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Hydrograph River at a Glance Download
Whetstone River above Whetstone River near Big Stone City Stage (ft)Flow (cfs)Observed: 1.48 ft at 8:15PM Aug 07, 2020Observed: 1.48 ft at 8:30PM Aug 07, 2020Observed: 1.48 ft at 8:45PM Aug 07, 2020Observed: 1.48 ft at 9:00PM Aug 07, 2020Observed: 1.48 ft at 9:15PM Aug 07, 2020Observed: 1.48 ft at 9:30PM Aug 07, 2020Observed: 1.48 ft at 9:45PM Aug 07, 2020Observed: 1.48 ft at 10:00PM Aug 07, 2020Observed: 1.48 ft at 10:15PM Aug 07, 2020Observed: 1.48 ft at 10:30PM Aug 07, 2020Observed: 1.48 ft at 10:45PM Aug 07, 2020Observed: 1.48 ft at 11:00PM Aug 07, 2020Observed: 1.48 ft at 11:15PM Aug 07, 2020Observed: 1.48 ft at 11:30PM Aug 07, 2020Observed: 1.48 ft at 11:45PM Aug 07, 2020Observed: 1.48 ft at 12:00AM Aug 08, 2020Observed: 1.48 ft at 12:15AM Aug 08, 2020Observed: 1.48 ft at 12:30AM Aug 08, 2020Observed: 1.48 ft at 12:45AM Aug 08, 2020Observed: 1.48 ft at 1:00AM Aug 08, 2020Observed: 1.48 ft at 1:15AM Aug 08, 2020Observed: 1.48 ft at 1:30AM Aug 08, 2020Observed: 1.48 ft at 1:45AM Aug 08, 2020Observed: 1.48 ft at 2:00AM Aug 08, 2020Observed: 1.48 ft at 2:15AM Aug 08, 2020Observed: 1.48 ft at 2:30AM Aug 08, 2020Observed: 1.48 ft at 2:45AM Aug 08, 2020Observed: 1.48 ft at 3:00AM Aug 08, 2020Observed: 1.48 ft at 3:15AM Aug 08, 2020Observed: 1.48 ft at 3:30AM Aug 08, 2020Observed: 1.48 ft at 3:45AM Aug 08, 2020Observed: 1.48 ft at 4:00AM Aug 08, 2020Observed: 1.48 ft at 4:15AM Aug 08, 2020Observed: 1.48 ft at 4:30AM Aug 08, 2020Observed: 1.48 ft at 4:45AM Aug 08, 2020Observed: 1.48 ft at 5:00AM Aug 08, 2020Observed: 1.48 ft at 5:15AM Aug 08, 2020Observed: 1.48 ft at 5:30AM Aug 08, 2020Observed: 1.48 ft at 5:45AM Aug 08, 2020Observed: 1.48 ft at 6:00AM Aug 08, 2020Observed: 1.48 ft at 6:15AM Aug 08, 2020Observed: 1.48 ft at 6:30AM Aug 08, 2020Observed: 1.48 ft at 6:45AM Aug 08, 2020Observed: 1.48 ft at 7:00AM Aug 08, 2020Observed: 1.48 ft at 7:15AM Aug 08, 2020Observed: 1.48 ft at 7:30AM Aug 08, 2020Observed: 1.48 ft at 7:45AM Aug 08, 2020Observed: 1.48 ft at 8:00AM Aug 08, 2020Observed: 1.48 ft at 8:15AM Aug 08, 2020Observed: 1.48 ft at 8:30AM Aug 08, 2020Observed: 1.48 ft at 8:45AM Aug 08, 2020Observed: 1.48 ft at 9:00AM Aug 08, 2020Observed: 1.48 ft at 9:15AM Aug 08, 2020Observed: 1.48 ft at 9:30AM Aug 08, 2020Observed: 1.48 ft at 9:45AM Aug 08, 2020Observed: 1.48 ft at 10:00AM Aug 08, 2020Observed: 1.48 ft at 10:15AM Aug 08, 2020Observed: 1.48 ft at 10:30AM Aug 08, 2020Observed: 1.48 ft at 10:45AM Aug 08, 2020Observed: 1.48 ft at 11:00AM Aug 08, 2020Observed: 1.48 ft at 11:15AM Aug 08, 2020Observed: 1.48 ft at 11:30AM Aug 08, 2020Observed: 1.48 ft at 11:45AM Aug 08, 2020Observed: 1.48 ft at 12:00PM Aug 