A stationary front was located across the Mid-South during the day on June 12th, 2009. During the early morning hours, a mesoscale convective system developed over Eastern Oklahoma and tracked east into the Mid-South during the afternoon and evening hours. A derecho tracked across the Mid-South producing numerous reports of damaging winds, large hail and flash flooding. Wind speeds were reported as high as 80 mph. Isolated tornadoes occurred along the bow echo. In addition, scattered thunderstorms developed over ahead of the bow echo and produced large hail, damaging winds and flash flooding as well.

Thunderstorm Wind in SHELBY, TENNESSEE
From 12-JUN-09 16:30:00 to 12-JUN-09 16:35:00 (CST-6)
Location: ARLINGTON
Magnitude: 61.00 EG
Crop damage: 0.00K
Reported by: Trained Spotter

Straight line winds blew large trees down in Arlington. Power lines were also knocked down causing power outages.

Thunderstorm Wind in SHELBY, TENNESSEE
From 12-JUN-09 15:40:00 to 12-JUN-09 15:45:00 (CST-6)
Location: NORTH
Magnitude: 52.00 EG
Crop damage: 0.00K
Reported by: Broadcast Media

Straight line winds shattered glass store fronts along South Main Street in Downtown Memphis. In addition, car windows were broken near the Amtrak Station. One serious injury occurred when a tree fell on a person near the Pyramid Arena.

Thunderstorm Wind in SHELBY, TENNESSEE
From 12-JUN-09 15:45:00 to 12-JUN-09 15:50:00 (CST-6)
Location: BINGHAMTON
Magnitude: 50.00 EG
Crop damage: 0.00K
Reported by: Amateur Radio

Straight line winds blew trees down in Midtown Memphis and blew an 18-wheeler over on it's side on Interstate 40 between exit 8 and 10. Mature trees were knocked down at Interstate 240 and Jackson Avenue. An air conditioning unit on the roof of the White Station Library was blown off.

Hail in FAYETTE, TENNESSEE
From 12-JUN-09 16:15:00 to 12-JUN-09 16:20:00 (CST-6)
Location: WARREN
Magnitude: 1.00 
Crop damage: 0.00K
Reported by: NWS Employee

Quarter size hail fell east of Oakland.

Thunderstorm Wind in SHELBY, TENNESSEE
From 12-JUN-09 16:05:00 to 12-JUN-09 16:10:00 (CST-6)
Location: MILLINGTON
Magnitude: 50.00 EG
Crop damage: 0.00K
Reported by: Amateur Radio

Straight line winds knocked down trees and power lines at Wilkinsville Road and Church Street in Millington.

Hail in SHELBY, TENNESSEE
From 12-JUN-09 16:18:00 to 12-JUN-09 16:23:00 (CST-6)
Location: ARLINGTON MUNI ARPT
Magnitude: 1.75 
Crop damage: 0.00K
Reported by: Trained Spotter

Golf ball size hail fell in Arlington.

Hail in FAYETTE, TENNESSEE
From 12-JUN-09 16:20:00 to 12-JUN-09 16:25:00 (CST-6)
Location: OAKLAND
Magnitude: 0.75 
Crop damage: 0.00K
Reported by: Trained Spotter

Flash Flood in SHELBY, TENNESSEE
From 12-JUN-09 16:30:00 to 12-JUN-09 17:30:00 (CST-6)
Location: SHELBY FARMS
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Heavy rain produced flash flooding in and around Bartlett. Sycamore View at Interstate 40 was flooded as well as Whitten and Dexter Roads.

Thunderstorm Wind in SHELBY, TENNESSEE
From 12-JUN-09 15:50:00 to 12-JUN-09 16:07:00 (CST-6)
Location: GERMANTOWN
Magnitude: 61.00 EG
Crop damage: 0.00K
Reported by: Trained Spotter

Straight line winds knocked down numerous trees and power lines in Germantown. A railroad crossing arm was blown away and wrapped around a power pole at Hacks Cross Road and Poplar Pike.

