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Hydrograph River at a Glance Download
Keyapaha River near Keyapaha Stage (ft)Flow (kcfs)Observed: 4.35 ft at 8:30AM Oct 19, 2020Observed: 4.36 ft at 8:45AM Oct 19, 2020Observed: 4.36 ft at 9:00AM Oct 19, 2020Observed: 4.36 ft at 9:15AM Oct 19, 2020Observed: 4.36 ft at 9:30AM Oct 19, 2020Observed: 4.36 ft at 9:45AM Oct 19, 2020Observed: 4.36 ft at 10:00AM Oct 19, 2020Observed: 4.36 ft at 10:15AM Oct 19, 2020Observed: 4.36 ft at 11:16AM Oct 19, 2020Observed: 4.36 ft at 11:30AM Oct 19, 2020Observed: 4.36 ft at 11:31AM Oct 19, 2020Observed: 4.36 ft at 11:45AM Oct 19, 2020Observed: 4.36 ft at 11:46AM Oct 19, 2020Observed: 4.36 ft at 12:00PM Oct 19, 2020Observed: 4.36 ft at 12:01PM Oct 19, 2020Observed: 4.36 ft at 12:15PM Oct 19, 2020Observed: 4.36 ft at 12:30PM Oct 19, 2020Observed: 4.37 ft at 12:45PM Oct 19, 2020Observed: 4.37 ft at 1:00PM Oct 19, 2020Observed: 4.36 ft at 1:15PM Oct 19, 2020Observed: 4.37 ft at 1:30PM Oct 19, 2020Observed: 4.36 ft at 1:45PM Oct 19, 2020Observed: 4.36 ft at 2:00PM Oct 19, 2020Observed: 4.37 ft at 2:15PM Oct 19, 2020Observed: 4.37 ft at 2:30PM Oct 19, 2020Observed: 4.36 ft at 2:45PM Oct 19, 2020Observed: 4.37 ft at 3:00PM Oct 19, 2020Observed: 4.37 ft at 3:15PM Oct 19, 2020Observed: 4.38 ft at 3:30PM Oct 19, 2020Observed: 4.37 ft at 3:45PM Oct 19, 2020Observed: 4.37 ft at 4:00PM Oct 19, 2020Observed: 4.37 ft at 4:15PM Oct 19, 2020Observed: 4.38 ft at 5:30PM Oct 19, 2020Observed: 4.37 ft at 5:45PM Oct 19, 2020Observed: 4.37 ft at 6:00PM Oct 19, 2020Observed: 4.37 ft at 6:15PM Oct 19, 2020Observed: 4.37 ft at 6:30PM Oct 19, 2020Observed: 4.37 ft at 6:45PM Oct 19, 2020Observed: 4.36 ft at 7:00PM Oct 19, 2020Observed: 4.36 ft at 7:15PM Oct 19, 2020Observed: 4.36 ft at 7:16PM Oct 19, 2020Observed: 4.38 ft at 7:30PM Oct 19, 2020Observed: 4.38 ft at 7:31PM Oct 19, 2020Observed: 4.37 ft at 7:45PM Oct 19, 2020Observed: 4.37 ft at 7:46PM Oct 19, 2020Observed: 4.37 ft at 8:00PM Oct 19, 2020Observed: 4.37 ft at 8:01PM Oct 19, 2020Observed: 4.37 ft at 8:15PM Oct 19, 2020Observed: 4.36 ft at 8:30PM Oct 19, 2020Observed: 4.37 ft at 8:45PM Oct 19, 2020Observed: 4.37 ft at 9:00PM Oct 19, 2020Observed: 4.37 ft at 9:15PM Oct 19, 2020Observed: 4.37 ft at 9:30PM Oct 19, 2020Observed: 4.37 ft at 9:45PM Oct 19, 2020Observed: 4.36 ft at 10:00PM Oct 19, 2020Observed: 4.36 ft at 10:15PM Oct 19, 2020Observed: 4.37 ft at 10:30PM Oct 19, 2020Observed: 4.36 ft at 10:45PM Oct 19, 2020Observed: 4.37 ft at 11:00PM Oct 19, 2020Observed: 4.36 ft at 11:15PM Oct 19, 2020Observed: 4.36 ft at 11:30PM Oct 19, 2020Observed: 4.37 ft at 11:45PM Oct 19, 2020Observed: 4.37 ft at 12:00AM Oct 20, 2020Observed: 4.37 ft at 12:15AM Oct 20, 2020Observed: 4.37 ft at 12:30AM Oct 20, 2020Observed: 4.37 ft at 12:45AM Oct 20, 2020Observed: 4.38 ft at 1:00AM Oct 20, 2020Observed: 4.38 ft at 1:15AM Oct 