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Weather Forecast Office Aberdeen, SD

Missouri Basin River Forecast Center

Wind Advisory

Hydrograph

River at a Glance

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Probability Information Weekly Chance of Exceeding Levels Chance of Exceeding Levels During Entire Period Short-term Probabilistic Guidance (Experimental)

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

NOTE: River forecasts for this location take into account past precipitation and the precipitation amounts expected approximately 24 hours into the future from the forecast issuance time. NOTE: Forecasts for the Big Sioux River near Castlewood are issued as needed during times of high water, but are not routinely available.

Default Hydrograph Scale to Flood Categories   Return to Area Map

Upstream Gauge

Downstream Gauge

Flood Categories (in feet) Major Flood Stage: 16 Moderate Flood Stage: 11 Flood Stage: 9 Action Stage: 8 Low Stage (in feet): -9999 Historic Crests (1) 13.19 ft on 04/07/1997 (2) 12.39 ft on 03/28/2019 (3) 12.29 ft on 03/23/2011 Show More Historic Crests (P): Preliminary values subject to further review. Recent Crests (1) 10.70 ft on 06/01/2022 (2) 8.37 ft on 04/10/2021 (3) 9.53 ft on 04/03/2020 Show More Recent Crests (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:14 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
18	479th Avenue begins to flood south of Castlewood.
17	Highway 22 begins to flood, as does 181st Street, and water reaches the bottom of the bridge on 459th Avenue south of Castlewood.
16	The river will be about 1 mile wide and many farm buildings around Castlewood will be flooded.
15	The water reaches the bottom of the bridges on Highway 22 and 181st Street.
13	Major agricultural flooding begins south of Castlewood.
11	Significant amounts of pasture and other agricultural lands will be flooded.
10	184th Street begins to flood.
9	Water overtops the culvert on 184th Street and significant agricultural flooding begins north of Castlewood.
8	Minor flooding of low-lying agricultural lands along the river will begin.
Photos (1) Downstream View (2) Upstream View

About This Location

Latitude: 44.731667° N, Longitude: 97.044444° W, Horizontal Datum: NAD27 River Stage Reference Frame Gauge Height Flood Stage Uses NWS stage 0 ft 9 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 1668.48 1677.48 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   Current/Historical Observations: U.S. Geological Survey (USGS) Data and Site Info for Castlewood

Additional Information

Effective on Friday, June 1 2012, the Minor Flood Stage has been changed to 9.0 feet, and the Moderate Flood Stage changed to 11.0 feet. How low could the river get?

Resources

Hydrologic Resources Text Products Past Precipitation Forecast Precipitation River Forecast Centers River Stage Summary Upper Missouri River Basin Monitoring Network Big Sioux Flood Information System Inundation Mapping Locations

Additional Resources Area Hydrographs NWS Precipitation and River Forecasting AHPS Iframes for Developers Mobile iNWS for emergency management Snow Information

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 Aberdeen Weather Forecast Office 824 Brown County 14 South Aberdeen, SD 57401 Ask Questions/Webmaster Page last modified: 2-Nov-2020 7:29 PM Disclaimer Credits Glossary Privacy Policy About Us Career Opportunities