A once-in-a generation extreme weather event is beginning Wednesday with a tornado outbreak and will continue into the ...

Portions of the Midwest and Southeast recently slammed by a deadly barrage of powerful storms and flooding are continuing ...

It's been a deadly and violent start to the year for tornadoes in the United States. More than 470 tornadoes have been reported across the United States so far this year, which is nearly ...

The National Weather Service's Storm Prediction Center said that more than 5 million people were at "enhanced risk" of severe ...

As a violent and deadly month of tornadoes comes to an end, the atmosphere over parts of the U.S. will continue to produce ...

These areas face a significant threat of potentially destructive winds that could cause widespread power outages and tree ...

Nashville has been under a severe weather warning since approximately 4:00 p.m. on Tuesday. The on-and-off threat of a ...

Significant severe weather and life-threatening flash flooding continue to impact much of the mid-South up through the Ohio River Valley.

The National Weather Service issued 728 tornado and severe thunderstorm warnings in a 24-hour period on Thursday.

At least 16 people are believed to have died after tornadoes, heavy rain and flash flooding battered parts of the South and ...

WATCH: Severe thunderstorm warnings and tornado warnings pepper the Mid-South ahead of main line of extreme weather ...

Atmospheric instability has two components: rising air and wind shear, which is created as wind speed changes with height.