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Hydrograph River at a Glance Download
Keyapaha River near Keyapaha Stage (ft)Flow (kcfs)Observed: 4.51 ft at 1:45AM Aug 07, 2020Observed: 4.5 ft at 2:00AM Aug 07, 2020Observed: 4.5 ft at 2:15AM Aug 07, 2020Observed: 4.5 ft at 2:30AM Aug 07, 2020Observed: 4.5 ft at 2:31AM Aug 07, 2020Observed: 4.5 ft at 2:45AM Aug 07, 2020Observed: 4.5 ft at 2:46AM Aug 07, 2020Observed: 4.5 ft at 3:00AM Aug 07, 2020Observed: 4.5 ft at 3:01AM Aug 07, 2020Observed: 4.5 ft at 3:15AM Aug 07, 2020Observed: 4.5 ft at 3:16AM Aug 07, 2020Observed: 4.5 ft at 3:30AM Aug 07, 2020Observed: 4.5 ft at 3:45AM Aug 07, 2020Observed: 4.5 ft at 4:00AM Aug 07, 2020Observed: 4.5 ft at 4:15AM Aug 07, 2020Observed: 4.5 ft at 4:30AM Aug 07, 2020Observed: 4.5 ft at 4:45AM Aug 07, 2020Observed: 4.5 ft at 5:00AM Aug 07, 2020Observed: 4.5 ft at 5:15AM Aug 07, 2020Observed: 4.5 ft at 5:30AM Aug 07, 2020Observed: 4.5 ft at 5:45AM Aug 07, 2020Observed: 4.51 ft at 6:00AM Aug 07, 2020Observed: 4.5 ft at 6:15AM Aug 07, 2020Observed: 4.5 ft at 6:30AM Aug 07, 2020Observed: 4.5 ft at 6:45AM Aug 07, 2020Observed: 4.51 ft at 7:00AM Aug 07, 2020Observed: 4.5 ft at 7:15AM Aug 07, 2020Observed: 4.5 ft at 7:30AM Aug 07, 2020Observed: 4.51 ft at 7:45AM Aug 07, 2020Observed: 4.5 ft at 8:00AM Aug 07, 2020Observed: 4.51 ft at 8:15AM Aug 07, 2020Observed: 4.51 ft at 8:30AM Aug 07, 2020Observed: 4.5 ft at 8:45AM Aug 07, 2020Observed: 4.5 ft at 9:00AM Aug 07, 2020Observed: 4.51 ft at 9:15AM Aug 07, 2020Observed: 4.5 ft at 9:30AM Aug 07, 2020Observed: 4.5 ft at 9:45AM Aug 07, 2020Observed: 4.5 ft at 10:00AM Aug 07, 2020Observed: 4.5 ft at 10:15AM Aug 07, 2020Observed: 4.5 ft at 10:30AM Aug 07, 2020Observed: 4.5 ft at 10:31AM Aug 07, 2020Observed: 4.5 ft at 10:45AM Aug 07, 2020Observed: 4.5 ft at 10:46AM Aug 07, 2020Observed: 4.5 ft at 11:00AM Aug 07, 2020Observed: 4.5 ft at 11:01AM Aug 07, 2020Observed: 4.5 ft at 11:15AM Aug 07, 2020Observed: 4.5 ft at 11:16AM Aug 07, 2020Observed: 4.5 ft at 11:30AM Aug 07, 2020Observed: 4.5 ft at 11:45AM Aug 07, 2020Observed: 4.5 ft at 12:00PM Aug 07, 2020Observed: 4.5 ft at 12:15PM Aug 07, 2020Observed: 4.5 ft at 12:30PM Aug 07, 2020Observed: 4.49 ft at 12:45PM Aug 07, 2020Observed: 4.49 ft at 1:00PM Aug 07, 2020Observed: 4.48 ft at 1:15PM Aug 07, 2020Observed: 4.49 ft at 1:30PM Aug 07, 2020Observed: 4.49 ft at 1:45PM Aug 07, 2020Observed: 4.49 ft at 2:00PM Aug 07, 2020Observed: 4.48 ft at 2:15PM Aug 07, 2020Observed: 4.48 ft at 2:30PM Aug 07, 2020Observed: 4.48 ft at 2:45PM Aug 07, 2020Observed: 4.48 ft at 3:00PM Aug 07, 2020Observed: 4.48 ft at 3:15PM Aug 07, 2020Observed: 4.48 ft at 3:30PM Aug 07, 2020Observed: 4.48 ft at 3:45PM Aug 07, 2020Observed: 