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 Chicago, IL

Arkansas Red-Basin 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: Graphical forecasts are not available for the Cal-Sag Channel at Blue Island. During times of high water, forecast crest information can be found in the text products.

Default Hydrograph Scale to Flood Categories   Return to Area Map

Flood Categories (in feet) Major Flood Stage: 38 Moderate Flood Stage: 35 Flood Stage: 30.5 Action Stage: 30 Low Stage (in feet): 23.6 Historic Crests (P): Preliminary values subject to further review. Recent Crests (P): Preliminary values subject to further review. Low Water Records Currently none available.

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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41	Multiple residences are threatened along Canal Street in Blue Island. Parking lots threatened along Cal-Sag Road in Crestwood.
40.5	Canal Street is threatened in Blue Island.
40	Water overtops banks in Crestwood.
39	Residences threatened along Fulton Street in Blue Island. Widespread inundation of Waters Edge Golf Club in Worth.
38.5	Structures and roadways are threatened at Sycamore Mobile Home Park in Blue Island.
38	Division Street is threatened in Blue Island. Low-lying portions of Waters Edge Golf Club are inundated in Worth. Backwater casues Stony Creek to threaten a few residential structures in Worth. Backwater causes Stony Creek to threaten 111th Street in Worth.
37.5	Fulton Street is threatened in Blue Island.
36.5	Parking lots are threatened along Fulton Street in Blue Island.
36	Industrial property is threatened in Alsip.
35	Water overtops low-lying banks in Alsip.
33	Water overtops low-lying banks in Blue Island, Chicago, and McMahon Woods. Backwater causes Stony Creek to overtop low-lying banks in Worth.
30.5	USACE and MWRD consider opening of O'Brien Lock to reduce flood impacts, depending on the water level of Lake Michigan.

Low Water Impacts

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23.6	Low water levels begin to impact shipping interests along the river.

About This Location

Latitude: 41.652800° N, Longitude: 87.670300° W, Horizontal Datum: NAD83/WGS84 River Stage Reference Frame Gauge Height Flood Stage Uses NWS stage 0 ft 30.5 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 551.76 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   Current/Historical Observations: U.S. Geological Survey (USGS) Data and Site Info for Blue Island

Resources

Hydrologic Resources Text Products Past Precipitation Forecast Precipitation River Forecast Centers River Stage Summary USGS WaterAlert Gauge Notifications Drought Information Snow Cover Information Flood Safety NWS Chicago Hydrology Program Hydrology of North Illinois and Northwest Indiana

Additional Resources Area Hydrographs NWS Precipitation and River Forecasting AHPS Iframes for Developers Mobile iNWS for emergency management

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 Chicago Weather Forecast Office 333 W. University Dr. Romeoville, IL 60446 (815) 834-1435 Ask Questions/Webmaster Page last modified: 2-Nov-2020 7:29 PM Disclaimer Credits Glossary Privacy Policy About Us Career Opportunities