CHICAGO (WLS) -- It could be a stormy afternoon in the Chicago area.
Strong to severe storms were already popping up late Thursday morning in western Illinois.
The best chance of severe weather in our area will be from noon until 5 p.m., says ABC7 meteorologist Phil Schwarz.
Residents in northwest Indiana have the greatest chance of seeing severe storms.
City aviation officials say at O'Hare International Airport there are 20-minute delays and 100 flights canceled so far Thursday afternoon, but officials said those numbers could rise.
At Midway, there were no cancellations, but some 20-40 minute delays.