4.48 ft at 4:00PM Aug 07, 2020Observed: 4.48 ft at 4:15PM Aug 07, 2020Observed: 4.47 ft at 4:30PM Aug 07, 2020Observed: 4.47 ft at 4:45PM Aug 07, 2020Observed: 4.47 ft at 5:00PM Aug 07, 2020Observed: 4.48 ft at 5:15PM Aug 07, 2020Observed: 4.47 ft at 5:30PM Aug 07, 2020Observed: 4.47 ft at 5:45PM Aug 07, 2020Observed: 4.48 ft at 6:00PM Aug 07, 2020Observed: 4.47 ft at 6:15PM Aug 07, 2020Observed: 4.47 ft at 6:30PM Aug 07, 2020Observed: 4.47 ft at 6:31PM Aug 07, 2020Observed: 4.47 ft at 6:45PM Aug 07, 2020Observed: 4.47 ft at 6:46PM Aug 07, 2020Observed: 4.47 ft at 7:00PM Aug 07, 2020Observed: 4.47 ft at 7:01PM Aug 07, 2020Observed: 4.47 ft at 7:15PM Aug 07, 2020Observed: 4.47 ft at 7:16PM Aug 07, 2020Observed: 4.47 ft at 7:30PM Aug 07, 2020Observed: 4.47 ft at 7:45PM Aug 07, 2020Observed: 4.47 ft at 8:00PM Aug 07, 2020Observed: 4.46 ft at 8:15PM Aug 07, 2020Observed: 4.47 ft at 8:30PM Aug 07, 2020Observed: 4.47 ft at 8:45PM Aug 07, 2020Observed: 4.47 ft at 9:00PM Aug 07, 2020Observed: 4.47 ft at 9:15PM Aug 07, 2020Observed: 4.47 ft at 9:30PM Aug 07, 2020Observed: 4.47 ft at 9:45PM Aug 07, 2020Observed: 4.46 ft at 10:00PM Aug 07, 2020Observed: 4.47 ft at 10:15PM Aug 07, 2020Observed: 4.47 ft at 10:30PM Aug 07, 2020Observed: 4.47 ft at 10:45PM Aug 07, 2020Observed: 4.47 ft at 11:00PM Aug 07, 2020Observed: 4.47 ft at 11:15PM Aug 07, 2020Observed: 4.47 ft at 11:30PM Aug 07, 2020Observed: 4.46 ft at 11:45PM Aug 07, 2020Observed: 4.47 ft at 12:00AM Aug 08, 2020Observed: 4.46 ft at 12:15AM Aug 08, 2020Observed: 4.46 ft at 12:30AM Aug 08, 2020Observed: 4.46 ft at 12:45AM Aug 08, 2020Observed: 4.47 ft at 1:00AM Aug 08, 2020Observed: 4.47 ft at 1:15AM Aug 08, 2020Observed: 4.47 ft at 1:30AM Aug 08, 2020Observed: 4.47 ft at 1:45AM Aug 08, 2020Observed: 4.47 ft at 2:00AM Aug 08, 2020Observed: 4.47 ft at 2:15AM Aug 08, 2020Observed: 4.47 ft at 2:30AM Aug 08, 2020Observed: 4.47 ft at 2:31AM Aug 08, 2020Observed: 4.47 ft at 2:45AM Aug 08, 2020Observed: 4.47 ft at 2:46AM Aug 08, 2020Observed: 4.47 ft at 3:00AM Aug 08, 2020Observed: 4.47 ft at 3:01AM Aug 08, 2020Observed: 4.47 ft at 3:15AM Aug 08, 2020Observed: 4.47 ft at 3:16AM Aug 08, 2020Observed: 4.47 ft at 3:30AM Aug 08, 2020Observed: 4.47 ft at 3:45AM Aug 08, 2020Observed: 4.47 ft at 4:00AM Aug 08, 2020Observed: 4.47 ft at 4:15AM Aug 08, 2020Observed: 4.47 ft at 4:30AM Aug 08, 2020Observed: 4.47 ft at 4:45AM Aug 08, 2020Observed: 4.47 ft at 5:00AM Aug 08, 2020Observed: 4.47 ft at 5:15AM Aug 08, 2020Observed: 4.47 ft at 5:30AM Aug 08, 2020Observed: 4.47 ft at 5:45AM Aug 08, 2020Observed: 4.47 ft at 6:00AM Aug 08, 2020Observed: 4.47 ft at 6:15AM Aug 08, 2020Observed: 4.47 ft at 6:30AM Aug 08, 2020Observed: 4.47 ft at 6:45AM Aug 