000 AXPZ20 KNHC 220823 TWDEP Tropical Weather Discussion NWS National Hurricane Center Miami FL 1005 UTC Fri May 22 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 0600 UTC surface analysis and satellite imagery through 0815 UTC. ...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH... The monsoon trough extends from northern Colombia near 09N75W to 11N100W to 1011 mb low pressure near 11N112W to 1011 mb low pressure near 11N118W to 1011 mb low pressure near 10N122W to 1011 mb low pressure near 10N129W. The ITCZ continues from 10N129W to 07N134W to 08N140W. Scattered moderate and isolated strong convection is noted from 02N to 06N between the coast of Colombia and 80W, from 07N to 10N between 91W and 96W, from 10N to 12N between 102W and 105W, from 08N to 13N between 110W and 115W, and from 09N to 11N between 124W and 127W. Scattered moderate convection is noted from 07N to 09N between 123W and 126W. OFFSHORE WATERS WITHIN 250 NM OF MEXICO... A ridge extends from 32N135W to across the Revillagigedo Islands to 16N104W. Moderate NW-N winds and 5-8 ft seas prevail N of 20N, except southerly winds and seas 3 ft or less in the Gulf of California. Gentle to moderate onshore winds prevail S of 20N along with 4-6 ft seas. Agricultural fires in Mexico continue to produce haze from near the Tehuantepec region all the way to NW Mexico, while moderate smoke reducing visibilities to around 3-5 nm exists over the coastal waters south of Cabo Corrientes. A trough moving through Baja California may allow for strong SW gap winds into the northern Gulf of California this upcoming night into early Sat. Otherwise, little change in marine conditions is expected through the weekend into early next week. OFFSHORE WATERS WITHIN 250 NM OF CENTRAL AMERICA, COLOMBIA, AND WITHIN 750 NM OF ECUADOR... Some patchy haze due to agricultural fires will remain possible near coastal locations, mainly from El Salvador westward. Light to gentle winds persist off Central America, with gentle to moderate SW winds farther south off Colombia and Ecuador. Wave heights are in the 4-6 ft due to SW swell. Shower and thunderstorms have developed during the overnight hours along and just inland the coasts of Central American and Colombian coasts due to local drainage flow convergence. An active monsoon trough will lead to moderate SW winds along with scattered showers and thunderstorms over the offshore waters of southern Central America and Colombia. Elsewhere, generally gentle to moderate breezes will continue through the next few days. REMAINDER OF THE AREA... A ridge extends from 32N135W to across the Revillagigedo Islands to 16N104W. Mainly moderate trades prevail, locally fresh, while corresponding seas are mainly 4-7 ft, locally to 8 ft near several weak low pressure areas along the monsoon trough/ITCZ region. Fresh to strong northerly winds offshore of southern California will send fresh northerly swell of 8-9 ft into the waters roughly N of 27N and E of 125W during the upcoming night through Sun, decaying thereafter. Southerly flow south of the monsoon trough may strengthen to moderate to fresh late this weekend into early next week allowing for a growing area of 8-10 ft seas early next week. Meanwhile, the ridge will breakdown and shift W early next week as weak troughing develops across the N central waters. Winds W of the troughing may increase to moderate to fresh helping to build seas to around 8 ft early next week. $$ Lewitsky