An Alberta clipper type system was moving quickly through the east and southeast U.S. bringing a surge of unusually cold air into the region.  Moisture was quite limited in the wake of the strong storm system that had just passed through the area on the 25th.  However, even with the lack of surface moisture and instability, very strong dynamics and cold air aloft allowed showers and even a few thunderstorms to develop during the afternoon and evening as the cold front and upper trough swept through the region.  The activity was characterized by very little lightning, but a very low freezing level and strong evaporative cooling allowed wind gusts of 40 to 50 mph and dime to penny-sized hail to accompany many of the showers and thunderstorms that passed through the area during the afternoon and evening hours.  Temperatures dropped nearly 20 degrees from the 70s into the 50s with the passage of the showers as well.

Hail in FULTON, GEORGIA
From 27-APR-10 16:15:00 to 27-APR-10 16:18:00 (EST-5)
Location: ATLANTA
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

The public observed penny-sized hail in downtown Atlanta and on the east side of Atlanta near Little Five Points.  Most of the hail was pea size.

Hail in DE KALB, GEORGIA
From 27-APR-10 16:23:00 to 27-APR-10 16:27:00 (EST-5)
Location: DRUID HILLS
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

The public observed penny-sized hail near East Lake in west central DeKalb county.  Most of the hail was pea size.

Thunderstorm Wind in JOHNSON, GEORGIA
From 27-APR-10 07:00:00 to 27-APR-10 07:05:00 (EST-5)
Location: WRIGHTSVILLE
Magnitude: 50.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Emergency Manager

The Johnson County Emergency Management Director reported that at least seven trees were down between Wrightsville and Kite.  Two trees fell on and destroyed a batting cage on private property in Wrightsville.  A tree in Kite fell on an unoccupied vehicle.  Most of the downed trees were around Wrightsville.  Power was out in much of the county for about two hours.

Thunderstorm Wind in COWETA, GEORGIA
From 27-APR-10 16:30:00 to 27-APR-10 17:00:00 (EST-5)
Location: SARGENT
Magnitude: 50.00 EG
Property damage: 25.00K
Crop damage: 0.00K
Reported by: Newspaper

The Times Herald of Newnan reported that strong winds from showers and isolated thunderstorms blew down a number of trees and several power lines across the county.  A home on Fifth Street near downtown sustained minor damage when a large tree fell on the structure.  The roof and guttering on the back of the home was damaged.  Power was out in the Newnan area for nearly an hour.

Hail in COBB, GEORGIA
From 27-APR-10 16:09:00 to 27-APR-10 16:13:00 (EST-5)
Location: SMYRNA
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

The public observed penny-sized hail just east and southeast of Smyrna, especially near the intersection of Interstate-75 and Interstate-285.  Most of the hail was pea size.

Thunderstorm Wind in FLOYD, GEORGIA
From 27-APR-10 15:28:00 to 27-APR-10 15:45:00 (EST-5)
Location: COOSA
Magnitude: 50.00 EG
Property damage: 100.00K
Crop damage: 0.00K
Reported by: Emergency Manager

The Floyd County Emergency Management Director reported that strong wind gusts associated with a line of showers and isolated thunderstorms blew down at least a dozen trees across the county.  An apartment building and adjacent garage were heavily damaged when a large oak tree fell on the structures. A vehicle was also damaged from a large downed tree limb.  Some power lines were also impacted by the downed trees.