The Greenfield storm comes exactly 11 years and one day after a catastrophic tornado struck Moore, Okla. That was the last EF5 tornado on the 0-to-5 Enhanced Fujita scale to be confirmed in the ...

May 20, 2013, marks the last time the United States was hit by the worst type of tornado. On that date, a monster EF5 tornado tore a 17-mile path through the Oklahoma City suburbs, creating "40 ...

GREENFIELD, Iowa – The town of Greenfield in southwestern Iowa was directly hit by a huge tornado on Tuesday as severe weather ripped across the Midwest. "It's not good. I can say that much ...

However, the most powerful tornadoes, classified as EF5, make up less than 1% of all tornadoes in the United States, and it has been nearly 12 years since one touched down. There have been many ...

MOLINE, Ill. — A new study published by the American Meteorological Society has shed light on a puzzling phenomenon: The United States has not logged an EF5 tornado, the most violent category ...

It may be hard to believe that with an average of 1,200 tornadoes each year in the United States, we haven’t seen an EF5-rated twister in more than 11 years. But that doesn’t mean the number ...

The other, which had the most severe damage near Diaz in Jackson County, was determined to be a high-end EF4 tornado with maximum winds of 190 mph. For comparison, an EF5 tornado has winds of at ...

Note: This video is from May 2011. JOPLIN, Mo. – Almost 14 years after the deadly EF5 tornado tore through Joplin, Missouri, Netflix released a documentary Wednesday highlighting the immense ...

May 20, 2013, marks the last time the United States was hit by the worst type of tornado. On that date, a monster EF5 tornado tore a 17-mile path through the Oklahoma City suburbs, creating "40 ...