North Mayo River near Spencer, VA
River level and flood forecast · Henry County
Normal2.4 ftas of Mon 7:45 PM
The river is 5.6 ft below flood stage (8 ft).
Flow: 257 cubic feet per second (USGS).
The last 7 days and the forecast
NWS forecast issued Mon, Jan 1, 12 AM. Forecasts change as rain falls and as upstream water arrives.
Flood stages
| Major flood stage | 14 ft |
| Moderate flood stage | 11 ft |
| Flood stage | 8 ft |
| Action stage | 7 ft |
| Record crest (October 9, 1947) | 15.8 ft |
What floods at each level
From the National Weather Service, highest first.
- 8 ftMinor lowland flooding is the only impact at flood stage.
Highest crests on record
- 15.8 ft — October 9, 1947
- 14.33 ft — October 19, 1937
- 14.22 ft — August 18, 1985
- 13.7 ft — September 22, 1979
- 13.41 ft — June 22, 1972
Recent crests: 8.58 ft (January 10, 2024) · 8.94 ft (November 12, 2020) · 8.48 ft (October 30, 2020) · 7.16 ft (August 22, 2020) · 11.22 ft (May 22, 2020)
Up and down the river, and nearby
Not an official source. River levels, forecasts, flood stages and impacts are from the National Weather Service (NMRV2); flow from the U.S. Geological Survey. Readings are provisional. In a flood, follow your local officials and the NWS at weather.gov.