08, 2020Observed: 1.48 ft at 12:15PM Aug 08, 2020Observed: 1.48 ft at 12:30PM Aug 08, 2020Observed: 1.48 ft at 12:45PM Aug 08, 2020Observed: 1.48 ft at 1:00PM Aug 08, 2020Observed: 1.48 ft at 1:15PM Aug 08, 2020Observed: 1.48 ft at 1:30PM Aug 08, 2020Observed: 1.48 ft at 1:45PM Aug 08, 2020Observed: 1.48 ft at 2:00PM Aug 08, 2020Observed: 1.48 ft at 2:15PM Aug 08, 2020Observed: 1.48 ft at 2:30PM Aug 08, 2020Observed: 1.48 ft at 2:45PM Aug 08, 2020Observed: 1.48 ft at 3:00PM Aug 08, 2020Observed: 1.48 ft at 3:15PM Aug 08, 2020Observed: 1.48 ft at 3:30PM Aug 08, 2020Observed: 1.48 ft at 3:45PM Aug 08, 2020Observed: 1.48 ft at 4:00PM Aug 08, 2020Observed: 1.48 ft at 4:15PM Aug 08, 2020Observed: 1.48 ft at 4:30PM Aug 08, 2020Observed: 1.48 ft at 4:45PM Aug 08, 2020Observed: 1.48 ft at 5:00PM Aug 08, 2020Observed: 1.48 ft at 5:15PM Aug 08, 2020Observed: 1.48 ft at 5:30PM Aug 08, 2020Observed: 1.48 ft at 5:45PM Aug 08, 2020Observed: 1.48 ft at 6:00PM Aug 08, 2020Observed: 1.48 ft at 6:15PM Aug 08, 2020Observed: 1.48 ft at 6:30PM Aug 08, 2020Observed: 1.48 ft at 6:45PM Aug 08, 2020Observed: 1.48 ft at 7:00PM Aug 08, 2020Observed: 1.48 ft at 7:15PM Aug 08, 2020Observed: 1.48 ft at 7:30PM Aug 08, 2020Observed: 1.48 ft at 7:45PM Aug 08, 2020Observed: 1.48 ft at 8:00PM Aug 08, 2020Observed: 1.48 ft at 8:15PM Aug 08, 2020Observed: 1.48 ft at 8:30PM Aug 08, 2020Observed: 1.48 ft at 8:45PM Aug 08, 2020Observed: 1.48 ft at 9:00PM Aug 08, 2020Observed: 1.48 ft at 9:15PM Aug 08, 2020Observed: 1.48 ft at 9:30PM Aug 08, 2020Observed: 1.48 ft at 9:45PM Aug 08, 2020Observed: 1.48 ft at 10:00PM Aug 08, 2020Observed: 1.48 ft at 10:15PM Aug 08, 2020Observed: 1.48 ft at 10:30PM Aug 08, 2020Observed: 1.48 ft at 10:45PM Aug 08, 2020Observed: 1.48 ft at 11:00PM Aug 08, 2020Observed: 1.48 ft at 11:15PM Aug 08, 2020Observed: 1.48 ft at 11:30PM Aug 08, 2020Observed: 1.48 ft at 11:45PM Aug 08, 2020Observed: 1.48 ft at 12:00AM Aug 09, 2020Observed: 1.48 ft at 12:15AM Aug 09, 2020Observed: 1.48 ft at 12:30AM Aug 09, 2020Observed: 1.48 ft at 12:45AM Aug 09, 2020Observed: 1.48 ft at 1:00AM Aug 09, 2020Observed: 1.48 ft at 1:15AM Aug 09, 2020Observed: 1.48 ft at 1:30AM Aug 09, 2020Observed: 1.48 ft at 1:45AM Aug 09, 2020Observed: 1.48 ft at 2:00AM Aug 09, 2020Observed: 1.48 ft at 2:15AM Aug 09, 2020Observed: 1.48 ft at 2:30AM Aug 09, 2020Observed: 1.48 ft at 2:45AM Aug 09, 2020Observed: 1.48 ft at 3:00AM Aug 09, 2020Observed: 1.48 ft at 3:15AM Aug 09, 2020Observed: 1.48 ft at 3:30AM Aug 09, 2020Observed: 1.48 ft at 3:45AM Aug 09, 2020Observed: 1.48 ft at 4:00AM Aug 09, 2020Observed: 1.48 ft at 4:15AM Aug 09, 2020Observed: 1.48 ft at 4:30AM Aug 09, 2020Observed: 1.48 ft at 4:45AM Aug 09, 2020Observed: 1.48 ft at 5:00AM Aug 09, 