FloodZoneMap.org

Two rounds of thunderstorms impacted Southeastern Michigan on August 11: the first during the afternoon and the second during the late evening into the following morning. The first round produced widespread severe wind gusts across the area between 3 and 5pm as a well-organized line swept eastward across the state. This line knocked out power for hundreds of thousands of customers as widespread tree and power line damage occurred. A wind gust of 75 mph was measured in Mt. Clemens. A lull in acti