Skip Navigation Link weather.gov  
NOAA logo - Click to go to the NOAA homepage National Weather Service NWS logo - Click to go to the NWS homepage
Advanced Hydrologic Prediction Service
Image background of Navigation bar Left Home News Organization
Bookmark and Share Navigation Bar End Cap

  

National Conditions
    Rivers
    Satellite
    Climate
    Observed Precip

Local Conditions
    Warnings
    Weather Forecast
    Radar

AHPS Documentation
    User Guide
    User Brochure

What is AHPS?
    Facts
    Our Partners

Feedback/Questions
    Provide Feedback
    Ask Questions

When flooded turn around don't drown
FloodSmart
USA.gov Official Web Portal
 
Hydrograph River at a Glance Download
South Fork Bad River near Cottonwood Stage (ft)Flow (cfs)Highest Observation: 4.74 ft at 7:45AM Oct 18, 2021Highest Observation: 4.74 ft at 8:00AM Oct 18, 2021Highest Observation: 4.74 ft at 8:15AM Oct 18, 2021Highest Observation: 4.74 ft at 8:30AM Oct 18, 2021Observed: 4.73 ft at 8:45AM Oct 18, 2021Observed: 4.73 ft at 9:00AM Oct 18, 2021Observed: 4.73 ft at 9:15AM Oct 18, 2021Observed: 4.72 ft at 9:30AM Oct 18, 2021Observed: 4.72 ft at 9:45AM Oct 18, 2021Observed: 4.71 ft at 10:00AM Oct 18, 2021Observed: 4.71 ft at 10:15AM Oct 18, 2021Observed: 4.71 ft at 10:30AM Oct 18, 2021Observed: 4.7 ft at 10:45AM Oct 18, 2021Observed: 4.7 ft at 11:00AM Oct 18, 2021Observed: 4.7 ft at 11:15AM Oct 18, 2021Observed: 4.69 ft at 11:30AM Oct 18, 2021Observed: 4.69 ft at 11:45AM Oct 18, 2021Observed: 4.68 ft at 12:00PM Oct 18, 2021Observed: 4.68 ft at 12:15PM Oct 18, 2021Observed: 4.68 ft at 12:30PM Oct 18, 2021Observed: 4.67 ft at 12:45PM Oct 18, 2021Observed: 4.67 ft at 1:00PM Oct 18, 2021Observed: 4.67 ft at 1:15PM Oct 18, 2021Observed: 4.67 ft at 1:30PM Oct 18, 2021Observed: 4.67 ft at 1:45PM Oct 18, 2021Observed: 4.66 ft at 2:00PM Oct 18, 2021Observed: 4.66 ft at 2:15PM Oct 18, 2021Observed: 4.66 ft at 2:30PM Oct 18, 2021Observed: 4.66 ft at 2:45PM Oct 18, 2021Observed: 4.66 ft at 3:00PM Oct 18, 2021Observed: 4.66 ft at 3:15PM Oct 18, 2021Observed: 4.66 ft at 3:30PM Oct 18, 2021Observed: 4.65 ft at 3:45PM Oct 18, 2021Observed: 4.65 ft at 4:00PM Oct 18, 2021Observed: 4.66 ft at 4:15PM Oct 18, 2021Observed: 4.65 ft at 4:30PM Oct 18, 2021Observed: 4.67 ft at 5:45PM Oct 18, 2021Observed: 4.67 ft at 6:00PM Oct 18, 2021Observed: 4.67 ft at 6:15PM Oct 18, 2021Observed: 4.67 ft at 6:30PM Oct 18, 2021Observed: 4.67 ft at 6:45PM Oct 18, 2021Observed: 4.66 ft at 7:00PM Oct 18, 2021Observed: 4.67 ft at 7:15PM Oct 18, 2021Observed: 4.67 ft at 7:30PM Oct 18, 2021Observed: 4.67 ft at 7:45PM Oct 