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Weather Forecast Office Rapid City, SD

Missouri Basin River Forecast Center

Wind Chill Advisory

Hydrograph

River at a Glance

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

NOTE: Gauge reading may be affected by ice. NOTE: Forecasts are not available for the Hat Creek near Edgemont. Only observed stages are available for this point.

Default Hydrograph Scale to Flood Categories   Return to Area Map

Flood Categories (in feet) Major Flood Stage: 30 Moderate Flood Stage: 21 Flood Stage: 16 Action Stage: 15 Low Stage (in feet): -9999 Historic Crests (1) 21.19 ft on 06/06/2015 (2) 17.28 ft on 05/17/1991 (3) 15.40 ft on 04/23/2000 (4) 14.94 ft on 07/16/1993 (5) 14.67 ft on 05/29/2019 Show More Historic Crests (P): Preliminary values subject to further review. Recent Crests (1) 9.00 ft on 04/08/2021 (2) 9.15 ft on 03/08/2020 (3) 9.79 ft on 03/03/2020 (4) 14.67 ft on 05/29/2019 (5) 13.54 ft on 05/31/2018 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

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30	Major Flood Stage. Water approaches the bottom of Highway 71 bridge. Extensive flooding along the creek with inundation of structures and roads.
21	Moderate Flood Stage. River spreads out and floods agricultural land. Some inundation of structures and roads near the creek are possible.
20	Right bank will begin to overflow. Minor flooding along the creek continues.
16	Flood Stage. Left bank will begin to overflow causing minor flooding along the creek.
15	Action stage. Flooding of low lying areas along the creek.
Photos (1) Looking upstream (2) Looking downstream

About This Location

Latitude: 43.240000° N, Longitude: 103.588252° W, Horizontal Datum: NAD83/WGS84 River Stage Reference Frame Gauge Height Flood Stage Uses NWS stage 0 ft 16 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 3297.31 3303.31 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 Edgemont

Resources

Hydrologic Resources Text Products Past Precipitation Forecast Precipitation River Forecast Centers River Stage Summary Missouri Basin River Forecast Center NOHRSC - Snow Survey Drought Monitor MADIS-HADS River Stage Data Turn Around Don't Drown Inundation Mapping Locations

Additional Resources Area Hydrographs NWS Precipitation and River Forecasting AHPS Iframes for Developers Mobile iNWS for emergency management Flood Event Archive Spring Flood Outlook

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