000 AXPZ20 KNHC 130244 TWDEP Tropical Weather Discussion NWS National Hurricane Center Miami FL 023 UTC Wed May 13 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 0000 UTC surface analysis and satellite imagery through 0240 UTC. ...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH... The monsoon trough extends from 08N78W to 07.5N103W to 09N111W to 1010 mb low pressure near 08N116W to 08N130W. The ITCZ continues from 08N130W to 07N140W. Scattered moderate and isolated strong convection is noted from 02N to 09N E of 85W, from 02N to 10N between 89W and 100W, and from 05N to 10N between 110W and 130W. OFFSHORE WATERS WITHIN 250 NM OF MEXICO... Haze and areas of smoke from agricultural fires in Mexico may reduce visibilities near the coast from the Tehuantepec region to near Cabo Corrientes, and across the area between Las Marias and Revillagigedo Islands. A cold front has moved into the northern waters off the coast of Baja California Norte, with a surface ridge south of the front west of Baja California. Moderate to fresh winds prevail over the waters W of the Baja California peninsula, as well as the far northern Gulf of California. Light to gentle winds prevail elsewhere. Seas are in the 5-7 ft range W of Baja California Norte, and downstream the Gulf of Tehuantepec. 5-6 ft seas prevail elsewhere over the open waters off Mexico, and 1-2 ft over the Gulf of California. A building ridge across the northern forecast waters will strengthen winds mainly N of Cabo San Lazaro Wed night through Fri night. Seas of 8-9 ft in NW swell will reach the waters N of Punta Eugenia by late Thu, and propagate SE between Punta Eugenia and Cabo San Lazaro through Fri night, subsiding to less than 8 ft by late Sat. Winds and seas will diminish and subside Sun and Sun night. Mainly light to moderate southerly flow and seas of 3 ft or less will prevail inside the Gulf of California, with the exception of the northern part of the Gulf where a dissipating cold front moving across the area could briefly bring fresh winds. OFFSHORE WATERS WITHIN 250 NM OF CENTRAL AMERICA, COLOMBIA, AND WITHIN 750 NM OF ECUADOR... Haze and areas of smoke from agricultural fires in Central America may reduce visibilities near the coast from Costa Rica to Guatemala. Gentle to moderate winds prevail between the Galapagos Islands and Ecuador, with light to gentle winds elsewhere. Seas are in the 4-5 ft range. Winds will freshen tonight and Wed over the Gulf of Papagayo. Gentle to moderate winds will continue between the Galapagos Islands and Ecuador, with light to gentle winds elsewhere. Seas will be mainly 4-7 ft primarily in long period SW swell. A new set of long period SW swell, with a leading edge period of 19 to 21 seconds, will reach the waters between Ecuador and the Galapagos Islands by Thu night into early Fri, and the Pacific coast of Central America by late Fri. Seas will build to 8 ft SW of the Galapagos Islands Fri and Fri night, subsiding on Sat and Sat night. REMAINDER OF THE AREA... N of 20N, a cold front extends from 30N120W to 21N140W. Gentle to moderate winds prevail. Seas are in the 6-7 ft range W of the front and 5-6 ft elsewhere. The front is forecast to slowly dissipate through the middle of the week as it moves eastward across the northern forecast waters. S of 20N, weak ridging combined with lower pressure in the vicinity of the ITCZ and within the monsoon trough are supporting moderate to fresh trades along with 5-7 ft seas. Little change in the trade wind flow is expected through the week. The next front will approach 30N140W from the NW on Fri night, moving across the NW waters this weekend with another set of NW swell at 8-10 ft behind it. A set of cross equatorial long period SW swell will propagate across the S waters between Ecuador and 120W on Wed, building seas to 9-10 ft S of the equator, and to 8-9 ft S of 10N and W of the Galapagos to about 120W through Fri night, decaying Sat and Sat night. $$ AL