A tornado swept through a swath of Tennessee, killing a mother and daughter and injuring at least three other people as it ...

Two tornadoes moved through eastern Tennessee, leaving a mother and daughter dead and injuring three other people, officials ...

Preliminary storm surveys determined that two tornadoes hit the region on Thursday, the National Weather Service said.

The National Weather Service has released more information about two tornadoes that hit Morgan County and Grainger County ...

Articles published early online in American Meteorological Society journals discuss weather associated with California wildfires, the "drought" of EF5 tornadoes, and U.S. locations at heightened risk ...

low-lying clouds The Enhanced Fujita Scale (EF Scale) is used to assign a tornado a rating based on its estimated wind speeds ...

The most prone tornado regions in Canada are the Prairie provinces, Ontario, and Quebec. The Enhanced Fujita (EF) scale is used to rate tornadoes based on the severity of the damage they produce ...

Officials in eastern Tennessee say two people were killed when severe storms with two tornadoes moved through the region.

5. The tornado, the first to touch down in Arkansas this year, has received an EF1 rating. EF stands for Enhanced Fujita Scale, according to the weather service's website. Tornadoes are rated from ...