWIPS/WMO headers MIATCMEP1/WTPZ21 KNHC for more details. ...TROPICAL WAVES... A tropical wave has an axis extending from 04N98W to 14N98W, moving west around 10 kt. Scattered moderate and isolated strong convection is found from 06N to 12N between 97W and 102W. A tropical wave has an axis extending from 05N140W to low pres 1009 mb near 14N139W to 17N138W, moving west around 10 kt. Scattered moderate and isolated strong convection is present from 08N to 17N W of 133W. ...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH... The monsoon trough extends from 10N75W to 08N100W to 10N108W, then resumes southwest of Juliette from 14N118W to 12N126W to 14N138W to beyond 13N140W. Scattered moderate and isolated strong convection is observed from 05N to 09N between 86W and 91W. Scattered moderate convection is seen from 07N to 12N between 124W and 130W. OFFSHORE WATERS WITHIN 250 NM OF MEXICO... A Tropical Storm Warning remains in effect for the far outer waters from Cabo San Lazaro to Cabo San Lucas. Hurricane Juliette is moving NW away from the Pacific offshore waters adjacent to Baja California. Seas greater than 12 ft will persist over the western portion of PMZ015 through Wed morning as Juliette tracks NW toward the open ocean. Swell from Juliette propagating N will maintain seas between 8 and 12 ft for the outer waters W of Punta Eugenia to Cabo San Lucas through Wed night. A weak surface high pressure ridge north of Juliette will maintain light to gentle winds over the Baja California Norte waters for the next couple days. The ridge will strengthen late in the week and supporting moderate to fresh NW flow off the Baja California coast Fri and Sat. Looking ahead, fresh northerly winds will pulse across the Gulf of Tehuantepec Fri and Sat. Elsewhere, light to gentle winds will prevail across the region into the weekend. OFFSHORE WATERS WITHIN 250 NM OF CENTRAL AMERICA, COLOMBIA, AND WITHIN 750 NM OF ECUADOR... The latest scatterometer data revealed gentle to moderate S to SW winds south of the monsoon trough, and light and variable winds north of the monsoon trough over the Central American waters. Gentle to moderate southerly flow will persist south of the trough for the next several days. Looking ahead, moderate to fresh NE to E winds will pulse across the Gulf of Papagayo Thu through Sat as a north-south pressure gradient develops across Central America. REMAINDER OF THE AREA... Please see the Special Features section above for details on Hurricane Juliette. Swell generated by Juliette will propagate outward over the next several days, resulting in a large area of seas greater than 8 ft surrounding the storm from roughly 14N to 30N between 115W and 130W by Thu morning. Elsewhere, high pressure prevails across the forecast waters generally north of 20N and west of 120W. Overnight scatterometer data showed moderate to locally fresh trade winds between the high pressure ridge and the monsoon trough, with the strongest winds noted east of the tropical wave around 138W. E of 115W relatively tranquil conditions are observed with combined seas running in the 5 to 6 foot range. $$ CAM