South Canyon near Rapid City, SD
River level and flood forecast · Pennington County
Normal3.6 ftas of Mon 1:45 PM
The river is 2.4 ft below flood stage (6 ft).
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 | 7 ft |
| Moderate flood stage | 6.5 ft |
| Flood stage | 6 ft |
| Action stage | 4.5 ft |
| Record crest (May 17, 2023) | 5.84 ft |
What floods at each level
From the National Weather Service, highest first.
- 7 ftMajor flood stage. Extensive flooding along Nemo Road and Echo Drive.
- 6.5 ftModerate flood stage. Some inundation of structures are possible. Flooding on Nemo Road and Echo Drive.
- 6 ftMinor flood stage. Culverts above the gage along Nemo Road are filled with water and water runs over Echo Drive and Nemo Road.
- 5.5 ftWater runs through yards and driveways.
- 4.5 ftAction stage. Low lying areas along the creek and road begin to flood.
Highest crests on record
- 5.84 ft — May 17, 2023
- 5.12 ft — July 21, 2018
- 4.96 ft — May 28, 2019
- 4.7 ft — August 17, 2007
- 4.64 ft — July 15, 2001
Recent crests: 4.62 ft (October 12, 2023) · 5.84 ft (May 17, 2023) · 4.16 ft (July 10, 2022) · 4.38 ft (May 23, 2021) · 4.41 ft (June 4, 2020)
Up and down the river, and nearby
- DownstreamRapid Creek at Founders Park, SD
- Wild Irishman Gulch near Rapid City, SD
- Rapid Creek above Canyon Lake near Rapid City, SD
- Boxelder Creek near Rapid City, SD
- Rapid Creek above Victoria Creek near Rapid City, SD
- Rapid Creek at Big Bend, SD
- Rapid Creek above Johnson Siding, SD
- Victoria Creek below Victoria Dam nr Rapid City, SD
Not an official source. River levels, forecasts, flood stages and impacts are from the National Weather Service (ECHS2); flow from the U.S. Geological Survey. Readings are provisional. In a flood, follow your local officials and the NWS at weather.gov.