A cold front and an upper-level trough caused showers and thunderstorms to develop. Some thunderstorms were severe due to stronger winds aloft and an unstable atmosphere.

Thunderstorm Wind in SHENANDOAH, VIRGINIA
From 11-AUG-17 15:06:00 to 11-AUG-17 15:06:00 (EST-5)
Location: READUS
Magnitude: 50.00 EG
Reported by: 911 Call Center

A tree fell onto power lines along Swover Creek Road and Corner Road.

Thunderstorm Wind in WARREN, VIRGINIA
From 11-AUG-17 15:38:00 to 11-AUG-17 15:38:00 (EST-5)
Location: LIMETON
Magnitude: 50.00 EG
Reported by: Fire Department/Rescue

A tree fell onto power lines blocking Stonewall Jackson Highway around the 5900 block. Trees were down in the 6000 block of Stonewall Jackson Highway.

Thunderstorm Wind in WARREN, VIRGINIA
From 11-AUG-17 16:05:00 to 11-AUG-17 16:05:00 (EST-5)
Location: BROWNTOWN
Magnitude: 50.00 EG
Reported by: Law Enforcement

Two trees were down near the intersection of Browntown Road and Brogans Lane.

Thunderstorm Wind in FAUQUIER, VIRGINIA
From 11-AUG-17 16:46:00 to 11-AUG-17 16:46:00 (EST-5)
Location: ADA
Magnitude: 50.00 EG
Reported by: 911 Call Center

A tree was down near Moreland Road and Ramey Road.

Thunderstorm Wind in FAUQUIER, VIRGINIA
From 11-AUG-17 16:57:00 to 11-AUG-17 16:57:00 (EST-5)
Location: BETHEL
Magnitude: 50.00 EG
Reported by: 911 Call Center

A downed tree was near James Madison Highway and Merry Oaks Road.

Thunderstorm Wind in FAUQUIER, VIRGINIA
From 11-AUG-17 16:58:00 to 11-AUG-17 16:58:00 (EST-5)
Location: MARSHALL
Magnitude: 50.00 EG
Reported by: Emergency Manager

Four inch diameter limbs were down on Carters Run Road.

Thunderstorm Wind in FAUQUIER, VIRGINIA
From 11-AUG-17 17:01:00 to 11-AUG-17 17:01:00 (EST-5)
Location: MARSHALL
Magnitude: 50.00 EG
Reported by: 911 Call Center

A downed tree was near Free State Road and Crest Hill Road.

Thunderstorm Wind in FAUQUIER, VIRGINIA
From 11-AUG-17 17:02:00 to 11-AUG-17 17:02:00 (EST-5)
Location: MARSHALL
Magnitude: 50.00 EG
Reported by: 911 Call Center

A downed tree was near Winchester Road near Carters Run Road.

Thunderstorm Wind in FAUQUIER, VIRGINIA
From 11-AUG-17 17:12:00 to 11-AUG-17 17:12:00 (EST-5)
Location: BROAD RUN
Magnitude: 50.00 EG
Reported by: 911 Call Center

A tree was down on a car along Interstate 66 near mile marker 36.1.

Thunderstorm Wind in PRINCE WILLIAM, VIRGINIA
From 11-AUG-17 17:12:00 to 11-AUG-17 17:12:00 (EST-5)
Location: BEVERLY MILLS
Magnitude: 50.00 EG
Reported by: 911 Call Center

Multiple trees were down along John Marshall Highway.

Thunderstorm Wind in MANASSAS (C), VIRGINIA
From 11-AUG-17 18:05:00 to 11-AUG-17 18:05:00 (EST-5)
Location: MANASSAS
Magnitude: 50.00 EG
Reported by: 911 Call Center

A tree fell into a house along the 6800 Block of Saint Paul Drive.

Thunderstorm Wind in PRINCE WILLIAM, VIRGINIA
From 11-AUG-17 17:46:00 to 11-AUG-17 17:46:00 (EST-5)
Location: HAYMARKET
Magnitude: 50.00 EG
Reported by: 911 Call Center

A tree fell into a house along the 5900 Block of Spout Spring Court.

Thunderstorm Wind in PRINCE WILLIAM, VIRGINIA
From 11-AUG-17 18:09:00 to 11-AUG-17 18:09:00 (EST-5)
Location: BRISTOW
Magnitude: 50.00 EG
Reported by: 911 Call Center

A tree was down along power lines near Nokesville Road and Bristow Road.

Thunderstorm Wind in PRINCE WILLIAM, VIRGINIA
From 11-AUG-17 18:14:00 to 11-AUG-17 18:14:00 (EST-5)
Location: BUCKHALL
Magnitude: 52.00 EG
Reported by: Public

Multiple trees were knocked over and uprooted with a few snapped in half along Blandsford Drive.

Thunderstorm Wind in PRINCE WILLIAM, VIRGINIA
From 11-AUG-17 18:14:00 to 11-AUG-17 18:14:00 (EST-5)
Location: LIMSTRONG
Magnitude: 50.00 EG
Reported by: 911 Call Center

Piney Avenue was blocked due to downed trees.

Tornado in FAUQUIER, VIRGINIA
From 11-AUG-17 17:08:00 to 11-AUG-17 17:10:00 (EST-5)
Location: BROAD RUN
Tornado F-scale: EF0
Reported by: NWS Storm Survey

Numerous trees were uprooted and large branches snapped along a
1.2-mile long path that paralleled John Marshall Highway just to
its south. Some trees fell on power lines and homes. The tornado
touched down as the circulation crossed Blantyre Road between
Trapp Branch Road and Georgetown Road, then tracked east and
lifted two minutes later shortly after crossing Beverlys Mill
Road a quarter mile south of John Marshall Highway.
KLWX Doppler Radar and FAA Terminal Doppler Radars showed a
rotating supercell with a classic hook echo signature crossing
these areas between 608 and 610 PM. Tree damage showed a
convergent signature, implying rotation reached the ground.