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 out of Boulder has released the EF Scale ratings for the four tornadoes that tore across ...

(KWCH) - The National Weather Service in Goodland has rated the powerful storm that heavily damaged much of the town of Grinnell in Gove County Sunday night as an EF2 tornado. Although that rating ...

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

The National Weather Service released new data after storms ripped across Oklahoma over the weekend and earlier this week.

(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 ...