000 AXPZ20 KNHC 270405 TWDEP Tropical Weather Discussion NWS National Hurricane Center Miami FL 0405 UTC Tue Oct 27 2020 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 0330 UTC. ...SPECIAL FEATURES... A strong cold front moving across the Gulf of California is supporting near gale to gale force winds north of 29N. As the front continues to move southward tonight, strong to near gale force winds will funnel southward along the northern and central Gulf through Tue. Fresh to strong winds will reach the southern gulf and the entrance of the gulf through early Wed. Seas are expected to become very rough over the northern Gulf of California through Tue, with wave heights reaching 11 ft before subsiding to around 9 ft early on Tue. Please read the latest HIGH SEAS FORECAST issued by the National Hurricane Center at website- https://www.nhc.noaa.gov/text/MIAHSFEP2.shtml for more details. ...TROPICAL WAVES... A tropical wave extends from 05N to 15N with axis near 129W, moving westward at 5-10 kt. There is no significant convection associated with this feature at this time. ...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH... The monsoon trough axis extends from 10N86W to 10N110W to 11N126W. The ITCZ begins near 10N131W and continues beyond 09N140W. Scattered moderate convection is within 120 nm either side of the both the monsoon and the ITCZ. OFFSHORE WATERS WITHIN 250 NM OF MEXICO... Please see the Special Features section above for details on a gale event in the northern Gulf of California. Mainly moderate to locally fresh northwest winds are across the offshore waters of Baja California with seas to 6 ft. These winds are forecast to continue through Wed morning associated with a gap wind event in the Gulf of California. Strong winds are forecast to funnel to the waters N of Punta Eugenia tonight and Tue. Seas are expected be in the 6-7 ft range during this period. Gentle to moderate winds are forecast to dominate the offshore waters W of Baja Wed evening through early Fri and become light to gentle the remainder of the period. Light and gentle winds will prevail in the Gulf of Tehuantepec through Thu. The next gap wind event in Tehuantepec is forecast to begin Thu evening. Model guidance suggest a rapid wind increase to near gale force afterwards and gale force winds by Fri afternoon. The forecast calls for the continuation of near gale to gale force winds the remainder weekend with seas building to 16 ft. Winds will remain light to gentle over the SW Mexico offshore waters, except for the offshore waters between Puerto Vallarta and Manzanillo where moderate to fresh northwest winds are expected Tue through Thu evening associated with the gap wind event in the Gulf of California. OFFSHORE WATERS WITHIN 250 NM OF CENTRAL AMERICA, COLOMBIA, and WITHIN 750 NM OF ECUADOR... Moderate to locally fresh south to southwest winds will prevail mainly between the monsoon trough and N of the Galapagos Islands through the forecast period. Seas are expected to remain in the 5-6 ft range, increasing to 7 ft late in the week due to the next Tehuantepec gap wind event. REMAINDER OF THE AREA... Strong high pressure in the NE Pacific region extends a broad ridge southward into the northern forecast waters. The pressure gradient between the ridge and lower pressure associated with the monsoon and the ITCZ will support the continuation of moderate to locally fresh NE winds over a belt approximately from 10N t0 20N west of 115W. A tropical wave along 129W is expected to move west of the forecast area on Tue. $$ Ramos