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This probabilistic forecast is issued by the North Central River Forecast Center.
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About this graph
Forecasts for the Cedar River at Janesville are issued as needed during times of high water, but are not routinely available.

More information on datums is available at www.ngs.noaa.gov/faq.shtml

Return to Area Map

Downstream Gauge Downstream Gauge - at Cedar Falls
Zoom Level:15
Flood Categories (in feet)
Major Flood Stage: 18
Moderate Flood Stage: 15
Flood Stage: 13
Action Stage: 10
Low Stage (in feet): -9999

Historic Crests
(1) 19.45 ft on 06/10/2008
(2) 17.15 ft on 07/22/1999
(3) 16.33 ft on 03/03/1965
(4) 16.33 ft on 03/28/1961
(5) 16.27 ft on 09/24/2016
(6) 16.20 ft on 03/17/1945
(7) 16.00 ft on 04/01/1933
(8) 16.00 ft on 03/16/1929
(9) 15.74 ft on 08/18/1993
(10) 15.11 ft on 08/30/2021
Show More Historic Crests

(P): Preliminary values subject to further review.

Recent Crests
(1) 8.57 ft on 05/17/2023
(2) 6.11 ft on 04/15/2022
(3) 15.11 ft on 08/30/2021
(4) 8.89 ft on 03/11/2020
(5) 12.40 ft on 03/18/2019
(6) 12.14 ft on 09/23/2018
(7) 9.24 ft on 10/29/2016
(8) 16.27 ft on 09/24/2016
(9) 9.89 ft on 06/25/2015
(10) 12.42 ft on 06/21/2014
Show More Recent Crests

(P): Preliminary values subject to further review.

Low Water Records
Currently none available.
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
14 Areas of Janesville south of 8th Street are threatened.
13 Evacuation of a trailer court in Janesville may be needed...due to flooding on West 3rd Street. Much of the Janesville city park floods. Nearby gravel roads are affected.
12 Widespread lowland flooding occurs especially within the city park. The flooding covers approximately 6000 acres.
11 Lowland flooding of the city park occurs.

Other Real-time and/or Archive Data Sources:
Additional Information Collapse
  • USGS 7-Day Streamflow Duration Hydrograph for this location:
    Duration Hydrograph

    Duration Hydrograph Legend


  • USGS Cumulative Streamflow Hydrograph for this location:
    Duration Hydrograph of Cumulative Streamflow
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
Des Moines Weather Forecast Office
9607 NW Beaver Dr.
Des Moines, IA 50131
(515) 270-2614
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