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

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

NOTE: We are looking for a volunteer to report rainfall and/or snowfall near this location. If interested, please contact the local NWS office or go to http://www.cocorahs.org/ NOTE: Forecasts are not available for the Rock River at Newville. Only observed stages are available for this point.

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Upstream Gauge

Downstream Gauge

Flood Categories (in feet) Major Flood Stage: 8 Moderate Flood Stage: 7.5 Flood Stage: 6.5 Action Stage: 5.5 Low Stage (in feet): -9999 Historic Crests (1) 8.51 ft on 04/23/2013 (2) 7.99 ft on 04/17/2013 (3) 7.79 ft on 09/12/2018 (4) 7.60 ft on 03/25/2019 (5) 7.26 ft on 10/15/2018 Show More Historic Crests (P): Preliminary values subject to further review. Recent Crests (1) 7.14 ft on 10/15/2019 (2) 7.14 ft on 10/14/2019 (3) 7.10 ft on 10/12/2019 (4) 7.60 ft on 03/25/2019 (5) 7.25 ft on 10/20/2018 Show More Recent Crests (P): Preliminary values subject to further review. Low Water Records (1) 2.14 ft on 06/27/2012 (2) 2.24 ft on 09/10/2013 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

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8.1	Floodwaters surround some homes near East Mallwood Dr and across eastern Newville. Floodwaters affect a riverside restaurant and its parking lot on the south side of the river. Boat slips at two Newville marinas are under water and water surrounds fuel tanks at one marina. Dallman Park is flooded at Charley Bluff on the SE side of Lake Koshkonong. About 4 miles downstream, floodwaters flow over and cover Indianford Dam. Downstream in Janesville, Traxler park off of Memorial Drive is flooded and closed.
7.5	Floodwaters surround some homes near East Mallwood Drive and are into yards and roads across eastern Newville. Floodwaters affect a riverside restaurant and its parking lot on the south side of the river.
6.5	Floodwaters are in the back yards of homes and businesses near east Mallwood Road Drive in Newville.
5.5	Water is into some of the lowest back yards in the Newville area.
4.5	There is minor lowland flooding in the Newville area.
Photos (1) Flooding at Indianford Dam

About This Location

Latitude: 42.829444° N, Longitude: 89.020556° W, Horizontal Datum: NAD83/WGS84 River Stage Reference Frame Gauge Height Flood Stage Uses NWS stage 0 ft 6.5 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 773.5 ft 779.5 ft Survey grade GPS equipment, FEMA flood plain maps, newer USGS topographic maps NGVD 29 773.26 ft 779.26 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 Newville

Additional Information

River forecasts are not available for this location.

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