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Hydrograph River at a Glance Download
Keyapaha River near Keyapaha Stage (ft)Flow (kcfs)Observed: 4.82 ft at 4:00AM May 14, 2022Observed: 4.82 ft at 4:15AM May 14, 2022Observed: 4.81 ft at 4:30AM May 14, 2022Observed: 4.82 ft at 4:45AM May 14, 2022Observed: 4.82 ft at 5:00AM May 14, 2022Highest Observation: 4.83 ft at 5:15AM May 14, 2022Observed: 4.81 ft at 5:30AM May 14, 2022Observed: 4.82 ft at 5:45AM May 14, 2022Observed: 4.82 ft at 6:00AM May 14, 2022Observed: 4.81 ft at 6:15AM May 14, 2022Observed: 4.82 ft at 7:30AM May 14, 2022Observed: 4.81 ft at 7:45AM May 14, 2022Observed: 4.82 ft at 8:00AM May 14, 2022Observed: 4.82 ft at 8:15AM May 14, 2022Highest Observation: 4.83 ft at 8:30AM May 14, 2022Observed: 4.82 ft at 8:45AM May 14, 2022Observed: 4.82 ft at 9:00AM May 14, 2022Observed: 4.82 ft at 9:15AM May 14, 2022Observed: 4.82 ft at 9:30AM May 14, 2022Highest Observation: 4.83 ft at 9:45AM May 14, 2022Observed: 4.82 ft at 10:00AM May 14, 2022Highest Observation: 4.83 ft at 10:15AM May 14, 2022Observed: 4.82 ft at 10:30AM May 14, 2022Observed: 4.82 ft at 10:45AM May 14, 2022Highest Observation: 4.83 ft at 11:00AM May 14, 2022Observed: 4.82 ft at 11:15AM May 14, 2022Observed: 4.82 ft at 11:30AM May 14, 2022Observed: 4.82 ft at 11:45AM May 14, 2022Observed: 4.81 ft at 12:00PM May 14, 2022Highest Observation: 4.83 ft at 12:15PM May 14, 2022Observed: 4.82 ft at 12:30PM May 14, 2022Observed: 4.81 ft at 12:45PM May 14, 2022Observed: 4.82 ft at 1:00PM May 14, 2022Observed: 4.81 ft at 1:15PM May 14, 2022Observed: 4.81 ft at 1:30PM May 14, 2022Observed: 4.81 ft at 1:45PM May 14, 2022Observed: 4.81 ft at 2:00PM May 14, 2022Observed: 4.8 ft at 2:15PM May 14, 2022Observed: 4.81 ft at 2:30PM May 14, 2022Observed: 4.81 ft at 2:45PM May 14, 2022Observed: 4.81 ft at 3:00PM May 14, 2022Observed: 4.81 ft at 3:15PM May 14, 2022Observed: 4.81 ft at 3:30PM May 14, 2022Observed: 4.81 ft at 3:45PM May 14, 2022Observed: 4.8 ft at 4:00PM May 14, 2022Observed: 4.81 ft at 4:15PM May 14, 2022Observed: 4.81 ft at 4:30PM May 14, 2022Observed: 4.8 ft at 4:45PM May 14, 2022Observed: 4.8 ft at 5:00PM May 14, 2022Observed: 4.8 ft at 5:15PM May 14, 2022Observed: 4.8 ft at 5:30PM May 14, 2022Observed: 4.8 ft at 5:45PM May 14, 2022Observed: 4.79 ft at 6:00PM May 14, 2022Observed: 4.79 ft at 6:15PM May 14, 2022Observed: 4.79 ft at 6:30PM May 14, 2022Observed: 4.79 ft at 6:45PM May 14, 2022Observed: 4.8 ft at 7:00PM May 14, 2022Observed: 4.8 ft at 7:15PM May 14, 2022Observed: 4.79 ft at 7:30PM May 14, 2022Observed: 4.8 ft at 7:45PM May 14, 2022Observed: 4.79 ft at 8:00PM May 14, 2022Observed: 4.8 ft at 8:15PM May 14, 2022Observed: 