The severe weather posed risks to outdoor activities, including football games and other events. Damaging winds, large hail, and isolated tornadoes were the primary threats, with heavy downpours increasing the risk of localized flooding. Residents in affected counties, including LaSalle, DeKalb, Cook, and DuPage, were urged to stay indoors and monitor weather updates. The NWS emphasized the importance of seeking shelter during thunderstorms, as lightning strikes could occur even without visible rain.