A "considerable" flash flood warning has been issued in Boston as heavy, life-threatening rain pounds the city and areas to the south. Two to 4 inches of rain has fallen so far. Rainfall rates are reaching up to 2 inches per hour.

Communities south of Boston have seen as much as 4 and a half inches of rain, with a flash flood warning still in effect.

Chicago experienced one of its heaviest rainfall events since September 2023 on Tuesday night, leading to water rescues and flooded basements.An outflow boundary surging northward into the city from earlier storms south of Interstate 80 led to one lone thunderstorm cell developing over Chicago just before 9 p.