Mayor Lynn Crawford said hearts are broken over the lives lost and stomachs are in knots as residents begin to take stock of the damage.

Rain came down fast and hard Wednesday night in Chicago, creating some hazardous situations not only for drivers, but for first responders who were busy rescuing people who were stuck in high waters. Whether it's a flood on the road or rushing water, some Chicago area firefighters said their training is everything.

Heavy rainfall fell on Chicago’s West Side during a short amount of time Tuesday night, leaving some drivers flooded out in underpasses and several homeowners in ankle-deep water in their basements. A Flash Flood Warning was in effect for several hours before the water receded by early Wednesday morning.