Generational rainfall amounts fall across much of the Mid-South Wednesday to Saturday, resulting in catastrophic river, areal, and flash flooding. ...FLOOD WATCH REMAINS IN EFFECT THROUGH SUNDAY

Teams are still evaluating the destruction, and the rating released Tuesday, May 21, is preliminary. So far, they've found that the tornado spanned 1.3 miles -- the length of more than 22 football ...

Samaras guessed right: The eye passed just 10 feet (3 meters) from the probe ... Understanding these winds—the tornado's strongest and most erratic—may enable engineers to design better ...

With new innovations and technology, scientists have learned from major tornado outbreaks over the years how to improve safety guidance. During tornado season, forecasters try to get the word out about staying safe during a storm — but also planning for it ahead of time.

A tornado warning will tell you specifically what prompted it to be issued. Many are issued based on radar showing rotation, indicating a tornado is possible. Others can be confirmed as in progress by debris detected on radar or visually by a spotter.

Nearly 8.3 million people were under tornado watches Saturday evening ... outages from the Gulf Coast to the Great Lakes. Winds may include gusts in excess of 40 mph from the northern Plains ...