ZCZC MIATCPEP4 ALL TTAA00 KNHC DDHHMM BULLETIN Tropical Storm Iselle Advisory Number 10 NWS National Hurricane Center Miami FL EP142020 200 PM PDT Fri Aug 28 2020 ...ISELLE PRODUCING TROPICAL-STORM-FORCE WINDS OVER CLARION ISLAND... SUMMARY OF 200 PM PDT...2100 UTC...INFORMATION ---------------------------------------------- LOCATION...18.8N 115.2W ABOUT 445 MI...715 KM SW OF THE SOUTHERN TIP OF BAJA CALIFORNIA MAXIMUM SUSTAINED WINDS...50 MPH...85 KM/H PRESENT MOVEMENT...NNE OR 20 DEGREES AT 7 MPH...11 KM/H MINIMUM CENTRAL PRESSURE...999 MB...29.50 INCHES WATCHES AND WARNINGS -------------------- There are no coastal watches or warnings in effect. DISCUSSION AND OUTLOOK ---------------------- At 200 PM PDT (2100 UTC), the center of Tropical Storm Iselle was located near latitude 18.8 North, longitude 115.2 West. Iselle is moving toward the north-northeast near 7 mph (11 km/h) and this general motion is expected to continue through tonight. A northward turn is expected by Saturday morning followed by a north-northwestward motion on Sunday morning. Afterward, Post-Tropical/Remnant Low Iselle is forecast to turn northwestward in the low-level flow. Maximum sustained winds have decreased to near 50 mph (85 km/h) with higher gusts. Further weakening is forecast and Iselle should become a tropical depression Saturday night, degenerate to a remnant low on Sunday and dissipate early next week. An observing site at Clarion Island, MX recently reported a sustained wind of 40 mph (65 km/hr) and a gust of 48 mph (80 km/hr). Tropical-storm-force winds extend outward up to 70 miles (110 km) from the center. The estimated minimum central pressure is 999 mb (29.50 inches). HAZARDS AFFECTING LAND ---------------------- SURF: Swells generated by Iselle and a large area of southwesterly winds to its south are affecting portions of the southwestern coast of Mexico. These swells are expected to spread northward along the coast of west-central Mexico and the southern Baja California peninsula through Sunday, and will likely cause life-threatening surf and rip current conditions. Please consult products from your local weather office. NEXT ADVISORY ------------- Next complete advisory at 800 PM PDT. $$ Forecaster Roberts NNNN