There are thousands of thunderstorms in the United States each year, but only a few become strong enough to spin up a tornado ...

A tornado touches down. Morgan Schneider/OU CIMMS/NOAA NSSL Chris Nowotarski, Texas A&M University Meteorologists began warning that extremely dangerous ...

Tornadoes are one of nature’s most fascinating yet terrifying phenomena. While many tornadoes last only a few minutes, some can remain on the ground for over an hour, leaving a trail of ...

The vast majority of violent tornadoes form from supercells, thunderstorms with a deep rotating updraft, called a “mesocyclone.” Vertical wind shear can enable the midlevels of the storm to ...

How far in advance can you know if a tornado is likely to be large and powerful? The vast majority of violent tornadoes form from supercells, thunderstorms with a deep rotating updraft, called a ...

This rotation, known as a mesocyclone, suggests a tornado could develop, but it has not been visually confirmed. "Radar technology has advanced significantly, allowing us to detect rotation within ...