000 AXPZ20 KNHC 011457 TWDEP Tropical Weather Discussion NWS National Hurricane Center Miami FL 1415 UTC Sat Jun 1 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... ...Heavy Rainfall Potential Over Central America and Southern Mexico... A large, low-level cyclonic circulation called a Central American Gyre will persist across southern Mexico, Central America, and the far eastern Pacific for the next several days. Locally heavy rainfall is likely to continue over portions of Central America and southern Mexico during the next several days. These rains could cause flash flooding and mudslides in areas of mountainous terrain. Abundant moisture will persist across the region this weekend. Please refer to your local meteorological service for more details. ...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH... The monsoon trough extends across Central America and southern Mexico, then passes through the coastal areas of Guerrero near 16N99W to 09N107W to 09N120W. The ITCZ continues from 09N120W to beyond 06N140W. Scattered moderate isolated strong convection is N of 04N between 78W and 84W, N of 15N to the coast of Mexico between 95W and 101W, 08N to 11N between 113W and 122W, and from 05n to 10N west of 132W. ...DISCUSSION... OFFSHORE WATERS WITHIN 250 NM OF MEXICO... Weak high pressure is maintaining gentle to moderate winds and 4 to 6 feet seas across open waters off Mexico. A trough will move through Baja California Norte and the Gulf of California today, supporting fresh SW gap winds over the northern part of the Gulf of California through Sun night. Fresh NW winds will pulse off Los Cabos through early next week. Farther south, weak low pressure is forecast to develop off Chiapas. OFFSHORE WATERS WITHIN 250 NM OF CENTRAL AMERICA, COLOMBIA, AND WITHIN 750 NM OF ECUADOR... Gentle to moderate SW winds and seas of 5 to 7 ft are noted across the offshore forecast waters of Central America. These marine conditions will persist into Monday. Farther south, seas will build to 8 ft in SW swell between Ecuador and the Galapagos Islands tonight and persist through Tue. Seas will briefly subside Tue night and Wed before another set of SW swell approaches the Galapagos Islands Wed night REMAINDER OF THE AREA... A ridge extends from a 1030 mb high pressure centered near 34N142W southeastward to the Revillagigedo Islands. This system is producing mainly moderate to fresh NE to E winds across the waters W of 125W. Various altimeter passes showed 7-8 ft seas from 10N to 20N west of 135W. The high pressure will remain nearly stationary through early next while slightly weakening. As a result, the aerial extent and strength of the trades will decrease. $$ EC/KONARIK