000 AXPZ20 KNHC 010749 TWDEP Tropical Weather Discussion NWS National Hurricane Center Miami FL 533 UTC Wed Apr 1 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 0800 UTC. ...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH... Climatologically, during portions of the months of March and April of each year, a double ITCZ develops across the eastern Pacific basin, with a convergence zone of clouds and some convective activity on either side of the Equator. This pattern is present today while no monsoon trough is analyzed E of 140W. Currently, a trough extends from 08N78W to 05N94W. The ITCZ in the northern Hemisphere continues from 05N94W to 06N110W to 05N123W to 02N140W. A second ITZC is south of the Equator. A cluster of moderate to isolated strong convection is noted from 03.5N to 05N between 122W and 124W. Scattered moderate convection is observed from 03N to 04.5N between 85W and 87W. At this time, no significant convection is associated with the ITZC in the southern Hemisphere. OFFSHORE WATERS WITHIN 250 NM OF MEXICO... The weak pressure gradient between a ridge over the offshore waters of Baja California and a meandering trough over NW Mexico is producing gentle to moderate NW to N winds W of the Baja California peninsula. Little change in this weather pattern is expected through Thu. As the high pressure rebuilds on Fri, expect moderate to locally fresh NW to N winds across the waters W of Baja California. Long period NW swell will reach the waters N of Punta Eugenia today. Seas will peak near 10 ft tonight through Thu night. This swell event will propagate SE, with seas in the 6 to 9 ft range dominating most of the waters off Baja California on Fri. Gulf of California: Mainly light winds are expected across the Gulf of California, with the exception of the northern part of the Gulf where gentle to moderate winds will prevail. Gulf of Tehuantepec: A brief pulse of fresh northerly winds is expected over the Gulf of Tehuantepec this morning as high pressure builds across the western Gulf of Mexico in the wake of a cold front currently moving across the area. OFFSHORE WATERS WITHIN 250 NM OF CENTRAL AMERICA, COLOMBIA, AND WITHIN 750 NM OF ECUADOR... Weak surface ridging over W Caribbean should produce moderate to locally fresh NE-E winds across the Papagayo region during the overnight and early morning hours. Elsewhere, light to gentle winds and seas in the 3 to 5 ft range are forecast through the next several days. On Sun, the W Caribbean ridge is anticipated to rebuild and force again fresh to strong NE to E gap winds in the Gulf of Papagayo region. Peak seas there on Sun may reach up to 8 ft. Long period SW swell should reach the waters between Ecuador and the Galapagos Islands on Sun, building seas up to 7 ft down there. REMAINDER OF THE AREA... A surface ridge continues to dominate the northern forecast waters. A moderate N-S pressure gradient between the ridge and lower pressure along the ITCZ is causing fresh to strong NE trades, mainly from 08N to 13N W of 135W, and from 10N to 13N between 125W and 135W. Peak seas are around 11 ft in the area of strongest winds. The pressure gradient will relax today and Thu, but a small area of fresh to strong trades will persist with seas of 9 or 10 ft. On Fri, the high pressure will rebuild across the forecast waters, bringing another increase in the trade wind flow. Large SW swell event should begin impacting the waters near the Equator between 100W and 130W on Sat. Peak seas should be 8 ft on Sun. $$ GR