000 AXPZ20 KNHC 161003 TWDEP Tropical Weather Discussion NWS National Hurricane Center Miami FL 1005 UTC Tue Jul 16 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 0830 UTC. ...TROPICAL WAVES... A tropical wave with axis along 91W from 04N to 15N is moving west at 10 to 15 kt. A broad cyclonic circulation is associated with this wave that is generating scattered moderate convection from 10N to 17N between 89W and 95W. Environmental conditions are forecast to become conducive for gradual development later this week, and a tropical depression could form by the weekend. A tropical wave with axis along 102W from 03N to 15N continues to weaken and is expected to dissipate later today. Scattered moderate convection is from 06N to 10N between 99W and 105W. A tropical wave with axis near 111W from 02N to 16N is moving west at 10 to 15 kt. Scattered moderate isolated strong convection is from 07N to 14N between 105W and 117W. A tropical wave with axis along 131W from 03N to 15N is moving west at 10 to 15 kt. Scattered moderate convection is from 06N to 13N between 124W and 131W. ...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH... The monsoon trough axis extends from 09N85W to 07N93W to 12N110W to 12N120W. The ITCZ extends from 12N120W to 09N129W, then resumes from 09N132W to 08N140W. For information about convection, see the tropical waves section. OFFSHORE WATERS WITHIN 250 NM OF MEXICO... Light to gentle winds prevail across the offshore waters of Baja California and SW Mexico due to a weak pressure gradient in the region. A broad area of low pressure over the Gulf of California will deepen today, thus resulting in moderate to fresh NW winds N of Punta Eugenia through Wed morning. Moderate to fresh winds will resume Fri into Sat, extending all the way to Cabo San Lucas. Seas will be in the range of 5 to 7 ft during the entire period. The deepening of the low will also result in fresh to strong SE winds along the Gulf of California starting this afternoon and continuing through Thu morning. Fresh to strong winds will enter the Tehuantepec offshore waters from the east this evening with seas to 8 ft. Winds in the Gulf of Tehuantepec will also pulse to strong Wed to Fri as a couple of tropical waves moves across the area. OFFSHORE WATERS WITHIN 250 NM OF CENTRAL AMERICA, COLOMBIA, AND WITHIN 750 NM OF ECUADOR... Moderate to fresh NE to E winds prevail N of the monsoon trough over the Nicaragua, El Salvador and Guatemala offshore waters as a tropical wave moves across the region. Moderate to fresh south to southwest winds are occurring south of the monsoon trough, off Panama, Colombia and Ecuador. Fresh to strong winds will pulse off the Gulf of Papagayo during the evenings through the weekend, building seas to 8 ft. Long- period cross-equatorial southwest swell will support seas of 5 to 7 feet across the remainder waters through Sat. REMAINDER OF THE AREA... A high pressure centered north of the forecast area near 31N140W, with a pressure of 1025 mb, extends a ridge axis southeastward to 22N125W. Moderate to fresh northeasterly trades are occurring southwest of the axis and north of the ITCZ. Long-period southwest swell continues across the waters south of 15N between 100W and 120W, supporting seas to 9 ft according to latest altimeter passes. The swell will gradually decay through Thu and the seas will subside. $$ Ramos