20, 2020Observed: 4.38 ft at 1:30AM Oct 20, 2020Observed: 4.38 ft at 1:45AM Oct 20, 2020Observed: 4.38 ft at 2:00AM Oct 20, 2020Observed: 4.36 ft at 2:15AM Oct 20, 2020Observed: 4.38 ft at 2:30AM Oct 20, 2020Observed: 4.38 ft at 2:45AM Oct 20, 2020Observed: 4.38 ft at 3:00AM Oct 20, 2020Observed: 4.38 ft at 3:15AM Oct 20, 2020Observed: 4.38 ft at 3:16AM Oct 20, 2020Observed: 4.38 ft at 3:30AM Oct 20, 2020Observed: 4.38 ft at 3:31AM Oct 20, 2020Observed: 4.38 ft at 3:45AM Oct 20, 2020Observed: 4.38 ft at 3:46AM Oct 20, 2020Observed: 4.38 ft at 4:00AM Oct 20, 2020Observed: 4.38 ft at 4:01AM Oct 20, 2020Observed: 4.39 ft at 4:15AM Oct 20, 2020Observed: 4.38 ft at 4:30AM Oct 20, 2020Observed: 4.38 ft at 4:45AM Oct 20, 2020Observed: 4.38 ft at 5:00AM Oct 20, 2020Observed: 4.38 ft at 5:15AM Oct 20, 2020Observed: 4.38 ft at 5:30AM Oct 20, 2020Observed: 4.38 ft at 5:45AM Oct 20, 2020Observed: 4.37 ft at 6:00AM Oct 20, 2020Observed: 4.38 ft at 6:15AM Oct 20, 2020Observed: 4.39 ft at 6:30AM Oct 20, 2020Observed: 4.37 ft at 6:45AM Oct 20, 2020Observed: 4.38 ft at 7:00AM Oct 20, 2020Observed: 4.39 ft at 7:15AM Oct 20, 2020Observed: 4.38 ft at 7:30AM Oct 20, 2020Observed: 4.39 ft at 7:45AM Oct 20, 2020Observed: 4.38 ft at 8:00AM Oct 20, 2020Observed: 4.38 ft at 8:15AM Oct 20, 2020Observed: 4.38 ft at 8:30AM Oct 20, 2020Observed: 4.38 ft at 8:45AM Oct 20, 2020Observed: 4.38 ft at 9:00AM Oct 20, 2020Observed: 4.38 ft at 9:15AM Oct 20, 2020Observed: 4.39 ft at 9:30AM Oct 20, 2020Observed: 4.38 ft at 9:45AM Oct 20, 2020Observed: 4.38 ft at 10:00AM Oct 20, 2020Observed: 4.38 ft at 10:15AM Oct 20, 2020Observed: 4.38 ft at 10:30AM Oct 20, 2020Observed: 4.38 ft at 10:45AM Oct 20, 2020Observed: 4.38 ft at 11:00AM Oct 20, 2020Observed: 4.38 ft at 11:15AM Oct 20, 2020Observed: 4.38 ft at 11:30AM Oct 20, 2020Observed: 4.39 ft at 11:45AM Oct 20, 2020Observed: 4.38 ft at 12:00PM Oct 20, 2020Observed: 4.39 ft at 12:15PM Oct 20, 2020Observed: 4.38 ft at 12:30PM Oct 20, 2020Observed: 4.38 ft at 12:45PM Oct 20, 2020Observed: 4.38 ft at 1:00PM Oct 20, 2020Observed: 4.39 ft at 1:15PM Oct 20, 2020Observed: 4.38 ft at 1:30PM Oct 20, 2020Observed: 4.39 ft at 1:45PM Oct 20, 2020Observed: 4.38 ft at 2:00PM Oct 20, 2020Observed: 4.38 ft at 2:15PM Oct 20, 2020Observed: 4.38 ft at 2:30PM Oct 20, 2020Observed: 4.39 ft at 2:45PM Oct 20, 2020Observed: 4.38 ft at 3:00PM Oct 20, 2020Observed: 4.38 ft at 3:15PM Oct 20, 2020Observed: 4.38 ft at 3:30PM Oct 20, 2020Observed: 4.39 ft at 3:45PM Oct 20, 2020Observed: 4.39 ft at 4:00PM Oct 20, 2020Observed: 4.39 ft at 4:15PM Oct 20, 2020Observed: 4.39 ft at 4:30PM Oct 20, 2020Observed: 4.38 ft at 4:45PM Oct 20, 2020Observed: 4.39 ft at 5:00PM Oct 20, 2020Observed: 4.38 ft at 5:15PM Oct 20, 2020Observed: 4.38 ft at 5:30PM Oct 20, 2020Observed: 4.39 ft at 5:45PM Oct 20, 2020Observed: 4.38 ft at 6:00PM Oct 20, 2020Observed: 4.38 ft