Tropical Weather Discussion
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Issued by NWS
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287 AXPZ20 KNHC 231555 TWDEP Tropical Weather Discussion NWS National Hurricane Center Miami FL 1605 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 1200 UTC surface analysis and satellite imagery through 1500 UTC. ...SPECIAL FEATURES... Hurricane Fausto is centered near 17.9N 125.3W at 23/1500 UTC, moving west at 11 kt. Estimated minimum central pressure is 982 mb. Maximum sustained wind speed is 70 kt with gusts to 85 kt. 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 90 nm of center. Fausto is moving toward the west, and this general motion is expected to continue over the next few days. Some small intensity fluctuations are possible today, and a slow weakening trend is forecast over the weekend. Swells generated by Fausto are affecting portions of the west coast of the Baja California Peninsula and 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 (EP98): A tropical wave is along 95.5W. A 1007 mb low is analyzed near 08N95.5W. This system is producing a large area of showers and thunderstorms. Environmental conditions appear conducive for gradual development of this system, and a tropical depression is likely to form late this week or over the weekend, while it moves generally west-northwestward at 10 to 15 mph, remaining well offshore of 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 95.5W. A 1007 mb low is analyzed near 08N95.5W. Scattered moderate to isolated strong convection is noted from 06N to 12N between 90W and 101W. Please, see the Special Features section for more information related to this wave. ...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH... The monsoon trough extends from 07N78W to 1007 mb low pressure located near 08N95.5W to 06N110W to 10N120W, then resumes SW of Fausto from 11N134W to beyond 10N140W. Scattered moderate to strong convection is N of 04N E of 81W to the coast of Colombia, including the Gulf of Panama. Scattered moderate to isolated strong convection is noted from 06N to 12N between 90W and 101W. Scattered moderate convection is from 03N to 07N between 116W and 122W. ...OFFSHORE WATERS WITHIN 250 NM OF MEXICO... Please refer to the Special Features section for details on Hurricane Fausto, centered about 915 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 Revillagigedo Islands. This pattern is producing gentle NW to N winds and seas of 6 to 7 ft in W swell across those area waters. A ridge continues to build between Hurricane Fausto and the Baja California Peninsula. Latest 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. 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 tonight. 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 today 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... Latest satellite scatterometer wind data show fresh to strong N to E winds continuing across the Papagayo region and extending downwind to near 91W, 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 95.5W. The monsoon trough remains active across the offshore waters. 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 today, 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 near 08N95.5W, may impact the offshore waters of Guatemala and El Salvador later today 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 915 nm WSW of the southern tip of Baja California. Hurricane Fausto dominates conditions over the High Seas forecast waters roughly from 12N to 25N between 118W and 132W. Fresh to strong winds outside of the immediate circulation of Fausto extend northward to 25N, with seas to 8 ft reaching as far N of Fausto as 27N. Elsewhere, a ridge dominates the waters between Baja California and Fausto, and also N of 15N W of 130W. Moderate or weaker winds with moderate seas prevail. SW swell are entering the equatorial waters W of 120W with raising seas 7 to 8 ft S of 05N. For the forecast, Fausto will move to 18.1N 127.4W this evening, 18.5N 130.1W Fri morning, 18.8N 132.9W Fri evening, weaken to a tropical storm near 19.1N 135.5W Sat morning, 19.3N 137.9W Sat evening, and 19.4N 140.2W Sun morning. Fausto will change little in intensity as it moves to near 20.1N 145.7W. 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. $$ GR