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Hydrograph River at a Glance Download
Fox River near Antioch Stage (ft)AFRI2(plotting HGIRZ) Graph Created (1:10PM Sep 26, 2021)Flood Stage is 739 ft
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Datum: Not Available
NOTE: River forecasts for this location take into account past precipitation and the precipitation amounts expected approximately 24 hours into the future from the forecast issuance time.

NOTE: Forecasts are not available for the Fox River near Antioch. Only observed stages are available for this point.

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Upstream Gauge - near New Munster Upstream Gauge Downstream Gauge Downstream Gauge - at McHenry (Stratton Lock and Dam) tailwater
Flood Categories (in feet)
Major Flood Stage: 740
Moderate Flood Stage: 739.5
Flood Stage: 739
Action Stage: 738.5
Low Stage (in feet): -9999

Historic Crests
Currently none available.

Recent Crests
Currently none available.

Low Water Records
Currently none available.

For more information on your flood risk go to

Zoom Level:15
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Gauge LocationGauge Map Marker
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
741.5 Forest/Lawson/Park intersections closed. Water is halfway up Lawson Rd past N park. Water over Bridge Port boat ramp.
740.9 River is topping Bridge Port Pier. Water on Riverside Drive. Yards on north end of Park Ave under water.
740.5 Widespread flooding of homes adjacent to river. Some families evacuate their homes. Some county roads are closed.
740.35 Riverside drive is closed.
740 Intersection of Forest and Lawson is under water and closed.
739.75 Water has overtopped Riverside Drive. Road is closed.
739.5 Water begins to overflow cul-de-sac on the south end of Forest Lane.
739 Easment of Forest and Lawson is under water.
738.75 Minor lowland flooding begins. No damage reported.
(1) Staff gage on Fox River at Rt 173 bridge.
About This Location Collapse

Latitude: 42.479167° N, Longitude: 88.178889° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame
Gauge Height Flood Stage Uses
NWS stage 0 ft 739 ft Interpreting hydrographs and NWS watch, warnings, and forecasts, and inundation maps
Vertical Datum Elevation
(gauge height = 0)
(gauge height = flood stage)
Elevation information source
NAVD88 Not Available Not Available 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  
Additional Information Collapse
Gage readings read manually from a staff gage and are only available during periods of high water. Flood and impact stages are provisional.
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Hydrologic Resources Additional Resources
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
Chicago Weather Forecast Office
333 W. University Dr.
Romeoville, IL 60446
(815) 834-1435
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Page last modified: 2-Nov-2020 7:29 PM
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