Data tools that can assist in understanding the potential demographic and economic impacts of flash floods.

A severe weather outbreak spanning across parts of the lower Mississippi Valley into the Mid-South and lower Ohio Valley began the morning of April 2.

The National Weather Service estimates that about 20 inches (50 centimeters) of rain deluged the hardest-hit spots.

California has been severely impacted by major winter storms, atmospheric rivers, torrential rain, and mudslides over many months.