Keyapaha River near Keyapaha, SD
River level and flood forecast · Tripp County
Normal4.4 ftas of Mon 3 PM
The river is 5.6 ft below flood stage (10 ft).
Flow: 20 cubic feet per second (USGS).
The last 7 days and the forecast
NWS forecast issued Sun, Dec 31, 6 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 1, 1952) | 13.7 ft |
What floods at each level
From the National Weather Service, highest first.
- 10 ftFlood stage. Flooding of yards and agricultural land along the river.
Highest crests on record
- 13.7 ft — April 1, 1952
- 11.36 ft — March 23, 2019
- 11.29 ft — February 18, 1997
- 9.73 ft — March 12, 2011
- 9.48 ft — May 11, 1999
Recent crests: 7.13 ft (October 15, 2023) · 7.97 ft (June 10, 2023) · 5.63 ft (May 2, 2022) · 5.68 ft (February 11, 2022) · 5.85 ft (March 21, 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 (PAHS2); flow from the U.S. Geological Survey. Readings are provisional. In a flood, follow your local officials and the NWS at weather.gov.