Overview

• The National Weather Service issued flood watches for parts of Southern and Central California, including mountain and desert areas such as the Coachella Valley, as remnant moisture from Tropical Storm Mario fuels storms through Thursday night into Friday.
• Wildfire burn scars, including the Palisades and Eaton areas, face a heightened risk of debris flows and localized flash flooding if repeated downpours track over the same locations.
• The Weather Prediction Center reported a slow-moving band from eastern South Dakota into far western Minnesota producing 1.5–2 inch-per-hour rain rates with isolated 3–5 inch totals and possible flash flooding through around midnight CDT.
• The Storm Prediction Center noted ongoing and potential watches across the High Plains, with hazards including large hail, damaging winds, and a brief tornado risk from southeast Colorado and northeast New Mexico to western Nebraska and far northwestern Kansas.
• Local offices issued short-fuse advisories and First Alert days from San Diego and the Inland Deserts to Imperial County and Yuma, with scattered thunderstorms and localized flooding possible into early Friday before a gradual decrease in activity.