4.79 ft at 10:30PM May 14, 2022Observed: 4.79 ft at 10:45PM May 14, 2022Observed: 4.79 ft at 11:00PM May 14, 2022Observed: 4.79 ft at 11:15PM May 14, 2022Observed: 4.79 ft at 11:30PM May 14, 2022Observed: 4.79 ft at 11:45PM May 14, 2022Observed: 4.79 ft at 12:00AM May 15, 2022Observed: 4.79 ft at 12:15AM May 15, 2022Observed: 4.79 ft at 12:30AM May 15, 2022Observed: 4.79 ft at 12:45AM May 15, 2022Observed: 4.79 ft at 1:00AM May 15, 2022Observed: 4.78 ft at 1:15AM May 15, 2022Observed: 4.78 ft at 2:30AM May 15, 2022Observed: 4.79 ft at 2:45AM May 15, 2022Observed: 4.79 ft at 3:00AM May 15, 2022Observed: 4.78 ft at 3:15AM May 15, 2022Observed: 4.78 ft at 3:30AM May 15, 2022Observed: 4.79 ft at 3:45AM May 15, 2022Observed: 4.78 ft at 4:00AM May 15, 2022Observed: 4.79 ft at 4:15AM May 15, 2022Observed: 4.79 ft at 4:30AM May 15, 2022Observed: 4.79 ft at 4:45AM May 15, 2022Observed: 4.79 ft at 5:00AM May 15, 2022Observed: 4.8 ft at 5:15AM May 15, 2022Observed: 4.81 ft at 5:30AM May 15, 2022Observed: 4.81 ft at 5:45AM May 15, 2022Observed: 4.81 ft at 6:00AM May 15, 2022Observed: 4.81 ft at 6:15AM May 15, 2022Observed: 4.82 ft at 6:30AM May 15, 2022Observed: 4.81 ft at 6:45AM May 15, 2022Highest Observation: 4.83 ft at 7:00AM May 15, 2022Observed: 4.82 ft at 7:15AM May 15, 2022Observed: 4.81 ft at 7:30AM May 15, 2022Highest Observation: 4.83 ft at 7:45AM May 15, 2022Observed: 4.82 ft at 8:00AM May 15, 2022Highest Observation: 4.83 ft at 8:15AM May 15, 2022Observed: 4.82 ft at 10:30AM May 15, 2022Observed: 4.82 ft at 10:45AM May 15, 2022Observed: 4.81 ft at 11:00AM May 15, 2022Observed: 4.82 ft at 11:15AM May 15, 2022Observed: 4.82 ft at 11:30AM May 15, 2022Observed: 4.81 ft at 11:45AM May 15, 2022Observed: 4.81 ft at 12:00PM May 15, 2022Observed: 4.82 ft at 12:15PM May 15, 2022Observed: 4.81 ft at 12:30PM May 15, 2022Observed: 4.82 ft at 12:45PM May 15, 2022Observed: 4.81 ft at 1:00PM May 15, 2022Observed: 4.8 ft at 1:15PM May 15, 2022Observed: 4.81 ft at 1:30PM May 15, 2022Observed: 4.81 ft at 1:45PM May 15, 2022Observed: 4.8 ft at 2:00PM May 15, 2022Observed: 4.8 ft at 2:15PM May 15, 2022Observed: 4.81 ft at 2:30PM May 15, 2022Observed: 4.81 ft at 2:45PM May 15, 2022Observed: 4.8 ft at 3:00PM May 15, 2022Observed: 4.8 ft at 3:15PM May 15, 2022Observed: 4.81 ft at 3:30PM May 15, 2022Observed: 4.8 ft at 3:45PM May 15, 2022Observed: 4.8 ft at 4:00PM May 15, 2022Observed: 4.79 ft at 4:15PM May 15, 2022Observed: 4.8 ft at 5:30PM May 15, 2022Observed: 4.79 ft at 5:45PM May 15, 2022Observed: 4.78 ft at 6:00PM May 15, 2022Observed: 4.8 ft at 6:15PM May 15, 2022Observed: 4.79 ft at 6:30PM May 15, 2022Observed: 4.79 ft at 6:45PM May 15, 2022Observed: 4.79 ft at 7:00PM