People across the south and southwest suburbs are cleaning up after powerful storms spawned tornadoes, uprooting trees, damaging homes and knocking out power.
The National Weather Service is still assessing the damage, but their efforts might be impacted by storms later today.
POWER OUTAGES | Track power outages in your area with the ABC7 Chicago Power Outage Tracker
In Chicago Heights, Marian Catholic school said the campus is without power and the roof suffered significant damage. All student activities are canceled.
SEE ALSO | School Closings: Chicago Area Complete List
Downed power lines reportedly sparked a house fire in Frankfort.
Downed power lines cause house fire amid severe weather in Frankfort
250 students at Homewood-Flossmoor High School were forced to shelter with faculty during the storms.
In Tinley Park, the Credit Union 1 Amphitheatre was also ripped apart.
In Lansing, neighbors describe the sky turning dark in the middle of the day and say it wasn't until the storm passed that they realized just how widespread the damage was.
MORE COVERAGE | At least 3 tornadoes down trees and power lines, cause flooding and damage across south suburbs
ABC7 meteorologists are alerting of the next round of storms on Wednesday.
The storms also impacted a West Side 100th birthday celebration for Gus Rickette, the co-founder of Uncle Remus Saucy Fried Chicken.
Strong storms in Chicago interrupt Gus Rickette's 100th birthday party
People tried to take cover as pieces of their setup were being blown away.
In northwest Indiana, a deadly house explosion is now being linked to the extreme weather.