Devastating, life-threatening floods have already started in some states as an atmospheric river causes heavy rainfall.

Sometimes you'll hear the phrase "100-year flood." Here's how meteorologists define that term and how to see if you live in a flood plain.

Severe storms have caused flooding across Louisville, which in turn is causing roads to be closed. The following roads/ramps ...

A deadly tornado outbreak ripped through the South and Midwest Wednesday and Thursday, destroying homes and neighborhoods, ...

One person was killed and 10 others were injured, one critically, as tornadoes and severe weather struck the Midwest and ...

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"A lot of people think, 'OK, if I've had a 500-year flood now ... a statistical calculation that helps the government determine floodplain maps, marking the boundary where there's a 1% chance ...

Nearly 2.5 million people were placed in a "high-risk" zone, which included parts of west Tennessee, northeast Arkansas, ...

The three states with the highest number of tornadoes per year are, in order from highest to lowest: Texas, Kansas and Oklahoma. We've now got three days of high risk flooding ahead of us ...

More than 37 million people were under flood watches stretching from Texarkana, Texas, to Detroit and Ohio on Wednesday evening, according to a weather service map of alerts and advisories.