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

Meteorologists from the National Weather Service office in Grand Forks estimated the tornado’s winds reached 210 mph, ...
FOX 9 Minneapolis-St. Paul on MSN

How new research led to North Dakota tornado's EF5 upgrade

A powerful tornado struck Enderlin, North Dakota, on June 20, causing significant damage and leading to a rare EF5 classification after new research. Here's what went into the new research that led to ...
Las Vegas Sun

EF5 tornadoes — the most powerful classification — rarely occur

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