000 AXPZ20 KNHC 060305 TWDEP Tropical Weather Discussion NWS National Hurricane Center Miami FL 211 UTC Tue Nov 6 2018 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 FEATURE... Tropical Storm Xavier's deep convection has dissipated this afternoon. Without the deep convection, Xavier is no longer classified as a tropical cyclone, and is now classified as Post- Tropical Cyclone Xavier, which was centered near 19.1N 107.5W at 06/0300 UTC moving WNW at 5 kt. Estimated minimum central pressure is 1004 mb. Maximum sustained wind speed is 40 kt with gusts to 50 kt. The system will still continue to produce gale force winds within 30 NM north of the low center through Tuesday morning before diminishing below gale force later in the day. With Xavier moving away from the coastline of Mexico, swells generated from the system that have impacted the SW coast of Mexico are decreasing. Though on the downward trend, the swells will continue to impact these areas through late this evening. See latest NHC forecast/advisory under AWIPS/WMO headers MIATCMEP5/WTPZ25 KNHC for more details. ...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH... The monsoon trough extends from 09N78W to 09N90W to low pres near 08N96W to 11N110W. The ITCZ extends from 11N123W to beyond 11N140W. No significant convection is noted. ...DISCUSSION... OFFSHORE WATERS WITHIN 250 NM OF MEXICO... Please see special features section above for more on Post- Tropical Storm Xavier. A ridge extending from 1027 mb high pressure near 38N140W to just west of Baja California Sur will continue to dominate the area the next several days, producing a light to gentle anticyclonic flow. Outside of the areas impacted by Xavier, gentle to moderate winds and 4 to 6 ft seas will prevail elsewhere across the open waters. Gulf of Tehuantepec: A cold front will shift across the Gulf of Mexico later this week. The cold front is currently forecast to reach the Bay of Campeche by the start of the weekend. This will help usher in the next gap wind event. Winds are forecast to build to near gale force late Saturday, with the possibility of reaching minimal gale force Saturday night. Gulf of California: High pressure will build over the Great Basin region later this week. This will support fresh to strong northerly winds over the northern gulf through Sat morning. OFFSHORE WATERS WITHIN 250 NM OF CENTRAL AMERICA, COLOMBIA, AND WITHIN 750 NM OF ECUADOR... Light to gentle winds are forecast north of the monsoon trough. Moderate to fresh southwest monsoon flow is expected south of the monsoon trough through the middle of next week. Looking ahead, long period SW swell will push north of the equator by late Tue into the waters off Panama and Costa Rica. REMAINDER OF THE AREA... Outside of Post- Tropical Xavier, moderate to locally fresh winds prevail N of the ITCZ and west of 130W, while moderate southeasterly flow is noted south of the ITCZ. Seas to 9 ft, in N to NE swell, are noted over the waters NW of a line from 30N121W to 24N140W. Seas over this area will begin to subside Tuesday. A new set of northerly swell will propagate into the northern waters Wednesday, with seas building to 8 ft N of 28N between 120W and 131W. $$ AL