A potent upper-level low and associated area of surface low pressure approached the region from southwest on the 15th. Strong forcing for ascent and ample moisture transport in advance of the upper level low led to a prolonged period of rain across the region. Eventually low pressure transferred to the coast before precipitation wound down on the 16th. Widespread rainfall totals of 2-4 inches were observed across the area.

Flood in BERKELEY, WEST VIRGINIA
From 16-DEC-18 00:41:00 to 16-DEC-18 06:34:00 (EST-5)
Location: INWOOD
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

The stream gage on Mill Creek at Bunker Hill exceeded the 4.3 foot flood stage during the indicated period. Henshaw Road was flooded where it passes under interstate 81. The peak level of 4.75 feet occurred at 3:30 AM on December 16th.

Flood in JEFFERSON, WEST VIRGINIA
From 16-DEC-18 10:38:00 to 18-DEC-18 00:10:00 (EST-5)
Location: MILLVILLE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

The stream gage on the Shenandoah River at Millville exceeded the 10 foot flood stage during the indicated period. Portions of Bloomery Road, John Rissler Road, Wilt Road as well as a few rural roads in Clarke County, VA experienced flooding. Moulton Park, the Millville boat launch, and portions of the Cool Spring Battlefield also flooded. The peak level of 12.80 feet occurred at 9:30 PM on December 16th.

Flood in BERKELEY, WEST VIRGINIA
From 16-DEC-18 00:26:00 to 17-DEC-18 00:34:00 (EST-5)
Location: TOMAHAWK
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

The stream gage on Back Creek at Jones Springs exceeded the 11 foot flood stage during the indicated period. Dry Run Road, Daisy Lane and pastureland near the creek were flooded. The peak level of 14.77 feet occurred at 2:15 PM on December 16th.

Flood in MINERAL, WEST VIRGINIA
From 15-DEC-18 12:47:00 to 17-DEC-18 03:02:00 (EST-5)
Location: FT ASHBY
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

The stream gage on Patterson Creek at Headsville exceeded the 9 foot flood stage during the indicated period. Dry Run Road and Daisy Lane were flooded, and water began to cover pastureland near the creek. The peak level of 10.52 feet occurred at 10:45 PM on December 15th.

Flood in BERKELEY, WEST VIRGINIA
From 16-DEC-18 10:33:00 to 18-DEC-18 02:45:00 (EST-5)
Location: BEDINGTON
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

The river gage on the Potomac River at Shepherdstown exceeded the 15 foot flood stage during the indicated period. River Road was completely flooded in low spots between Shepherdstown and Harpers Ferry. Water covered the pedestrian bridge to the Shepherdstown boat ramp and significant portions of the C&O canal were flooded. Water approached homes on the West Virginia side of the river near Shepherdstown and impacts to roads and structures were also observed on the Maryland side of the river. The peak level of 22.11 feet occurred at 3:00 AM on December 17th.

Flood in HAMPSHIRE, WEST VIRGINIA
From 16-DEC-18 04:30:00 to 16-DEC-18 20:10:00 (EST-5)
Location: MILLESON
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

The stream gage on the South Branch Potomac River at Springfield exceeded the 15 foot flood stage during the indicated period. Flooding was observed along Mileson Mill Road (County Route 28/5) and Clarence Taylor Road (Route 3/7). A significant portion of the meadowlands near the river, as well as the boat launch ramp were also flooded. The peak level of 16.25 feet occurred at 10:30 AM on December 16th.

Flood in JEFFERSON, WEST VIRGINIA
From 16-DEC-18 19:41:00 to 17-DEC-18 11:26:00 (EST-5)
Location: BOLIVAR
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

The river gage on the Potomac River at Harpers Ferry exceeded the 18 foot flood stage during the indicated period. The C&O Canal towpath on the Maryland side of the river experienced flooding. Floodwaters also covered much of the Hamilton Street area, as well as the employee parking lot in historic Harpers Ferry. The peak level of 18.81 feet occurred at 2:30 AM on December 17th.

Flood in MINERAL, WEST VIRGINIA
From 15-DEC-18 12:48:00 to 15-DEC-18 14:48:00 (EST-5)
Location: HEADSVILLE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Intersection of Headsville Road and Patterson Creek Road closed due to flooding.

Flood in HAMPSHIRE, WEST VIRGINIA
From 15-DEC-18 20:29:00 to 15-DEC-18 22:29:00 (EST-5)
Location: YELLOW SPG
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: State Official

Capon River Road was closed due to flooding.

Flood in MORGAN, WEST VIRGINIA
From 15-DEC-18 23:54:00 to 17-DEC-18 06:12:00 (EST-5)
Location: LARGENT
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

The stream gage on the Cacapon River at Great Cacapon exceeded the 9 foot flood stage during the indicated period. Rock Ford Road flooded in multiple locations, including flowing completely over the low water bridge.  Flooding was also observed along Constant Run Road, Kilgore Road and Running Waters Way. The peak level of 13.05 feet occurred at 10:15 AM.

Flood in BERKELEY, WEST VIRGINIA
From 15-DEC-18 16:00:00 to 15-DEC-18 18:00:00 (EST-5)
Location: INWOOD
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: State Official

Henshaw Road (500 block) closed due to flooding along Mill Creek.

Flood in BERKELEY, WEST VIRGINIA
From 15-DEC-18 21:41:00 to 17-DEC-18 05:46:00 (EST-5)
Location: MARTINSBURG
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

The river gage on the Opequon Creek at Martinsburg exceeded the 12.5 foot flood stage during the indicated period. This pushed the creek well out of its banks, leading to flooding in the nearby lowlands. Fields and backyards near the creek flooded, along with many local roads. Golf Course Road (County Road 36) was flooded near the Van Metre Ford Pedestrian Bridge. Several other roads experienced flooding, including Grapevine Road, Douglas Grove Road, and Paynes Ford Road. Backwater flooding also occurred on small tributaries, including Tuscarora Creek. The peak level of 13.52 feet occurred at 3:30 PM on December 16th.