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Weather Forecast Office Sioux Falls, SD

Missouri Basin River Forecast Center

Hydrograph

River at a Glance

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Printable Image About this graph Tabular Data (UTC) Tabular Data (CDT) Datum: NAVD88 Metadata

NOTE: No forecasts are available for this location NOTE: Forecasts are not available for the Big Sioux River above Dell Rapids. Only observed stages are available for this point.

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Upstream Gauge

Downstream Gauge

Flood Categories (in feet) Major Flood Stage: 1486 Moderate Flood Stage: 1484 Flood Stage: 1481 Action Stage: 1479.5 Low Stage (in feet): 0 Historic Crests (1) 1,490.00 ft on 09/13/2019 (2) 1,487.53 ft on 03/24/2019 (P) (3) 1,479.29 ft on 04/01/2020 (P): Preliminary values subject to further review. Recent Crests (1) 1,479.29 ft on 04/01/2020 (2) 1,490.00 ft on 09/13/2019 (3) 1,487.53 ft on 03/24/2019 (P) (P): Preliminary values subject to further review. Low Water Records Currently none available. For more information on your flood risk go to www.floodsmart.gov. Show FEMA's National Flood Hazard Layers FEMA's National Flood Hazard Layers not showing? Why aren't the FEMA National Flood Hazard Layers showing on the ESRI Map? Possible reasons: There are no FEMA National Flood Hazard Layers for the location which you are viewing on ESRI Maps. The FEMA Web Mapping Service (WMS) is down. Note: Your zoom level may have changed. ESRI's zoom levels must be between 14 and 16 to show National Flood Hazard layers.

Zoom Level:16 Legend FEMA Layer Gauge Location 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

If you notice any errors in the below information, please contact our Webmaster
1487	244th Avenue and Jasper Street will begin flooding, and other roads in Dell Rapids will be flooded.
1485	the City Park and the ball fields on the left bank in Dell Rapids begin to flood, and some farm houses could be surrounded by water.
1481	agricultural flooding upstream of Dell Rapids begins, and the City Park and ball fields on the right bank in Dell Rapids will begin flooding.
1479.5	the bike trail at the City Park begins to flood.

About This Location

Latitude: 43.825793° N, Longitude: 96.670580° W, Horizontal Datum: NAD27 River Stage Reference Frame Gauge Height Flood Stage Uses NWS stage 0 ft 1481 ft Interpreting hydrographs and NWS watch, warnings, and forecasts, and inundation maps Vertical Datum Elevation (gauge height = 0) Elevation (gauge height = flood stage) Elevation information source NAVD88 0.00 1481.00 Survey grade GPS equipment, FEMA flood plain maps, newer USGS topographic maps NGVD 29 Not Available Not Available Older USGS topographic maps, NGVD29 benchmarks MSL Not Available Not Available Older USGS topographic maps, MSL benchmarks Other Not Available Not Available

Resources

Hydrologic Resources Text Products Past Precipitation Forecast Precipitation River Forecast Centers River Stage Summary Missouri Basin River Forecast Center North Central River Forecast Center NOHRSC Snow Information Drought Monitor USGS HADS River Stage Data Inundation Mapping Locations Precipitation Frequency Data FEMA Region VIII Flood Information Big Sioux Flood Information System Iowa Flood Center Minnesota DNR ___

Additional Resources Area Hydrographs NWS Precipitation and River Forecasting AHPS Iframes for Developers Mobile iNWS for emergency management SDSU Climate and Weather SDSU Drought Dashboard Iowa State University Soil Temperatures Iowa DNR State Beach Water Quality Daily High Temperature Map Daily Low Temperature Map Daily Precipitation Map Daily Snowfall Map Daily Snow Depth Map Report on July 29-30, 2010 heavy rain/flood event in Jerauld County

Collaborative Agencies 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 Ask Questions/Webmaster Page last modified: 2-Nov-2020 7:29 PM Disclaimer Credits Glossary Privacy Policy About Us Career Opportunities