Roanoke River at Glenvar, VA
River level and flood forecast · Roanoke County
Normal4.1 ftas of Mon 4:15 PM
The river is 4.9 ft below flood stage (9 ft).
Flow: 654 cubic feet per second (USGS).
The last 7 days and the forecast
NWS forecast issued Sun, Dec 31, 7 PM. Forecasts change as rain falls and as upstream water arrives.
Flood stages
| Major flood stage | 16 ft |
| Moderate flood stage | 14 ft |
| Flood stage | 9 ft |
| Action stage | 7.5 ft |
| Record crest (April 21, 1992) | 17.73 ft |
What floods at each level
From the National Weather Service, highest first.
- 17 ftWater begins overflowing left bank in vicinity of the gage.
- 14 ftWater reaches concrete diversion wall on residential property across from the gage.
- 12.5 ftBohon Hollow Road bridge (Route 734) about 1 mile upstream from gage is overtopped.
- 11.5 ftSouthwest River Road begins to flood upstream from gage.
- 10 ftWest River Road (Route 639) about 3/4 mile upstream from gage begins to flood.
- 9 ftMinor flooding along right bank near the gage.
Highest crests on record
- 17.73 ft — April 21, 1992
- 17.61 ft — February 22, 2003
- 17.43 ft — September 28, 2004
- 17.1 ft — October 12, 2018
- 16.53 ft — September 30, 2015
Recent crests: 15.26 ft (February 16, 2025) · 12.9 ft (September 27, 2024) · 8.6 ft (January 10, 2024) · 8.8 ft (May 29, 2023) · 7.4 ft (May 28, 2022)
Up and down the river, and nearby
Not an official source. River levels, forecasts, flood stages and impacts are from the National Weather Service (GNVV2); flow from the U.S. Geological Survey. Readings are provisional. In a flood, follow your local officials and the NWS at weather.gov.