The National Weather Service says the tornado in Graves County on Tuesday was a quarter of mile wide and peaked at 145 miles per hour.
We know it started 6 miles west of Mayfield on Louis Road and continued and into Marshall County.
Rick Shanklin with the National Weather Service spent his day tracking damage caused by the tornado.
He is meeting with homeowners to ask them if they got their tornado alerts. Shanklin says these storms form fast, so it's important you take cover as soon as you receive a tornado alert.
"A lot of the challenge is convincing people to take shelter and not waiting until they see a tornado. There's still progression that needs to be made in warning systems with technology," Shanklin said.
Shanklin says a team will be tracking the damage until later tonight and will know more about where it ended after that.
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