2020Observed: 1.48 ft at 5:15AM Aug 09, 2020Observed: 1.48 ft at 5:30AM Aug 09, 2020Observed: 1.48 ft at 5:45AM Aug 09, 2020Observed: 1.48 ft at 6:00AM Aug 09, 2020Observed: 1.48 ft at 6:15AM Aug 09, 2020Observed: 1.48 ft at 6:30AM Aug 09, 2020Observed: 1.49 ft at 6:45AM Aug 09, 2020Observed: 1.49 ft at 7:00AM Aug 09, 2020Observed: 1.49 ft at 7:15AM Aug 09, 2020Observed: 1.49 ft at 7:30AM Aug 09, 2020Observed: 1.49 ft at 7:45AM Aug 09, 2020Observed: 1.49 ft at 8:00AM Aug 09, 2020Observed: 1.49 ft at 8:15AM Aug 09, 2020Observed: 1.49 ft at 8:30AM Aug 09, 2020Observed: 1.49 ft at 8:45AM Aug 09, 2020Observed: 1.49 ft at 9:00AM Aug 09, 2020Observed: 1.49 ft at 9:15AM Aug 09, 2020Observed: 1.49 ft at 9:30AM Aug 09, 2020Observed: 1.49 ft at 9:45AM Aug 09, 2020Observed: 1.49 ft at 10:00AM Aug 09, 2020Observed: 1.49 ft at 10:15AM Aug 09, 2020Observed: 1.49 ft at 10:30AM Aug 09, 2020Observed: 1.49 ft at 10:45AM Aug 09, 2020Observed: 1.49 ft at 11:00AM Aug 09, 2020Observed: 1.49 ft at 11:15AM Aug 09, 2020Observed: 1.49 ft at 11:30AM Aug 09, 2020Observed: 1.49 ft at 11:45AM Aug 09, 2020Observed: 1.49 ft at 12:00PM Aug 09, 2020Observed: 1.49 ft at 12:15PM Aug 09, 2020Observed: 1.49 ft at 12:30PM Aug 09, 2020Observed: 1.49 ft at 12:45PM Aug 09, 2020Observed: 1.49 ft at 1:00PM Aug 09, 2020Observed: 1.49 ft at 1:15PM Aug 09, 2020Observed: 1.49 ft at 1:30PM Aug 09, 2020Observed: 1.49 ft at 1:45PM Aug 09, 2020Observed: 1.49 ft at 2:00PM Aug 09, 2020Observed: 1.49 ft at 2:15PM Aug 09, 2020Observed: 1.49 ft at 2:30PM Aug 09, 2020Observed: 1.49 ft at 2:45PM Aug 09, 2020Observed: 1.49 ft at 3:00PM Aug 09, 2020Observed: 1.48 ft at 3:15PM Aug 09, 2020Observed: 1.48 ft at 3:30PM Aug 09, 2020Observed: 1.48 ft at 3:45PM Aug 09, 2020Observed: 1.48 ft at 4:00PM Aug 09, 2020Observed: 1.48 ft at 4:15PM Aug 09, 2020Observed: 1.48 ft at 4:30PM Aug 09, 2020Observed: 1.48 ft at 4:45PM Aug 09, 2020Observed: 1.48 ft at 5:00PM Aug 09, 2020Observed: 1.48 ft at 5:15PM Aug 09, 2020Observed: 1.48 ft at 5:30PM Aug 09, 2020Observed: 1.48 ft at 5:45PM Aug 09, 2020Observed: 1.48 ft at 6:00PM Aug 09, 2020Observed: 1.48 ft at 6:15PM Aug 09, 2020Observed: 1.48 ft at 6:30PM Aug 09, 2020Observed: 1.48 ft at 6:45PM Aug 09, 2020Observed: 1.48 ft at 7:00PM Aug 09, 2020Observed: 1.48 ft at 7:15PM Aug 09, 2020Observed: 1.48 ft at 7:30PM Aug 09, 2020Observed: 1.48 ft at 7:45PM Aug 09, 2020Observed: 1.48 ft at 8:00PM Aug 09, 2020Observed: 1.48 ft at 8:15PM Aug 09, 2020Observed: 1.48 ft at 8:30PM Aug 09, 2020Observed: 1.48 ft at 8:45PM Aug 09, 2020Observed: 1.48 ft at 9:00PM Aug 09, 2020Observed: 1.48 ft at 9:15PM Aug 09, 2020Observed: 1.48 ft at 9:30PM Aug 09, 2020Observed: 1.48 ft at 9:45PM Aug 09, 2020Observed: 1.48 ft at 10:00PM Aug 09, 2020Observed: 