A powerful microburst, not a tornado, caused significant damage in Tempe on Oct. 13. The storm was part of the remnants of Hurricane Priscilla affecting the Phoenix area. Microbursts are sudden, ...

A tornado that killed three people in North Dakota this summer was upgraded Monday to an EF5, the first such tornado in the U.S. in 12 years. Level 5 is the highest rating on the Enhanced Fujita scale ...

According to the NWS final assessment, teams conducted additional surveys and worked with wind damage experts to estimate the Enderlin tornado's estimated wind speed was greater than 210 mph. An EF-5 ...

A deadly tornado that tore across southeastern North Dakota this summer has been upgraded to an EF5 with winds topping 200 mph, the strongest classification of tornado and the first confirmed on ...

For the first time since 2013, an EF5 tornado was confirmed in the United States. Yesterday, the National Weather Service in Grand Forks, North Dakota, upgraded the tornado rating of the Enderlin, ...

A deadly tornado that ripped through a rural city in North Dakota in June has been upgraded to an EF-5, the National Weather Service said Monday, marking the first U.S. twister with an EF-5 rating in ...

A deadly tornado that tore across southeastern North Dakota this summer has been upgraded to an EF5 with winds topping 200 mph (322 kph), the strongest classification of tornado and the first on ...