May 15, 2022Observed: 4.78 ft at 7:15PM May 15, 2022Observed: 4.79 ft at 7:30PM May 15, 2022Observed: 4.78 ft at 7:45PM May 15, 2022Observed: 4.79 ft at 8:00PM May 15, 2022Observed: 4.79 ft at 8:15PM May 15, 2022Observed: 4.79 ft at 8:30PM May 15, 2022Observed: 4.79 ft at 8:45PM May 15, 2022Observed: 4.8 ft at 9:00PM May 15, 2022Observed: 4.79 ft at 9:15PM May 15, 2022Observed: 4.8 ft at 9:30PM May 15, 2022Observed: 4.79 ft at 9:45PM May 15, 2022Observed: 4.79 ft at 10:00PM May 15, 2022Observed: 4.79 ft at 10:15PM May 15, 2022Observed: 4.79 ft at 11:30PM May 15, 2022Observed: 4.8 ft at 11:45PM May 15, 2022Observed: 4.8 ft at 12:00AM May 16, 2022Observed: 4.79 ft at 12:15AM May 16, 2022Observed: 4.8 ft at 12:30AM May 16, 2022Observed: 4.79 ft at 12:45AM May 16, 2022Observed: 4.8 ft at 1:00AM May 16, 2022Observed: 4.8 ft at 1:15AM May 16, 2022Observed: 4.79 ft at 1:30AM May 16, 2022Observed: 4.79 ft at 1:45AM May 16, 2022Observed: 4.8 ft at 2:00AM May 16, 2022Observed: 4.79 ft at 2:15AM May 16, 2022Observed: 4.8 ft at 2:30AM May 16, 2022Observed: 4.81 ft at 2:45AM May 16, 2022Observed: 4.81 ft at 3:00AM May 16, 2022Observed: 4.8 ft at 3:15AM May 16, 2022Observed: 4.81 ft at 3:30AM May 16, 2022Observed: 4.81 ft at 3:45AM May 16, 2022Observed: 4.8 ft at 4:00AM May 16, 2022Observed: 4.8 ft at 4:15AM May 16, 2022Observed: 4.8 ft at 5:30AM May 16, 2022Observed: 4.8 ft at 5:45AM May 16, 2022Observed: 4.8 ft at 6:00AM May 16, 2022Observed: 4.81 ft at 6:15AM May 16, 2022Observed: 4.8 ft at 9:30AM May 16, 2022Observed: 4.8 ft at 9:45AM May 16, 2022Observed: 4.8 ft at 10:00AM May 16, 2022Observed: 4.8 ft at 10:15AM May 16, 2022Observed: 4.8 ft at 10:30AM May 16, 2022Observed: 4.79 ft at 10:45AM May 16, 2022Observed: 4.79 ft at 11:00AM May 16, 2022Observed: 4.8 ft at 11:15AM May 16, 2022Observed: 4.8 ft at 11:30AM May 16, 2022Observed: 4.8 ft at 11:45AM May 16, 2022Observed: 4.8 ft at 12:00PM May 16, 2022Observed: 4.79 ft at 12:15PM May 16, 2022Observed: 4.8 ft at 12:30PM May 16, 2022Observed: 4.8 ft at 12:45PM May 16, 2022Observed: 4.79 ft at 1:00PM May 16, 2022Observed: 4.79 ft at 1:15PM May 16, 2022Observed: 4.79 ft at 1:30PM May 16, 2022Observed: 4.78 ft at 1:45PM May 16, 2022Observed: 4.79 ft at 2:00PM May 16, 2022Observed: 4.79 ft at 2:15PM May 16, 2022Observed: 4.78 ft at 4:30PM May 16, 2022Observed: 4.78 ft at 4:45PM May 16, 2022Observed: 4.77 ft at 5:00PM May 16, 2022Observed: 4.78 ft at 5:15PM May 16, 2022Observed: 4.78 ft at 5:30PM May 16, 2022Observed: 4.78 ft at 5:45PM May 16, 2022Observed: 4.77 ft at 6:00PM May 16, 2022Observed: 4.78 ft at 6:15PM May 16, 2022Observed: 4.78 ft at 6:30PM May 16, 2022Observed: 4.78 ft at 6:45PM May 16, 2022Observed: 