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This probabilistic forecast is issued by the Missouri Basin River Forecast Center.
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About this graph
Forecasts for the Split Rock Creek at Corson are issued as needed during times of high water, but are not routinely available.
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Zoom Level:14
Flood Categories (in feet)
Major Flood Stage: 14
Moderate Flood Stage: 11
Flood Stage: 8.5
Action Stage: 7.5
Low Stage (in feet): -9999

Historic Crests
(1) 19.01 ft on 09/12/2019
(2) 17.58 ft on 05/08/1993
(3) 16.16 ft on 06/17/2014
(4) 15.50 ft on 09/24/2010
(5) 15.00 ft on 04/08/1969
Show More Historic Crests

(P): Preliminary values subject to further review.

Recent Crests
(1) 9.99 ft on 07/06/2022
(2) 3.07 ft on 03/24/2021
(3) 5.08 ft on 03/29/2020
(4) 19.01 ft on 09/12/2019
(5) 11.66 ft on 03/14/2019
Show More Recent Crests

(P): Preliminary values subject to further review.

Low Water Records
Currently none available.
KML Image
Gauge LocationGauge Map Marker
 Disclaimer
Latitude/Longitude Disclaimer: The gauge location shown in the above map is the approximate location based on the latitude/longitude coordinates provided to the NWS by the gauge owner.
Flood Impacts & Photos Collapse
If you notice any errors in the below information, please contact our Webmaster
20 260th St begins to flood west of the bridge.
19 Water reaches the bottom of the bridge on McHardy Rd.
16 McHardy Rd may begin to flood.
14 Highway 11 north of Corson begins to flood.
12.5 The athletic fields at Pioneer Park begin to flood.
11 The nursery near the mouth of Split Rock Creek begins flooding if the Big Sioux River is high enough to cause a backwater effect. Highway 11 north of Highway 42 can be flooded if Beaver Creek flows are also high.
9 The parking lot at the racetrack may be flooded and the lower portions of McHardy Park begins to flood.
8.5 Flooding of the lower lying agricultural land begins.
5.5 Portions of the short walking trail in McHardy Park begins to flood.
Photos
(1) Downstream View (8/24/2023)
(2) Upstream View (8/24/2023)

Other Real-time and/or Archive Data Sources:
Additional Information Collapse
How low could the river get?
Collaborative Agencies Collapse
The National Weather Service prepares its forecasts and other services in collaboration with agencies like the US Geological Survey, US Bureau of Reclamation, US Army Corps of Engineers, Natural Resource Conservation Service, National Park Service, ALERT Users Group, Bureau of Indian Affairs, and many state and local emergency managers across the country. For details, please click here.
NWS Information
National Weather Service
Sioux Falls Weather Forecast Office
26 Weather Lane
Sioux Falls, SD 57104-0198
(605) 330-4247
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