An upper level trough moved southeastward from the Great Lakes and into the Mid-Atlantic states during the day of August 15th. At the surface, a boundary also moved southeastward from Ohio and into the region. With building instability, scattered showers and thunderstorms developed across the higher elevations in the mid afternoon hours, and then moved eastward during the late afternoon and evening. With relatively strong westerly to west-northwesterly flow aloft, deep layer shear increased and that, combined with the instability, led to some thunderstorms becoming strong to locally severe.

Thunderstorm Wind in MADISON, VIRGINIA
From 15-AUG-19 02:30:00 to 15-AUG-19 02:30:00 (EST-5)
Location: BRIGHTWOOD
Magnitude: 50.00 EG
Reported by: State Official

A tree was blown down at the intersection of VA-629 and VA-699.

Thunderstorm Wind in CULPEPER, VIRGINIA
From 15-AUG-19 02:46:00 to 15-AUG-19 02:46:00 (EST-5)
Location: MITCHELLS
Magnitude: 50.00 EG
Reported by: State Official

A tree was blown down near the 8300 block of North James Madison Highway.

Thunderstorm Wind in LOUDOUN, VIRGINIA
From 15-AUG-19 13:20:00 to 15-AUG-19 13:20:00 (EST-5)
Location: SUNNY BANK
Magnitude: 50.00 EG
Reported by: State Official

Both lanes of US-50 were shut down at Four Chimneys Lane due to downed power lines and trees from strong winds.

Thunderstorm Wind in LOUDOUN, VIRGINIA
From 15-AUG-19 13:25:00 to 15-AUG-19 13:25:00 (EST-5)
Location: DOVER
Magnitude: 50.00 EG
Reported by: NWS Employee

A tree was blown down blocking the driveway to Briar Patch Bed and Breakfast.

Thunderstorm Wind in LOUDOUN, VIRGINIA
From 15-AUG-19 13:45:00 to 15-AUG-19 13:45:00 (EST-5)
Location: ALDIE
Magnitude: 50.00 EG
Reported by: Broadcast Media

A tree was blown down onto US-15 near Braddock Road.

Thunderstorm Wind in FAIRFAX, VIRGINIA
From 15-AUG-19 14:25:00 to 15-AUG-19 14:25:00 (EST-5)
Location: CHANTILLY
Magnitude: 50.00 EG
Reported by: State Official

A tree was blown down on VA-28 Sully Road near Willard Road. Several other trees were also blown down in the immediate area.

Thunderstorm Wind in FAIRFAX, VIRGINIA
From 15-AUG-19 14:40:00 to 15-AUG-19 14:40:00 (EST-5)
Location: CENTREVILLE
Magnitude: 50.00 EG
Reported by: State Official

A tree was blown down in the 6600 block of Briar Croft Road.

Thunderstorm Wind in SHENANDOAH, VIRGINIA
From 15-AUG-19 16:50:00 to 15-AUG-19 16:50:00 (EST-5)
Location: GEORGETOWN
Magnitude: 61.00 EG
Reported by: State Official

Multiple trees were reported down in the area of Turkey Knob Road and Wissler Road. Damage to barns was also reported along Old Valley Road near Daniel Gray Drive.

Thunderstorm Wind in SHENANDOAH, VIRGINIA
From 15-AUG-19 16:55:00 to 15-AUG-19 16:55:00 (EST-5)
Location: HAWKINSTOWN
Magnitude: 61.00 EG
Reported by: State Official

Reports were received of multiple barns damaged along Old Valley Pike near Red Banks Road.

Thunderstorm Wind in PAGE, VIRGINIA
From 15-AUG-19 17:30:00 to 15-AUG-19 17:30:00 (EST-5)
Location: KIMBALL
Magnitude: 50.00 EG
Reported by: State Official

A few trees were blown down near Luray.

Thunderstorm Wind in PAGE, VIRGINIA
From 15-AUG-19 18:04:00 to 15-AUG-19 18:04:00 (EST-5)
Location: COMERTOWN
Magnitude: 50.00 EG
Reported by: State Official

Trees were blown down in Comertown and Fleeburg.

