A low pressure system developed over the Southern Plains and moved to the northeast. The strong low pressure system had moved to the Kansas and Missouri border by the time the event started. A very strong low-level jet, along with a very strong jet stream, moved across the Mid-South during the evening hours. An upper level short wave moved across Arkansas during the early evening hours. This short wave was the focus of thunderstorm development which produced severe thunderstorms over parts of West Tennessee.

Thunderstorm Wind in TIPTON, TENNESSEE
From 22-JAN-12 23:55:00 to 23-JAN-12 00:00:00 (CST-6)
Location: MASON
Magnitude: 55.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Some power lines were blown down on U.S. Highway 70 in Mason.

Tornado in HENDERSON, TENNESSEE
From 22-JAN-12 23:55:00 to 23-JAN-12 00:07:00 (CST-6)
Location: CENTER HILL
Tornado F-scale: EF1
Property damage: 50.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

The tornado started about 5 miles south of Lexington and moved northeast. Numerous trees were uprooted or snapped along the path. A portion of a roof was blown off a house. A shed in the backyard was also destroyed. The tornado touched down primarily on ridge tops before eventually lifting just northeast of Butterscotch Road.

Thunderstorm Wind in HARDEMAN, TENNESSEE
From 22-JAN-12 23:12:00 to 22-JAN-12 23:20:00 (CST-6)
Location: HICKORY VLY
Magnitude: 87.00 EG
Property damage: 25.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

One building was damaged. A car was blown near a tree. Numerous trees were blown down with a few trees falling on a house.

Thunderstorm Wind in MADISON, TENNESSEE
From 22-JAN-12 23:14:00 to 22-JAN-12 23:35:00 (CST-6)
Location: JACKSON
Magnitude: 60.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Many trees were knocked down across the county.

Thunderstorm Wind in CROCKETT, TENNESSEE
From 22-JAN-12 22:15:00 to 22-JAN-12 22:20:00 (CST-6)
Location: FRIENDSHIP
Magnitude: 60.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Law Enforcement

A carport was destroyed in the town of Friendship.

Thunderstorm Wind in OBION, TENNESSEE
From 22-JAN-12 22:15:00 to 22-JAN-12 22:20:00 (CST-6)
Location: UNION CITY
Magnitude: 50.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Amateur Radio

A couple of trees were knocked on Nailing Road.

Hail in TIPTON, TENNESSEE
From 22-JAN-12 22:15:00 to 22-JAN-12 22:20:00 (CST-6)
Location: ATOKA
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Nickel size hail fell in Atoka.

Thunderstorm Wind in GIBSON, TENNESSEE
From 22-JAN-12 22:30:00 to 22-JAN-12 22:35:00 (CST-6)
Location: DYER
Magnitude: 65.00 EG
Property damage: 20.00K
Crop damage: 0.00K
Reported by: Public

A metal detachable garage was blown over.

Thunderstorm Wind in SHELBY, TENNESSEE
From 22-JAN-12 22:18:00 to 22-JAN-12 22:23:00 (CST-6)
Location: WHITEHAVEN
Magnitude: 91.00 EG
Property damage: 75.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

The Welcome To Tennessee sign was blown down on Interstate 55 just north of the Tennessee/Mississippi border. A large roof was blown off of a building and dropped it about 200 feet away.

Thunderstorm Wind in SHELBY, TENNESSEE
From 22-JAN-12 22:36:00 to 22-JAN-12 22:40:00 (CST-6)
Location: SHELBY FARMS
Magnitude: 56.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Employee

An estimated wind gust of 65 mph was reported at the National Weather Service Office.