Severe storms to disrupt Labor Day plans across Northern US
A slow-moving weather system combined with warm, unstable air is triggering severe thunderstorms across the Northern US, particularly in Montana, the Dakotas, and the Upper Mississippi Valley. According to the FOX Forecast Center, storms are producing intense rainfall rates of 2 to 3 inches per hour, with strong winds aloft helping to sustain their intensity. Flash flood risks are heightened, especially in northwestern Iowa, where the Weather Prediction Center has issued a Level 3 out of 4 threat. Heavy rain and severe storms are expected to persist through Labor Day, with clusters of storms potentially forming in Minnesota and Wisconsin. The system is driven by a strengthening low-pressure area pulling abundant moisture into the region. Source time: Sun, 06 Sep 2026 15:50:04 GMT.