Low pressure passed by to the west toward the Great Lakes. The warm front associated with the low moved through the area while the cold front associated with the low approached from the west. There was enough lift associated with the warm front to combine with a warm and humid atmosphere, resulting in showers and thunderstorms. Rainfall was heavy at times which resulted in flooding.

Flood in FAIRFAX, VIRGINIA
From 21-AUG-18 12:05:00 to 21-AUG-18 14:05:00 (EST-5)
Location: ILDA
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Prosperity Road was closed due to high water near the intersection with Morningside Road. Prosperity Avenue was closed due to flooding at Morningside Road.

Flood in GREENE, VIRGINIA
From 21-AUG-18 08:40:00 to 21-AUG-18 08:40:00 (EST-5)
Location: GEER
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

River Road was closed due to flooding between Octonia Road and Dead End. Mutton Hollow road was closed due to flooding between Dyke Road and Turkey Ridge Road. Octonia Road was closed due to flooding between Ford Avenue and River road.

Flood in RAPPAHANNOCK, VIRGINIA
From 21-AUG-18 10:20:00 to 21-AUG-18 12:20:00 (EST-5)
Location: SLATE MILLS
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

Route 604 as closed due to flooding near Slate MIlls Road. Major Brown Road was closed due to flooding near Slate Mills Road.

Flood in RAPPAHANNOCK, VIRGINIA
From 21-AUG-18 10:20:00 to 21-AUG-18 12:20:00 (EST-5)
Location: SLATE MILLS
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

Pohams Ford Road was closed due to flooding near Slate Mills Road.

Flood in RAPPAHANNOCK, VIRGINIA
From 21-AUG-18 10:46:00 to 21-AUG-18 12:46:00 (EST-5)
Location: LAUREL MILLS
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: 911 Call Center

Laurel  Mills road was close due to flooding near Richmond Road.

Flood in MADISON, VIRGINIA
From 21-AUG-18 07:24:00 to 21-AUG-18 09:24:00 (EST-5)
Location: DUET
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

Duet Road was closed due to flooding between Whippoorwill Road and Dead End.

Flood in MADISON, VIRGINIA
From 21-AUG-18 07:24:00 to 21-AUG-18 09:24:00 (EST-5)
Location: SYRIA
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

Weakley Hollow Road was closed due to flooding between Etlan Road and Route 643.

Flood in FAUQUIER, VIRGINIA
From 21-AUG-18 18:29:00 to 21-AUG-18 18:29:00 (EST-5)
Location: BETHEL
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: 911 Call Center

Bear Wallow Road was closed due to flooding of Cattail Branch.

Flood in FAUQUIER, VIRGINIA
From 21-AUG-18 13:09:00 to 21-AUG-18 15:09:00 (EST-5)
Location: DUDIE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

Route 690 at Cannonball Gate Road was closed due to high water.

Flood in FAUQUIER, VIRGINIA
From 21-AUG-18 13:18:00 to 21-AUG-18 15:18:00 (EST-5)
Location: WARRENTON
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: 911 Call Center

The road was closed at the bridge at the 7600 block of Frytown Road.

Flood in PRINCE WILLIAM, VIRGINIA
From 21-AUG-18 13:25:00 to 21-AUG-18 15:25:00 (EST-5)
Location: GAINESVILLE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Wellington Road was closed due to high water at the intersection with Cellar Door Drive.

Flood in FAUQUIER, VIRGINIA
From 21-AUG-18 18:29:00 to 21-AUG-18 20:29:00 (EST-5)
Location: WARRENTON
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: 911 Call Center

Frytown Road Bridge over Cedar Run was under water.

Flood in FAIRFAX, VIRGINIA
From 21-AUG-18 22:24:00 to 22-AUG-18 00:24:00 (EST-5)
Location: HERNDON
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

Seneca Road was closed due to flooding near Kentland Drive.

Flood in LOUDOUN, VIRGINIA
From 21-AUG-18 23:20:00 to 22-AUG-18 01:20:00 (EST-5)
Location: TAYLORSTOWN
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

Loyalty Road was closed near Bald Hill Road due to a washout from flooding.

