Roughly five million people across the Midwest were placed under an urgent tornado warning on Tuesday as severe storms tear through the densely populated Chicago area. The National Weather Service issued tornado warnings for multiple counties across the region as extreme winds and heavy rain caused flooding and blackouts. Weather officials issued urgent tornado warnings in the Chicago area.
The National Weather Service warned residents to find shelter indoors even if they cannot see or hear a tornado forming. "Heavy rainfall may hide this tornado. Do not wait to see or hear the tornado. TAKE COVER NOW!" the agency wrote. Officials added, "This cluster of thunderstorms is capable of producing tornadoes and widespread significant wind damage. Do not wait to see or hear the tornado. For your protection move to an interior room on the lowest floor of a building."
Meteorologist Max Velocity reported that weather stations in Illinois registered wind gusts exceeding 130 mph. He added that radar scans indicated multiple tornadoes likely touched down in northern Illinois, with severe weather moving east into Indiana, Ohio, and Michigan. A major thunderstorm was pictured moving in on the city of Chicago.
Extreme Winds and Local Impacts
Velocity stressed the danger during a YouTube livestream following the storms. "This is an extremely dangerous situation. I cannot stress enough that you have to take shelter. Even if you are not under a tornado, you have to take shelter, even if you are under a severe thunderstorm warning," Velocity said.
Drivers in Illinois and Indiana were seen taking shelter under overpasses. Velocity noted that doing so was a potentially deadly mistake because winds actually get stronger and more dangerous under an overpass.
Torrential downpours and high winds reached Indiana at 12pm ET as the tornado warning stretched into Gary, Indiana, just 30 miles from Chicago. In Ohio, winds blew cars off the road. Roadway surveillance cameras viewed by Velocity caught dangerous winds in Columbus, Ohio flipping over a moving car on Weber Road on August 11.
Widespread Power Outages and Flood Threats
The National Weather Service issued its tornado warning for the Chicago area on August 11, placing approximately five million people in the path of the supercell. The widespread supercell, a thunderstorm strong enough to create twisters, also affected nearby states including Ohio.
Power outages mounted quickly across the region. Roughly 180,000 customers lost power in Ohio. According to PowerOutage.us, more than 300,000 customers lost power in Indiana, and around 290,000 were in the dark in Illinois as of 1:40pm ET. Another 40,000 customers lost power across Virginia and West Virginia combined.
Velocity said he believed the Midwest was hit by a derecho, a widespread and long-lived windstorm created by a fast-moving line of thunderstorms. This type of storm brings damaging straight-line winds exceeding 100 mph over large areas for hundreds of miles. Heavy rains also triggered a potentially deadly flash flood warning in Chicago through Tuesday afternoon.
Shifting Patterns of Midwest Storms
During his livestream, Velocity declared, "For 2026, Tornado Alley is literally Illinois." Studies support the shift of extreme weather hotspots from the southern United States to the Midwest and Great Lakes regions. The traditional hotspot across Texas, Oklahoma, Kansas, and Nebraska has shifted to threaten states such as Mississippi, Alabama, Tennessee, Kentucky, Arkansas, Illinois, Indiana, Missouri, and Iowa.
A 2024 study in the Journal of Applied Meteorology discovered a clear shift in tornado locations after 1985. Between 1951 and 1985, the highest number of tornadoes hit the classic Great Plains in Oklahoma, Kansas, and northern Texas. Since then, researchers found annual twister reports in Tornado Alley dropped by up to 40 percent in certain areas, while surging by 25 percent in Mississippi, Tennessee, and parts of the Ohio Valley.
While officials have made no determinations on how many tornadoes touched down on Tuesday, residents across the Great Lakes region shared social media photos of high winds bringing down trees, damaging homes, and sending branches into powerlines that started fires. Downed trees were seen throughout the Midwest as severe thunderstorms moved east over the Great Lakes.
AccuWeather noted that thunderstorms are expected to stretch into Wednesday, reaching parts of coastal Virginia, Tennessee, and the Carolinas. A massive area from Chicago to Pittsburgh is expected to receive two to eight inches of rain by Thursday.
