In an advisory, the NWS warned that portions of the three states are under flash flood warnings due to expected thunderstorms that will bring heavy rain.

Chicago residents are cleaning up after strong storms with hard rains caused flash flooding Friday, especially on the South Side.

The heavy rain came after severe flooding in the area killed three people and damaged dozens of homes on July 8.

The Links at Groveport sits near the Little Walnut Creek which has flooded before. But it has never seen four inches in an hour.

Another day of scattered heavy thunderstorms inside what forecasters called a juicy, "tropical-like" air mass Saturday has renewed the risk of flash flooding across several states from Iowa to Pennsylvania,

The National Weather Service issued a flash flood warning for Chicago, urging 600,000 residents to take precautions. More rain is expected overnight, with storms anticipated Saturday afternoon. Residents were seen wading through knee-deep water amid the severe weather disruptions.

The family of Anupama Vaidya, a 62-year-old Overland Park woman who died in a flash flood Monday, says they want the community’s help with ways to honor her.