000 AXPZ20 KNHC 061501 TWDEP Tropical Weather Discussion NWS National Hurricane Center Miami FL 1431 UTC Sat Jul 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 1200 UTC surface analysis and satellite imagery through 1500 UTC. ...SPECIAL FEATURES... Post-Tropical Cyclone Barbara is centered near 18.7N 139.2W at 06/1500 UTC, moving W at 15 kt. Estimated minimum central pressure is 1000 mb. Maximum sustained winds have weakened to 35 kt with gusts to 45 kt. The post-tropical cyclone will continue moving toward the west at about the same rate of speed until dissipation in a couple of days. Scattered showers are within 120 nm north of the center. See latest NHC forecast at https://www.nhc.noaa.gov/text/MIATCMEP2.shtml for additional details. Tropical Storm Cosme has formed and is centered near 15.6N 115.7W at 06/1500 UTC, moving WNW at 12 kt. Estimated minimum central pressure is 1001 mb. Maximum sustained winds are 45 kt with gusts to 55 kt. The tropical storm is expected to continue with the same motion today, followed by a turn to the northwest on Sunday. Little change in strength is forecast during the next 48 hours, with some weakening anticipated by late Monday. Scattered moderate and isolated strong showers and thunderstorms are located within 240 nm northeast of the center. See latest NHC forecast at https://www.nhc.noaa.gov/text/MIATCMEP2.shtml for additional details. ...TROPICAL WAVES... The axis of a tropical wave is near 98W, moving W around 15 kt. Scattered moderate and isolated strong convection is present north of 05N between 95W and 102W. The axis of a tropical wave is near 122W, moving W around 15 kt. Scattered moderate and isolated strong convection is present within 180 nm of the axis between 08N and 12N. ...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH... The monsoon trough emerges off of Costa Rica near 09N84W to 14N110W, where it is broken by Tropical Storm Cosme. The monsoon trough begins again at 13N117W to 10N134W. The ITCZ extends from 10N134W to 07N140W. In addition to convection associated with tropical waves as mentioned above, scattered moderate convection is located within 120 nm S of the monsoon trough between 85W and 93W and within 60 nm of the ITCZ between 133W and 137W. OFFSHORE WATERS WITHIN 250 NM OF MEXICO... A ridge extends from a high several hundred nm west of California to the Revillagigedo Islands. Quiescent generally NW winds will prevail for the next several days. Newly-formed Tropical Storm Cosme will move away from Mexico with little wind impacts though moderate to rough seas from southerly swell will continue Sun night along the entrance to the Gulf of California including Cabo Corrientes. OFFSHORE WATERS WITHIN 250 NM OF CENTRAL AMERICA, COLOMBIA, AND WITHIN 750 NM OF ECUADOR... A north-south pressure gradient across Central America is causing a fresh to strong Gulf of Papagayo gap wind event this morning. This will weaken later today. Otherwise, moderate to fresh offshore winds will prevail north of the monsoon trough, while gentle to moderate S to SW winds are expected south of the trough during the next few days. Moderate to rough long period S to SW swell currently impacting all zones will diminish beginning on Tue. REMAINDER OF THE AREA... Please see the special features section for more information on Post-Tropical Cyclone Barbara and Tropical Storm Cosme. For the remainder of the area, the combined effect of Barbara and Cosme have caused a weak pressure gradient and generally gentle to moderate winds prevail. Such conditions will continue for the next few days. East of 125W and south of 20N moderate to rough long period S to SW swell currently impacting the area will diminish beginning on Tue. $$ Landsea