000 AXPZ20 KNHC 311536 TWDEP Tropical Weather Discussion NWS National Hurricane Center Miami FL 1348 UTC Fri Mar 31 2017 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... The ITCZ extends from 04N127W to 02N133W to 02N138W to beyond 03N140W. Scattered moderate and isolated strong convection is noted from 05N to 08N between 125W and 140W. ...DISCUSSION... OFFSHORE WATERS WITHIN 250 NM OF MEXICO... High pressure of 1031 mb centered north of the area near 36N135W ridges southeast to the Revillagigedo Islands. A cold front is heading SE along the Baja Peninsula and Gulf of California in the vicinity of 29N. The most recent satellite-derived wind data indicate moderate to fresh NW winds W of Baja California Norte and gentle to moderate NW winds west of Baja California Sur. Fresh to strong winds are evident well to the north of the cold front over the northern Gulf to the north of 30.5N. The cold front will rapidly weaken and winds will subside to 20 kt or less by this evening. Gentle to moderate winds continue over the southern Gulf of California. Light to gentle winds and seas in the 4-7 ft range are noted elsewhere across the forecast waters. Gale force winds north of the area off the coast of southern California are generating large NW swell. Seas are currently peaking near 14 ft over the waters W of Baja California Norte near 30N119W. The swell will subside and seas will decrease to around 8 ft over this area on Sunday. Another round of NW swell will cause seas to rebuild to between 10 and 12 ft over this area on Monday. Seas off Baja California Sur will remain between 7 and 9 ft through the middle of next week. Winds will diminish today over the Gulf of California as the cold front weakens. Light to gentle winds will prevail elsewhere through the forecast period. Yet another cold front stalling near 30N140W will usher in more NW swell next Friday. This event appears to be more subdued with seas W of Baja California Norte building to between 8 and 9 ft. OFFSHORE WATERS WITHIN 250 NM OF CENTRAL AMERICA, COLOMBIA, AND WITHIN 750 NM OF ECUADOR... Light to gentle winds and seas in the 3-5 ft range will prevail over the forecast waters through the middle of next week. REMAINDER OF THE AREA... High pressure continues to reside over the northern waters. The pressure gradient between the area of high pressure and the ITCZ is generating fresh to locally strong trade winds north of 05N and west of 122W. Seas within this area range between 8 and 11 ft as long period northwest swell mix with shorter period northeast wind waves. The areal coverage of the strong trades will gradually diminish during the next couple of days as high pressure weakens slightly and the pressure gradient relaxes. Another round of large NW swell will reach the NW part of the forecast area Saturday night and the NE portion of the forecast area on Monday. Seas associated with this swell event will peak near 13 ft over the northern waters Sunday before subsiding. A front stalling near 30N140W will introduce more NW swell on Wednesday night. Seas near 30N140W will peak near 13 ft at this time. However, this event appears to be more subdued as swell rapidly decay as they propagate SE. Seas W of Baja California Norte will only build to between 8 and 9 ft on Friday. $$ cam