--------------------------------------------------------------------------- TROPICAL WEATHER DISCUSSION (EASTERN PACIFIC AREA) MESSAGES T1T2: AX A1A2: PZ Date: 2026-07-28 --------------------------------------------------------------------------- Message File: T_AXPZ20KNHC280317_C_KWBC_20260728031847_47448518-9440-TWDEP.txt ****0000006291**** AXPZ20 KNHC 280317 TWDEP Tropical Weather Discussion NWS National Hurricane Center Miami FL 0405 UTC Tue Jul 28 2026 Tropical Weather Discussion for the eastern Pacific Ocean from 03.4S to 30N, east of 120W including the Gulf of California, and from the Equator to 30N, between 120W and 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 0230 UTC. ...SPECIAL FEATURES... Hurricane Genevieve is centered near 17.1N 114.7W at 28/0300 UTC, moving northwest at 10 kt. Estimated minimum central pressure is 939 mb. Maximum sustained wind speed is 125 kt with gusts to 150 kt. Peak seas are near 43 ft or 13 m. Numerous strong convection is noted within 90 nm of the center, and numerous moderate convection is within 180 nm of the center. A west- northwestward to northwestward motion with some decrease in forward speed is expected during the next couple of days. Genevieve is a category 4 hurricane on the Saffir-Simpson Hurricane Wind Scale. Weakening is forecast this week. Swells generated by Genevieve area affecting the west coast of the Baja California Peninsula and portions of the southwestern coast of Mexico. These swells are likely to cause life-threatening surf and rip current conditions. Please consult products from your local weather office. Please read the latest HIGH SEAS FORECAST issued by the National Hurricane Center at website - https://www.nhc.noaa.gov/text/MIAHSFEP2.shtml and the latest Genevieve NHC Forecast/Advisory and Public Advisory at www.hurricanes.gov for more details. ...TROPICAL WAVES... A tropical wave is along 101W, south of 15N just off the coast of Guerrero, moving westward at around 15 kt. Scattered moderate convection is observed from 04N to 15N between 99W and 103W. ...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH... The monsoon trough extends from 1010 mb low pressure near the Panama-Colombia border around 09N77W to 08N87W to 07N98W to 11N108W. The ITCZ extends from 07N128W to beyond 05N140W. Other than the convection mentioned with Genevieve and the tropical wave above, numerous moderate convection is noted from 01N to 09N between 77W and 92W, from 00N to 08N between 128W and 140W, and within 180 nm of the coast of Mexico between 103W and 108W. ...OFFSHORE WATERS WITHIN 250 NM OF MEXICO... Please refer to the Special Features section for information on Major Hurricane Genevieve. Please refer to the Tropical Waves and Monsoon Trough/ITCZ sections above for information about additional convection in the region. Away form the impacts of Genevieve, moderate to locally fresh NW winds associated with high pressure building in from the northwest are impacting waters N and W of Guadalupe Island. Outflow from convection over Sonora is bringing fresh SE winds to the northern Gulf of California. Elsewhere, moderate or weaker winds prevail. Seas are slight in the Gulf of California, and moderate in the remaining offshore waters. For the forecast, Hurricane Genevieve is near 17.1N 114.7W at 8 PM PDT, and is moving northwest at 10 kt. Maximum sustained winds are 125 kt with gusts to 150 kt, and the minimum central pressure is 939 mb. Genevieve will move to 17.8N 115.9W Tue morning, 18.4N 117.4W Tue evening, 18.9N 119.0W Wed morning, 19.5N 120.9W Wed evening, and 20.2N 123.0W Thu morning. Genevieve will weaken to a tropical storm near 21.1N 125.5W Thu evening. Large seas associated with Genevieve will finally pull away from the offshore waters of Baja California Fri. Elsewhere, areas of fresh mainly westerly gap winds are likely tonight through Wed night nearshore Baja California and also in the Gulf of California as high pressure builds southward to the west of the Baja California Peninsula, with locally fresh to strong SE winds in the northern Gulf late tonight, due to outflow from convection over mainland Mexico. ...OFFSHORE WATERS WITHIN 250 NM OF CENTRAL AMERICA, COLOMBIA, AND WITHIN 750 NM OF ECUADOR... Please refer to the Monsoon Trough/ITCZ section above for information about convection in the region. High pressure northeast of the area is forcing fresh easterly gap winds and seas of 5 to 7 ft across the Gulf of Papagayo region. Elsewhere, moderate or weaker winds and moderate seas are prevalent. For the forecast, fresh to locally strong NE to E gap winds will pulse across the Papagayo region through the period. Pulsing moderate to locally fresh N winds are expected in the Gulf of Panama at times through midweek. Locally rough seas in SW swell southwest of the Galapagos Islands will subside tonight. Moderate or weaker winds and moderate seas in southwest swell are expected across the remainder of the waters through the period. ...REMAINDER OF THE AREA... Please refer to the Special Features section for information on Major Hurricane Genevieve. Recently-downgraded Tropical Storm Fausto continues to move westward away from the tropical eastern Pacific, and no further impacts are expected for area waters. For waters not being impacted by Hurricane Genevieve, 1026 mb high pressure centered near 33N136W dominates. This is causing moderate to fresh N to E winds N of 15N and W of 120W, along with moderate seas. To the south, winds are moderate or weaker, mainly southeasterly, with moderate seas. South of the Equator, rough seas in southerly swell are present W of the Galapagos Islands. For the forecast, Hurricane Genevieve is near 17.1N 114.7W at 8 PM PDT, and is moving northwest at 10 kt. Maximum sustained winds are 125 kt with gusts to 150 kt, and the minimum central pressure is 939 mb. Genevieve will move to 17.8N 115.9W Tue morning, 18.4N 117.4W Tue evening, 18.9N 119.0W Wed morning, 19.5N 120.9W Wed evening, and 20.2N 123.0W Thu morning. Away from Genevieve, little change in marine conditions is forecast across the remainder of the waters through the end of the week and into next weekend. $$ Konarik ########################### END OF MESSAGE SET ############################