A frontal boundary across the area triggered scattered thunderstorms over the region.  A few of the storms produced large hail and damaging thunderstorm winds.  Flash flooding was also reported.

Thunderstorm Wind in ANDERSON, TENNESSEE
From 01-AUG-12 14:40:00 to 01-AUG-12 14:50:00 (EST-5)
Location: OAK RIDGE
Magnitude: 50.00 EG
Property damage: 2.00K
Crop damage: 0.00K
Reported by: Public

An individual from the public reported a large tree downed by thunderstorm wind near Oak Ridge.

Thunderstorm Wind in ROANE, TENNESSEE
From 01-AUG-12 14:45:00 to 01-AUG-12 14:55:00 (EST-5)
Location: HARRIMAN
Magnitude: 50.00 EG
Property damage: 3.00K
Crop damage: 0.00K
Reported by: State Official

Law enforcement personnel reported a few trees downed by thunderstorm wind in Harriman.

Hail in KNOX, TENNESSEE
From 01-AUG-12 14:50:00 to 01-AUG-12 14:52:00 (EST-5)
Location: BYRDS CHAPEL
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Public reported thunderstorms produced quarter-sized hail 5 miles southeast of Oak Ridge near Byrds Chapel.

Thunderstorm Wind in KNOX, TENNESSEE
From 01-AUG-12 14:50:00 to 01-AUG-12 15:00:00 (EST-5)
Location: FARRAGUT
Magnitude: 50.00 EG
Property damage: 3.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Law enforcement personnel reported a few trees downed by thunderstorm wind in Farragut.

Hail in KNOX, TENNESSEE
From 01-AUG-12 16:10:00 to 01-AUG-12 16:12:00 (EST-5)
Location: MASCOT
Magnitude: 1.50 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Employee

A NWS employee reported thunderstorms produced ping pong size hail in Mascot.

Thunderstorm Wind in GRAINGER, TENNESSEE
From 01-AUG-12 17:00:00 to 01-AUG-12 17:10:00 (EST-5)
Location: RUTLEDGE
Magnitude: 50.00 EG
Property damage: 3.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Trained spotter reported several limbs and small trees downed by thunderstorm wind in Rutledge.

Hail in MCMINN, TENNESSEE
From 01-AUG-12 17:25:00 to 01-AUG-12 17:28:00 (EST-5)
Location: ENGLEWOOD
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

An individual from the public reported thunderstorms produced quarter-size hail in Englewood.

Thunderstorm Wind in UNION, TENNESSEE
From 01-AUG-12 17:28:00 to 01-AUG-12 17:35:00 (EST-5)
Location: MAYNARDVILLE
Magnitude: 50.00 EG
Property damage: 3.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Law enforcement personnel reported several trees downed by thunderstorm wind in Maynardville.

Hail in MCMINN, TENNESSEE
From 01-AUG-12 17:40:00 to 01-AUG-12 17:42:00 (EST-5)
Location: ETOWAH
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Amateur radio personnel reported thunderstorms produced quarter-size hail in Etowah.

Hail in BRADLEY, TENNESSEE
From 01-AUG-12 19:53:00 to 01-AUG-12 19:55:00 (EST-5)
Location: CLEVELAND
Magnitude: 1.25 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Public reported thunderstorms produced Kennedy half dollar sized hail in Cleveland.

Thunderstorm Wind in MARION, TENNESSEE
From 01-AUG-12 20:35:00 to 01-AUG-12 20:45:00 (CST-6)
Location: MARTIN SPGS
Magnitude: 50.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Law enforcement personnel reported several trees downed by thunderstorm wind 4 miles southwest of Martin Springs near Sequatchie.

Hail in ANDERSON, TENNESSEE
From 01-AUG-12 14:45:00 to 01-AUG-12 14:47:00 (EST-5)
Location: OAK RIDGE
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Broadcast media personnel reported thunderstorms produced hail as large as a golfball at a mall in Oak Ridge.

Hail in CLAIBORNE, TENNESSEE
From 01-AUG-12 15:30:00 to 01-AUG-12 15:32:00 (EST-5)
Location: HARROGATE
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

An individual from the public reported thunderstorms produced quarter-size hail in Harrogate-Shawanee.

Hail in GRAINGER, TENNESSEE
From 01-AUG-12 17:00:00 to 01-AUG-12 17:02:00 (EST-5)
Location: BEAN STATION
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A trained spotter reported thunderstorms produced quarter-size hail 6 miles west-southwest of Bean Station.

Hail in MCMINN, TENNESSEE
From 01-AUG-12 18:00:00 to 01-AUG-12 18:02:00 (EST-5)
Location: ETOWAH
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

The public reported thunderstorms produced quarter-size hail in Etowah.

Thunderstorm Wind in BRADLEY, TENNESSEE
From 01-AUG-12 19:25:00 to 01-AUG-12 19:27:00 (EST-5)
Location: CLEVELAND
Magnitude: 50.00 MG
Property damage: 2.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A trained spotter reported a measured wind gust to 50kts (58mph) from a thunderstorm in Cleveland.

Flash Flood in BRADLEY, TENNESSEE
From 01-AUG-12 21:00:00 to 01-AUG-12 21:30:00 (EST-5)
Location: CLEVELAND
Flood cause: Heavy Rain
Property damage: 1.00K
Crop damage: 0.00K
Reported by: 911 Call Center

Water up to 3 feet deep covered the road near the intersection of Blue Springs Road and 20th Street SE.

Thunderstorm Wind in BRADLEY, TENNESSEE
From 01-AUG-12 19:25:00 to 01-AUG-12 19:35:00 (EST-5)
Location: CLEVELAND
Magnitude: 50.00 EG
Property damage: 15.00K
Crop damage: 0.00K
Reported by: Newspaper

A local newspaper reported trees and powerlines were downed by a thunderstorm wind in Cleveland.