Rapid Creek above Canyon Lake near Rapid City, SD

River level and flood forecast · Pennington County

Normal1.7 ftas of Mon 2:25 PM

The river is 5.3 ft below flood stage (7 ft).

Flow: 13 cubic feet per second (USGS).

The last 7 days and the forecast

0246810TueWedThuFriSatSunMonAction 5 ftFlood 7 ftModerate 9 ftNowObserved (ft)NWS forecast

NWS forecast issued Sun, Dec 31, 5 PM. Forecasts change as rain falls and as upstream water arrives.

Flood stages

Major flood stage11 ft
Moderate flood stage9 ft
Flood stage7 ft
Action stage5 ft
Record crest (June 2, 1997)5.46 ft

What floods at each level

From the National Weather Service, highest first.

  • 11 ftMajor Flood Stage. Extensive flooding along Rapid Creek with inundation of structures and roads.
  • 10 ftSmall park near the dog park on the westside of Rapid City will begin to flood.
  • 9 ftModerate flood stage. Flooding continues upstream of Canyon Lake.
  • 7 ftFlood Stage. Flooding will occur around the fish hatchery and Meadowbrook Golf Course.
  • 6.5 ftLow land flooding will begin around the Dark Canyon area.

Highest crests on record

  1. 5.46 ft — June 2, 1997
  2. 5.26 ft — May 28, 2019
  3. 4.5 ft — June 1, 1996
  4. 4.4 ft — June 16, 1999
  5. 4.29 ft — May 21, 2011

Recent crests: 2.38 ft (October 12, 2023) · 3.49 ft (July 8, 2023) · 2.72 ft (June 7, 2022) · 2.79 ft (May 5, 2021) · 3.66 ft (May 3, 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 (CYNS2); flow from the U.S. Geological Survey. Readings are provisional. In a flood, follow your local officials and the NWS at weather.gov.