Roanoke River at Glenvar
Flood levels
Official flood levels at this gauge: action stage begins at 7.5 ft; minor flooding begins at 9.0 ft; moderate flooding begins at 14.0 ft; major flooding begins at 16.0 ft.
| Action stage | 7.5 ft |
|---|---|
| Minor flooding | 9.0 ft |
| Moderate flooding | 14.0 ft |
| Major flooding | 16.0 ft |
Highest recorded crests
- 17.7 ft on Apr 21, 1992 (historic crest)
- 17.6 ft on Feb 22, 2003 (historic crest)
- 17.4 ft on Sep 28, 2004 (historic crest)
- 17.1 ft on Oct 12, 2018 (historic crest)
What the water does
National Weather Service impact statements for this gauge, in the Weather Service's own words.
| 9.0 ft | Minor flooding along right bank near the gage. |
|---|---|
| 10.0 ft | West River Road (Route 639) about 3/4 mile upstream from gage begins to flood. |
| 11.5 ft | Southwest River Road begins to flood upstream from gage. |
| 12.5 ft | Bohon Hollow Road bridge (Route 734) about 1 mile upstream from gage is overtopped. |
| 14.0 ft | Water reaches concrete diversion wall on residential property across from the gage. |
| 17.0 ft | Water begins overflowing left bank in vicinity of the gage. |
Forecast office: NWS Blacksburg · River Forecast Center: Southeast River Forecast Center.
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