18, 2021Observed: 4.66 ft at 8:00PM Oct 18, 2021Observed: 4.66 ft at 8:15PM Oct 18, 2021Observed: 4.66 ft at 8:30PM Oct 18, 2021Observed: 4.66 ft at 8:45PM Oct 18, 2021Observed: 4.66 ft at 9:00PM Oct 18, 2021Observed: 4.66 ft at 9:15PM Oct 18, 2021Observed: 4.65 ft at 9:30PM Oct 18, 2021Observed: 4.65 ft at 9:45PM Oct 18, 2021Observed: 4.65 ft at 10:00PM Oct 18, 2021Observed: 4.65 ft at 10:15PM Oct 18, 2021Observed: 4.65 ft at 10:30PM Oct 18, 2021Observed: 4.65 ft at 10:45PM Oct 18, 2021Observed: 4.65 ft at 11:00PM Oct 18, 2021Observed: 4.65 ft at 11:15PM Oct 18, 2021Observed: 4.65 ft at 11:30PM Oct 18, 2021Observed: 4.65 ft at 11:45PM Oct 18, 2021Observed: 4.64 ft at 12:00AM Oct 19, 2021Observed: 4.64 ft at 12:15AM Oct 19, 2021Observed: 4.64 ft at 12:30AM Oct 19, 2021Observed: 4.64 ft at 12:45AM Oct 19, 2021Observed: 4.64 ft at 1:00AM Oct 19, 2021Observed: 4.64 ft at 1:15AM Oct 19, 2021Observed: 4.63 ft at 1:30AM Oct 19, 2021Observed: 4.63 ft at 1:45AM Oct 19, 2021Observed: 4.63 ft at 2:00AM Oct 19, 2021Observed: 4.62 ft at 2:15AM Oct 19, 2021Observed: 4.62 ft at 2:30AM Oct 19, 2021Observed: 4.62 ft at 2:45AM Oct 19, 2021Observed: 4.62 ft at 3:00AM Oct 19, 2021Observed: 4.62 ft at 3:15AM Oct 19, 2021Observed: 4.62 ft at 3:30AM Oct 19, 2021Observed: 4.61 ft at 3:45AM Oct 19, 2021Observed: 4.61 ft at 4:00AM Oct 19, 2021Observed: 4.61 ft at 4:15AM Oct 19, 2021Observed: 4.6 ft at 4:30AM Oct 19, 2021Observed: 4.6 ft at 4:45AM Oct 19, 2021Observed: 4.6 ft at 5:00AM Oct 19, 2021Observed: 4.59 ft at 5:15AM Oct 19, 2021Observed: 4.59 ft at 5:30AM Oct 19, 2021Observed: 4.59 ft at 5:45AM Oct 19, 2021Observed: 4.58 ft at 6:00AM Oct 19, 2021Observed: 4.58 ft at 6:15AM Oct 19, 2021Observed: 4.58 ft at 6:30AM Oct 19, 2021Observed: 4.58 ft at 6:45AM Oct 19, 2021Observed: 4.58 ft at 7:00AM Oct 19, 2021Observed: 4.57 ft at 7:15AM Oct 19, 2021Observed: 4.57 ft at 7:30AM Oct 19, 2021Observed: 4.57 ft at 7:45AM Oct 19, 2021Observed: 4.56 ft at 8:00AM Oct 19, 2021Observed: 4.56 ft at 8:15AM Oct 19, 2021Observed: 4.56 ft at 8:30AM Oct 19, 2021Observed: 4.56 ft at 8:45AM Oct 19, 2021Observed: 4.55 ft at 9:00AM Oct 19, 2021Observed: 4.55 ft at 9:15AM Oct 19, 2021Observed: 4.55 ft at 9:30AM Oct 19, 2021Observed: 4.55 ft at 9:45AM Oct 19, 2021Observed: 4.55 ft at 10:00AM Oct 19, 2021Observed: 4.55 ft at 10:15AM Oct 19, 2021Observed: 4.54 ft at 10:30AM Oct 19, 2021Observed: 4.54 ft at 10:45AM Oct 19, 2021Observed: 4.54 ft at 11:00AM Oct 19, 2021Observed: 4.54 ft at 11:15AM Oct 19, 2021Observed: 4.53 ft at 11:30AM Oct 19, 2021Observed: 4.53 ft at 11:45AM Oct 19, 2021Observed: 4.53 ft at 