A rare 1,000 year storm dropped over 9 inches of rain in Milwaukee, flooding streets, stranding cars and prompting emergency declarations.

Record flooding rains fell in Wisconsin over the weekend, triggering dozens of water rescues, shutting down the Wisconsin State Fair and prompting Milwaukee County officials to declare a state of emergency.

Forecasters say some of the strong storm cells could generate rainfall rates of 1.5 to 2.5 inches per hour, which could result in rapid flooding on roads and near creeks or streams.