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Web Portal Changes: The Advanced Hydrologic Prediction Service (AHPS) hosted at https://water.weather.gov will be replaced by the National Water Prediction Service (NWPS), with a target of March 2024. Existing AHPS content and features will be preserved and expanded within NWPS.

Experimental National Water Center Products: The National Hydrologic Discussion, Area Hydrologic Discussion, and Flood Hazard Outlook, and real-time geospatial services depicting River Forecast Center and National Water Model forecasts, continue to be accessible via https://www.weather.gov/owp/operations, as described in the StoryMap here.



Hydrograph River at a Glance Download
South Fork Bad River near Cottonwood Stage (ft)Flow (cfs)Observed: 4.37 ft at 4:30PM Sep 20, 2023Observed: 4.37 ft at 4:45PM Sep 20, 2023Observed: 4.38 ft at 5:00PM Sep 20, 2023Observed: 4.39 ft at 5:15PM Sep 20, 2023Observed: 4.37 ft at 5:30PM Sep 20, 2023Observed: 4.37 ft at 5:45PM Sep 20, 2023Observed: 4.37 ft at 6:00PM Sep 20, 2023Observed: 4.37 ft at 6:15PM Sep 20, 2023Observed: 4.37 ft at 6:30PM Sep 20, 2023Observed: 4.37 ft at 6:45PM Sep 20, 2023Observed: 4.37 ft at 7:00PM Sep 20, 2023Observed: 4.37 ft at 7:15PM Sep 20, 2023Observed: 4.37 ft at 7:30PM Sep 20, 2023Observed: 4.37 ft at 7:45PM Sep 20, 2023Observed: 4.37 ft at 8:00PM Sep 20, 2023Observed: 4.37 ft at 8:15PM Sep 20, 2023Observed: 4.37 ft at 8:30PM Sep 20, 2023Observed: 4.37 ft at 8:45PM Sep 20, 2023Observed: 4.37 ft at 9:00PM Sep 20, 2023Observed: 4.37 ft at 9:15PM Sep 20, 2023Observed: 4.37 ft at 9:16PM Sep 20, 2023Observed: 4.37 ft at 9:30PM Sep 20, 2023Observed: 4.37 ft at 9:31PM Sep 20, 2023Observed: 4.37 ft at 9:45PM Sep 20, 2023Observed: 4.37 ft at 9:46PM Sep 20, 2023Observed: 4.37 ft at 10:00PM Sep 20, 2023Observed: 4.37 ft at 10:15PM Sep 20, 2023Observed: 4.37 ft at 10:30PM Sep 20, 2023Observed: 4.37 ft at 10:45PM Sep 20, 2023Observed: 4.37 ft at 11:00PM Sep 20, 2023Observed: 4.37 ft at 11:15PM Sep 20, 2023Observed: 4.37 ft at 11:30PM Sep 20, 2023Observed: 4.38 ft at 11:45PM Sep 20, 2023Observed: 4.37 ft at 12:00AM Sep 21, 2023Observed: 4.37 ft at 12:15AM Sep 21, 2023Observed: 4.37 ft at 12:30AM Sep 21, 2023Observed: 4.37 ft at 12:45AM Sep 21, 2023Observed: 4.37 ft at 1:00AM Sep 21, 2023Observed: 4.37 ft at 1:15AM Sep 21, 2023Observed: 4.37 ft at 1:30AM Sep 21, 2023Observed: 4.37 ft at 1:45AM Sep 21, 2023Observed: 4.38 ft at 2:00AM Sep 21, 2023Observed: 4.37 ft at 2:15AM Sep 21, 2023Observed: 4.38 ft at 2:30AM Sep 