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

A lead forecaster with the National Weather Service branch in Louisville told LEX18 the path to determine a tornado's rating ...

For many of the people who attended the standing-room-only discussion of the 40th anniversary of the May 31, 1985, tornado ...

The National Weather Service confirmed that two EF-1 tornadoes hit East Tennessee, causing concentrated damage and downed trees, but no injuries or fatalities.

(KSNW) — The National Weather Service has rated the tornado that passed through Grinnell on Sunday an EF-3 with an estimated peak wind speed of 140 mph. The NWS uses a rating scale known as the ...

The ratings of two other confirmed tornadoes on the Eastern Plains remain unknown, NWS meteorologist David Barjenbruch said. All four tornadoes hit between 1 and 2 p.m. Sunday. EF2 tornadoes reach ...

Surveys are now underway to determine tornado ratings. While Louisville experienced tree damage and power outages, no life-threatening injuries were reported. This story has been updated with new ...