Thunderstorm Wind in MADISON, VIRGINIA
From 15-AUG-19 18:55:00 to 15-AUG-19 18:55:00 (EST-5)
Location: NOVUM
Magnitude: 50.00 EG
Reported by: Emergency Manager

A tree was blown down on West Hoover Road.

Thunderstorm Wind in MADISON, VIRGINIA
From 15-AUG-19 19:09:00 to 15-AUG-19 19:09:00 (EST-5)
Location: ARODA
Magnitude: 50.00 EG
Reported by: State Official

A tree was blown down on Carpenter Mill Road near Tom Johnson Road.

Thunderstorm Wind in MADISON, VIRGINIA
From 15-AUG-19 19:17:00 to 15-AUG-19 19:17:00 (EST-5)
Location: OAKPARK
Magnitude: 50.00 EG
Reported by: Emergency Manager

A tree was blown down on Beahm Town Road.

Thunderstorm Wind in ORANGE, VIRGINIA
From 15-AUG-19 19:47:00 to 15-AUG-19 19:47:00 (EST-5)
Location: ORANGE
Magnitude: 61.00 EG
Reported by: Public

Trees were blown down onto a house in 100 block of Scott Street. Another tree was also blown down in the 400 block of East Main Street.

Thunderstorm Wind in ORANGE, VIRGINIA
From 15-AUG-19 19:59:00 to 15-AUG-19 19:59:00 (EST-5)
Location: ORANGE CO ARPT
Magnitude: 61.00 EG
Reported by: State Official

Trees were blown down onto a house in the 18000 block of Constitution Highway. Trees were also blown down on May Lane along VA-20 near Orange. Additionally, about 30 trees were blown down across central Orange County.

Thunderstorm Wind in ALBEMARLE, VIRGINIA
From 15-AUG-19 20:21:00 to 15-AUG-19 20:21:00 (EST-5)
Location: CASH CORNER
Magnitude: 50.00 EG
Reported by: State Official

A tree was blown down onto wires in the 1800 block of Saint John Road.

Thunderstorm Wind in SPOTSYLVANIA, VIRGINIA
From 15-AUG-19 20:35:00 to 15-AUG-19 20:35:00 (EST-5)
Location: HOLLADAY
Magnitude: 50.00 EG
Reported by: Trained Spotter

Large (5 to 6 inch in diameter) tree limbs were blown down in the 6000 block of EDS Road.

Thunderstorm Wind in FAIRFAX, VIRGINIA
From 15-AUG-19 14:19:00 to 15-AUG-19 14:19:00 (EST-5)
Location: (IAD)DULLES INTL ARP
Magnitude: 57.00 MG
Reported by: ASOS

A 57-knot (66 mph) wind gust was measured at Washington Dulles International Airport.

Hail in SHENANDOAH, VIRGINIA
From 15-AUG-19 16:55:00 to 15-AUG-19 16:55:00 (EST-5)
Location: MT JACKSON
Magnitude: 1.00 
Reported by: Public

Quarter sized hail (1 inch in diameter) was reported at a convenience store in Mount Jackson.

Hail in AUGUSTA, VIRGINIA
From 15-AUG-19 17:54:00 to 15-AUG-19 17:54:00 (EST-5)
Location: GROTTOES
Magnitude: 1.75 
Reported by: State Official

Golf ball sized hail (1.75 in diameter) was reported near Grottoes.

Hail in AUGUSTA, VIRGINIA
From 15-AUG-19 18:00:00 to 15-AUG-19 18:00:00 (EST-5)
Location: FT DEFIANCE
Magnitude: 1.00 
Reported by: Public

Quarter-sized hail (1 in diameter) was reported northeast of Verona.

Hail in AUGUSTA, VIRGINIA
From 15-AUG-19 18:07:00 to 15-AUG-19 18:07:00 (EST-5)
Location: NEW HOPE
Magnitude: 1.25 
Reported by: Public

Half dollar sized hail (1.25 in diameter) was reported north of Hermitage.