08, 2020Observed: 4.47 ft at 7:00AM Aug 08, 2020Observed: 4.47 ft at 7:15AM Aug 08, 2020Observed: 4.47 ft at 7:30AM Aug 08, 2020Observed: 4.47 ft at 7:45AM Aug 08, 2020Observed: 4.47 ft at 8:00AM Aug 08, 2020Observed: 4.46 ft at 8:15AM Aug 08, 2020Observed: 4.47 ft at 8:30AM Aug 08, 2020Observed: 4.47 ft at 8:45AM Aug 08, 2020Observed: 4.47 ft at 9:00AM Aug 08, 2020Observed: 4.46 ft at 9:15AM Aug 08, 2020Observed: 4.46 ft at 9:30AM Aug 08, 2020Observed: 4.47 ft at 9:45AM Aug 08, 2020Observed: 4.46 ft at 10:00AM Aug 08, 2020Observed: 4.46 ft at 10:15AM Aug 08, 2020Observed: 4.46 ft at 10:30AM Aug 08, 2020Observed: 4.46 ft at 10:31AM Aug 08, 2020Observed: 4.47 ft at 10:45AM Aug 08, 2020Observed: 4.47 ft at 10:46AM Aug 08, 2020Observed: 4.46 ft at 11:00AM Aug 08, 2020Observed: 4.46 ft at 11:01AM Aug 08, 2020Observed: 4.46 ft at 11:15AM Aug 08, 2020Observed: 4.46 ft at 11:16AM Aug 08, 2020Observed: 4.46 ft at 11:30AM Aug 08, 2020Observed: 4.46 ft at 11:45AM Aug 08, 2020Observed: 4.46 ft at 12:00PM Aug 08, 2020Observed: 4.46 ft at 12:15PM Aug 08, 2020Observed: 4.46 ft at 12:30PM Aug 08, 2020Observed: 4.46 ft at 12:45PM Aug 08, 2020Observed: 4.46 ft at 1:00PM Aug 08, 2020Observed: 4.46 ft at 1:15PM Aug 08, 2020Observed: 4.46 ft at 1:30PM Aug 08, 2020Observed: 4.46 ft at 1:45PM Aug 08, 2020Observed: 4.46 ft at 2:00PM Aug 08, 2020Observed: 4.46 ft at 2:15PM Aug 08, 2020Observed: 4.45 ft at 2:30PM Aug 08, 2020Observed: 4.45 ft at 2:45PM Aug 08, 2020Observed: 4.45 ft at 3:00PM Aug 08, 2020Observed: 4.45 ft at 3:15PM Aug 08, 2020Observed: 4.45 ft at 3:30PM Aug 08, 2020Observed: 4.45 ft at 3:45PM Aug 08, 2020Observed: 4.46 ft at 4:00PM Aug 08, 2020Observed: 4.46 ft at 4:15PM Aug 08, 2020Observed: 4.45 ft at 4:30PM Aug 08, 2020Observed: 4.45 ft at 4:45PM Aug 08, 2020Observed: 4.45 ft at 5:00PM Aug 08, 2020Observed: 4.45 ft at 5:15PM Aug 08, 2020Observed: 4.45 ft at 5:30PM Aug 08, 2020Observed: 4.45 ft at 5:45PM Aug 08, 2020Observed: 4.45 ft at 6:00PM Aug 08, 2020Observed: 4.44 ft at 6:15PM Aug 08, 2020Observed: 4.44 ft at 6:30PM Aug 08, 2020Observed: 4.44 ft at 6:31PM Aug 08, 2020Observed: 4.44 ft at 6:45PM Aug 08, 2020Observed: 4.44 ft at 6:46PM Aug 08, 2020Observed: 4.44 ft at 7:00PM Aug 08, 2020Observed: 4.44 ft at 7:01PM Aug 08, 2020Observed: 4.45 ft at 7:15PM Aug 08, 2020Observed: 4.45 ft at 7:16PM Aug 08, 2020Observed: 4.45 ft at 7:30PM Aug 08, 2020Observed: 4.44 ft at 7:45PM Aug 08, 2020Observed: 4.45 ft at 8:00PM Aug 08, 2020Observed: 4.45 ft at 8:15PM Aug 08, 2020Observed: 4.45 ft at 8:30PM Aug 08, 2020Observed: 4.45 ft at 8:45PM Aug 08, 2020Observed: 4.45 ft at 9:00PM Aug 08, 2020Observed: 4.45 ft at 9:15PM Aug 08, 2020Observed: 4.45 ft at 9:30PM Aug 08, 2020Observed: 4.45 