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.

Weather Forecast Office Milwaukee/Sullivan, WI

North Central River Forecast Center

Hydrograph

River at a Glance

Download

Auto Refresh: OFF

Printable Image About this graph Tabular Data (UTC) Tabular Data (CDT) Datum: NAVD88 Metadata

NOTE: Forecasts are not available for the South Branch Rock River at Waupun. Only observed stages are available for this point.

Default Hydrograph Scale to Flood Categories   Return to Area Map

Downstream Gauge

Flood Categories (in feet) Major Flood Stage: 10 Moderate Flood Stage: 8 Flood Stage: 6 Action Stage: 4 Low Stage (in feet): -9999 Historic Crests (1) 10.09 ft on 06/13/2008 (2) 8.66 ft on 03/15/2019 (3) 8.27 ft on 06/09/2008 (4) 8.20 ft on 06/11/2004 (5) 7.97 ft on 04/03/1959 Show More Historic Crests (P): Preliminary values subject to further review. Recent Crests (1) 6.28 ft on 08/08/2021 (2) 7.92 ft on 10/02/2019 (3) 7.92 ft on 10/02/2019 (4) 8.66 ft on 03/15/2019 (5) 7.43 ft on 08/29/2018 (P) Show More Recent Crests (P): Preliminary values subject to further review. Low Water Records (1) 1.57 ft on 03/17/1987 (2) 1.73 ft on 09/07/2003 (3) 1.75 ft on 09/15/2005 (4) 1.78 ft on 08/25/2012 (5) 1.79 ft on 09/11/2013 Show More Low Water Records For more information on your flood risk go to www.floodsmart.gov. Show FEMA's National Flood Hazard Layers FEMA's National Flood Hazard Layers not showing? Why aren't the FEMA National Flood Hazard Layers showing on the ESRI Map? Possible reasons: There are no FEMA National Flood Hazard Layers for the location which you are viewing on ESRI Maps. The FEMA Web Mapping Service (WMS) is down. Note: Your zoom level may have changed. ESRI's zoom levels must be between 14 and 16 to show National Flood Hazard layers.

Zoom Level:16 Legend FEMA Layer Gauge Location 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

If you notice any errors in the below information, please contact our Webmaster
11	Water covers the support beams underneath the Fond du Lac St bridge and is closed. Gateway Dr. and County Park Rd. at the bridge are closed. Waters hits bridge deck of County Park Rd. Yards and basements, including walk-out basements, of some homes on Harmsen Ave. are flooded. This level is the 0.2 percent chance flood meaning that there is a 0.2 percent chance in any given year of the river reaching this level. Shaler Park and Pine St park closed.
10.4	Water covers the support beams underneath the Fond du Lac St bridge and is closed. Gateway Dr. and County Park Rd. at the bridge are closed. Yards and basements, including walk-out basements, of some homes on Harmsen Ave. are flooded. This level is the 0.5 percent chance flood meaning that there is a 0.5 percent chance in any given year of the river reaching this level. Floodwaters affect roadways adjacent to the river, a park and a picnic area.
9.8	Water covers the support beams underneath the Fond du Lac St bridge and is closed. Gateway Dr. and County Park Rd. at the bridge are closed. Yards and basements, including walk-out basements of some homes on Harmsen Ave. are flooded. This level is the 1 percent chance flood meaning that there is a 1 percent chance in any given year of the river reaching this level. Floodwaters affect a park, a picnic area and roadways adjacent to the river.
9.3	Water covers the support beams underneath the Fond du Lac St bridge and is closed. Gateway Dr. and County Park Rd. at the bridge are closed. Yards and basements of some homes on Harmsen Ave. are flooded. This level is the 2 percent chance flood meaning that there is a 2 percent chance in any given year of the river reaching this level.
8.6	Water touches the support beams underneath the Fond du Lac St bridge and is closed. Gateway Dr. and County Park Rd. at the bridge are closed. This level is the 4 percent chance flood meaning that there is a 4 percent chance in any given year of the river reaching this level.
7.57	Water reaches the support beams underneath the Fond du Lac St bridge and is closed. Gateway Dr. and County Park Rd. at the bridge are closed. Floodwaters affect a park and roadways adjacent to the river. This level is the 10 percent chance flood meaning that there is a 10 percent chance in any given year of the river reaching this level. Water starts to over top the dam at Shaler Park.
7.3	Water reaches the support beams underneath the Fond du Lac St bridge and is closed. Gateway Dr. and County Park Rd. at the bridge are closed. Floodwaters affect a park, a picnic area and roadways in the Waupun area.
7	Floodwaters affect a park, a picnic area, and some roadways adjacent to the river. Gateway Dr. is flooded. County Park Rd (Hwy MMM) is closed at the bridge as the river flows around the north end of bridge. This level is the 20 percent chance flood meaning that there is a 20 percent chance in any given year of the river reaching this level. Shaler Park and Pine St Park closed.
6.8	Floodwaters affect a picnic area and park near the river. Gateway Dr. is flooded and closed.
6	Floodwaters affect a picnic area and park near the river. Gateway Dr. is flooded and closed.
4.8	Gateway Dr. is flooded and closed.
4.6	Water begins to affect a low spot on Gateway Dr.
4	There is minor lowland flooding
Photos (1) Aerial photo 1 of S. Br. Rock River-Waupun, WI (2) Aerial photo 2 of S. Br. Rock River-Waupun, WI

About This Location

Latitude: 43.641389° N, Longitude: 88.720281° W, Horizontal Datum: NAD83/WGS84 River Stage Reference Frame Gauge Height Flood Stage Uses NWS stage 0 ft 6 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 863.33 ft 869.33 ft Survey grade GPS equipment, FEMA flood plain maps, newer USGS topographic maps NGVD 29 863.46 ft 869.46 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: U.S. Geological Survey (USGS) Data and Site Info for Waupun

Additional Information

Recent Camera Image from Gauge

Resources

Hydrologic Resources Text Products Past Precipitation Forecast Precipitation River Forecast Centers River Stage Summary Inundation Mapping Locations

Additional Resources Area Hydrographs NWS Precipitation and River Forecasting AHPS Iframes for Developers Mobile iNWS for emergency management Long Term Palmer Drought Severity Index Snow Information USGS WI Water Science High Water Mark Signs Levee Safety Information June 2008 National Flood Assessment How to Estimate River Ice Thickness Flood Resiliency at Wastewater Plants Manure Management Advisory System Historic Flooding Events For Southern Wisconsin Ice Jam Potential-4 sites in SE Wis.

Collaborative Agencies 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 Milwaukee/Sullivan Weather Forecast Office N3533 Hardscrabble Road Dousman, WI 53118 (262) 965-2074 Ask Questions/Webmaster Page last modified: 2-Nov-2020 7:29 PM Disclaimer Credits Glossary Privacy Policy About Us Career Opportunities