1.48 ft at 10:15PM Aug 09, 2020Observed: 1.48 ft at 10:30PM Aug 09, 2020Observed: 1.48 ft at 10:45PM Aug 09, 2020Observed: 1.48 ft at 11:00PM Aug 09, 2020Observed: 1.48 ft at 11:15PM Aug 09, 2020Observed: 1.48 ft at 11:30PM Aug 09, 2020Observed: 1.48 ft at 11:45PM Aug 09, 2020Observed: 1.48 ft at 12:00AM Aug 10, 2020Observed: 1.48 ft at 12:15AM Aug 10, 2020Observed: 1.48 ft at 12:30AM Aug 10, 2020Observed: 1.48 ft at 12:45AM Aug 10, 2020Observed: 1.48 ft at 1:00AM Aug 10, 2020Observed: 1.48 ft at 1:15AM Aug 10, 2020Observed: 1.49 ft at 1:30AM Aug 10, 2020Observed: 1.49 ft at 1:45AM Aug 10, 2020Observed: 1.49 ft at 2:00AM Aug 10, 2020Observed: 1.49 ft at 2:15AM Aug 10, 2020Observed: 1.49 ft at 2:30AM Aug 10, 2020Observed: 1.49 ft at 2:45AM Aug 10, 2020Observed: 1.49 ft at 3:00AM Aug 10, 2020Observed: 1.49 ft at 3:15AM Aug 10, 2020Observed: 1.49 ft at 3:30AM Aug 10, 2020Observed: 1.49 ft at 3:45AM Aug 10, 2020Observed: 1.49 ft at 4:00AM Aug 10, 2020Observed: 1.49 ft at 4:15AM Aug 10, 2020Observed: 1.49 ft at 4:30AM Aug 10, 2020Observed: 1.49 ft at 4:45AM Aug 10, 2020Highest Observation: 1.5 ft at 5:00AM Aug 10, 2020Highest Observation: 1.5 ft at 5:15AM Aug 10, 2020Highest Observation: 1.5 ft at 5:30AM Aug 10, 2020Highest Observation: 1.5 ft at 5:45AM Aug 10, 2020Highest Observation: 1.5 ft at 6:00AM Aug 10, 2020Highest Observation: 1.5 ft at 6:15AM Aug 10, 2020Highest Observation: 1.5 ft at 6:30AM Aug 10, 2020Highest Observation: 1.5 ft at 6:45AM Aug 10, 2020Highest Observation: 1.5 ft at 7:00AM Aug 10, 2020Highest Observation: 1.5 ft at 7:15AM Aug 10, 2020Highest Observation: 1.5 ft at 7:30AM Aug 10, 2020Highest Observation: 1.5 ft at 7:45AM Aug 10, 2020Highest Observation: 1.5 ft at 8:00AM Aug 10, 2020Highest Observation: 1.5 ft at 8:15AM Aug 10, 2020Highest Observation: 1.5 ft at 8:30AM Aug 10, 2020Highest Observation: 1.5 ft at 8:45AM Aug 10, 2020Highest Observation: 1.5 ft at 9:00AM Aug 10, 2020Highest Observation: 1.5 ft at 9:15AM Aug 10, 2020Highest Observation: 1.5 ft at 9:30AM Aug 10, 2020Highest Observation: 1.5 ft at 9:45AM Aug 10, 2020Highest Observation: 1.5 ft at 10:00AM Aug 10, 2020Highest Observation: 1.5 ft at 10:15AM Aug 10, 2020Highest Observation: 1.5 ft at 10:30AM Aug 10, 2020Highest Observation: 1.5 ft at 10:45AM Aug 10, 2020Highest Observation: 1.5 ft at 11:00AM Aug 10, 2020Highest Observation: 1.5 ft at 11:15AM Aug 10, 2020Highest Observation: 1.5 ft at 11:30AM Aug 10, 2020Highest Observation: 1.5 ft at 11:45AM Aug 10, 2020Highest Observation: 1.5 ft at 12:00PM Aug 10, 2020Highest Observation: 1.5 ft at 12:15PM Aug 10, 2020Highest Observation: 1.5 ft at 12:30PM Aug 10, 2020Highest Observation: 1.5 ft at 12:45PM Aug 10, 2020Highest Observation: 1.5 ft at 1:00PM Aug 10, 2020Highest