Rivers in West Virginia

Greenbrier River at Alderson

Summers County, West VirginiaNWS ALDW2USGS 03183500Blacksburg office

Below flood stage
2.78ftStage

Observed Wed, Sep 23, 2:45 PM EDT

Flood stage
14.00 ft
Forecast crest
3.00 ftThu, Sep 24, 2:00 PM EDT
Record crest
24.33 ft1996

Open the live map with the river flood outlook

Flood stages and impacts

CategoryStage
Major flood19.00 ft
Moderate flood16.00 ft
Minor flood14.00 ft
Action9.00 ft
  1. 30.00 ftRailroad tracks on left bank flooded.
  2. 26.50 ftBridge floor at gage is flooded.
  3. 19.00 ftSignificant flooding in town of Alderson.
  4. 17.00 ftFlooding of roads in Alderson and some buildings affected.
  5. 15.00 ftFarm land along river bank near gage is flooded.
  6. 13.50 ftAdditional low spots dowmstream from Alderson along Route 12/3 are flooded.
  7. 12.00 ftFlooding begins along portions of Route 3 downstream from Alderson near Eagle Branch.
  8. 11.50 ftWater impacts campers and campsites along Crook Lane in Pence Springs.

Flood outlook

Chance of flooding, September to November

CategoryChance
Minor flooding19%
Moderate flooding11%
Major flooding6%

The three-month chances are the River Forecast Centers’ long-range flood outlook, issued September 22, 2026.

Crest history

70 crests on NOAA’s list since 1953.

#DateStage
1January 20, 199624.33 ft
2November 5, 198523.95 ft
3June 24, 201622.00 ft
4December 27, 197320.30 ft
5March 7, 196719.90 ft
6April 5, 197719.80 ft
7January 26, 201018.72 ft
8March 12, 196317.95 ft
9February 26, 197217.90 ft
10March 27, 197817.70 ft
11March 2, 202117.53 ft
12February 22, 195317.43 ft
13December 31, 196917.30 ft
14August 20, 196917.10 ft
15February 23, 200317.03 ft
16November 20, 200316.88 ft
17March 3, 200716.80 ft
18March 6, 195516.76 ft
19February 10, 199416.69 ft
20October 10, 197616.60 ft
21December 2, 199616.05 ft
22March 15, 196715.80 ft
23January 31, 201315.74 ft
24January 16, 199515.68 ft
25March 5, 196415.60 ft

Most recent crests

  • February 21, 2026: 11.42 ft
  • February 16, 2025: 13.90 ft
  • February 7, 2025: 15.31 ft
  • February 1, 2025: 13.80 ft
  • April 4, 2024: 9.12 ft
  • January 29, 2024: 11.53 ft
  • January 10, 2024: 11.04 ft
  • February 18, 2023: 14.69 ft
  • July 28, 2022: 6.99 ft
  • May 8, 2022: 11.41 ft

Nearby

Upstream, downstream and the gauges around this one.

What this means

Forecasts by the Ohio River Forecast Center. Forecasts are issued routinely year-round. River forecasts for this location take into account past precipitation and the precipitation amounts expected approximately 48 hours into the future from the forecast issuance time.

Sources

Stage, flood stages, impacts and crest history from NOAA’s National Water Prediction Service. Streamflow and the daily record from the U.S. Geological Survey.