Cheyenne River at Redshirt, SD
River level and flood forecast · Custer County
Normal9.5 ftas of Mon 1:45 PM
The river is 10.5 ft below flood stage (20 ft).
Flow: 53 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 | 22 ft |
| Moderate flood stage | 21 ft |
| Flood stage | 20 ft |
| Action stage | 19 ft |
| Record crest (June 8, 2015) | 19.7 ft |
What floods at each level
From the National Weather Service, highest first.
- 22 ftMajor Flood Stage. Extensive flooding along the Cheyenne River with inundation of structures and roads.
- 21 ftModerate Flood Stage. Flooding of agricultural land around Wasta. Some inundation of structures and roads are possible.
- 20 ftFlood stage. Minor flooding of agricultural land along the Cheyenne River.
- 19 ftLowland flooding may begin along the river.
- 18 ftWater begins to reach the trees along the river bank.
- 13.3 ftBecause the channel is braided, water will begin to flow into the other channels of the river about 500 ft. downstream of the bridge.
Highest crests on record
- 19.7 ft — June 8, 2015
- 17.65 ft — March 23, 2019
- 17.48 ft — April 23, 2000
- 17.33 ft — May 27, 2010
- 17.18 ft — June 15, 1999
Recent crests: 14.08 ft (October 12, 2023) · 13.6 ft (July 31, 2023) · 12.76 ft (June 14, 2022) · 11.71 ft (May 24, 2021) · 12.88 ft (March 16, 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 (CHRS2); flow from the U.S. Geological Survey. Readings are provisional. In a flood, follow your local officials and the NWS at weather.gov.