Public Tropical Cyclone Advisory
041 WTPZ34 KNHC 251442 TCPEP4 BULLETIN Tropical Storm Iselle Advisory Number 9 NWS National Hurricane Center Miami FL EP092026 800 AM PDT Tue Aug 25 2026 ...LARGE ISELLE FORECAST TO SLOWLY WEAKEN DURING THE NEXT FEW DAYS... SUMMARY OF 800 AM PDT...1500 UTC...INFORMATION ---------------------------------------------- LOCATION...20.9N 121.1W ABOUT 730 MI...1175 KM W OF THE SOUTHERN TIP OF BAJA CALIFORNIA MAXIMUM SUSTAINED WINDS...70 MPH...110 KM/H PRESENT MOVEMENT...WNW OR 295 DEGREES AT 10 MPH...17 KM/H MINIMUM CENTRAL PRESSURE...988 MB...29.18 INCHES WATCHES AND WARNINGS -------------------- There are no coastal watches or warnings in effect. DISCUSSION AND OUTLOOK ---------------------- At 800 AM PDT (1500 UTC), the center of Tropical Storm Iselle was located near latitude 20.9 North, longitude 121.1 West. Iselle is moving toward the west-northwest near 10 mph (17 km/h), and this general motion is expected for the next couple of days, with a turn towards the west possible on Thursday. Maximum sustained winds remain near 70 mph (110 km/h) with higher gusts. Slow weakening is forecast during the next few days. Tropical-storm-force winds extend outward up to 205 miles (335 km) from the center. The estimated minimum central pressure is 988 mb (29.18 inches). HAZARDS AFFECTING LAND ---------------------- SURF: Swells generated by Iselle are affecting the west coast of the Baja California Peninsula, and will continue for a couple more days. These swells are likely to cause life-threatening surf and rip current conditions. Please consult products from your local weather office. NEXT ADVISORY ------------- Next complete advisory at 200 PM PDT.