at 6:15PM Oct 20, 2020Observed: 4.39 ft at 6:30PM Oct 20, 2020Observed: 4.39 ft at 6:45PM Oct 20, 2020Observed: 4.38 ft at 7:00PM Oct 20, 2020Observed: 4.38 ft at 7:15PM Oct 20, 2020Observed: 4.38 ft at 7:16PM Oct 20, 2020Observed: 4.38 ft at 7:30PM Oct 20, 2020Observed: 4.38 ft at 7:31PM Oct 20, 2020Observed: 4.38 ft at 7:45PM Oct 20, 2020Observed: 4.38 ft at 7:46PM Oct 20, 2020Observed: 4.38 ft at 8:00PM Oct 20, 2020Observed: 4.38 ft at 8:01PM Oct 20, 2020Observed: 4.38 ft at 8:15PM Oct 20, 2020Observed: 4.38 ft at 8:30PM Oct 20, 2020Observed: 4.38 ft at 8:45PM Oct 20, 2020Observed: 4.38 ft at 9:00PM Oct 20, 2020Observed: 4.38 ft at 9:15PM Oct 20, 2020Observed: 4.38 ft at 9:30PM Oct 20, 2020Observed: 4.38 ft at 9:45PM Oct 20, 2020Observed: 4.38 ft at 10:00PM Oct 20, 2020Observed: 4.38 ft at 10:15PM Oct 20, 2020Observed: 4.38 ft at 10:30PM Oct 20, 2020Observed: 4.38 ft at 10:45PM Oct 20, 2020Observed: 4.38 ft at 11:00PM Oct 20, 2020Observed: 4.38 ft at 11:15PM Oct 20, 2020Observed: 4.38 ft at 11:30PM Oct 20, 2020Observed: 4.37 ft at 11:45PM Oct 20, 2020Observed: 4.38 ft at 12:00AM Oct 21, 2020Observed: 4.38 ft at 12:15AM Oct 21, 2020Observed: 4.38 ft at 12:30AM Oct 21, 2020Observed: 4.38 ft at 12:45AM Oct 21, 2020Observed: 4.37 ft at 1:00AM Oct 21, 2020Observed: 4.38 ft at 1:15AM Oct 21, 2020Observed: 4.37 ft at 1:30AM Oct 21, 2020Observed: 4.38 ft at 1:45AM Oct 21, 2020Observed: 4.38 ft at 2:00AM Oct 21, 2020Observed: 4.38 ft at 2:15AM Oct 21, 2020Observed: 4.38 ft at 2:30AM Oct 21, 2020Observed: 4.38 ft at 2:45AM Oct 21, 2020Observed: 4.38 ft at 3:00AM Oct 21, 2020Observed: 4.38 ft at 3:15AM Oct 21, 2020Observed: 4.38 ft at 3:30AM Oct 21, 2020Observed: 4.38 ft at 3:45AM Oct 21, 2020Observed: 4.38 ft at 4:00AM Oct 21, 2020Observed: 4.38 ft at 4:15AM Oct 21, 2020Observed: 4.39 ft at 4:30AM Oct 21, 2020Observed: 4.39 ft at 4:45AM Oct 21, 2020Observed: 4.39 ft at 5:00AM Oct 21, 2020Observed: 4.38 ft at 5:15AM Oct 21, 2020Observed: 4.39 ft at 5:30AM Oct 21, 2020Observed: 4.39 ft at 5:45AM Oct 21, 2020Observed: 4.38 ft at 6:00AM Oct 21, 2020Observed: 4.39 ft at 6:15AM Oct 21, 2020Observed: 4.39 ft at 6:30AM Oct 21, 2020Observed: 4.38 ft at 6:45AM Oct 21, 2020Observed: 4.39 ft at 7:00AM Oct 21, 2020Observed: 4.4 ft at 7:15AM Oct 21, 2020Observed: 4.4 ft at 7:30AM Oct 21, 2020Observed: 4.4 ft at 7:45AM Oct 21, 2020Observed: 4.39 ft at 8:00AM Oct 21, 2020Observed: 4.39 ft at 8:15AM Oct 21, 2020Observed: 4.39 ft at 8:30AM Oct 21, 2020Observed: 4.39 ft at 8:45AM Oct 21, 2020Observed: 4.4 ft at 9:00AM Oct 21, 2020Observed: 4.4 ft at 9:15AM Oct 21, 2020Observed: 4.4 ft at 9:30AM Oct 21, 2020Observed: 4.4 ft at 9:45AM Oct 21, 2020Observed: 4.4 ft at 10:00AM Oct 21, 2020Observed: 4.4 ft at 10:15AM Oct 21, 2020Observed: 4.4 ft at 10:30AM Oct 21, 2020Observed: 4.4 ft at 10:45AM Oct 21, 2020Observed: 4.4 ft at 11:00AM Oct 21, 2020Observed: 