Tropical Weather Discussion
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Issued by NWS
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784 AXPZ20 KNHC 230953 TWDEP Tropical Weather Discussion NWS National Hurricane Center Miami FL 1005 UTC Thu Jul 23 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 0600 UTC surface analysis and satellite imagery through 0900 UTC. ...SPECIAL FEATURES... Hurricane Fausto is centered near 17.8N 124.0W at 0900 UTC, moving west-northwest at 10 kt. Estimated minimum central pressure is 982 mb. Maximum sustained wind speed is 70 kt with gusts to 80 kt. Peak seas are near 30 ft. Numerous moderate isolated strong convection is occurring within 120 nm of center. Scattered moderate isolated strong convection is noted elsewhere from 12.5N to 20.5N between 117W and 125W. Fausto has begin to ingest some of the drier air to its west, and the convection is decreasing on the western semicircle, while thunderstorms tops are warning. Fausto has begun to accelerate to the west- northwestward over open waters, and this faster west- northwestward to westward motion expected to continue through the weekend. Fluctuations in strength are expected through the weekend, however a general weakening trend is forecast Swells generated by Fausto are affecting portions of the west coast of the Baja California Peninsula and are reaching the coast of southern California. 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 Fausto NHC Forecast/Advisory and Public Advisory at www.hurricanes.gov for more details. Eastern and Central East Pacific: A tropical wave with axis along 94W continues to move into a large area of disorganized showers and thunderstorms occurring about the monsoon trough across the tropical eastern Pacific, between 90W and 103W. A 1008 mb low pressure center has formed along the monsoon trough near 08N98W, and ahead of the tropical wave. Gradual organization of this system is expected, and a tropical depression is likely to form over the weekend while it moves generally west-northwestward at 10 to 15 mph, remaining well offshore of southwestern Mexico. The latest Tropical Weather Outlook gives this system a medium chance of tropical cyclone formation through 48 hours, and a high chance through 7 days. Please, refer to the latest NHC Tropical Weather Outlook at www.hurricanes.gov ...TROPICAL WAVES... A tropical wave is along 94W N of 04N to 14N, moving westward around 10 kt. Associated convection is described below. Please, see the Special Features section for more information related to this wave. ...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH... The monsoon trough extends from near 09N73W to 09N88W to low pres 08N98W 1008 mb to 08N102.5W to 11N121W, then resumes SW of Fausto from 13N125W to beyond 09N140W. Scattered to locally numerous moderate isolated strong convection is noted N of 02.5N E of 80W, and from 05N to 11N between 80W and 103W. Scattered moderate convection is noted from 04N to 10N between 105W and 121W and from 06.5N to 12N W of 130W. ...OFFSHORE WATERS WITHIN 250 NM OF MEXICO... Please refer to the Special Features section for details on Hurricane Fausto, centered about 850 nm WSW of the southern tip of Baja California. Fausto continues to move westward and away from the Revillagigedo Islands, allowing high pressure to build in across the offshore waters of Baja California and to the Revillagigedos. This pattern is producing leaving gentle NW to N winds and seas of 6 to 7 ft in W swell across those area waters. Associated showers and thunderstorms have exited the area to the W. A ridge continues to build between Hurricane Fausto and the Baja California Peninsula. Overnight satellite scatterometer data indicated fresh to locally strong NW winds north of Punta Eugenia, and moderate to locally fresh NW to N winds between Punta Eugenia and Cabo San Lucas. S to SW swell generating by Fausto is spreading across the area, and mixing with the building northerly wind waves to produce seas 6 to 8 ft across the Baja waters, highest N of Punta Eugenia. Gentle to moderate NW to W winds and moderate seas prevail across the remainder of the Mexican offshore waters, except for fresh N gap winds across the Tehuantepec region and downwind to about 15N. Nocturnal thunderstorms developed along the coast of Sinaloa and are shifting north and northwestward across the southern Gulf. For the forecast, as Hurricane Fausto continues to move westward and away from the offshore waters, high pressure will build across the Baja California offshore waters through Thu night. The pressure gradient between the ridge and a meandering trough over the Gulf of California will support fresh to strong NW winds and building seas N of Punta Eugenia through Thu night into Fri morning. Swells generated by Fausto will persist through Thu before fading. These swells are likely to cause life- threatening surf and rip current conditions. Please consult products from your local weather office. In the Gulf of California, mainly gentle to moderate southerly winds are expected, increasing to fresh speeds Fri night through Sat night. Fresh northerly winds are forecast in the Tehuantepec region during the overnight and early morning hours through the week, with locally rough seas. Please refer to the Special feature section for details on the next tropical cyclone forecast to develop well offshore of Mexico over the upcoming weekend. ...OFFSHORE WATERS WITHIN 250 NM OF CENTRAL AMERICA, COLOMBIA, AND WITHIN 750 NM OF ECUADOR... Overnight satellite scatterometer wind data show fresh to strong E winds continuing across the Papagayo region and extending downwind to near 90W, and northward to northwestern Nicaragua. Seas are 5 to 8 ft with these winds based on altimeter data. This is occurring behind a tropical wave with axis along 94W. The monsoon trough remains active across the offshore waters, producing scattered to locally numerous convection N of 05N to 11N, from Panama and Costa Rica westward. Elsewhere, winds are moderate or weaker with seas 4 to 5 ft in S to SW swell. For the forecast, fresh to strong NE to E winds and moderate to rough seas will persist across the Papagayo region through Thu, then mainly moderate to fresh winds are expected through Sat before increasing to fresh to strong again Sat night and Sun night. Gentle to moderate N winds are forecast in the Gulf of Panama with slight to moderate seas. Moderate or weaker winds and moderate seas in SW swell will prevail elsewhere. Seas, associated with a broad area of developing low pressure currently located along the monsoon trough, may impact the offshore waters of Guatemala and El Salvador Thu through Fri, building seas to 6 to 8 ft. Strong cross-equatorial swell will begin to reach the Galapagos Islands on Fri and build through the weekend, reaching around 8 ft there by Mon morning. ...REMAINDER OF THE AREA... Please refer to the Special Features section for details on Hurricane Fausto, centered about 800 nm WSW of the southern tip of Baja California. Hurricane Fausto dominates conditions over the High Seas forecast waters roughly from 12N to 23N between 119W and 128W. Fresh to strong winds outside of the immediate circulation of Fausto extend northward to 24N, with seas to 8 ft reaching as far N of Fausto as 26N. Elsewhere, a ridge dominates the waters between Baja California and Fausto, and also N of 15N W of 125W. Moderate or weaker winds with moderate seas prevail. SW swell entering the equatorial waters W of 120W and raising seas 7 to 8 ft S of 05N. For the forecast, Hurricane Fausto will move to 18.0N 126.0W this afternoon, 18.3N 128.7W tonight, 18.6N 131.5W Fri afternoon, 18.8N 134.2W Fri night, 19.1N 136.7W Sat afternoon, and 19.5N 139.3W Sat night. Fausto will change little in intensity as it moves W of 140W Sun afternoon. Please refer to the Special feature section for details on the next tropical cyclone forecast to develop well offshore of Mexico over the upcoming weekend. Strong cross- equatorial swell has begun to move into the area waters and slowly build today through Fri, then reach 8 ft and higher Sat through Mon. $$ Stripling