The National Weather Service has rated the tornado that passed through Grinnell on Sunday an EF-3 with an estimated peak wind ...

Following tornadic storms Sunday in Denver, the National Weather Service will conduct storm surveys to determine their ...

The National Weather Service has finished its survey of the deadly tornado that ripped through southeastern Kentucky last ...

The tornado that struck in Pulaski County Friday night — and into the early morning hours continuing through neighboring Laurel County — has been officially determined to have been an EF-4. The rating ...

The severity of the damage in the county depends on the specific location, but preliminary assessments show that some areas ...

"Weak links in a structural system or a slow-moving storm sometimes lead to an over rating of a tornado event." Tornadoes are measured on the EF Scale, which replaced the Fujita Scale in 2007.

When a tornado strikes, a team from the National Weather Service (NWS) is sent out to assess the storm’s wind speeds and ...

MILWAUKEE - Tornadoes are categorized on what is called the Enhanced Fujita Scale or EF Scale. The Enhanced Fujita Scale ...

A brief tornado touched down on May 16 just south of Chesaning village limits, confirmed the National Weather Service’s Detroit/Pontiac office Thursday after surveying damage near the ...