4.4 ft at 11:15AM Oct 21, 2020Highest Observation: 4.41 ft at 11:30AM Oct 21, 2020Highest Observation: 4.41 ft at 11:31AM Oct 21, 2020Observed: 4.4 ft at 11:45AM Oct 21, 2020Observed: 4.4 ft at 11:46AM Oct 21, 2020Observed: 4.4 ft at 12:00PM Oct 21, 2020Observed: 4.4 ft at 12:01PM Oct 21, 2020Highest Observation: 4.41 ft at 12:15PM Oct 21, 2020Highest Observation: 4.41 ft at 12:16PM Oct 21, 2020Observed: 4.4 ft at 12:30PM Oct 21, 2020Observed: 4.39 ft at 12:45PM Oct 21, 2020Observed: 4.4 ft at 1:00PM Oct 21, 2020Observed: 4.4 ft at 1:15PM Oct 21, 2020Observed: 4.4 ft at 1:30PM Oct 21, 2020Highest Observation: 4.41 ft at 1:45PM Oct 21, 2020Highest Observation: 4.41 ft at 2:00PM Oct 21, 2020Observed: 4.4 ft at 2:15PM Oct 21, 2020Observed: 4.4 ft at 2:30PM Oct 21, 2020Observed: 4.4 ft at 2:45PM Oct 21, 2020Highest Observation: 4.41 ft at 3:00PM Oct 21, 2020Observed: 4.4 ft at 3:15PM Oct 21, 2020Observed: 4.4 ft at 3:30PM Oct 21, 2020Observed: 4.4 ft at 3:45PM Oct 21, 2020Highest Observation: 4.41 ft at 4:00PM Oct 21, 2020Highest Observation: 4.41 ft at 4:15PM Oct 21, 2020Observed: 4.4 ft at 4:30PM Oct 21, 2020Observed: 4.4 ft at 4:45PM Oct 21, 2020Observed: 4.4 ft at 5:00PM Oct 21, 2020Observed: 4.4 ft at 5:15PM Oct 21, 2020Observed: 4.4 ft at 5:30PM Oct 21, 2020Highest Observation: 4.41 ft at 5:45PM Oct 21, 2020Observed: 4.4 ft at 6:00PM Oct 21, 2020Observed: 4.39 ft at 6:15PM Oct 21, 2020Observed: 4.4 ft at 6:30PM Oct 21, 2020Observed: 4.4 ft at 6:45PM Oct 21, 2020Observed: 4.4 ft at 7:00PM Oct 21, 2020Observed: 4.4 ft at 7:15PM Oct 21, 2020Observed: 4.39 ft at 7:30PM Oct 21, 2020Observed: 4.39 ft at 7:31PM Oct 21, 2020Observed: 4.4 ft at 7:45PM Oct 21, 2020Observed: 4.4 ft at 7:46PM Oct 21, 2020Observed: 4.4 ft at 8:00PM Oct 21, 2020Observed: 4.4 ft at 8:01PM Oct 21, 2020Observed: 4.4 ft at 8:15PM Oct 21, 2020Observed: 4.4 ft at 8:16PM Oct 21, 2020Observed: 4.39 ft at 8:30PM Oct 21, 2020Observed: 4.4 ft at 8:45PM Oct 21, 2020Observed: 4.39 ft at 9:00PM Oct 21, 2020Observed: 4.4 ft at 9:15PM Oct 21, 2020Observed: 4.4 ft at 9:30PM Oct 21, 2020Observed: 4.39 ft at 9:45PM Oct 21, 2020Observed: 4.4 ft at 10:00PM Oct 21, 2020Observed: 4.4 ft at 10:15PM Oct 21, 2020Highest Observation: 4.41 ft at 10:30PM Oct 21, 2020Highest Observation: 4.41 ft at 10:45PM Oct 21, 2020Observed: 4.4 ft at 11:00PM Oct 21, 2020Observed: 4.4 ft at 11:15PM Oct 21, 2020Observed: 4.4 ft at 11:30PM Oct 21, 2020Highest Observation: 4.41 ft at 11:45PM Oct 21, 2020Observed: 4.4 ft at 12:00AM Oct 22, 2020Observed: 4.4 ft at 12:15AM Oct 22, 2020Highest Observation: 4.41 ft at 12:30AM Oct 22, 2020Highest Observation: 4.41 ft at 12:45AM Oct 22, 2020Observed: 4.4 ft at 1:00AM Oct 22, 2020Highest Observation: 4.41 ft at 1:15AM Oct 22, 2020Observed: 4.4 ft at 1:30AM Oct 22, 2020Highest Observation: 4.41 ft at 1:45AM Oct 22, 2020Highest Observation: 4.41 ft at 2:00AM Oct 