The heart of America's tornado activity is on the move. What we've long known as "Tornado Alley" isn't staying put in its ...

Tornadoes aren’t random - they’re the ultimate expression of chaos obeying the laws of physics. In this deep dive with storm ...

A tornado that killed three people in North Dakota this summer was upgraded Monday to an EF5, the first such tornado in the U.S. in 12 years. Level 5 is the highest rating on the Enhanced Fujita scale ...

A deadly tornado that tore across southeastern North Dakota this summer has been upgraded to an EF5 with winds topping 200 mph, the strongest classification of tornado and the first on American soil ...

Nikki Nolan is a meteorologist for CBS News and Stations. She graduated from Metropolitan State University of Denver with a Bachelor of Science degree in Meteorology and has worked in national weather ...

ST. LOUIS—Minutes after a mile-wide tornado struck this city on an otherwise beautiful day this spring, Ali Rand heard her husband shout as he surveyed the devastation surrounding their tony ...

Scattered damaging winds and hail are forecast for four states. A potent cold front sweeping across the Central U.S. barreled eastward Saturday, triggering strong to severe storms from Texas up ...

A powerful tornado in Brazil's southern state of Parana has killed six people and injured hundreds of others. State officials ...

The Brazilian authorities said several towns in the state of Paraná were struck by the tornado, which killed at least five ...