000 AXPZ20 KNHC 061555 TWDEP Tropical Weather Discussion NWS National Hurricane Center Miami FL 1546 UTC Wed May 6 2020 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. ...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH... A surface trough extends from 09N82W to 09N104W. The ITCZ extends from 10N112W to 09N126W. Scattered moderate isolated strong convection is noted from 08N TO 13.5N between 83W AND 96W AND from 04.5N TO 11N between 108W AND 134W. Scattered moderate to strong convection is noted from 07.5N TO 14N between 96W AND 104W. OFFSHORE WATERS WITHIN 250 NM OF MEXICO... A ridge extends from 1025 mb surface high pressure near 32N137W to NW of the Revillagigedo Islands. Moderate to fresh NW winds are occurring to the east of the ridge offshore Baja California Norte. Seas are 8 to 10 ft off Baja California Norte, mainly north of 29N, in NW to N swell. Gentle to moderate winds and 5 to 7 ft seas are noted elsewhere. NW swell will persist off Baja California Norte into Thu night, while winds will diminish by Thu. Some moderate SE winds could develop in the Gulf of California Thu night and Fri. Gentle to moderate westerly breezes and 3 to 5 ft seas persist across the Mexican offshore waters south of 20N. Smoke from agricultural fires is expected to impact visibility near the shore, especially offshore Chiapas and Oaxaca, through tonight. A late season cold front moving through the Gulf of Mexico will deliver near gale force gap winds across the Gulf of Tehuantepec tonight and Thu night with seas building to 11 ft. Seas generated by the northerly gap winds will mix with longer period southerly swell reaching the area late Thu. More gap winds could develop in the Gulf of Tehuantepec Sun. OFFSHORE WATERS WITHIN 250 NM OF CENTRAL AMERICA, COLOMBIA, AND WITHIN 750 NM OF ECUADOR... Moderate gap winds are occurring across the Papagayo region this morning. Elsewhere light to gentle winds prevail. Seas are 4 to 6 ft through the region. Fresh gap winds will pulse tonight across the Papagayo region, before increasing to strong Thu night as high pressure builds north of the area. SW long period swell will reach the Galapagos Islands Thu and Fri, and may reach some waters off Central America Fri night into the weekend. REMAINDER OF THE AREA... Northerly swell associated with strong winds off the coast of southern California are moving into the waters west of Guadalupe Island, north of 25N and east of 125W. 1025 mb high pressure centered farther west near 32N137W is supporting moderate to fresh trade winds farther south into the deep tropics. Seas are 6 to 8 ft elsewhere. The swell is expected to taper off into late week, with seas diminishing below 8 ft Thu night. A weak trough has developed along the ITCZ west of 127W, and will drift westward through late week. Meanwhile Southern Hemispheric long period SW swell will move across the equator east of 125W this evening, bringing 8 to 10 ft seas south of 11N and east of 125W by late Fri. This swell will subside across the tropics below 8 ft Sat evening as it propagates toward Central America. $$ Stripling