A cold front crossed the region during the afternoon and evening hours at the same as an upper-level disturbance approached the region. A southerly flow out ahead of the boundary brought increased moisture and that combined with heating from sunshine led to unstable conditions by late in the day. Shear also increased late in the day in response to the approaching upper-level disturbance. This combination of instability, forcing, and wind shear led to showers and thunderstorms, some of which became severe.

Thunderstorm Wind in PRINCE WILLIAM, VIRGINIA
From 02-SEP-19 16:09:00 to 02-SEP-19 16:09:00 (EST-5)
Location: HICKORY GROVE
Magnitude: 70.00 EG
Reported by: Emergency Manager

A large tree was blown down onto a house in the 2500 block of Youngs Drive. Large trees were also blown down at Tiffany Lane and Mountain Road. Dozens of trees were blown down near the intersection of Hunton Lane and Mountain Road. Garage doors were also blown in.

Thunderstorm Wind in FAIRFAX, VIRGINIA
From 02-SEP-19 16:18:00 to 02-SEP-19 16:18:00 (EST-5)
Location: BULL RUN
Magnitude: 50.00 EG
Reported by: State Official

Trees were blown down in the area of VA-658 and VA-859.

Thunderstorm Wind in PRINCE WILLIAM, VIRGINIA
From 02-SEP-19 17:25:00 to 02-SEP-19 17:25:00 (EST-5)
Location: TRIANGLE
Magnitude: 50.00 EG
Reported by: State Official

A tree was blown down along US-1 near the Marine Corps Museum.

Thunderstorm Wind in PRINCE WILLIAM, VIRGINIA
From 02-SEP-19 17:25:00 to 02-SEP-19 17:25:00 (EST-5)
Location: DALE CITY
Magnitude: 50.00 EG
Reported by: State Official

Trees were blown down near the intersection of Powells Creek Boulevard and McGuffeys Trail.

Thunderstorm Wind in KING GEORGE, VIRGINIA
From 02-SEP-19 18:25:00 to 02-SEP-19 18:25:00 (EST-5)
Location: HOOES
Magnitude: 50.00 EG
Reported by: State Official

A tree was blown down near the intersection of Owens Drive and Chatham Drive.

Hail in LOUDOUN, VIRGINIA
From 02-SEP-19 15:50:00 to 02-SEP-19 15:50:00 (EST-5)
Location: MIDDLEBURG
Magnitude: 0.88 
Reported by: Public

Hail in PRINCE WILLIAM, VIRGINIA
From 02-SEP-19 17:20:00 to 02-SEP-19 17:20:00 (EST-5)
Location: WOODBRIDGE
Magnitude: 0.75 
Reported by: Public

Thunderstorm Wind in LOUDOUN, VIRGINIA
From 02-SEP-19 15:15:00 to 02-SEP-19 15:15:00 (EST-5)
Location: NORTH FORK
Magnitude: 50.00 EG
Reported by: State Official

A tree was blown down at the intersection of Saint Louis Road and Chamblin Mill Road.

Thunderstorm Wind in LOUDOUN, VIRGINIA
From 02-SEP-19 15:57:00 to 02-SEP-19 15:57:00 (EST-5)
Location: DOVER
Magnitude: 50.00 EG
Reported by: Public

Large tree limbs up to six inches in diameter were blown down near US-50 between Middleburg and Aldie.

Thunderstorm Wind in FREDERICK, VIRGINIA
From 02-SEP-19 14:30:00 to 02-SEP-19 14:30:00 (EST-5)
Location: GREEN SPG
Magnitude: 50.00 EG
Reported by: Public

A tree was blown down at a residence on VA-682 Glaze Orchard Road. Several trees were also blown down onto wires on VA-671 Green Spring Road.

Thunderstorm Wind in FAUQUIER, VIRGINIA
From 02-SEP-19 15:53:00 to 02-SEP-19 15:53:00 (EST-5)
Location: HALFWAY
Magnitude: 50.00 EG
Reported by: Public

Two trees and multiple large branches were blown down near Hickory Tree Farm.