A cold front was moving south from the Tennessee Valley toward Georgia as an upper trough deepened across the eastern U.S.  A very moist, unstable atmosphere was in place across north Georgia in advance of the front.  Scattered thunderstorms developed during the afternoon and continued well into the evening.  A few of these thunderstorms became severe across northeast Georgia producing quarter-sized hail and damaging wind gusts.

Thunderstorm Wind in OCONEE, GEORGIA
From 11-AUG-09 20:22:00 to 11-AUG-09 21:09:00 (EST-5)
Location: BOGART
Magnitude: 53.00 EG
Property damage: 125.00K
Crop damage: 0.00K
Reported by: County Official

The Oconee County 911 Center reported that more than 15 trees and several power lines were down, especially across the eastern part of the county from just west of Bogart to near Barnett Shoals.  A large old oak tree fell on the roof of a home along North High Shoals Road resulting in moderate damage to the structure.  A mobile home on Dials Mill Spur was destroyed when a tree fell on it.  Trees were down on Mason Mill Road, Garrett Road, U.S. Highway 441, Fern Creek Drive, New High Shoals Drive, Jennings Mill Road, Monroe Highway, U.S. Highway 78 (Atlanta Highway) at several locations, and Pete Dickens Road.  An 18-wheel truck carrying gasoline wrecked when it ran into a tree that had fallen across Atlanta Highway near Pete Dickens Road.  The driver did not suffer any injuries.

Thunderstorm Wind in GORDON, GEORGIA
From 11-AUG-09 17:28:00 to 11-AUG-09 17:30:00 (EST-5)
Location: CALHOUN DAVID ARPT
Magnitude: 56.00 MG
Property damage: 150.00K
Crop damage: 0.00K
Reported by: Newspaper

The Calhoun Times reported that a thunderstorm downburst damaged two airplanes parked at the Tom B. David Airport, just south of Calhoun.  Two Cessna 172s were damaged as the wind gusts pushed one airplane under the other.  The airplanes were parked side-by-side an anchored by tie-down rings.  Nearby wind equipment measured wind gusts of 65 mph at the time.

Hail in BARROW, GEORGIA
From 11-AUG-09 20:15:00 to 11-AUG-09 20:25:00 (EST-5)
Location: STATHAM
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

The public observed quarter-sized hail in the Statham area.

Thunderstorm Wind in JACKSON, GEORGIA
From 11-AUG-09 19:51:00 to 11-AUG-09 19:55:00 (EST-5)
Location: BRASELTON
Magnitude: 50.00 EG
Property damage: 2.00K
Crop damage: 0.00K
Reported by: Amateur Radio

An amateur radio operator reported that a number of trees were down in the western part of the county between Georgia Highways 211 and 53.

Thunderstorm Wind in BARROW, GEORGIA
From 11-AUG-09 19:23:00 to 11-AUG-09 19:24:00 (EST-5)
Location: WINDER ARPT
Magnitude: 53.00 MG
Property damage: 15.00K
Crop damage: 0.00K
Reported by: Public

The public measured a wind gust of 61 mph on home-based weather equipment.  Further to the northwest, the awning of a BP gas station was damaged at the intersection of U.S. Highway 211 and Rockwell Church Road.  Several trees and power lines were also down in the vicinity.

Hail in GWINNETT, GEORGIA
From 11-AUG-09 19:34:00 to 11-AUG-09 19:39:00 (EST-5)
Location: HOG MTN
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

The public observed hail in extreme northeast Gwinnett county near the Hall county line in the Rest Haven community to northeast of Hog Mountain.