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

In a spring of historic tornado outbreaks, a single late May tornado in southwest Missouri was the mic drop on a truly terrible 2011. On May 22, 2011, 14 years ago today, an EF5 tornado tore a ...

A deadly tornado in Enderlin, North Dakota, on June 20 has been upgraded to an EF5, marking the first EF5 tornado in the ...

The NWS confirmed the Enderlin tornado reached 210 mph, upgrading it to an EF-5 — the first since 2013’s Moore, OK storm.

Dave Malkoff is a national correspondent with the CBS Innovation Lab, where his work appears across all CBS News and Station platforms. Twelve years ago, the last EF5 tornado to hit the United States ...

The tornado probably had winds close to 200 mph as it churned through southern Kansas. WICHITA — On May 4, 2007, Greensburg, Kansas, was slammed by a 205 mph EF5 tornado that killed 12 and damaged or ...

From the producers of "Dateline," NBC's new series "Survival Mode" will give viewers an inside look at some of the largest and most recent disasters through accounts from those who lived through them.

On Sunday, May 25, an EF-1 tornado ripped through Puerto Varas in southern Chile in South America. It’s estimated that 50-60 tornadoes occur in Chile each year, but this number could be higher.