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Weather Forecast Office Green Bay, 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: Stage may be affected by ice. NOTE: Forecasts are not available for the Manitowoc River at Manitowoc. Only observed stages are available for this point.

Default Hydrograph Scale to Flood Categories   Return to Area Map

Flood Categories (in feet) Major Flood Stage: 13 Moderate Flood Stage: 11.5 Flood Stage: 10 Action Stage: 8 Low Stage (in feet): -9999 Historic Crests (1) 13.60 ft on 03/15/2019 (2) 13.30 ft on 03/25/1986 (3) 13.24 ft on 03/31/1979 (4) 12.38 ft on 03/13/2007 (5) 12.04 ft on 06/13/2008 Show More Historic Crests (P): Preliminary values subject to further review. Recent Crests (1) 9.42 ft on 04/01/2023 (2) 10.10 ft on 03/05/2022 (3) 9.47 ft on 04/09/2021 (4) 10.12 ft on 03/20/2020 (5) 13.60 ft on 03/15/2019 Show More Recent Crests (P): Preliminary values subject to further review. Low Water Records (1) 3.62 ft on 07/08/1988 (2) 3.67 ft on 10/05/1989 (3) 3.81 ft on 09/15/1976 (4) 3.81 ft on 07/25/1995 (5) 3.83 ft on 09/12/1977 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:14 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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14	Flooding affects spread into locations near the river from Archer Street to Ellis Street. Several feet of floodwater covers Broadway Steet and Mills Street.
12	Up to 2 feet of water may be covering portions of Clay Pit Road and Broadway Street Park Road in the city of Manitowoc. Parts of Mill Road and North Rapids Road is covered by up to a foot of water.
11	Up to a foot of water is covering portions of Clay Pit Road and Broadway Street Park Road. Widespread lowland flooding is occurring.
10	There is widespread flooding of lowland and agricultural land. After ice out...the river current is strong from Manitowoc upstream to Clark Mills.
10	There is widespread flooding of lowland and agricultural land.
9	1 foot below flood stage. The river current, after ice out, is likely very fast from just west of Manitowoc upstream to Clark Mills.
9	Flooding is confined to low-lying areas.
8	Which is bankfull stage...there is minor lowland flooding. Flood stage is 10 feet.
Photos (1) Near Mill street at 7.6 feet (2) Near Mill stree at 10.2 feet

About This Location

Latitude: 44.106167° N, Longitude: 87.716028° 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 590.10 ft 600.10 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   Current/Historical Observations: U.S. Geological Survey (USGS) Data and Site Info for Manitowoc

Resources

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

Additional Resources Area Hydrographs NWS Precipitation and River Forecasting AHPS Iframes for Developers Mobile iNWS for emergency management Palmer Index US Drought Monitor U.S. Geological Survey Wisconsin Manure Management Advisory System

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