000 AXPZ20 KNHC 210230 TWDEP Tropical Weather Discussion NWS National Hurricane Center Miami FL 048 UTC Sun Apr 21 2019 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 0140 UTC. ...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH... A trough extends from 07N84W to 06.5N93W to 07N98W. The ITCZ continues from 07N98W TO 06N102W TO 08.5N111W to beyond 04.5N140W. Scattered moderate and isolated strong convection is noted within 60 nm either side of a line from 04N80W to 08N87W, within 60 nm either side of a line from 05N108W to 12N112W and from 05N to 10N between 118W and 126W. ...DISCUSSION... OFFSHORE WATERS WITHIN 250 NM OF MEXICO... A broad ridge continues to reside over the offshore forecast waters of Baja California, while a surface trough still runs along the length of the Baja California peninsula this evening. The pressure gradient between the high and troughing over Baja supports moderate to locally fresh NW winds N of Punta Eugenia and gentle to moderate winds between Cabo San Lucas and Punta Eugenia. Seas are currently running between 5 and 7 ft. Moderate to fresh NW winds will continue to affect the waters N of Punta Eugenia, with seas building to around 8 ft in NW swell in the far northern waters Sun through Mon night. Elsewhere, mainly gentle to moderate NW to N winds and seas of 5 to 7 ft are expected through Wed night. Gulf of California: Winds will briefly increase across the northern part of the Gulf this evening. At that time, expect SW to W winds of 20 to 25 kt and seas building to as high as 5 ft between 29.5N and 30.5N. Otherwise, light to gentle winds can be expected through Wed. Gulf of Tehuantepec: Winds diminished to near gale force earlier this afternoon, and the area covered by strong winds or greater continues to decrease. Seas generated by these winds have produced an area of 8 ft or greater wave heights that extends SW from the Gulf to near 08N101W. Winds are forecast to further diminish to 20 to 25 kt by Sun morning, and then become variable at 15 kt or less Sun night through Mon night. Light to gentle onshore winds are expected Tue through Thu. OFFSHORE WATERS WITHIN 250 NM OF CENTRAL AMERICA, COLOMBIA, AND WITHIN 750 NM OF ECUADOR... Gulf of Papagayo: Fresh to strong NE to E winds are forecast across the Gulf of Papagayo and downwind to near 90W tonight through Mon night, with seas building to 7-8 ft. Winds will be strongest during the overnight and early morning hours with the assistance of the nocturnal drainage flow. Moderate to fresh winds are expected the remainder of the forecast period with seas below 8 ft. Gulf of Panama: Moderate to fresh northerly winds will briefly affect the Gulf of Panama Sun night through Mon night, then mainly gentle to moderate northerly winds will generally prevail across this area, with seas in the 3 to 5 ft range in long period SW swell. Light to gentle winds will dominate the remainder of the offshore forecast waters, with seas of 4 to 5 ft. REMAINDER OF THE AREA... A ridge extends SE across the forecast waters from 1030 mb high pressure centered close to 34N139W to near the Revillagigedo Islands. The pressure gradient between the ridge and lower pressure in the vicinity of the ITCZ is supporting an area of fresh to strong trade winds covering the waters from the ITCZ northward to about 20N and W of 130W. The high will remain near its current location but weaken Tue through Thu in response to low pressure approaching from the west. This will allow the area of fresh to strong winds and seas of 8 ft or higher to retreat to the W of 140W by Tue night. $$ CAM