Thunderstorm Wind in Marshall County, Illinois

Numerous large tree branches were blown down.

On the evening of July 15, 2024, a derecho brought very strong winds, several tornadoes, and heavy rainfall to a good portion of the Midwest. Thunderstorms initiated over central Iowa during the late afternoon hours then quickly spread east-southeast through southern Wisconsin, the northern half of Illinois, southern Michigan, and the northern/central Indiana. The event produced significant tree damage, some structural damage, and 10 tornadoes within the NWS Lincoln County Warning Area, most of which were rated EF-0 or EF-1. Back building of storms into the morning of July 16, 2024, brought very heavy rainfall and flash flooding near and south of a Galesburg to Sullivan line. The heaviest rain fell over Fulton and Mason counties where 4-8 was reported, necessitating some road closures and producing damage to roadways in Fulton County. One indirect death occurred in Peoria County as part of this thunderstorm event.