21, 2023Observed: 4.38 ft at 2:45AM Sep 21, 2023Observed: 4.37 ft at 3:00AM Sep 21, 2023Observed: 4.38 ft at 3:15AM Sep 21, 2023Observed: 4.37 ft at 3:30AM Sep 21, 2023Observed: 4.38 ft at 3:45AM Sep 21, 2023Observed: 4.37 ft at 4:00AM Sep 21, 2023Observed: 4.38 ft at 4:15AM Sep 21, 2023Observed: 4.38 ft at 4:30AM Sep 21, 2023Observed: 4.38 ft at 4:45AM Sep 21, 2023Observed: 4.38 ft at 5:00AM Sep 21, 2023Observed: 4.38 ft at 5:15AM Sep 21, 2023Observed: 4.38 ft at 5:16AM Sep 21, 2023Observed: 4.38 ft at 5:30AM Sep 21, 2023Observed: 4.38 ft at 5:31AM Sep 21, 2023Observed: 4.38 ft at 5:45AM Sep 21, 2023Observed: 4.38 ft at 5:46AM Sep 21, 2023Observed: 4.38 ft at 6:00AM Sep 21, 2023Observed: 4.38 ft at 6:15AM Sep 21, 2023Observed: 4.38 ft at 6:30AM Sep 21, 2023Observed: 4.38 ft at 6:45AM Sep 21, 2023Observed: 4.38 ft at 7:00AM Sep 21, 2023Observed: 4.38 ft at 7:15AM Sep 21, 2023Observed: 4.38 ft at 7:30AM Sep 21, 2023Observed: 4.38 ft at 7:45AM Sep 21, 2023Observed: 4.38 ft at 8:00AM Sep 21, 2023Observed: 4.37 ft at 8:15AM Sep 21, 2023Observed: 4.37 ft at 8:30AM Sep 21, 2023Observed: 4.38 ft at 8:45AM Sep 21, 2023Observed: 4.38 ft at 9:00AM Sep 21, 2023Observed: 4.38 ft at 9:15AM Sep 21, 2023Observed: 4.38 ft at 9:30AM Sep 21, 2023Observed: 4.38 ft at 9:45AM Sep 21, 2023Observed: 4.38 ft at 10:00AM Sep 21, 2023Observed: 4.38 ft at 10:15AM Sep 21, 2023Observed: 4.38 ft at 10:30AM Sep 21, 2023Observed: 4.38 ft at 10:45AM Sep 21, 2023Observed: 4.38 ft at 11:00AM Sep 21, 2023Observed: 4.38 ft at 11:15AM Sep 21, 2023Observed: 4.38 ft at 11:30AM Sep 21, 2023Observed: 4.38 ft at 11:45AM Sep 21, 2023Observed: 4.38 ft at 12:00PM Sep 21, 2023Observed: 4.38 ft at 12:15PM Sep 21, 2023Observed: 4.38 ft at 12:30PM Sep 21, 2023Observed: 4.38 ft at 12:45PM Sep 21, 2023Observed: 4.38 ft at 1:00PM Sep 21, 2023Observed: 4.38 ft at 1:15PM Sep 21, 2023Observed: 4.38 ft at 1:17PM Sep 21, 2023Observed: 4.38 ft at 1:30PM Sep 21, 2023Observed: 4.38 ft at 1:32PM Sep 21, 2023Observed: 4.38 ft at 1:45PM Sep 21, 2023Observed: 4.38 ft at 1:47PM Sep 21, 2023Observed: 4.38 ft at 2:00PM Sep 21, 2023Observed: 4.38 ft at 2:15PM Sep 21, 2023Observed: 4.38 ft at 2:30PM Sep 21, 2023Observed: 4.38 ft at 2:45PM Sep 21, 2023Observed: 4.38 ft at 3:00PM Sep 21, 2023Observed: 4.38 ft at 3:15PM Sep 21, 2023Observed: 4.38 ft at 3:30PM Sep 21, 2023Observed: 4.38 ft at 3:45PM Sep 21, 2023Observed: 4.38 ft at 4:00PM Sep 21, 2023Observed: 4.38 ft at 4:15PM Sep 21, 2023Observed: 4.38 ft at 4:30PM Sep 21, 2023Observed: 4.38 ft at 4:45PM Sep 21, 