000 AXPZ20 KNHC 282335 CCA TWDEP Tropical Weather Discussion...corrected NWS National Hurricane Center Miami FL 2205 UTC Tue Feb 28 2017 corrected Remainder of the Area section 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 1800 UTC surface analysis and satellite imagery through 2145 UTC. ...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH... The ITCZ/Monsoon Trough is not presently identifiable. ...DISCUSSION... OFFSHORE WATERS WITHIN 250 NM OF MEXICO... The fresh to locally southwest winds earlier over the far northern Gulf of California have diminished to moderate to fresh winds as indicated by the 1654Z Ascat pass. These winds are ahead of a cold front that extends from far northwest Mexico southwest to across Baja California Norte and continues southwest to 25N118W and to 24N123W where it becomes a weakening stationary front to near 20N128W. The cold front will begin to weaken and slow down as it moves over the rest of the Gulf of California through Wednesday morning, and become diffuse during Wednesday afternoon. Wave model guidance suggests that northwest swell producing seas to 8-9 ft will begin to propagate through the waters off Baja California Norte, primarily in the northwest portion of zone PMZ011 beginning late tonight and through Wednesday afternoon before subsiding Wednesday night as swell energy decays. Strong high pressure building north of the area over the Great Basin will support strong northwest winds along the length of the Gulf of California from Wednesday night into early Friday morning, with seas reaching 8 ft in the southern Gulf of California Thursday. The pressure gradient will weaken across the region later this week, with winds and seas diminishing Friday and Saturday. A cold front moving across the Gulf of Mexico will reach the southwest Bay of Campeche by Thursday. Strong high pressure will build southward in the wake of the front, with the associated tight pressure gradient leading strong winds to funnel through the Chivela pass into the Gulf of Tehuantepec. Gale force north winds through the gulf will be possible beginning on Thursday night and through Saturday morning. OFFSHORE WATERS WITHIN 250 NM OF CENTRAL AMERICA, COLOMBIA, AND WITHIN 750 NM OF ECUADOR... Gulf of Papagayo...Winds will pulse over the area the next couple of days. Winds will peak near 25 kt during the late night and early morning hours, and will diminish to 20 kt or less during the early evening hours. These winds are expected to expand northward to near 12N, southward to 10N and westward to near 91W. Seas with these winds will build to around 9 ft per Wave model guidance. Gulf of Panama...Winds will freshen each night before diminishing during the late afternoon hours. Elsewhere, light to gentle breezes will persist through Thursday. REMAINDER OF THE AREA...corrected A cold front extends from Baja California Norte to near 24N123W. A broad area of mainly northwest swell, with seas in the 7-9 ft range is present throughout much of the northern and central forecast waters. High pressure builds is building north of the region. The associated pressure gradient between it and lower pressure in the tropics is forecast to increase the trade winds from 21N to 23N between 126W and 135W beginning early Wednesday afternoon, with winds there reaching the strong range and combined seas building up to 10 ft. By Thursday afternoon, these winds are expected to be confined over an area from 20N to 24N west of 132W. The combination of northeast wind waves with persistent long-period northwest swell will support combined seas of 8 to 10 ft over much of the region north of about 04N and west of 118W Wednesday and Thursday. The northwest swell will begin to mix with a north component on Wednesday over the western section of the area. Winds will diminish slightly across the region by Friday, allowing seas to subside from east to west below 8 ft through Saturday. $$ AGUIRRE