Widespread convective event developed across the entire region ahead of an outflow boundary that shifted southeast out of the Ohio Valley. An unstable air mass and more than sufficient wind shear helped the storms strengthen generating damaging winds.

Thunderstorm Wind in ANDERSON, TENNESSEE
From 27-MAY-17 21:25:00 to 27-MAY-17 21:25:00 (EST-5)
Location: SOUTH CLINTON
Magnitude: 50.00 EG
Reported by: State Official

Several trees were reported down across the county.

Thunderstorm Wind in CAMPBELL, TENNESSEE
From 27-MAY-17 21:25:00 to 27-MAY-17 21:25:00 (EST-5)
Location: FORDTOWN
Magnitude: 50.00 EG
Reported by: State Official

A few trees were reported down across the county.

Thunderstorm Wind in SEQUATCHIE, TENNESSEE
From 27-MAY-17 20:29:00 to 27-MAY-17 20:29:00 (CST-6)
Location: DUNLAP
Magnitude: 50.00 EG
Reported by: Storm Chaser

Two trees were downed in Sequatchie County.

Thunderstorm Wind in KNOX, TENNESSEE
From 27-MAY-17 21:40:00 to 27-MAY-17 21:40:00 (EST-5)
Location: WEST KNOXVILLE
Magnitude: 50.00 EG
Reported by: State Official

Numerous trees and power lines were reported down across the county.

Thunderstorm Wind in BLEDSOE, TENNESSEE
From 27-MAY-17 20:00:00 to 27-MAY-17 20:00:00 (CST-6)
Location: PIKEVILLE
Magnitude: 50.00 EG
Reported by: State Official

Numerous trees were reported down across the county.

Thunderstorm Wind in SCOTT, TENNESSEE
From 27-MAY-17 21:00:00 to 27-MAY-17 21:00:00 (EST-5)
Location: ONEIDA
Magnitude: 50.00 EG
Reported by: State Official

A few trees were reported down across the county.

Thunderstorm Wind in MORGAN, TENNESSEE
From 27-MAY-17 21:07:00 to 27-MAY-17 21:07:00 (EST-5)
Location: WARTBURG
Magnitude: 50.00 EG
Reported by: State Official

Massive trees and power lines were reported down across the entire county.

Thunderstorm Wind in ROANE, TENNESSEE
From 27-MAY-17 21:20:00 to 27-MAY-17 21:20:00 (EST-5)
Location: KINGSTON
Magnitude: 50.00 EG
Reported by: State Official

Several trees were reported down across the county.

Thunderstorm Wind in COCKE, TENNESSEE
From 27-MAY-17 22:45:00 to 27-MAY-17 22:45:00 (EST-5)
Location: DEL RIO
Magnitude: 50.00 EG
Reported by: State Official

Several trees were reported down across the eastern part of the county.

Thunderstorm Wind in KNOX, TENNESSEE
From 27-MAY-17 21:40:00 to 27-MAY-17 21:40:00 (EST-5)
Location: NORWOOD
Magnitude: 50.00 EG
Reported by: State Official

Extensive damage was reported across West Knox County. Cars were crushed by trees, windows were blown out, and a chimney was destroyed at a residence.

Thunderstorm Wind in LOUDON, TENNESSEE
From 27-MAY-17 21:43:00 to 27-MAY-17 21:43:00 (EST-5)
Location: LOUDON
Magnitude: 50.00 EG
Reported by: State Official

Widespread trees and power lines were reported down across the county.

Thunderstorm Wind in MCMINN, TENNESSEE
From 27-MAY-17 21:58:00 to 27-MAY-17 21:58:00 (EST-5)
Location: ATHENS
Magnitude: 50.00 EG
Reported by: State Official

Numerous trees were downed across the county. One tree fell onto a home damaging the structure.

Thunderstorm Wind in BLOUNT, TENNESSEE
From 27-MAY-17 22:00:00 to 27-MAY-17 22:00:00 (EST-5)
Location: MARYVILLE
Magnitude: 50.00 EG
Reported by: State Official

Widespread trees and power lines were reported down. Several trees had fallen on homes.

Thunderstorm Wind in GRAINGER, TENNESSEE
From 27-MAY-17 22:10:00 to 27-MAY-17 22:10:00 (EST-5)
Location: RUTLEDGE
Magnitude: 50.00 EG
Reported by: State Official

Numerous trees were reported down across the county.

Thunderstorm Wind in COCKE, TENNESSEE
From 27-MAY-17 22:15:00 to 27-MAY-17 22:15:00 (EST-5)
Location: NORTHPORT
Magnitude: 50.00 EG
Reported by: State Official

Numerous trees were reported down across the county.

Thunderstorm Wind in GREENE, TENNESSEE
From 27-MAY-17 22:53:00 to 27-MAY-17 22:53:00 (EST-5)
Location: STAUNTON MILL
Magnitude: 50.00 EG
Reported by: State Official

Several trees were reported down across the western part of the county.

Thunderstorm Wind in LOUDON, TENNESSEE
From 27-MAY-17 21:43:00 to 27-MAY-17 21:43:00 (EST-5)
Location: HIGHLAND PARK
Magnitude: 50.00 EG
Reported by: Trained Spotter

A roof was removed from a shed in Lenoir City.

Thunderstorm Wind in UNICOI, TENNESSEE
From 27-MAY-17 23:22:00 to 27-MAY-17 23:22:00 (EST-5)
Location: ROCKY FORK
Magnitude: 50.00 EG
Reported by: State Official

A few trees were reported down across the Sam's Gap area.