2023Observed: 4.38 ft at 5:00PM Sep 21, 2023Observed: 4.38 ft at 5:15PM Sep 21, 2023Observed: 4.38 ft at 5:30PM Sep 21, 2023Observed: 4.38 ft at 5:45PM Sep 21, 2023Observed: 4.38 ft at 6:00PM Sep 21, 2023Observed: 4.38 ft at 6:15PM Sep 21, 2023Observed: 4.38 ft at 6:30PM Sep 21, 2023Observed: 4.38 ft at 6:45PM Sep 21, 2023Observed: 4.38 ft at 7:00PM Sep 21, 2023Observed: 4.38 ft at 7:15PM Sep 21, 2023Observed: 4.38 ft at 7:30PM Sep 21, 2023Observed: 4.38 ft at 7:45PM Sep 21, 2023Observed: 4.38 ft at 8:00PM Sep 21, 2023Observed: 4.38 ft at 8:15PM Sep 21, 2023Observed: 4.38 ft at 8:30PM Sep 21, 2023Observed: 4.38 ft at 8:45PM Sep 21, 2023Observed: 4.38 ft at 9:00PM Sep 21, 2023Observed: 4.38 ft at 9:15PM Sep 21, 2023Observed: 4.38 ft at 9:16PM Sep 21, 2023Observed: 4.38 ft at 9:30PM Sep 21, 2023Observed: 4.38 ft at 9:31PM Sep 21, 2023Observed: 4.38 ft at 9:45PM Sep 21, 2023Observed: 4.38 ft at 9:46PM Sep 21, 2023Observed: 4.38 ft at 10:00PM Sep 21, 2023Observed: 4.38 ft at 10:15PM Sep 21, 2023Observed: 4.38 ft at 10:30PM Sep 21, 2023Observed: 4.38 ft at 10:45PM Sep 21, 2023Observed: 4.38 ft at 11:00PM Sep 21, 2023Observed: 4.38 ft at 11:15PM Sep 21, 2023Observed: 4.38 ft at 11:30PM Sep 21, 2023Observed: 4.38 ft at 11:45PM Sep 21, 2023Observed: 4.38 ft at 12:00AM Sep 22, 2023Observed: 4.38 ft at 12:15AM Sep 22, 2023Observed: 4.38 ft at 12:30AM Sep 22, 2023Observed: 4.38 ft at 12:45AM Sep 22, 2023Observed: 4.38 ft at 1:00AM Sep 22, 2023Observed: 4.38 ft at 1:15AM Sep 22, 2023Observed: 4.38 ft at 1:30AM Sep 22, 2023Observed: 4.38 ft at 1:45AM Sep 22, 2023Observed: 4.38 ft at 2:00AM Sep 22, 2023Observed: 4.38 ft at 2:15AM Sep 22, 2023Observed: 4.38 ft at 2:30AM Sep 22, 2023Observed: 4.38 ft at 2:45AM Sep 22, 2023Observed: 4.38 ft at 3:00AM Sep 22, 2023Observed: 4.38 ft at 3:15AM Sep 22, 2023Observed: 4.38 ft at 3:30AM Sep 22, 2023Observed: 4.38 ft at 3:45AM Sep 22, 2023Observed: 4.38 ft at 4:00AM Sep 22, 2023Observed: 4.38 ft at 4:15AM Sep 22, 2023Observed: 4.38 ft at 4:30AM Sep 22, 2023Observed: 4.38 ft at 4:45AM Sep 22, 2023Observed: 4.38 ft at 5:00AM Sep 22, 2023Observed: 4.38 ft at 5:15AM Sep 22, 2023Observed: 4.38 ft at 5:17AM Sep 22, 2023Observed: 4.38 ft at 5:30AM Sep 22, 2023Observed: 4.38 ft at 5:32AM Sep 22, 2023Observed: 4.38 ft at 5:45AM Sep 22, 2023Observed: 4.38 ft at 5:47AM Sep 22, 2023Observed: 4.38 ft at 6:00AM Sep 22, 2023Observed: 4.38 ft at 6:15AM Sep 22, 2023Observed: 4.38 ft at 6:30AM Sep 22, 2023Observed: 4.38 ft at 6:45AM Sep 22, 2023Observed: 4.38 ft at 7:00AM Sep 22, 2023Observed: 