12:00PM Oct 19, 2021Observed: 4.53 ft at 12:15PM Oct 19, 2021Observed: 4.52 ft at 12:30PM Oct 19, 2021Observed: 4.52 ft at 12:45PM Oct 19, 2021Observed: 4.52 ft at 1:00PM Oct 19, 2021Observed: 4.52 ft at 1:15PM Oct 19, 2021Observed: 4.52 ft at 1:30PM Oct 19, 2021Observed: 4.52 ft at 1:45PM Oct 19, 2021Observed: 4.52 ft at 2:00PM Oct 19, 2021Observed: 4.52 ft at 2:15PM Oct 19, 2021Observed: 4.51 ft at 2:30PM Oct 19, 2021Observed: 4.51 ft at 2:45PM Oct 19, 2021Observed: 4.51 ft at 3:00PM Oct 19, 2021Observed: 4.51 ft at 3:15PM Oct 19, 2021Observed: 4.51 ft at 3:30PM Oct 19, 2021Observed: 4.51 ft at 3:45PM Oct 19, 2021Observed: 4.51 ft at 4:00PM Oct 19, 2021Observed: 4.51 ft at 4:15PM Oct 19, 2021Observed: 4.51 ft at 4:30PM Oct 19, 2021Observed: 4.51 ft at 4:45PM Oct 19, 2021Observed: 4.51 ft at 5:00PM Oct 19, 2021Observed: 4.51 ft at 5:15PM Oct 19, 2021Observed: 4.52 ft at 5:30PM Oct 19, 2021Observed: 4.52 ft at 5:45PM Oct 19, 2021Observed: 4.51 ft at 6:00PM Oct 19, 2021Observed: 4.52 ft at 6:15PM Oct 19, 2021Observed: 4.52 ft at 6:30PM Oct 19, 2021Observed: 4.52 ft at 6:45PM Oct 19, 2021Observed: 4.52 ft at 7:00PM Oct 19, 2021Observed: 4.52 ft at 7:15PM Oct 19, 2021Observed: 4.52 ft at 7:30PM Oct 19, 2021Observed: 4.53 ft at 7:45PM Oct 19, 2021Observed: 4.53 ft at 8:00PM Oct 19, 2021Observed: 4.52 ft at 8:15PM Oct 19, 2021Observed: 4.52 ft at 8:30PM Oct 19, 2021Observed: 4.52 ft at 8:45PM Oct 19, 2021Observed: 4.53 ft at 9:00PM Oct 19, 2021Observed: 4.53 ft at 9:15PM Oct 19, 2021Observed: 4.53 ft at 9:30PM Oct 19, 2021Observed: 4.53 ft at 9:45PM Oct 19, 2021Observed: 4.53 ft at 10:00PM Oct 19, 2021Observed: 4.53 ft at 10:15PM Oct 19, 2021Observed: 4.53 ft at 10:30PM Oct 19, 2021Observed: 4.53 ft at 10:45PM Oct 19, 2021Observed: 4.53 ft at 11:00PM Oct 19, 2021Observed: 4.53 ft at 11:15PM Oct 19, 2021Observed: 4.53 ft at 11:30PM Oct 19, 2021Observed: 4.53 ft at 11:45PM Oct 19, 2021Observed: 4.53 ft at 12:00AM Oct 20, 2021Observed: 4.53 ft at 12:15AM Oct 20, 2021Observed: 4.53 ft at 12:30AM Oct 20, 2021Observed: 4.53 ft at 12:45AM Oct 20, 2021Observed: 4.53 ft at 1:00AM Oct 20, 2021Observed: 4.53 ft at 1:15AM Oct 20, 2021Observed: 4.53 ft at 1:30AM Oct 20, 2021Observed: 4.53 ft at 1:45AM Oct 20, 2021Observed: 4.53 ft at 2:00AM Oct 20, 2021Observed: 4.53 ft at 2:15AM Oct 20, 2021Observed: 4.52 ft at 2:30AM Oct 20, 2021Observed: 4.52 ft at 2:45AM Oct 20, 2021Observed: 4.53 ft at 3:00AM Oct 20, 2021Observed: 4.52 ft at 3:15AM Oct 20, 2021Observed: 4.52 ft at 3:30AM Oct 20, 2021Observed: 4.53 ft at 3:45AM Oct 20, 2021Observed: 4.54 ft at 4:00AM Oct 20, 2021Observed: 4.54 ft