000 AXPZ20 KNHC 290300 CCA TWDEP Tropical Weather Discussion NWS National Hurricane Center Miami FL 0405 UTC Wed Apr 29 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 0300 UTC. ...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH... A surface trough extends from 07N78W to 06N82W to 09N107W. A second trough extends from 11N114W to 06N120W. The ITCZ extends from 06N124W to 06N140W. Scattered moderate isolated strong convection is occurring from 05N to 09N between 82W and 105W. Scattered moderate convection is noted from 04N to 07N between 117W and 131W. OFFSHORE WATERS WITHIN 250 NM OF MEXICO... A ridge extends from high pressure centered near 33N132W 19N120W. Recent scatterometer data shows gentle NW winds over the forecast waters under a relatively weak pressure pattern. The ridge west of Mexico will persist through Sun. Strong to near gale force northerly winds are expected in the Tehuantepec region Thu night and Fri. NW swell will build seas west of Baja California Thu night through Sat. Mostly tranquil marine conditions are expected elsewhere through Sun. OFFSHORE WATERS WITHIN 250 NM OF CENTRAL AMERICA, COLOMBIA, AND WITHIN 750 NM OF ECUADOR... Earlier scatterometer passes showed fresh winds in the Papagayo region. Gentle to moderate winds prevail elsewhere for most of the forecast area. Widespread showers and isolated thunderstorms are located SE of Costa Rica and Panama. Fresh to occasionally strong gap winds will pulse over the Papagayo region through Sun. Elsewhere, relatively tranquil marine conditions will persist through the upcoming weekend. REMAINDER OF THE AREA... A ridge extends southward from a high centered near 33N132W, across the northern waters. Moderate to locally fresh trade winds are noted in recent scatterometer data between the ridge and the ITCZ. Moderate SE to S winds prevail south of the ITCZ. Ongoing active convection is noted between 111W and 123W. Seas less than 8 ft across the entire discussion area. High pressure will dominate the northern waters through Sun. NW swell will reach the NW portion on Wed and quickly decay through Thu. NW swell will affect the waters west of Baja California on Thu, building seas to 8-9 ft east of 125W by Fri. Looking ahead, winds and seas may increase west of Baja California Norte Sun night as high pressure strengthens NW of the region. $$ Mundell