4.38 ft at 7:15AM Sep 22, 2023Observed: 4.38 ft at 7:30AM Sep 22, 2023Observed: 4.38 ft at 7:45AM Sep 22, 2023Observed: 4.38 ft at 8:00AM Sep 22, 2023Observed: 4.38 ft at 8:15AM Sep 22, 2023Observed: 4.38 ft at 8:30AM Sep 22, 2023Observed: 4.38 ft at 8:45AM Sep 22, 2023Observed: 4.38 ft at 9:00AM Sep 22, 2023Observed: 4.38 ft at 9:15AM Sep 22, 2023Observed: 4.38 ft at 9:30AM Sep 22, 2023Observed: 4.38 ft at 9:45AM Sep 22, 2023Observed: 4.37 ft at 10:00AM Sep 22, 2023Observed: 4.38 ft at 10:15AM Sep 22, 2023Observed: 4.38 ft at 10:30AM Sep 22, 2023Observed: 4.38 ft at 10:45AM Sep 22, 2023Observed: 4.38 ft at 11:00AM Sep 22, 2023Observed: 4.38 ft at 11:15AM Sep 22, 2023Observed: 4.38 ft at 11:30AM Sep 22, 2023Observed: 4.38 ft at 11:45AM Sep 22, 2023Observed: 4.38 ft at 12:00PM Sep 22, 2023Observed: 4.38 ft at 12:15PM Sep 22, 2023Observed: 4.38 ft at 12:30PM Sep 22, 2023Observed: 4.38 ft at 12:45PM Sep 22, 2023Observed: 4.38 ft at 1:00PM Sep 22, 2023Observed: 4.38 ft at 1:15PM Sep 22, 2023Observed: 4.38 ft at 1:16PM Sep 22, 2023Observed: 4.38 ft at 1:30PM Sep 22, 2023Observed: 4.38 ft at 1:31PM Sep 22, 2023Observed: 4.38 ft at 1:45PM Sep 22, 2023Observed: 4.38 ft at 1:46PM Sep 22, 2023Observed: 4.38 ft at 2:00PM Sep 22, 2023Observed: 4.38 ft at 2:15PM Sep 22, 2023Observed: 4.39 ft at 2:30PM Sep 22, 2023Observed: 4.39 ft at 2:45PM Sep 22, 2023Observed: 4.39 ft at 3:00PM Sep 22, 2023Observed: 4.39 ft at 3:15PM Sep 22, 2023Observed: 4.39 ft at 3:30PM Sep 22, 2023Observed: 4.4 ft at 3:45PM Sep 22, 2023Observed: 4.39 ft at 4:00PM Sep 22, 2023Observed: 4.39 ft at 4:15PM Sep 22, 2023Observed: 4.39 ft at 4:30PM Sep 22, 2023Observed: 4.39 ft at 4:45PM Sep 22, 2023Observed: 4.39 ft at 5:00PM Sep 22, 2023Observed: 4.39 ft at 5:15PM Sep 22, 2023Observed: 4.41 ft at 5:30PM Sep 22, 2023Observed: 4.39 ft at 5:45PM Sep 22, 2023Observed: 4.39 ft at 6:00PM Sep 22, 2023Observed: 4.39 ft at 6:15PM Sep 22, 2023Observed: 4.39 ft at 6:30PM Sep 22, 2023Observed: 4.39 ft at 6:45PM Sep 22, 2023Observed: 4.39 ft at 7:00PM Sep 22, 2023Observed: 4.39 ft at 7:15PM Sep 22, 2023Observed: 4.39 ft at 7:30PM Sep 22, 2023Observed: 4.39 ft at 7:45PM Sep 22, 2023Observed: 4.39 ft at 8:00PM Sep 22, 2023Observed: 4.39 ft at 8:15PM Sep 22, 2023Observed: 4.39 ft at 8:30PM Sep 22, 2023Observed: 4.39 ft at 8:45PM Sep 22, 2023Observed: 4.39 ft at 9:00PM Sep 22, 2023Observed: 4.39 ft at 9:15PM Sep 22, 2023Observed: 4.39 ft at 9:16PM Sep 22, 2023Observed: 4.39 ft at 9:30PM Sep 22, 2023Observed: 4.39 ft at 9:31PM Sep 22, 2023Observed: 