First EF5 tornado to strike the US in over a decade just confirmed by experts

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

A June tornado turned out to be a rare EF5. Why that’s surprising — and important

There hadn’t been an EF5 — the most intense on the five-point Enhanced Fujita Scale — anywhere on the planet for more than 12 years, dating back to an Oklahoma tornado on May 20, 2013. And then on ...

EF5 tornado that killed 3 in North Dakota was the nation's first in 12 years

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

North Dakota EF5 upgrade reignites debate over tornado classifications

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