000 AXPZ20 KNHC 081554 TWDEP Tropical Weather Discussion NWS National Hurricane Center Miami FL 1342 UTC Sun Sep 8 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 1200 UTC surface analysis and satellite imagery through 1440 UTC. ...TROPICAL WAVES... A tropical wave has an axis extending from 04N82W to 18N82W, moving W around 15 kt. Scattered moderate and isolated strong convection is seen from 04N to 10N between 78W and 90W. A tropical wave has an axis extending from 03N96W to 15N96W, moving W at 15 to 20 kt. Scattered moderate and isolated strong convection is found from 07N to 16N between 90W and 104W. This tropical wave is being monitored for the potential of tropical cyclone development. This system has a low probability of becoming a tropical cyclone during the next 48 hours, with a medium chance for development within the next 5 days. Please refer to the latest eastern North Pacific Tropical Weather Outlook for more information. A tropical wave has an axis extending from 04N82W to 18N82W, moving W around 20 kt. Scattered moderate and isolated strong convection is taking place from 08N to 13N between 108W and 114W. A tropical wave has an axis extending from 04N130W to 16N130W, moving W around 25 kt. Scattered moderate and isolated strong convection is taking place from 07N to 16N between 127W and 136W. ...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH... The monsoon trough extends from low pres 1010 mb near 10N72W to 08N78W to 11N96W to 12N121W to 09N131W. The ITCZ continues from 09N131W to beyond 10N140W. Scattered moderate and isolated strong convection is noted from 10N to 15N between 118W and 127W. OFFSHORE WATERS WITHIN 250 NM OF MEXICO... A ridge is building west of the Baja California peninsula with NW to N winds across the offshore forecast waters west of the peninsula. Winds will strengthen north of Punta Eugenia through tonight. Low pressure over the U.S. desert southwest will promote fresh to strong SE to S winds over the northern Gulf of California through Mon. Fresh to strong northerly winds are expected across the Tehuantepec region Wed through Sun as high pressure builds SW over the western Gulf of Mexico. OFFSHORE WATERS WITHIN 250 NM OF CENTRAL AMERICA, COLOMBIA, AND WITHIN 750 NM OF ECUADOR... Moderate to fresh NE to E winds will generally prevail over the Gulf of Papagayo through Thu night. Elsewhere, mainly light to gentle winds will persist north of the monsoon trough, with gentle to moderate S to SW winds south of the monsoon trough for the next several days. REMAINDER OF THE AREA... The remnant low of Juliette is centered near 24.5N132W. High pressure is centered NW of the area near 36N143W. The pressure gradient between the area of high pressure and remnant low is supporting near gale force winds N of the low center as depicted by scatterometer imagery from around 1610Z. The remnant low will continue to shift westward the next few days while weakening. The remnant low will pass west of the forecast waters early on Tue. Swell generated by this system has resulted in seas 8 ft or greater covering the waters N of 22N and W of 129W. Winds and seas in this area will diminish by Tue night as the low weakens and moves farther W of the area. Looking ahead, an area of low pressure is expected to form by mid week several hundred miles SW of the southern coast of Mexico. The low is forecast to be spawned by a tropical wave currently near 96W. Please see the tropical waves section above for more information. $$ CAM