4.39 ft at 9:45PM Sep 22, 2023Observed: 4.39 ft at 9:46PM Sep 22, 2023Observed: 4.39 ft at 10:00PM Sep 22, 2023Observed: 4.39 ft at 10:15PM Sep 22, 2023Observed: 4.39 ft at 10:30PM Sep 22, 2023Observed: 4.39 ft at 10:45PM Sep 22, 2023Observed: 4.39 ft at 11:00PM Sep 22, 2023Observed: 4.39 ft at 11:15PM Sep 22, 2023Observed: 4.39 ft at 11:30PM Sep 22, 2023Observed: 4.39 ft at 11:45PM Sep 22, 2023Observed: 4.39 ft at 12:00AM Sep 23, 2023Observed: 4.39 ft at 12:15AM Sep 23, 2023Observed: 4.39 ft at 12:30AM Sep 23, 2023Observed: 4.39 ft at 12:45AM Sep 23, 2023Observed: 4.39 ft at 1:00AM Sep 23, 2023Observed: 4.39 ft at 1:15AM Sep 23, 2023Observed: 4.4 ft at 1:30AM Sep 23, 2023Observed: 4.39 ft at 1:45AM Sep 23, 2023Observed: 4.39 ft at 2:00AM Sep 23, 2023Observed: 4.39 ft at 2:15AM Sep 23, 2023Observed: 4.4 ft at 2:30AM Sep 23, 2023Observed: 4.42 ft at 2:45AM Sep 23, 2023Observed: 4.41 ft at 3:00AM Sep 23, 2023Observed: 4.41 ft at 3:15AM Sep 23, 2023Observed: 4.41 ft at 3:30AM Sep 23, 2023Highest Observation: 4.45 ft at 3:45AM Sep 23, 2023Observed: 4.42 ft at 4:00AM Sep 23, 2023Observed: 4.42 ft at 4:15AM Sep 23, 2023Observed: 4.42 ft at 4:30AM Sep 23, 2023Observed: 4.42 ft at 4:45AM Sep 23, 2023Observed: 4.42 ft at 5:00AM Sep 23, 2023Observed: 4.43 ft at 5:15AM Sep 23, 2023Observed: 4.43 ft at 5:30AM Sep 23, 2023Observed: 4.43 ft at 5:31AM Sep 23, 2023Observed: 4.43 ft at 5:45AM Sep 23, 2023Observed: 4.43 ft at 5:46AM Sep 23, 2023Observed: 4.43 ft at 6:00AM Sep 23, 2023Observed: 4.43 ft at 6:01AM Sep 23, 2023Observed: 4.43 ft at 6:15AM Sep 23, 2023Observed: 4.43 ft at 6:30AM Sep 23, 2023Observed: 4.43 ft at 6:45AM Sep 23, 2023Observed: 4.43 ft at 7:00AM Sep 23, 2023Observed: 4.43 ft at 7:15AM Sep 23, 2023Observed: 4.43 ft at 7:30AM Sep 23, 2023Observed: 4.43 ft at 7:45AM Sep 23, 2023Observed: 4.43 ft at 8:00AM Sep 23, 2023Observed: 4.43 ft at 8:15AM Sep 23, 2023Observed: 4.43 ft at 8:30AM Sep 23, 2023Highest Observation: 4.45 ft at 8:45AM Sep 23, 2023Observed: 4.43 ft at 9:00AM Sep 23, 2023Observed: 4.43 ft at 9:15AM Sep 23, 2023Observed: 4.43 ft at 9:30AM Sep 23, 2023Observed: 4.43 ft at 9:45AM Sep 23, 2023Observed: 4.43 ft at 10:00AM Sep 23, 2023Observed: 4.43 ft at 10:15AM Sep 23, 2023Observed: 4.42 ft at 10:30AM Sep 23, 2023Observed: 4.42 ft at 10:45AM Sep 23, 2023Observed: 4.43 ft at 11:00AM Sep 23, 2023Observed: 4.42 ft at 11:15AM Sep 23, 2023Observed: 4.42 ft at 11:30AM Sep 23, 2023Observed: 4.42 ft at 11:45AM Sep 23, 2023Observed: 4.42 ft at 12:00PM Sep 23, 2023Observed: 4.42 ft at 12:15PM