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

(CNN) — Here’s some background information about tornadoes, rotating columns of air that often, but not always, are visible as funnel clouds. According to the National Weather Service, in 2023 ...

A dangerous weekend is about to unfold across the lower Mississippi and Tennessee valleys as severe thunderstorms and torrential downpours blast the region, endangering lives and property, AccuWeather ...

The weather service's office in Morristown said on social media that a preliminary survey of the damage indicated the twister had estimated maximum winds ... of tornadoes from EF0 up to EF5 ...

The National Weather Service conducts damage surveys to estimate the range of wind speeds the tornado likely produces, giving each tornado a rating from EF0 to EF5. Many people, including new ...

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 ...

New Zealand’s tornadoes are almost always either EF0 and EF1 - that’s wind speeds of 105-137km/h and 138-177km/h respectively - and far from the likes of EF5 tornadoes that rage harder than ...