4.78 ft at 7:00PM May 16, 2022Observed: 4.78 ft at 7:15PM May 16, 2022Observed: 4.77 ft at 7:30PM May 16, 2022Observed: 4.77 ft at 7:45PM May 16, 2022Observed: 4.78 ft at 8:00PM May 16, 2022Observed: 4.77 ft at 8:15PM May 16, 2022Observed: 4.77 ft at 8:30PM May 16, 2022Observed: 4.78 ft at 8:45PM May 16, 2022Observed: 4.77 ft at 9:00PM May 16, 2022Observed: 4.78 ft at 9:15PM May 16, 2022Observed: 4.78 ft at 9:30PM May 16, 2022Observed: 4.78 ft at 9:45PM May 16, 2022Observed: 4.77 ft at 10:00PM May 16, 2022Observed: 4.77 ft at 10:15PM May 16, 2022Observed: 4.77 ft at 10:30PM May 16, 2022Observed: 4.78 ft at 10:45PM May 16, 2022Observed: 4.78 ft at 11:00PM May 16, 2022Observed: 4.78 ft at 11:15PM May 16, 2022Observed: 4.78 ft at 11:30PM May 16, 2022Observed: 4.79 ft at 11:45PM May 16, 2022Observed: 4.78 ft at 12:00AM May 17, 2022Observed: 4.78 ft at 12:15AM May 17, 2022Observed: 4.78 ft at 12:30AM May 17, 2022Observed: 4.78 ft at 12:45AM May 17, 2022Observed: 4.78 ft at 1:00AM May 17, 2022Observed: 4.78 ft at 1:15AM May 17, 2022Observed: 4.78 ft at 1:30AM May 17, 2022Observed: 4.79 ft at 1:45AM May 17, 2022Observed: 4.78 ft at 2:00AM May 17, 2022Observed: 4.78 ft at 2:15AM May 17, 2022Observed: 4.78 ft at 2:30AM May 17, 2022Observed: 4.79 ft at 2:45AM May 17, 2022Observed: 4.78 ft at 3:00AM May 17, 2022Observed: 4.79 ft at 3:15AM May 17, 2022USGS--Water Resources of the United StatesPAHS2(plotting HGIRG) Graph Created (3:54AM May 17, 2022)ObservedLatest observed value: 4.79 ft at 3:15 AM CDT 17-May-2022. Flood Stage is 10 ft
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About this graph
Tabular Data (UTC)
Tabular Data (CDT)
XML Data
RSS Files
Datum: NAVD88
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 02/20/1997
Show More Historic Crests

(P): Preliminary values subject to further review.

Recent Crests
(1) 5.85 ft on 03/21/2021
(2) 5.95 ft on 07/25/2020
(3) 6.91 ft on 02/04/2020
(4) 11.36 ft on 03/23/2019
(5) 8.21 ft on 04/21/2018
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.
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.
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10 Flood stage. Flooding of yards and agricultural land along the river.
About This Location Collapse

Latitude: 43.129172° N, Longitude: 100.107067° W, Horizontal Datum: NAD83/WGS84

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 2231 2241 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:
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Hydrologic Resources Additional Resources
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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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