A broad upper level trough with a slow-moving frontal boundary extending from Texas to upstate New York brought an extended period of mainly light to moderate rainfall that began on the afternoon of the 10th and persisted well into the evening of the 11th.  Storm total rainfall amounts ranged from 1.5 to 3 inches across southeast West Virginia with the highest totals in western Mercer County. Egeria IFLOWS (EGRW2) had the highest 48-hour gauge total with 3.26 inches ending at 7 AM EST on the 12th of which 2.74 inches fell in the 24-hours ending at 7 AM on the 11th. The flooding that resulted was not really of the flash type but was more gradual.

Flood in MERCER, WEST VIRGINIA
From 11-FEB-18 00:18:00 to 11-FEB-18 18:00:00 (EST-5)
Location: COALDALE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: 911 Call Center

Flooding was reported from several locations across Mercer County. Portions of Route 10 in near Lake Bottom in the town of Lashmeet were closed due to high water. In the town of Princeton Ingleside Road and Stafford Drive were reported closed due to high water. The  Bluestone River flooded along much of its course through the county. The IFLOWS gauge on the Bluestone River at Spanishburg crested at 13.7 feet (Minor flood stage - 12 ft.) during the evening of February 11th. Portions of Route 19 were flooded by the river to a depth of several feet. This was the highest crest since March 2015 at the Spanishburg gauge. Further downstream on the Bluestone River at Pipestem (PIPW2) the the crest of 11.88 feet (Minor flood stage - 10 ft.) was also the highest since 2015.

Heavy Rain in SUMMERS, WEST VIRGINIA
From 10-FEB-18 07:00:00 to 11-FEB-18 07:00:00 (EST-5)
Location: BELLEPOINT
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

The COOP site at Bluestone Lake (BLUW2) measured 2.13 inches of rain for the 24-hour period ending 12z (7 AM) on February 11. This was the highest 1-day total for any February day since records began there in 1944.

Heavy Rain in SUMMERS, WEST VIRGINIA
From 10-FEB-18 07:00:00 to 11-FEB-18 07:00:00 (EST-5)
Location: ALDERSON
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

The COOP site at Alderson (ALDW2) measured 1.90 inches of rain for the 24-hour period ending 12z (7 AM) on February 11. This was the 3rd highest 1-day total for any February day since records began there in 1946.

Flood in MONROE, WEST VIRGINIA
From 10-FEB-18 22:00:00 to 11-FEB-18 14:00:00 (EST-5)
Location: RED SULPHUR SPGS
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

Indian Creek near Red Sulphur Springs crested at 10.11 feet (Minor Flood stage - 8 ft.) early on the 11th. At least one road was closed due the flooding.

Heavy Rain in GREENBRIER, WEST VIRGINIA
From 10-FEB-18 07:00:00 to 11-FEB-18 07:00:00 (EST-5)
Location: WHITE SULPHUR SPGS
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

The COOP site at White Sulphur Springs (WSUW2) measured 1.72 inches of rain for the 24-hour period ending 12z (7 AM) on February 11. This was the 3rd highest 1-day total for any February day since continuous records began there in 1922 (with sporadic data back to 1888).

Flood in GREENBRIER, WEST VIRGINIA
From 10-FEB-18 18:00:00 to 11-FEB-18 18:00:00 (EST-5)
Location: CHARMCO
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Two water rescues were made after people drove into high water in the county. Several streams were reported to be out of banks including Muddy Creek, Little Sewell Creek and Anthony Creek. There were a number of other reports of flooding from around Greenbrier County. Tunnels at Monroe Draft, Harts Run and Tuckahoe Road were flooded. Route 60 in Hines, Snake Run Road in the Blue Sulphur Springs area and Blue Bend Road near Alvon all had reports of high water. Four people were evacuated due to concerns of water around their house.