Severe convection formed along an outflow boundary which originated over the higher terrain along the Tennessee and North Carolina border. The outflow boundary was strengthened by a strong gradient in pressure between Tropical Storm Lee over the Lower Mississippi Valley and higher pressure over the Middle Atlantic Coast. In addition, dry air in the lower levels of the atmosphere helped generate strong downdrafts within the individual storms.

Flash Flood in MCMINN, TENNESSEE
From 05-SEP-11 10:45:00 to 05-SEP-11 11:45:00 (EST-5)
Location: RICEVILLE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Dispatch reported County Road 726 was nearly impassible due to water covering the roadway.

Flash Flood in HAMILTON, TENNESSEE
From 05-SEP-11 10:52:00 to 05-SEP-11 11:52:00 (EST-5)
Location: CHICKAMAUGA
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Dispatch reported numerous road closures and stalled vehicles due to high water in Chattanooga. These roads include Gunbarrel Road, Shallowford Drive, Chickamauga Road, Valley Brook road, North Moore Road, and Arrow Road. Some water was waste deep.

Flash Flood in BRADLEY, TENNESSEE
From 05-SEP-11 11:03:00 to 05-SEP-11 12:03:00 (EST-5)
Location: CLEVELAND
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Dispatch reported multiple road closures and stalled vehicles due to high water in the Cleveland area. These roads include Georgetown Road, Mouse Creek Road, and Victory Street. Water was reported to be reaching up to the headlights of parked cars.

Flash Flood in BRADLEY, TENNESSEE
From 05-SEP-11 12:13:00 to 05-SEP-11 14:13:00 (EST-5)
Location: TASSO
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Dispatch reported water coming over the bridge at the intersection of Blythe Ferry Road and Ocoee Crossing, near Cleveland.

Thunderstorm Wind in SULLIVAN, TENNESSEE
From 03-SEP-11 15:35:00 to 03-SEP-11 15:35:00 (EST-5)
Location: SPRINGDALE
Magnitude: 65.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

The roof was damaged on the Model City Apartment buildings on Stonegate Road.

Thunderstorm Wind in HAWKINS, TENNESSEE
From 03-SEP-11 16:00:00 to 03-SEP-11 16:00:00 (EST-5)
Location: CHURCH HILL
Magnitude: 60.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Several trees were reported down.

Thunderstorm Wind in BLOUNT, TENNESSEE
From 03-SEP-11 16:20:00 to 03-SEP-11 16:20:00 (EST-5)
Location: MARYVILLE
Magnitude: 55.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

A few trees were reported down.

Thunderstorm Wind in LOUDON, TENNESSEE
From 03-SEP-11 16:30:00 to 03-SEP-11 16:30:00 (EST-5)
Location: JENA
Magnitude: 55.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Several trees were reported down.

Thunderstorm Wind in LOUDON, TENNESSEE
From 03-SEP-11 17:00:00 to 03-SEP-11 17:00:00 (EST-5)
Location: HIGHLAND PARK
Magnitude: 55.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Several trees were reported down.

Thunderstorm Wind in KNOX, TENNESSEE
From 03-SEP-11 17:25:00 to 03-SEP-11 17:25:00 (EST-5)
Location: WEST KNOXVILLE
Magnitude: 55.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Several trees were reported down.

Thunderstorm Wind in SEQUATCHIE, TENNESSEE
From 03-SEP-11 18:00:00 to 03-SEP-11 18:00:00 (CST-6)
Location: DUNLAP
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Several trees were reported down on Hard Luck Ranch Road.

Thunderstorm Wind in HAMILTON, TENNESSEE
From 03-SEP-11 18:00:00 to 03-SEP-11 18:00:00 (EST-5)
Location: CHATANOOGA MUNI ARPT
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

A few trees were reported down.

Flash Flood in HAMILTON, TENNESSEE
From 05-SEP-11 13:58:00 to 05-SEP-11 15:28:00 (EST-5)
Location: CHICKAMAUGA
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Dispatch reported multiple roads closed and stalled vehicles due to rising water near Chattanooga.

Strong Wind in HAMILTON, TENNESSEE
From 05-SEP-11 23:05:00 to 05-SEP-11 23:05:00 (EST-5)
Magnitude: 31.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Broadcast Media

A woman was killed when a tree fell on a car the woman was trying to relocate in her driveway.  Her house was in the East Brainerd area or about 6 miles ESE of downtown Chattanooga and about 2 miles south of the airport.
The remnants of Tropical Storm Lee had moved northward from the Gulf of Mexico to southwest of Atlanta, GA.  Heavy rains had moved into the region with a long duration of rains in the Chattanooga area.  As of midnight EDT Monday night/Tuesday morning, 9.5��� of rain had fallen over the past 30 hours. The rain-soaked grounds made trees more susceptible to toppling.
Winds at the Chattanooga airport were from the north at 21G31kt near the time of the incident.

Thunderstorm Wind in SULLIVAN, TENNESSEE
From 03-SEP-11 15:05:00 to 03-SEP-11 15:05:00 (EST-5)
Location: SPRINGDALE
Magnitude: 65.00 EG
Property damage: 50.00K
Crop damage: 0.00K
Reported by: Broadcast Media

A roof and back wall of a business located at the intersection of Eastman Road and East Stone Drive were heavily damaged due to severe thunderstorm winds.  The roof was lifted up and a large portion of the back wall collapsed in.

Flash Flood in KNOX, TENNESSEE
From 05-SEP-11 13:12:00 to 05-SEP-11 14:42:00 (EST-5)
Location: WEST KNOXVILLE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Flooding occurred on numerous roads around Knoxville, including Sherrill Blvd, Walker Road and Mineral Springs Road, Heiskel Avenue, and Proctor Street. Water rescues from stranded vehicles were made on Cross Park Drive.