ft at 9:45PM Aug 08, 2020Observed: 4.45 ft at 10:00PM Aug 08, 2020Observed: 4.44 ft at 10:15PM Aug 08, 2020Observed: 4.45 ft at 10:30PM Aug 08, 2020Observed: 4.46 ft at 10:45PM Aug 08, 2020Observed: 4.48 ft at 11:00PM Aug 08, 2020Observed: 4.45 ft at 11:15PM Aug 08, 2020Observed: 4.47 ft at 11:30PM Aug 08, 2020Observed: 4.47 ft at 11:45PM Aug 08, 2020Observed: 4.46 ft at 12:00AM Aug 09, 2020Observed: 4.47 ft at 12:15AM Aug 09, 2020Observed: 4.48 ft at 12:30AM Aug 09, 2020Observed: 4.48 ft at 12:45AM Aug 09, 2020Observed: 4.47 ft at 1:00AM Aug 09, 2020Observed: 4.47 ft at 1:15AM Aug 09, 2020Observed: 4.47 ft at 1:30AM Aug 09, 2020Observed: 4.47 ft at 1:45AM Aug 09, 2020Observed: 4.47 ft at 2:00AM Aug 09, 2020Observed: 4.47 ft at 2:15AM Aug 09, 2020Observed: 4.47 ft at 2:30AM Aug 09, 2020Observed: 4.47 ft at 2:31AM Aug 09, 2020Observed: 4.48 ft at 2:45AM Aug 09, 2020Observed: 4.48 ft at 2:46AM Aug 09, 2020Observed: 4.47 ft at 3:00AM Aug 09, 2020Observed: 4.47 ft at 3:01AM Aug 09, 2020Observed: 4.47 ft at 3:15AM Aug 09, 2020Observed: 4.47 ft at 3:16AM Aug 09, 2020Observed: 4.47 ft at 3:30AM Aug 09, 2020Observed: 4.47 ft at 3:45AM Aug 09, 2020Observed: 4.46 ft at 4:00AM Aug 09, 2020Observed: 4.46 ft at 4:15AM Aug 09, 2020Observed: 4.46 ft at 4:30AM Aug 09, 2020Observed: 4.46 ft at 4:45AM Aug 09, 2020Observed: 4.46 ft at 5:00AM Aug 09, 2020Observed: 4.46 ft at 5:15AM Aug 09, 2020Observed: 4.46 ft at 5:30AM Aug 09, 2020Observed: 4.46 ft at 5:45AM Aug 09, 2020Observed: 4.46 ft at 6:00AM Aug 09, 2020Observed: 4.47 ft at 6:15AM Aug 09, 2020Observed: 4.46 ft at 6:30AM Aug 09, 2020Observed: 4.47 ft at 6:45AM Aug 09, 2020Observed: 4.46 ft at 7:00AM Aug 09, 2020Observed: 4.47 ft at 7:15AM Aug 09, 2020Observed: 4.47 ft at 7:30AM Aug 09, 2020Observed: 4.47 ft at 7:45AM Aug 09, 2020Observed: 4.47 ft at 8:00AM Aug 09, 2020Observed: 4.47 ft at 8:15AM Aug 09, 2020Observed: 4.48 ft at 8:30AM Aug 09, 2020Observed: 4.48 ft at 8:45AM Aug 09, 2020Observed: 4.48 ft at 9:00AM Aug 09, 2020Observed: 4.48 ft at 9:15AM Aug 09, 2020Observed: 4.49 ft at 9:30AM Aug 09, 2020Observed: 4.49 ft at 9:45AM Aug 09, 2020Observed: 4.48 ft at 10:00AM Aug 09, 2020Observed: 4.49 ft at 10:15AM Aug 09, 2020Observed: 4.53 ft at 10:30AM Aug 09, 2020Highest Observation: 4.54 ft at 10:45AM Aug 09, 2020Highest Observation: 4.54 ft at 10:46AM Aug 09, 2020Observed: 4.51 ft at 11:00AM Aug 09, 2020Observed: 4.51 ft at 11:01AM Aug 09, 2020Observed: 4.49 ft at 11:15AM Aug 09, 2020Observed: 4.49 ft at 11:16AM Aug 09, 2020Observed: 4.48 ft at 11:30AM Aug 09, 2020Observed: 4.48 ft at 11:31AM Aug 09, 2020Observed: 4.48 ft at 11:45AM Aug 09, 2020Observed: 4.49 ft at 12:00PM Aug 09, 2020Observed: 4.53 ft at 12:15PM Aug 09, 2020Observed: 