Sep 23, 2023Observed: 4.42 ft at 12:30PM Sep 23, 2023Observed: 4.42 ft at 12:45PM Sep 23, 2023Observed: 4.42 ft at 1:00PM Sep 23, 2023Observed: 4.42 ft at 1:15PM Sep 23, 2023Observed: 4.42 ft at 1:30PM Sep 23, 2023Observed: 4.42 ft at 1:32PM Sep 23, 2023Observed: 4.42 ft at 1:45PM Sep 23, 2023Observed: 4.42 ft at 1:47PM Sep 23, 2023Observed: 4.41 ft at 2:00PM Sep 23, 2023Observed: 4.41 ft at 2:02PM Sep 23, 2023Observed: 4.42 ft at 2:15PM Sep 23, 2023Observed: 4.42 ft at 2:30PM Sep 23, 2023Observed: 4.41 ft at 2:45PM Sep 23, 2023Observed: 4.41 ft at 3:00PM Sep 23, 2023Observed: 4.41 ft at 3:15PM Sep 23, 2023Observed: 4.42 ft at 3:30PM Sep 23, 2023USGS--Water Resources of the United StatesCTTS2(plotting HGIRG) Graph Created (4:24PM Sep 23, 2023)ObservedLatest observed value: 4.42 ft at 3:30 PM MDT 23-Sep-2023. Flood Stage is 12 ft
Printable Image
About this graph
Tabular Data (UTC)
Tabular Data (MDT)
XML Data
RSS Files
Datum: NAVD88
Metadata
NOTE: Forecasts are not available for the South Fork Bad River near Cottonwood. Only observed stages are available for this point.
Return to Area Map
Downstream Gauge Downstream Gauge - near Midland
Flood Categories (in feet)
Major Flood Stage: 18
Moderate Flood Stage: 16
Flood Stage: 12
Action Stage: 10
Low Stage (in feet): -9999

Historic Crests
(1) 17.89 ft on 05/31/1991
(2) 16.71 ft on 05/28/1996
(3) 16.59 ft on 05/22/2019
(4) 15.75 ft on 02/08/1997
(5) 14.39 ft on 06/03/1997
Show More Historic Crests

(P): Preliminary values subject to further review.

Recent Crests
(1) 7.89 ft on 07/05/2022
(2) 7.64 ft on 05/23/2021
(3) 6.92 ft on 07/10/2020
(4) 16.59 ft on 05/22/2019
(5) 10.68 ft on 06/22/2018
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.
Flood Impacts & Photos Collapse
If you notice any errors in the below information, please contact our Webmaster
18 Major flood stage. Extensive flooding of agricultural land and inundation of structures and roads.
16 Moderate flood stage. Extensive flooding of agricultural land with some inundation of structures and roads possible.
12 Flood stage. Flooding of agricultural land begins.
10 Action stage. Low land flooding along Cottonwood Creek especially along the east side of the river.
About This Location Collapse

Latitude: 43.969017° N, Longitude: 101.767229° 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 2244.44 2256.44 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:
Resources Collapse
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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