592 AXPZ20 KNHC 272228 TWDEP Tropical Weather Discussion NWS National Hurricane Center Miami FL 1605 UTC Fri Jul 27 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 1800 UTC surface analysis and satellite imagery through 2145 UTC. ...SPECIAL FEATURE... Tropical Depression Gilma centered near 14.7N 129.9W at 27/2100 UTC or 1730 sm E of South Point Hawaii moving W at 10 kt. Estimated minimum central pressure is 1007 mb. Maximum sustained wind speed is 30 kt with gusts to 40 kt. Scattered moderate to strong convection is currently observed within 120 nm either side of a line from 14N126W to 09N135W. See latest NHC forecast/advisory under AWIPS/WMO headers MIATCPEP3/WTPZ33 KNHC for additional details. ...TROPICAL WAVES... A tropical wave is analyzed from 05N100W to 16N100W and is estimated to be progressing W at 20 kt. Scattered moderate and isolated strong convection is currently noted within 120 nm either side of the wave axis. A tropical wave extends from 07N116W to 16N116W and is moving W at 12 kt. Scattered moderate isolated strong convection is noted within 180 nm E and 270 nm W of the wave axis. ...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH... The monsoon trough extends NW off the Pacific coast of Colombia at 08N78W across the northern Gulf of Panama and across the far SW waters of the Caribbean Sea turning W to the Pacific coast of Costa Rica at 10N86W, then turns SW to 07N96W, then turns NW through tropical waves at 08N101W to 11N118W to 12N124W where it loses identity. Scattered moderate isolated strong convection is observed elsewhere within 120 nm either side of line from 05N78W to 11N96W to 08N102W to 11N114W. ...DISCUSSION... OFFSHORE WATERS WITHIN 250 NM OF MEXICO... A broad N-NW to S-SE orientated trough will meander E to W across the Baja California Peninsula and the Gulf of California into early next week while a second weak trough meanders across the offshore waters W of the northern Baja Peninsula. Light to gentle breezes are forecast W of Baja Peninsula and Central Mexico through Mon when guidance suggests that moderate NW flow will begin to develop within 60 nm of the central Baja California Peninsula. Expect 3 to 5 ft throughout. Gulf of Tehuantepec: Gentle to moderate onshore flow is expected during the daylight hours then becoming gentle offshore flow during the overnight hours. Gulf of California: Moderate southerly winds are expected N of 29N overnight. Otherwise gentle to locally moderate southerly flow expected through the end of the week. Scattered moderate isolated strong convection is currently observed across the gulf waters from 26N to 29.5N. OFFSHORE WATERS WITHIN 250 NM OF CENTRAL AMERICA, COLOMBIA, AND WITHIN 750 NM OF ECUADOR... Gulf of Papagayo: Moderate easterly flow is expected through early early next week. Gentle to occasionally moderate E winds are forecast elsewhere N of the monsoon trough which is meandering between 08N and 10N. Moderate to locally fresh southerly winds are forecast S of the monsoon trough through late Sat accompanied by 5 to 7 ft seas. REMAINDER OF THE AREA... The remnant low of Tropical Depression Nine-E is centered near 11N139W 1009 mb. Strong E winds are forecast within 120 nm over the N semicircle of the low which should move W of 140W within about 12 hours. Scattered moderate isolated strong convection is observed within 60 nm N and within 180 nm S semicircles of the center. See the special features section for information on Tropical Depression Gilma and the tropical waves section for details on two tropical waves. Otherwise, a surface ridge will meander across the discussion area from near 32N135W to near 12N100W surrounded by moderate t locally fresh anticyclonic winds and 5 to 7 ft seas. Moderate to locally fresh southerly forecast elsewhere S of the monsoon trough or roughly 10N for the next several days. $$ Nelson