22, 2020Highest Observation: 4.41 ft at 2:15AM Oct 22, 2020Observed: 4.4 ft at 2:30AM Oct 22, 2020Highest Observation: 4.41 ft at 2:45AM Oct 22, 2020Highest Observation: 4.41 ft at 3:00AM Oct 22, 2020Observed: 4.39 ft at 3:15AM Oct 22, 2020Observed: 4.4 ft at 3:30AM Oct 22, 2020Observed: 4.4 ft at 3:31AM Oct 22, 2020Highest Observation: 4.41 ft at 3:45AM Oct 22, 2020Highest Observation: 4.41 ft at 3:46AM Oct 22, 2020Highest Observation: 4.41 ft at 4:00AM Oct 22, 2020Highest Observation: 4.41 ft at 4:01AM Oct 22, 2020Highest Observation: 4.41 ft at 4:15AM Oct 22, 2020Highest Observation: 4.41 ft at 4:16AM Oct 22, 2020USGS--Water Resources of the United StatesPAHS2(plotting HGIRG) Graph Created (4:52AM Oct 22, 2020)ObservedLatest observed value: 4.41 ft at 4:16 AM CDT 22-Oct-2020. Flood Stage is 10 ft
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About this graph
Tabular Data (UTC)
Tabular Data (CDT)
XML Data
RSS Files
Datum: NGVD29
Metadata
NOTE: Forecasts are not available for the Keyapaha River near Keyapaha. Only observed stages are available for this point.
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Downstream Gauge Downstream Gauge - at Wewala
Flood Categories (in feet)
Major Flood Stage: 12
Moderate Flood Stage: 11
Flood Stage: 10
Action Stage: 8
Low Stage (in feet): -9999

Historic Crests
(1) 13.70 ft on 04/01/1952
(2) 11.36 ft on 03/23/2019
(3) 11.29 ft on 02/18/1997
(4) 9.73 ft on 03/12/2011
(5) 9.48 ft on 05/11/1999
Show More Historic Crests

(P): Preliminary values subject to further review.

Recent Crests
(1) 11.36 ft on 03/23/2019
(2) 8.21 ft on 04/21/2018
(3) 8.65 ft on 03/04/2018
(4) 7.98 ft on 02/14/2017
(5) 7.27 ft on 05/02/2016
Show More Recent Crests

(P): Preliminary values subject to further review.

Low Water Records
(1) 2.70 ft on 09/12/2000
Show More Low Water Records

For more information on your flood risk go to www.floodsmart.gov.
Zoom Level:14
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
10 Flood stage. Flooding of yards and agricultural land along the river.
About This Location Collapse

Latitude: 43.129167° N, Longitude: 100.106667° W, Horizontal Datum: NAD27

River Stage
Reference Frame		 Gauge Height Flood Stage Uses
NWS stage 0 ft 10 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 Not Available Not Available Survey grade GPS equipment, FEMA flood plain maps, newer USGS topographic maps
NGVD 29 2230 ft 2240 ft 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:
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Hydrologic Resources Additional Resources
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
Rapid City Weather Forecast Office
300 East Signal Drive
Rapid City, SD 57701-3800
(605) 341-7531
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Page last modified: 1-Mar-2019 12:33 AM 		Disclaimer
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