A deep upper-level trough and strong short wave moved through the region during the day. Strongly diffluent upper-level flow combined with a sharp cold front and steep mid-level lapse rates to produce widespread severe thunderstorms across north Georgia with numerous reports of large hail and damaging winds.

Thunderstorm Wind in GILMER, GEORGIA
From 20-APR-15 04:50:00 to 20-APR-15 04:55:00 (EST-5)
Location: CHERRY LOG
Magnitude: 50.00 EG
Property damage: 4.00K
Reported by: Emergency Manager

The Gilmer County Emergency Manager reported trees and power lines blown down in Cherry Log.

Hail in JACKSON, GEORGIA
From 20-APR-15 14:10:00 to 20-APR-15 14:15:00 (EST-5)
Location: BRASELTON
Magnitude: 0.88 
Reported by: Emergency Manager

The Jackson County Emergency Manager reported nickel size hail covering the ground to a depth of 1 to 2 inches in the Braselton area.

Thunderstorm Wind in MADISON, GEORGIA
From 20-APR-15 15:40:00 to 20-APR-15 15:50:00 (EST-5)
Location: DANIELSVILLE
Magnitude: 50.00 EG
Property damage: 0.50K
Reported by: 911 Call Center

The Madison County 911 center reported trees down on the southwest side of Danielsville.

Thunderstorm Wind in MADISON, GEORGIA
From 20-APR-15 16:04:00 to 20-APR-15 16:10:00 (EST-5)
Location: COMER
Magnitude: 50.00 EG
Property damage: 0.50K
Reported by: 911 Call Center

The Madison County 911 center reported trees down in Comer.

Hail in COBB, GEORGIA
From 20-APR-15 13:08:00 to 20-APR-15 13:15:00 (EST-5)
Location: MARIETTA
Magnitude: 1.00 
Reported by: Public

The public reported quarter size hail.

Hail in DAWSON, GEORGIA
From 20-APR-15 11:51:00 to 20-APR-15 11:58:00 (EST-5)
Location: DAWSONVILLE
Magnitude: 0.75 
Reported by: Emergency Manager

The Dawson County Emergency Manager reported penny size hail at the Emergency Operation Center in Dawsonville.

Thunderstorm Wind in FULTON, GEORGIA
From 20-APR-15 13:18:00 to 20-APR-15 13:38:00 (EST-5)
Location: ROSWELL
Magnitude: 60.00 EG
Property damage: 10.00K
Reported by: Emergency Manager

The Fulton County Emergency Manager relayed numerous reports of trees down from north Sandy Springs to Roswell, Alpharetta and Johns Creek. This included a tree on a house on Softpine Trail, a tree blocking the roadway at Spaulding Drive and Ball Creek Way and a tree on a house in Roswell.

Hail in GWINNETT, GEORGIA
From 20-APR-15 13:57:00 to 20-APR-15 14:07:00 (EST-5)
Location: SUWANEE
Magnitude: 1.00 
Reported by: Trained Spotter

A trained spotter reported quarter size hail near McGinnis Ferry Road.

Hail in JACKSON, GEORGIA
From 20-APR-15 14:38:00 to 20-APR-15 14:45:00 (EST-5)
Location: RED STONE
Magnitude: 1.75 
Property damage: 646.00K
Reported by: Emergency Manager

The Jackson County Emergency Manager reported golf ball size hail on Storey Porter Road.

Hail in MADISON, GEORGIA
From 20-APR-15 16:20:00 to 20-APR-15 16:25:00 (EST-5)
Location: ROSS
Magnitude: 0.75 
Reported by: 911 Call Center

The Madison County 911 center reported penny size hail.

Hail in FULTON, GEORGIA
From 20-APR-15 13:20:00 to 20-APR-15 13:25:00 (EST-5)
Location: ROSWELL
Magnitude: 1.75 
Property damage: 4.00M
Reported by: Public

The public reported golf ball size hail at Georgia Highway 400 and Holcomb Bridge Road.

Hail in FULTON, GEORGIA
From 20-APR-15 13:30:00 to 20-APR-15 13:35:00 (EST-5)
Location: ALPHARETTA
Magnitude: 1.00 
Reported by: Trained Spotter

A trained spotter reported quarter size hail.

Hail in FULTON, GEORGIA
From 20-APR-15 13:40:00 to 20-APR-15 13:45:00 (EST-5)
Location: ALPHARETTA
Magnitude: 1.00 
Reported by: Amateur Radio

An amateur radio operator reported quarter size hail on Mansell Road.

Hail in FULTON, GEORGIA
From 20-APR-15 13:49:00 to 20-APR-15 13:55:00 (EST-5)
Location: ALPHARETTA
Magnitude: 1.25 
Reported by: Storm Chaser

A storm chaser reported half dollar size hail.

Thunderstorm Wind in COBB, GEORGIA
From 20-APR-15 13:10:00 to 20-APR-15 13:30:00 (EST-5)
Location: KENNESAW
Magnitude: 55.00 EG
Property damage: 1.00K
Reported by: 911 Call Center

The Cobb County 911 center reported several trees down from Kennesaw to Smyrna, including one down on Cooper Lake Road.

Thunderstorm Wind in BARROW, GEORGIA
From 20-APR-15 14:16:00 to 20-APR-15 14:26:00 (EST-5)
Location: WINDER
Magnitude: 50.00 EG
Property damage: 10.00K
Reported by: Emergency Manager

The Barrow County Emergency Manager reported a large tree uprooted on Candler Street that fell on a home. Additional smaller trees were also blown down and hail of an unknown size fell in the Winder area.

Hail in CHEROKEE, GEORGIA
From 20-APR-15 12:30:00 to 20-APR-15 12:35:00 (EST-5)
Location: SOUTH CANTON
Magnitude: 0.75 
Reported by: Emergency Manager

The Cherokee County Emergency Manager reported penny size hail near Canton.

Hail in CHEROKEE, GEORGIA
From 20-APR-15 12:35:00 to 20-APR-15 12:40:00 (EST-5)
Location: ORANGE
Magnitude: 0.75 
Reported by: Public

The public reported penny size hail near Macedonia.

Thunderstorm Wind in CLARKE, GEORGIA
From 20-APR-15 16:00:00 to 20-APR-15 16:05:00 (EST-5)
Location: WHITEHALL
Magnitude: 45.00 EG
Property damage: 0.25K
Reported by: 911 Call Center

The Clarke County 911 center reported a tree down on Beaver Trail just off Red Fox Run.

Hail in COBB, GEORGIA
From 20-APR-15 12:55:00 to 20-APR-15 13:05:00 (EST-5)
Location: DUE WEST
Magnitude: 1.00 
Reported by: Public

The public reported quarter size hail at the West Cobb Diner at the intersection of Dallas Highway and Barrett Parkway.

Hail in COBB, GEORGIA
From 20-APR-15 13:03:00 to 20-APR-15 13:10:00 (EST-5)
Location: ELIZABETH
Magnitude: 1.25 
Reported by: Trained Spotter

A trained spotter reported half dollar size hail.

Hail in COBB, GEORGIA
From 20-APR-15 13:05:00 to 20-APR-15 13:12:00 (EST-5)
Location: MARIETTA
Magnitude: 1.25 
Reported by: Trained Spotter

A trained spotter reported half dollar size hail.