000 AXPZ20 KNHC 121604 TWDEP Tropical Weather Discussion NWS National Hurricane Center Miami FL 1517 UTC Sun Apr 12 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 1200 UTC surface analysis and satellite imagery through 1500 UTC. ...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH... A surface trough extends from 07N78W to 05N97W to 01N121W. The ITCZ extends from 01N122W TO 0N130W TO 0N140W. Scattered moderate to strong convection is noted from 0N TO 09N east of 100W. Scattered moderate convection is from 02S to 09N between 100W and 121W. OFFSHORE WATERS WITHIN 250 NM OF MEXICO... Surface ridging west of Baja California and a generally weak pressure gradient across the region continue to support moderate to fresh N to NW winds across the offshore waters of the Baja peninsula southward to the Revillagigedo Islands and Cabo Corrientes. Latest surface and model data indicate sea heights in the range of 3-6 ft. Light to gentle winds, and seas of 3-7 ft prevail over the remainder of the open waters off SW and southern Mexico. In the Gulf of California, gentle to moderate winds dominate the central and southern portions of the gulf with seas to 4 ft. A surface trough will move will move across the northern Gulf of California tonight supporting fresh to locally strong winds with seas to 7 ft. Otherwise, high pressure will prevail west of the region through the middle of next week supporting similar conditions. The pressure gradient will further weaken afterwards and will support mainly gentle to moderate winds west of Baja California, and light to gentle winds elsewhere. OFFSHORE WATERS WITHIN 250 NM OF CENTRAL AMERICA, COLOMBIA, AND WITHIN 750 NM OF ECUADOR... Gentle to moderate gap winds prevail across the Gulf of Papagayo and the Gulf of Panama. Light to gentle winds prevail elsewhere. Seas are generally in the 4-5 ft range. Moist S to SW flow will gradually increase over the forecast area through the middle of next week, and large scale atmospheric conditions will be favorable for enhanced widespread convection. Conditions will be favorable for locally heavy rainfall to persist over the waters near the equatorial 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. Fresh to strong winds are expected to pulse at night in the Gulf of Papagayo beginning Mon night and continuing through Fri morning. Otherwise, marine winds and seas will remain mostly tranquil across the offshore waters through the middle of the week. Long period cross-equatorial S-SW swell will move into the regional waters by the middle to the week. REMAINDER OF THE AREA... The pressure gradient between high pressure over northern waters and lower pressure within the equatorial trough is supporting moderate to fresh northeast trades, and 7-9 ft seas, from 05N to 21N west of 120W, and moderate to fresh N to NE winds from 05N to 20N between 110W and 120W, where seas are 6-7 ft. Winds across the trade wind belt will diminish slightly today as high pressure over the northern waters weakens slightly. Widespread active convection occurring along and north of the equatorial trough will continue through the beginning of the upcoming week, as large scale conditions are favorable for deep convection across much of the tropical northeast Pacific E of 120W. $$ Ramos