North Fork Grand River (SD) near White Butte, SD
River level and flood forecast · Perkins County
Normal-0.0 ftas of Mon 1:45 PM
The river is 10.0 ft below flood stage (10 ft).
Flow: 0 cubic feet per second (USGS).
The last 7 days and the forecast
NWS forecast issued Sun, Dec 31, 5 PM. Forecasts change as rain falls and as upstream water arrives.
Flood stages
| Major flood stage | 12 ft |
| Moderate flood stage | 11 ft |
| Flood stage | 10 ft |
| Action stage | 8 ft |
| Record crest (April 8, 1952) | 17 ft |
What floods at each level
From the National Weather Service, highest first.
- 12 ftMajor flood stage. Extensive inundation of agricultural land and some roads along the Grand River may be impacted.
- 11 ftModerate Flood Stage. Some inundation of roads and agricultural land along the Grand River.
- 10.5 ftRight bank will overflow.
- 10 ftFlood Stage. Flooding of agricultural land.
- 8 ftAction stage. Low lying areas along the Grand River begin to flood.
- 7 ftLeft bank will overflow.
Highest crests on record
- 17 ft — April 8, 1952
- 13.3 ft — April 13, 2009
- 12.08 ft — March 2, 1978
- 11.63 ft — March 28, 1978
- 11 ft — March 21, 1997
Recent crests: 4.4 ft (May 24, 2024) · 3.22 ft (April 13, 2023) · 4.86 ft (March 29, 2023) · 3.88 ft (April 28, 2022) · 1.64 ft (May 24, 2021)
Up and down the river, and nearby
Not an official source. River levels, forecasts, flood stages and impacts are from the National Weather Service (GRAS2); flow from the U.S. Geological Survey. Readings are provisional. In a flood, follow your local officials and the NWS at weather.gov.