at 4:15AM Oct 20, 2021Observed: 4.54 ft at 4:30AM Oct 20, 2021Observed: 4.55 ft at 4:45AM Oct 20, 2021Observed: 4.55 ft at 5:00AM Oct 20, 2021Observed: 4.55 ft at 5:15AM Oct 20, 2021Observed: 4.55 ft at 5:30AM Oct 20, 2021Observed: 4.55 ft at 5:45AM Oct 20, 2021Observed: 4.55 ft at 6:00AM Oct 20, 2021Observed: 4.55 ft at 6:15AM Oct 20, 2021Observed: 4.55 ft at 6:30AM Oct 20, 2021Observed: 4.55 ft at 6:45AM Oct 20, 2021Observed: 4.55 ft at 7:00AM Oct 20, 2021Observed: 4.55 ft at 7:15AM Oct 20, 2021Observed: 4.55 ft at 7:30AM Oct 20, 2021Observed: 4.55 ft at 7:45AM Oct 20, 2021Observed: 4.55 ft at 8:00AM Oct 20, 2021Observed: 4.55 ft at 8:15AM Oct 20, 2021Observed: 4.55 ft at 8:30AM Oct 20, 2021Observed: 4.55 ft at 8:45AM Oct 20, 2021Observed: 4.54 ft at 9:00AM Oct 20, 2021Observed: 4.54 ft at 9:15AM Oct 20, 2021Observed: 4.54 ft at 9:30AM Oct 20, 2021Observed: 4.54 ft at 9:45AM Oct 20, 2021Observed: 4.54 ft at 10:00AM Oct 20, 2021Observed: 4.54 ft at 10:15AM Oct 20, 2021Observed: 4.54 ft at 10:30AM Oct 20, 2021Observed: 4.54 ft at 10:45AM Oct 20, 2021Observed: 4.53 ft at 11:00AM Oct 20, 2021Observed: 4.53 ft at 11:15AM Oct 20, 2021Observed: 4.53 ft at 11:30AM Oct 20, 2021Observed: 4.53 ft at 11:45AM Oct 20, 2021Observed: 4.53 ft at 12:00PM Oct 20, 2021Observed: 4.53 ft at 12:15PM Oct 20, 2021Observed: 4.53 ft at 12:30PM Oct 20, 2021Observed: 4.53 ft at 12:45PM Oct 20, 2021Observed: 4.53 ft at 1:00PM Oct 20, 2021Observed: 4.53 ft at 1:15PM Oct 20, 2021Observed: 4.54 ft at 1:30PM Oct 20, 2021Observed: 4.53 ft at 1:45PM Oct 20, 2021Observed: 4.54 ft at 2:00PM Oct 20, 2021Observed: 4.54 ft at 2:15PM Oct 20, 2021Observed: 4.55 ft at 2:30PM Oct 20, 2021Observed: 4.56 ft at 2:45PM Oct 20, 2021Observed: 4.56 ft at 3:00PM Oct 20, 2021Observed: 4.57 ft at 3:15PM Oct 20, 2021Observed: 4.57 ft at 3:30PM Oct 20, 2021Observed: 4.58 ft at 3:45PM Oct 20, 2021Observed: 4.58 ft at 4:00PM Oct 20, 2021Observed: 4.58 ft at 4:15PM Oct 20, 2021Observed: 4.59 ft at 4:30PM Oct 20, 2021Observed: 4.59 ft at 4:45PM Oct 20, 2021Observed: 4.59 ft at 5:00PM Oct 20, 2021Observed: 4.59 ft at 5:15PM Oct 20, 2021Observed: 4.59 ft at 5:30PM Oct 20, 2021Observed: 4.59 ft at 5:45PM Oct 20, 2021Observed: 4.59 ft at 6:00PM Oct 20, 2021Observed: 4.59 ft at 6:15PM Oct 20, 2021Observed: 4.59 ft at 6:30PM Oct 20, 2021Observed: 4.59 ft at 6:45PM Oct 20, 2021Observed: 4.59 ft at 7:00PM Oct 20, 2021Observed: 4.59 ft at 7:15PM Oct 20, 2021Observed: 4.59 ft at 7:30PM Oct 20, 2021Observed: 4.59 ft at 7:45PM Oct 20, 2021Observed: 4.59 ft at 8:00PM Oct 20, 2021Observed: 4.59 ft at 8:15PM Oct 20, 2021Observed: 4.58 