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

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 ...

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

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 rotate, ...

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 ...

This feature of a severe storm is called a mesocyclone. This large area of rotation in a storm, over time, can send energy down to the ground in the shape of tornadoes. HOUSTON (KIAH ...

and sometimes weak to violent tornadoes. What makes a supercell unique from all other thunderstorm types is that it contains a deep and persistent rotating updraft called a mesocyclone." ...