Boise, Idaho – Monsoon-driven storms will threaten parts of Idaho and eastern Oregon with heavy rain and flash flooding through midweek, raising concerns near recent wildfire burn scars.
According to the National Weather Service in Boise, the highest chance for locally heavy rainfall comes Tuesday and Wednesday, with the heaviest activity expected in southeast Oregon, the Idaho-Nevada border region, and the mountains of southwest Idaho. While showers taper off after Thursday, the short-term flooding risk remains elevated.
Officials warn that areas scarred by recent wildfires are especially vulnerable. The Wapiti Fire burn scar near Grandjean, Idaho, the Durkee Fire scar near Ironside, Oregon, and the Lava Fire scar near Cascade, Idaho could see rapid runoff and flash flooding if downpours develop. Even brief but intense thunderstorms may send debris flows downslope and into creeks and roadways.
Drivers are urged to avoid flooded routes, particularly mountain roads near Cascade and Stanley, and residents in burn scar zones should remain alert for sudden water rises. Emergency managers recommend keeping mobile devices charged and monitoring weather alerts closely through midweek.
Drier conditions are expected to return late Thursday, but additional advisories could be issued if storms linger longer than anticipated.
