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Weather Forecast Office Rapid City, 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 (MST) Datum: NAVD88 Metadata

NOTE: Gauge reading may be affected by ice. NOTE: Forecasts are not available for the Cheyenne River near Buffalo Gap. Only observed stages are available for this point.

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Upstream Gauge

Downstream Gauge

Flood Categories (in feet) Major Flood Stage: 15 Moderate Flood Stage: 14 Flood Stage: 13 Action Stage: 12 Low Stage (in feet): -9999 Historic Crests (1) 13.15 ft on 05/21/1978 (2) 12.92 ft on 06/08/2015 (3) 11.44 ft on 05/25/1971 (4) 10.72 ft on 03/23/2019 (5) 9.89 ft on 07/21/1969 Show More Historic Crests (P): Preliminary values subject to further review. Recent Crests (1) 3.98 ft on 05/24/2021 (2) 5.65 ft on 03/11/2020 (3) 10.72 ft on 03/23/2019 (4) 9.10 ft on 06/01/2018 (5) 3.50 ft on 04/29/2017 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:10 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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15	Major flood stage. Extensive flooding along the creek with inundation of structures and roads.
14	Moderate flood stage. Some inundation of structures and road near the creek are possible.
13	Flood stage. Out buildings along the river may be flooded.
12	Action stage. Water begins to approach out buildings near the gage.
10.5	Water covers the fence line along the river.

About This Location

Latitude: 43.501964° N, Longitude: 103.074410° W, Horizontal Datum: NAD83/WGS84 River Stage Reference Frame Gauge Height Flood Stage Uses NWS stage 0 ft 13 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 2812.85 2825.85 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 Buffalo Gap

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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