Flood in LOUDOUN, VIRGINIA
From 21-AUG-18 23:22:00 to 22-AUG-18 01:22:00 (EST-5)
Location: LEESBURG
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

Edwards Ferry Road was closed due to flooding near Cattail Branch.

Flood in PRINCE WILLIAM, VIRGINIA
From 21-AUG-18 16:13:00 to 21-AUG-18 23:58:00 (EST-5)
Location: BRISTOW
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

The Virginia Tech stream gage on Broad Run near Bristow exceeded the 9.5 foot flood stage during the indicated period. The peak level of 13.42 feet occurred at 8:56pm EST. Piper Lane near the Manassas Airport was flooded.

Flood in PRINCE WILLIAM, VIRGINIA
From 21-AUG-18 18:15:00 to 22-AUG-18 07:31:00 (EST-5)
Location: YORKSHIRE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

The Virginia Tech stream gage on Bull Run near Manassas Park exceeded the 12 foot flood stage during the indicated period. The peak level of 13.54 feet was observed at 3:00am on August 22nd.  Riverside trails were flooded during this event.

Flood in FAUQUIER, VIRGINIA
From 22-AUG-18 04:08:00 to 22-AUG-18 06:08:00 (EST-5)
Location: REMINGTON
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Sumerduck Road was closed due to flooding near Lucky Hill Road.

Flood in LOUDOUN, VIRGINIA
From 21-AUG-18 22:20:00 to 22-AUG-18 02:11:00 (EST-5)
Location: WATERFORD
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

The stream gauge at Waterford indicated that water crested at 9.64 feet, above flood stage of 8 feet. Portions of Route 662 flooded near the creek.

Flood in FAUQUIER, VIRGINIA
From 21-AUG-18 18:29:00 to 21-AUG-18 20:29:00 (EST-5)
Location: DUDIE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: 911 Call Center

Bear Wallow Road was closed due to flooding of Great Run.

Flood in FAUQUIER, VIRGINIA
From 21-AUG-18 18:29:00 to 21-AUG-18 20:29:00 (EST-5)
Location: NEW BALTIMORE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: 911 Call Center

Shepherdstown Road was closed due to flooding of South Run.

Flood in FAUQUIER, VIRGINIA
From 21-AUG-18 18:29:00 to 21-AUG-18 20:29:00 (EST-5)
Location: NEW BALTIMORE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: 911 Call Center

Baldwin Street was closed due to flooding of Mill Run.

Flood in FAUQUIER, VIRGINIA
From 21-AUG-18 18:29:00 to 21-AUG-18 20:29:00 (EST-5)
Location: BETHEL
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: 911 Call Center

Airlie Road was closed due to flooding of Towser Branch.

Flood in FAIRFAX, VIRGINIA
From 21-AUG-18 21:46:00 to 21-AUG-18 23:46:00 (EST-5)
Location: GREAT FALLS
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

Beach Mill Road was closed due to flooding of Jefferson Branch.

Flood in FAIRFAX, VIRGINIA
From 21-AUG-18 13:29:00 to 21-AUG-18 17:45:00 (EST-5)
Location: TREMONT
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Woodburn Road was closed due to high water near the intersection with Spicewood Drive. The USGS stream gage on Accotink Creek exceeded the 9.5 foot flood stage during most of the indicated period. The peak of 10.31 feet occurred at 5:00pm EST.

Flood in CULPEPER, VIRGINIA
From 21-AUG-18 10:20:00 to 21-AUG-18 12:20:00 (EST-5)
Location: BOSTON
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

Reva Road was closed due to flooding near Slate Mills Road.

Flood in FAIRFAX, VIRGINIA
From 21-AUG-18 13:00:00 to 21-AUG-18 15:00:00 (EST-5)
Location: BULL RUN
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Compton Road was closed due to high water under Interstate 66.

Flood in PRINCE WILLIAM, VIRGINIA
From 21-AUG-18 13:10:00 to 21-AUG-18 15:10:00 (EST-5)
Location: WELLINGTON
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Lee Highway was closed due to high water at the intersection with Sudley Road.