ft at 8:30PM Oct 20, 2021Observed: 4.59 ft at 8:45PM Oct 20, 2021Observed: 4.58 ft at 9:00PM Oct 20, 2021Observed: 4.58 ft at 9:15PM Oct 20, 2021Observed: 4.58 ft at 9:30PM Oct 20, 2021Observed: 4.58 ft at 9:45PM Oct 20, 2021Observed: 4.58 ft at 10:00PM Oct 20, 2021Observed: 4.58 ft at 10:15PM Oct 20, 2021Observed: 4.58 ft at 10:30PM Oct 20, 2021Observed: 4.58 ft at 10:45PM Oct 20, 2021Observed: 4.57 ft at 11:00PM Oct 20, 2021Observed: 4.58 ft at 11:15PM Oct 20, 2021Observed: 4.57 ft at 11:30PM Oct 20, 2021Observed: 4.57 ft at 11:45PM Oct 20, 2021Observed: 4.57 ft at 12:00AM Oct 21, 2021Observed: 4.57 ft at 12:15AM Oct 21, 2021Observed: 4.57 ft at 12:30AM Oct 21, 2021Observed: 4.57 ft at 12:45AM Oct 21, 2021Observed: 4.56 ft at 1:00AM Oct 21, 2021Observed: 4.56 ft at 1:15AM Oct 21, 2021Observed: 4.56 ft at 1:30AM Oct 21, 2021Observed: 4.56 ft at 1:45AM Oct 21, 2021Observed: 4.56 ft at 2:00AM Oct 21, 2021Observed: 4.56 ft at 2:15AM Oct 21, 2021Observed: 4.56 ft at 2:30AM Oct 21, 2021Observed: 4.56 ft at 2:45AM Oct 21, 2021Observed: 4.55 ft at 3:00AM Oct 21, 2021Observed: 4.55 ft at 3:15AM Oct 21, 2021Observed: 4.55 ft at 3:30AM Oct 21, 2021Observed: 4.55 ft at 3:45AM Oct 21, 2021Observed: 4.55 ft at 4:00AM Oct 21, 2021Observed: 4.55 ft at 4:15AM Oct 21, 2021Observed: 4.55 ft at 4:30AM Oct 21, 2021Observed: 4.54 ft at 4:45AM Oct 21, 2021Observed: 4.54 ft at 5:00AM Oct 21, 2021Observed: 4.54 ft at 5:15AM Oct 21, 2021Observed: 4.54 ft at 5:30AM Oct 21, 2021Observed: 4.54 ft at 5:45AM Oct 21, 2021Observed: 4.53 ft at 6:00AM Oct 21, 2021Observed: 4.53 ft at 6:15AM Oct 21, 2021Observed: 4.53 ft at 6:30AM Oct 21, 2021USGS--Water Resources of the United StatesCTTS2(plotting HGIRG) Graph Created (6:53AM Oct 21, 2021)ObservedLatest observed value: 4.53 ft at 6:30 AM MDT 21-Oct-2021. Flood Stage is 12 ft
Printable Image
About this graph
Tabular Data (UTC)
Tabular Data (MDT)
XML Data
RSS Files
Datum: NGVD29
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) 16.59 ft on 05/22/2019
(2) 10.68 ft on 06/22/2018
(3) 7.32 ft on 02/19/2017
(4) 10.74 ft on 04/17/2016
(5) 14.30 ft on 05/25/2015
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
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: 43.968889° N, Longitude: 101.766667° W, Horizontal Datum: NAD27

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 2242.96 ft 2254.96 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:
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
Ask Questions/Webmaster
Page last modified: 2-Nov-2020 7:28 PM 		Disclaimer
Credits
Glossary 		Privacy Policy
About Us
Career Opportunities