000 AXPZ20 KNHC 100328 TWDEP Tropical Weather Discussion NWS National Hurricane Center Miami FL 0315 UTC Tue Jul 10 2018 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 0300 UTC. ...TROPICAL WAVES... .A tropical wave is analyzed from 09N89W to 14N90W to the Yucatan Peninsula moving W at 15 to 20 kt. Convection associated with this wave is confined over land areas N of 14N. .A tropical wave is analyzed from 06N112W to 18N110W moving W at 10 to 15 kt. Scattered moderate and isolated strong convection are observed S of 14N within 90 nm of the wave axis. .A tropical wave is analyzed from 06N123W to 19N121W moving W at 15 to 20 kt. Scattered moderate and isolated strong convection are observed from 05N to 15N between 117W and 124W. ...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH... The monsoon trough extends from 09N83W to 08N96W. The ITCZ begins near 08N96W and extends to 09N111W, then resumes from 09N112W to 09N122W, then resumes again from 09N123W to beyond 08N140W. Aside from convection associated with the tropical waves, scattered moderate and isolated strong convection are from 05N to 11N between 100W and 106W and from 04N to 09N E of 100W. ...DISCUSSION... OFFSHORE WATERS WITHIN 250 NM OF MEXICO... Gulf of Tehuantepec: High pressure north of the region along with nocturnal drainage flow will support near gale force northerly winds with seas up to 10 ft tonight and Tue night, decreasing to strong each night through the remainder of the week. Fresh to strong winds will linger into the daytime hours each day. Surface troughing west of Baja California is supporting a weak pressure pattern N of 15N W of 96W across the offshore waters promoting mainly gentle winds. The trough W of Baja California is expected to meander over the region the next few days, which will help maintain the weak flow over the region. Gulf of California: Gentle to occasionally moderate southerly flow expected for the next 48 hours. OFFSHORE WATERS WITHIN 250 NM OF CENTRAL AMERICA, COLOMBIA, AND WITHIN 750 NM OF ECUADOR... Gulf of Papagayo: Strong nocturnal offshore winds, with seas to 8 ft, will occur across and within 150 nm downstream of the Gulf of Papagayo through sunrise on Tue, resuming Thu night. Gentle to occasionally moderate easterly winds are forecast elsewhere north of the monsoon trough which is meandering between 06N and 09N. Moderate southerly winds are forecast south of the monsoon trough this week with 5 to 7 ft seas primarily due to cross-equatorial southerly swell. REMAINDER OF THE AREA... A surface trough that extends from 20N122W to 28N121W will meander over the region next few days. Fresh northerly winds, and 7 ft seas currently observed N of 25N within 270 nm W of the trough, will continue across those waters through midweek. Seas of mainly 5 to 6 ft prevail elsewhere N of the ITCZ and W of 110W. Cross equatorial swell of 7 to 8 ft will spread north of the equator by Tue afternoon, spreading as far as 08N between 100W and 120W by Wed evening. $$ Latto