The National Weather Service said the EF5 twister in North Dakota packed winds stronger than 200 mph, underscoring risks that ...

Tornadoes rated EF5 are inconceivable. They raze the Earth with winds exceeding 200 mph, sweeping foundations bare and ...

After 12 years, the U.S. has its first EF5 tornado. Meteorologist Andrew Stutzke breaks down why this could mean other ...

While EF-5 tornadoes account for less than one-tenth of a percent of all tornadoes, the odds of seeing one in any given year are still about 40%.

Meteorologists said this week that a deadly tornado in North Dakota this summer has been upgraded to a top-of-the-scale EF5, ...

A deadly tornado that tore across southeastern North Dakota this summer has been upgraded to an EF5 with winds topping 200 ...

Level 5 is the highest rating on the Enhanced Fujita scale, which the National Weather Service has used to measure tornadoes ...

A powerful tornado struck Enderlin, North Dakota, on June 20, causing significant damage and leading to a rare EF5 ...

A powerful tornado struck Enderlin, North Dakota, on June 20, causing significant damage and leading to a rare EF5 ...

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.

The first EF5 tornado was confirmed in North Dakota, here's a history and the last F5 tornadoes to hit Michigan.