000 AXPZ20 KNHC 291005 TWDEP Tropical Weather Discussion NWS National Hurricane Center Miami FL 1005 UTC Fri Mar 29 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 0600 UTC surface analysis and satellite imagery through 0915 UTC. ...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH... A surface trough passes through the coast of Colombia near 04N77W, to 06N90W. The ITCZ continues from 06N90W to 03N105W beyond 04N140W. Scattered moderate to isolated strong rainshowers are within 30 nm either side LINE FROM 08N83W TO 07N85W TO 05N86W...within 30 nm S of ITCZ between 96W and 99W...within 90 nm N OF ITCZ between 98W and 110W...and within 120 nm S of ITCZ between 126W and 135W. A second ITCZ is along 03.4S between 90W and 93W...and FROM 03.4S117W TO 02S122W TO 03N129W. Scattered moderate isolated strong rainshowers are S OF 02S between 110W and 123W. Rainshowers are possible from 15N to 30N from 126W westward, in broken to overcast multilayered clouds. ...DISCUSSION... OFFSHORE WATERS WITHIN 250 NM OF MEXICO... Gulf of Tehuantepec: Strong winds across the Gulf of Tehuantepec will diminish to moderate by Friday morning. The next gap wind event is forecast to begin on Sunday night/Monday morning. Strong breezes to near gale-force wind conditions, at a minimum, are forecast on Sunday night/Monday morning, and again from Monday night to all of Tuesday. Gale-force wind conditions are forecast starting on Tuesday night, and ending on Wednesday morning. Gulf of California: N of 29N, light and variable winds and S of 29N, gentle NW winds, will start the forecast cycle of this morning. Friday morning: moderate NW winds will start in the morning, and moderate-to-fresh during the weekend, until Monday morning. The wind speeds will slow down from Monday morning to Monday afternoon, to moderate-to-fresh NW winds. Light and variable winds will continue until Tuesday morning. The surface pressure gradient will tighten between the subtropical high and lower surface pressure in northern Mexico overnight, allowing NW winds to increase in speed, and continue until Saturday. The wave heights will build to 10 feet to 11 feet from Friday until early Sunday afternoon. The wind speeds will slow down, and the sea heights will diminish, after Sunday afternoon. OFFSHORE WATERS WITHIN 250 NM OF CENTRAL AMERICA, COLOMBIA, AND WITHIN 750 NM OF ECUADOR... Gulf of Papagayo: Fresh to strong winds will continue to pulse in the Gulf of Papagayo from now until this afternoon, and then again from Friday night until Saturday afternoon, and again from Tuesday night until Thursday night. Gulf of Panama: SW swell, ranging from 8 feet to 9 feet, remains in the area right now. A brief period of NE moderate to fresh winds will occur on Friday night. Expect SW swell of 8 feet to 10 feet for this Friday morning, to subside to 8 feet to 9 feet this afternoon, and staying in the 8 feet to 9 feet range until Saturday afternoon. SW swell of 8 feet will remain until Sunday afternoon. Sea heights less than 8 feet will follow after Sunday afternoon. REMAINDER OF THE AREA... A cold front, that currently is to the west of the area, will not reach the NW corner of the forecast area. The front will introduce more long-period NW swell into the forecast area, that will sweep across the region during the next few days. The surface pressure gradient, between high pressure near 30N and lower pressure in the tropics, is producing an area of fresh to strong trade winds from 123W westward of 125W, and sea heights ranging from 9 feet to 11 feet. The overall combination of longer period northwest and southwest swell is maintaining an area of 8-11 ft seas south of 25N west of 110W, and south of 08N between 94W and 110W. The wind speeds will slow down to moderate- to-fresh after Saturday afternoon. The sea heights will be diminishing, gradually, with time, through Thursday of the next week. $$ Mt