Observation: 1.5 ft at 1:15PM Aug 10, 2020Highest Observation: 1.5 ft at 1:30PM Aug 10, 2020Highest Observation: 1.5 ft at 1:45PM Aug 10, 2020Highest Observation: 1.5 ft at 2:00PM Aug 10, 2020Highest Observation: 1.5 ft at 2:15PM Aug 10, 2020Highest Observation: 1.5 ft at 2:30PM Aug 10, 2020Highest Observation: 1.5 ft at 2:45PM Aug 10, 2020Highest Observation: 1.5 ft at 3:00PM Aug 10, 2020Highest Observation: 1.5 ft at 3:15PM Aug 10, 2020Highest Observation: 1.5 ft at 3:30PM Aug 10, 2020Observed: 1.49 ft at 3:45PM Aug 10, 2020Observed: 1.49 ft at 4:00PM Aug 10, 2020Observed: 1.49 ft at 4:15PM Aug 10, 2020Observed: 1.49 ft at 4:30PM Aug 10, 2020Observed: 1.49 ft at 4:45PM Aug 10, 2020Observed: 1.49 ft at 5:00PM Aug 10, 2020Observed: 1.49 ft at 5:15PM Aug 10, 2020Observed: 1.49 ft at 5:30PM Aug 10, 2020Observed: 1.49 ft at 5:45PM Aug 10, 2020Observed: 1.49 ft at 6:00PM Aug 10, 2020Observed: 1.49 ft at 6:15PM Aug 10, 2020Observed: 1.48 ft at 6:30PM Aug 10, 2020Observed: 1.48 ft at 6:45PM Aug 10, 2020USGS--Water Resources of the United StatesBGCS2(plotting HGIRG) Graph Created (8:00PM Aug 10, 2020)ObservedLatest observed value: 1.48 ft at 6:45 PM CDT 10-Aug-2020. Flood Stage is 12 ft
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About this graph
Tabular Data (UTC)
Tabular Data (CDT)
XML Data
RSS Files
Datum: Not Available
Metadata
NOTE: Graphical forecasts are not available for the Whetstone River above Whetstone River near Big Stone City. During times of high water, forecast crest information can be found in the text products.
Return to Area Map
Flood Categories (in feet)
Major Flood Stage: 20
Moderate Flood Stage: 15
Flood Stage: 12
Action Stage: 11
Low Stage (in feet): -9999

Historic Crests
(1) 26.00 ft on 06/01/1919
(2) 15.93 ft on 04/08/2001
(3) 15.08 ft on 03/13/2007
(4) 14.32 ft on 04/08/1969
(5) 14.21 ft on 04/06/1997
Show More Historic Crests

(P): Preliminary values subject to further review.

Recent Crests
(1) 11.97 ft on 03/22/2019
(2) 7.63 ft on 04/23/2018
(3) 11.25 ft on 09/25/2017
(4) 5.46 ft on 07/12/2016
(5) 3.18 ft on 07/07/2015
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.
Flood Impacts & Photos Collapse
If you notice any errors in the below information, please contact our Webmaster
12 The road 2 miles west and 1 mile south of the gauge floods.
About This Location Collapse

Latitude: 45.291667° N, Longitude: 96.487222° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame		 Gauge Height Flood Stage Uses
NWS stage 0 ft 12 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 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
Aberdeen Weather Forecast Office
824 Brown County 14 South
Aberdeen, SD 57401
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