The Enhanced Fujita Scale provides an estimated range of a tornado's wind speeds, based on the tornado's damage.

Evacuation orders have been issued for a town in western Oklahoma, and thousands of people are without power as a strong windstorm moves through the state. >> Open the video player above to watch live ...

Tornadoes are among the most destructive forces of nature, with the power to wipe out entire neighborhoods in minutes. The first tornado forecast was issued on March 25, 1948, a time when they were ...

“But there were no major injuries.” Most terrifying was El Reno, the widest tornado ever recorded, which tore through Oklahoma in May 2013 at 2.6 miles wide with wind speeds of more than ...