A backdoor cold front made its way southward across the Piedmont during the evening, supported aloft by an upper level disturbance passing across the central Appalachians in the otherwise upper level ridging environment covering much of the southeast and mid-Atlantic states.  The cold front and disturbance provided increased instability, allowing strong to severe thunderstorms to develop in the very warm moist air south of the cold front.

Thunderstorm Wind in ROANOKE, VIRGINIA
From 04-SEP-15 16:35:00 to 04-SEP-15 16:35:00 (EST-5)
Location: ROANOKE CITY
Magnitude: 50.00 EG
Property damage: 1.50K
Crop damage: 0.00K
Reported by: Public

Power lines were blown down on Salem Avenue.

Hail in FLOYD, VIRGINIA
From 04-SEP-15 17:09:00 to 04-SEP-15 17:09:00 (EST-5)
Location: CARTHAGE
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Thunderstorm Wind in PATRICK, VIRGINIA
From 04-SEP-15 17:55:00 to 04-SEP-15 17:55:00 (EST-5)
Location: GRUZES STORE
Magnitude: 55.00 EG
Property damage: 2.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Multiple trees were blown down on Woolwine Highway.

Thunderstorm Wind in ROANOKE, VIRGINIA
From 04-SEP-15 15:50:00 to 04-SEP-15 15:50:00 (EST-5)
Location: MEDLEY
Magnitude: 55.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Several trees were blown down by thunderstorm winds on Cove Road.

Hail in ALLEGHANY, VIRGINIA
From 04-SEP-15 14:15:00 to 04-SEP-15 14:15:00 (EST-5)
Location: COVINGTON CITY
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in CAMPBELL, VIRGINIA
From 04-SEP-15 14:20:00 to 04-SEP-15 14:20:00 (EST-5)
Location: SPRING MILLS
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in HALIFAX, VIRGINIA
From 04-SEP-15 15:20:00 to 04-SEP-15 15:20:00 (EST-5)
Location: HALIFAX
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in ROANOKE, VIRGINIA
From 04-SEP-15 15:50:00 to 04-SEP-15 15:50:00 (EST-5)
Location: BONSACK
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in ROANOKE, VIRGINIA
From 04-SEP-15 15:58:00 to 04-SEP-15 15:58:00 (EST-5)
Location: ROANOKE CITY
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in PATRICK, VIRGINIA
From 04-SEP-15 16:00:00 to 04-SEP-15 16:00:00 (EST-5)
Location: VESTA
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in BEDFORD, VIRGINIA
From 04-SEP-15 16:05:00 to 04-SEP-15 16:05:00 (EST-5)
Location: BEDFORD CITY
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in ROANOKE, VIRGINIA
From 04-SEP-15 16:18:00 to 04-SEP-15 16:18:00 (EST-5)
Location: SUGAR LOAF
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in BOTETOURT, VIRGINIA
From 04-SEP-15 16:20:00 to 04-SEP-15 16:20:00 (EST-5)
Location: WEBSTER
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in ROANOKE, VIRGINIA
From 04-SEP-15 16:21:00 to 04-SEP-15 16:21:00 (EST-5)
Location: CAVE SPG
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Thunderstorm Wind in ROANOKE, VIRGINIA
From 04-SEP-15 16:25:00 to 04-SEP-15 16:25:00 (EST-5)
Location: LINDENWOOD
Magnitude: 50.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Law Enforcement

A tree was blown down onto a house along Ramada Road.

Hail in BEDFORD, VIRGINIA
From 04-SEP-15 16:40:00 to 04-SEP-15 16:40:00 (EST-5)
Location: GOODVIEW
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in ROANOKE, VIRGINIA
From 04-SEP-15 16:07:00 to 04-SEP-15 16:10:00 (EST-5)
Location: CAVE SPG
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Quarter-size hail fell from Mud Lick Road through Grandin Road.