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

A dangerous tornado outbreak featuring the potential for "multiple violent" tornadoes threatens much of the Deep South ...

This resulted in a nor'easter but on a much larger scale. The storm was moving quickly to the Northeast and was ranked a Category 5 on the regional snowfall index. Rochester received more than 20 ...

Large tornadoes are carving paths of destruction across the South for the second day in a row as a deadly storm system churns across the United States. EF-4 ...