The most rare and extreme form of tornado struck eastern North Dakota in June, but experts just determined how strong it ...

The National Weather Service has released a new rating for a tornado that hit North Dakota in June, making it the first EF-5 twister in the U.S. since one devastated Moore in 2013.

It was the strongest classification of tornado and the first confirmed on American soil in a dozen years, meteorologists said ...

This tornado, which knocked a train off its tracks, ends the 12-year 'drought' of EF5 tornadoes since the Moore, Oklahoma ...

It’s been nearly four months since devastation hit Enderlin, North Dakota, with the biggest weather event of the summer.

A deadly tornado that ripped through a rural city in North Dakota in June​ has been upgraded to an EF-5, the National Weather ...

Unlike climate change itself, there is legitimate debate on the role warmer temperatures may have played in events like Monday's tornado in Moore, Oklahoma. Was the massive storm an inevitable side ...

An enormous tornado struck the United States almost three months ago and was a first-of-its-kind event to happen in more than a decade.

As the effort turns from local rescue to national response, recovery, mourning, and resilience, they're picking up the pieces on Wednesday in Moore, Oklahoma. The injured are still being treated, ...

The storm, which killed three people and tossed train cars hundreds of feet, was nearly a mile wide and carved a 12-mile path ...

On the ground in Moore, Okla., this morning, CNN’s Chris Cuomo interviewed Rep. Mark McBride about Monday’s devastating tornado and the disaster relief that has begun. Cuomo repeatedly urged the ...

A powerful EF5 tornado struck North Dakota in June. This marks the first EF5 tornado in the United States in over a decade.