000 AXPZ20 KNHC 110815 TWDEP Tropical Weather Discussion NWS National Hurricane Center Miami FL 1005 UTC Sat Apr 11 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... A surface trough extends across most of the tropical NE Pacific from 07N78W to 06N91W to 06N120W. The ITCZ continues from 06N120W to 06N132W to 03N140W. Scattered moderate to strong convection is noted from 03N to 08N between 84W and 90W. OFFSHORE WATERS WITHIN 250 NM OF MEXICO... Fresh NW winds, associated with a high pressure ridge extending SE into the area, prevail across the waters from Punta Eugenia southward to Cabo Corrientes and the Revillagigedo Islands, where seas remain in the 5-7 ft range. Low pressure along the southern California coast is inducing moderate W to SW winds in northernmost Baja California, while gentle to moderate NW to N winds prevail elsewhere west of Baja California Norte. Seas are in the 5-7 ft range over the open waters off Mexico, and 3-5 ft over the southern Gulf of California. Deep layer low pressure persisting along the southern California coast has forced the NE Pacific ridge to build underneath this feature to the waters offshore of Cabo Corrientes. The low will shift slowly inland and weaken this morning, and allow winds to freshen offshore Baja California Sur and Cabo Corrientes through this evening. Seas there will build 7-8 ft through this evening then slowly subside. Otherwise, moderate to fresh NNW winds will prevail through the weekend across the Baja waters, as well as the southern Gulf of California. Moderate to fresh NW to W winds can be expected offshore from Manzanillo to Acapulco. Winds and seas will diminish Sun through Tue as the high reorganizes farther west of the region. OFFSHORE WATERS WITHIN 250 NM OF CENTRAL AMERICA, COLOMBIA, AND WITHIN 750 NM OF ECUADOR... Moderate offshore gap winds prevail across the Gulf of Papagayo region and the Gulf of Panama this morning. Light to gentle onshore winds prevail elsewhere. Seas are generally in the 4-5 ft range. Moist S to SW flow is expected to gradually increase over the forecast area this weekend as large scale atmospheric conditions become favorable for enhanced widespread convection through the middle of next week. Conditions appear favorable for locally heavy rainfall to persist over the waters near the trough axis, and shift eastward into southern Costa Rica, Panama, western Colombia and northwest Ecuador during the next several days. Please refer to forecasts and statements issued by your local meteorological services. Otherwise, marine winds and seas will remain mostly tranquil across the offshore waters through the weekend. Cross-equatorial S-SW swell will move into the regional waters beginning Sun. REMAINDER OF THE AREA... The gradient between high pressure over NW waters between 130W and 140W and lower pressures near the equator is supporting moderate to fresh northeast trades, and 7-8 ft seas, from 05N to 20N west of 115W. Winds across the trade wind belt will diminish this weekend as the high weakens. Widespread active convection occurring along and north of the equatorial trough will continue through Sun, as conditions become favorable for deep convection across most of the tropical northeast Pacific. $$ Mundell