At least four tornadoes from a powerful supercell tore across parts of Illinois and Indiana Tuesday, killing two people in Lake Village, injuring others, damaging homes and infrastructure, and producing destructive hail across the region.

Strong thunderstorms are sweeping through the Chicago area Tuesday afternoon, evening and into Wednesday, sparking possible tornadoes and causing damage.

After a dangerous evening that saw at least four tornadoes touch down, Chicagoland is shifting to storm cleanup and a colder, unsettled stretch of weather.

Based on the debris left behind in Aroma, Park, the tornado in Kankakee County Tuesday night was large and destructive. This is how we can tell, and the science behind why it happened.

On April 21, 1967, at least 10 tornadoes touched down in northern Illinois. The most severe of these touched down in Belvidere, Oak Lawn and Lake Zurich. It was the worst such storm in the area’s history: 58 people were killed, including many children, and more than 1,000 were injured.

All types of severe weather are possible, including large hail and wind gusts that could cause damage and tornadoes, especially over parts of Missouri, Iowa, Illinois, Indiana and southern Michigan, as well as portions of the Texas Plains into southwest Oklahoma.

A string of tornadoes touched down in multiple states as severe weather stretched from Texas to Michigan.

A tornado watch is in effect for Houston and much of Southeast Texas until 6 p.m. Wednesday as storms capable of wind damage, hail and tornadoes move in.