4.52 ft at 12:30PM Aug 09, 2020Observed: 4.48 ft at 12:45PM Aug 09, 2020Observed: 4.49 ft at 1:00PM Aug 09, 2020Observed: 4.49 ft at 1:15PM Aug 09, 2020Observed: 4.49 ft at 1:30PM Aug 09, 2020Observed: 4.49 ft at 1:45PM Aug 09, 2020Observed: 4.49 ft at 2:00PM Aug 09, 2020Observed: 4.49 ft at 2:15PM Aug 09, 2020Observed: 4.49 ft at 2:30PM Aug 09, 2020Observed: 4.49 ft at 2:45PM Aug 09, 2020Observed: 4.49 ft at 3:00PM Aug 09, 2020Observed: 4.49 ft at 3:15PM Aug 09, 2020Observed: 4.5 ft at 3:30PM Aug 09, 2020Observed: 4.5 ft at 3:45PM Aug 09, 2020Observed: 4.5 ft at 4:00PM Aug 09, 2020Observed: 4.5 ft at 4:15PM Aug 09, 2020Observed: 4.5 ft at 4:30PM Aug 09, 2020Observed: 4.51 ft at 4:45PM Aug 09, 2020Observed: 4.51 ft at 5:00PM Aug 09, 2020Observed: 4.51 ft at 5:15PM Aug 09, 2020Observed: 4.51 ft at 5:30PM Aug 09, 2020Observed: 4.51 ft at 5:45PM Aug 09, 2020Observed: 4.51 ft at 6:00PM Aug 09, 2020Observed: 4.5 ft at 6:15PM Aug 09, 2020Observed: 4.5 ft at 6:30PM Aug 09, 2020Observed: 4.51 ft at 6:45PM Aug 09, 2020Observed: 4.51 ft at 6:46PM Aug 09, 2020Observed: 4.51 ft at 7:00PM Aug 09, 2020Observed: 4.51 ft at 7:01PM Aug 09, 2020Observed: 4.51 ft at 7:15PM Aug 09, 2020Observed: 4.51 ft at 7:16PM Aug 09, 2020Observed: 4.51 ft at 7:30PM Aug 09, 2020Observed: 4.51 ft at 7:31PM Aug 09, 2020Observed: 4.51 ft at 7:45PM Aug 09, 2020Observed: 4.5 ft at 8:00PM Aug 09, 2020Observed: 4.51 ft at 8:15PM Aug 09, 2020Observed: 4.51 ft at 8:30PM Aug 09, 2020Observed: 4.5 ft at 8:45PM Aug 09, 2020Observed: 4.51 ft at 9:00PM Aug 09, 2020Observed: 4.51 ft at 9:15PM Aug 09, 2020Observed: 4.51 ft at 9:30PM Aug 09, 2020Observed: 4.5 ft at 9:45PM Aug 09, 2020Observed: 4.5 ft at 10:00PM Aug 09, 2020Observed: 4.5 ft at 10:15PM Aug 09, 2020Observed: 4.5 ft at 10:30PM Aug 09, 2020Observed: 4.5 ft at 10:45PM Aug 09, 2020Observed: 4.5 ft at 11:00PM Aug 09, 2020Observed: 4.5 ft at 11:15PM Aug 09, 2020Observed: 4.51 ft at 11:30PM Aug 09, 2020Observed: 4.51 ft at 11:45PM Aug 09, 2020Observed: 4.51 ft at 12:00AM Aug 10, 2020Observed: 4.51 ft at 12:15AM Aug 10, 2020USGS--Water Resources of the United StatesPAHS2(plotting HGIRG) Graph Created (1:38AM Aug 10, 2020)ObservedLatest observed value: 4.51 ft at 12:15 AM CDT 10-Aug-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) 11.29 ft on 02/18/1997
(3) 9.73 ft on 03/12/2011
(4) 9.48 ft on 02/20/1997
(5) 9.48 ft on 05/11/1999
Show More Historic Crests

(P): Preliminary values subject to further review.

Recent Crests
(1) 8.21 ft on 04/21/2018
(2) 8.65 ft on 03/04/2018
(3) 7.98 ft on 02/14/2017
(4) 7.27 ft on 05/02/2016
(5) 7.79 ft on 09/24/2015
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
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