Thunderstorm Wind in SHELBY, TENNESSEE
From 12-JUN-09 15:50:00 to 12-JUN-09 16:07:00 (CST-6)
Location: CORDOVA
Magnitude: 50.00 EG
Crop damage: 0.00K
Reported by: Amateur Radio

Straight line winds knocked down trees at the intersection of Dexter Road and Germantown Road in Cordova.

Thunderstorm Wind in FAYETTE, TENNESSEE
From 12-JUN-09 16:05:00 to 12-JUN-09 16:10:00 (CST-6)
Location: PIPERTON
Magnitude: 61.00 EG
Crop damage: 0.00K
Reported by: Trained Spotter

Straight line winds knocked down large trees at Highway 57 and Highway 196 in Piperton.

Hail in FAYETTE, TENNESSEE
From 12-JUN-09 16:35:00 to 12-JUN-09 16:40:00 (CST-6)
Location: WARREN
Magnitude: 0.88 
Crop damage: 0.00K
Reported by: NWS Employee

Nickel size hail fell east of Oakland.

Hail in SHELBY, TENNESSEE
From 12-JUN-09 15:37:00 to 12-JUN-09 15:42:00 (CST-6)
Location: OVERTON
Magnitude: 1.00 
Crop damage: 0.00K
Reported by: Trained Spotter

Quarter size hail fell 2 miles north of the intersection of Highway 51 and North Watkins Street near Shelby Forest.

Thunderstorm Wind in SHELBY, TENNESSEE
From 12-JUN-09 15:40:00 to 12-JUN-09 15:45:00 (CST-6)
Location: NONCONNAH
Magnitude: 50.00 EG
Crop damage: 0.00K
Reported by: Amateur Radio

Straight line winds knocked down a street light on South Third Street at Brooks Road and Peebles Road.

Thunderstorm Wind in FAYETTE, TENNESSEE
From 12-JUN-09 16:35:00 to 12-JUN-09 16:40:00 (CST-6)
Location: WARREN
Magnitude: 50.00 EG
Crop damage: 0.00K
Reported by: NWS Employee

Straight line winds broke off the tops of two cherry trees.

Tornado in SHELBY, TENNESSEE
From 12-JUN-09 16:00:00 to 12-JUN-09 16:01:00 (CST-6)
Location: BARTLETT
Tornado F-scale: EF1
Property damage: 25.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

A brief tornado touched down near the intersection of Bartlett Boulevard and Elmore Road in Bartlett. This tornado snapped numerous hardwood trees and caused minor roof damage to several homes. The estimated maximum winds were 105 mph.

Thunderstorm Wind in SHELBY, TENNESSEE
From 12-JUN-09 15:50:00 to 12-JUN-09 16:08:00 (CST-6)
Location: BARTLETT
Magnitude: 61.00 EG
Crop damage: 0.00K
Reported by: Trained Spotter

Straight line winds blew numerous trees down in Bartlett. Trees fell on houses in the vicinity of Sycamore View Road and Interstate 240. Power lines were knocked down at Yale Road near Covington Pike. Windows were shattered from a building on Kirby-Whitten Road just south of Summer Avenue. The front of the building was destroyed. A front porch was also damaged in the area. Trees were knocked down on Memphis-Arlington Road and Highway 70. Several dozen trees were knocked down on Sycamore View Road and Bartlett Road. Ellendale was also hit hard as numerous old trees were knocked down in the neighborhood.

Hail in SHELBY, TENNESSEE
From 12-JUN-09 16:00:00 to 12-JUN-09 16:05:00 (CST-6)
Location: FOREST HILL
Magnitude: 0.88 
Crop damage: 0.00K
Reported by: Amateur Radio

Nickel size hail fell at the intersection of Forest Hill-Irene Road and Poplar Avenue in Germantown.