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Experimental National Water Center Products: Flood Inundation Mapping services are now available for 10% of the U.S. population. Please visit https://www.weather.gov/owp/operations for more information. The National Hydrologic Discussion, Area Hydrologic Discussion, Flood Hazard Outlook, and real-time geospatial services depicting River Forecast Center and National Water Model forecasts, continue to be accessible via the URL above, 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 (CST) Datum: NAVD88 Metadata

NOTE: No forecasts are available for this location NOTE: Gauge awaiting repair - automated readings are not available at this time. NOTE: Forecasts are not available for the Black Earth Creek at Mazomanie. Only observed stages are available for this point.

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Upstream Gauge

Flood Categories (in feet) Major Flood Stage: 15 Moderate Flood Stage: 13 Flood Stage: 10 Action Stage: 8 Low Stage (in feet): -9999 Historic Crests (1) 16.60 ft on 08/21/2018 (2) 11.91 ft on 06/09/2008 (3) 11.66 ft on 03/15/2019 (4) 10.95 ft on 10/02/2019 (P) (5) 10.55 ft on 07/12/2008 (6) 10.37 ft on 06/16/2016 (7) 9.62 ft on 08/20/2007 (8) 9.28 ft on 07/21/2017 (9) 8.87 ft on 02/14/2005 (10) 8.83 ft on 02/07/2005 Show More Historic Crests (P): Preliminary values subject to further review. Recent Crests (1) 10.95 ft on 10/02/2019 (P) (2) 11.66 ft on 03/15/2019 (3) 16.60 ft on 08/21/2018 (4) 9.28 ft on 07/21/2017 (5) 7.70 ft on 10/27/2016 (6) 7.06 ft on 07/22/2016 (7) 10.37 ft on 06/16/2016 (8) 5.92 ft on 12/14/2015 (9) 7.21 ft on 06/15/2015 (10) 7.27 ft on 04/10/2015 Show More Recent Crests (P): Preliminary values subject to further review. Low Water Records (1) 3.11 ft on 08/27/2015 (2) 3.18 ft on 08/17/2013 (3) 3.42 ft on 07/25/2023 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
16	There is 1-3 feet of water across downtown and NE side of town near Black Earth Creek. Water into first floor and basements of these homes. Water over road on Bridge St at bridge and County Road Y, on the northeast side of Mazomanie. This level is the 1 percent chance flood meaning there is a 1 percent chance in any given year of the river reaching this level.
15	Water is over Bridge St. at bridge on north side of town. There is 1 to 2 feet of water downtown and northeast side of town along Black Earth Creek.
11.9	Floodwaters affect Curtiss Street and other streets, including County Road Y, on the northeast side of Mazomanie.
11	Floodwaters affect Curtiss Street and other streets on the northeast side of Mazomanie.
10	Floodwaters affect Curtiss Street on the northeast side of Mazomanie. There is general lowland flooding in the Mazomanie area.
9	Between stages 8 feet to 10 feet, there is general overflow of the lowest banks resulting in minor lowland flooding.
8	There is general overflow of the lowest banks resulting in minor lowland flooding.

About This Location

Latitude: 43.176500° N, Longitude: 89.818500° W, Horizontal Datum: NAD83/WGS84 River Stage Reference Frame Gauge Height Flood Stage Uses NWS stage 0 ft 10 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 743.77 ft 753.77 ft 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

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