Rapid Creek above Johnson Siding, SD

River level and flood forecast · Pennington County

No current readingas of Sun 5 PM

The National Weather Service has no current reading for this gauge, so its flood status isn't known right now.

The last 7 days and the forecast

234567TueWedThuFriSatSunMonAction 4.2 ftFlood 4.5 ftModerate 6 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 stage9 ft
Moderate flood stage6 ft
Flood stage4.5 ft
Action stage4.2 ft
Record crest (June 24, 2015)4.88 ft

What floods at each level

From the National Weather Service, highest first.

  • 9 ftMajor Flood Stage. Water begins to flow over the intersection of Forest Rd and Sonquist Lane.
  • 8.1 ftPrivate property upstream from the bridge is completely flooded.
  • 8 ftWater reaches the bottom of the bridge along Sonquist Lane.
  • 6 ftModerate Flood Stage.
  • 5 ftPrivate property along the river is flooded.
  • 4.5 ftMinor Flood Stage. Private property directly along the river begins to flood.
  • 4.2 ftAction Stage. Water begins to flow over lowest banks along the creek.

Highest crests on record

  1. 4.88 ft — June 24, 2015
  2. 4.65 ft — May 30, 2011
  3. 4.62 ft — June 24, 1998
  4. 4.54 ft — May 31, 2019
  5. 4.37 ft — June 19, 1999

Recent crests: 3.22 ft (July 31, 2024) · 3.96 ft (July 3, 2023) · 3.45 ft (June 6, 2022) · 3.54 ft (May 4, 2021) · 3.95 ft (April 26, 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 (JHNS2); flow from the U.S. Geological Survey. Readings are provisional. In a flood, follow your local officials and the NWS at weather.gov.