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: 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 Chicago, IL

North Central River Forecast Center

Hydrograph

River at a Glance

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Probability Information Weekly Chance of Exceeding Levels Chance of Exceeding Levels During Entire Period Short-term Probabilistic Guidance (Experimental)

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

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 for the Little Calumet River at South Holland are issued as needed during times of high water, but are not routinely available.

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Upstream Gauge

Flood Categories (in feet) Major Flood Stage: 20 Moderate Flood Stage: 18 Flood Stage: 16.5 Action Stage: 15 Low Stage (in feet): 5 Historic Crests (1) 20.50 ft on 11/28/1990 (2) 20.20 ft on 06/14/1981 (3) 20.16 ft on 09/14/2008 (4) 20.11 ft on 07/14/1957 (5) 20.01 ft on 07/19/1996 Show More Historic Crests (P): Preliminary values subject to further review. Recent Crests (1) 15.50 ft on 05/18/2020 (2) 15.83 ft on 09/29/2019 (3) 16.49 ft on 05/02/2019 (4) 19.23 ft on 02/21/2018 (5) 18.59 ft on 04/18/2013 Show More Recent Crests (P): Preliminary values subject to further review. Low Water Records (1) 4.84 ft on 10/23/1999 (2) 4.89 ft on 10/06/1994 (3) 4.89 ft on 09/09/2017 (4) 4.94 ft on 07/03/2016 (5) 4.95 ft on 09/16/1995 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:15 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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24	Widespread inundation of roadways and structures in the floodplain reaches up to four blocks from the river in South Holland.
22.5	State Street threatened in South Holland. Sibley Boulevard (IL-83) threatened in Dolton and Harvey.
22	Multiple commercial structures threatened along River Oaks Drive (US-6) in Calumet City. Cottage Grove Avenue threatened in South Holland.
21.5	Residential structures threatened off Park Avenue in Calumet City. Multiple commercial structures threatened along Van Dam Road in South Holland.
21	Widespread inundation of roadways and structures in the floodplain reaches up to two blocks from the river between Gouwens Park and Veterans Park, and numerous blocks near Pioneer Park. River Oaks Drive (US-6) threatened in Calumet City. Wabash Avenue threatened in South Holland. Residential parking lots threatened off Park Avenue in Calumet City. Athletic fields threatened at Veterans Park in South Holland.
20.5	I-94 (Bishop Ford Freeway) threatened near US-6 in South Holland. Eisenhower Elementary threatened in South Holland. Commercial structures threatened along Greenwood Avenue in Dolton. A few residential structures threatened along Markham Drive in Harvey. A few residential structures threatened along Kenwood Avenue, Kimbark Avenue, 165th Street, and side streets in South Holland. Commercial parking lots threatened along River Oaks Drive (US-6) in Calumet City.
20	A few commercial structures threatened along Van Dam Road in South Holland. A few residential structures threatened along Robin Lane, Riverview Drive, 159th Place, and Blouin Drive in South Holland.
19.5	Residential structures threatened along South Park Avenue and 158th Street in South Holland. South Park Avenue and 158th Street threatened.
19	Riverview Drive, 159th Place, 158th Street, Blouin Drive, Kenwood Avenue, Kimbark Avenue, and numerous side streets threatened in South Holland. Parking lots threatened along South Park Avenue in South Holland.
18.5	A few structures threatened along Riverside Drive in South Holland.
18	Riverview Drive threatened in South Holland.
17	Markham Drive threatened in Harvey. Low-lying portions of Pioneer Park inundated in South Holland.
16	Greenwood Avenue threatened in Dolton.
15.5	Trails threatened at Veterans Park in South Holland. Athletic fields threatened at Gouwens Park in South Holland.
12	South Holland Trail threatened at Gouwens Park in South Holland. Low-lying portions of River Oaks Golf Course are inundated.
9	Water overtops low-lying banks in South Holland, Harvey, and Dolton.

Low Water Impacts

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4.5	River nears zero flow.
5	Approximate stage of the 1-in-10 annual chance flow (7-day average).

About This Location

Latitude: 41.606944° N, Longitude: 87.597778° W, Horizontal Datum: NAD27 River Stage Reference Frame Gauge Height Flood Stage Uses NWS stage 0 ft 16.5 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 574.68 591.18 Survey grade GPS equipment, FEMA flood plain maps, newer USGS topographic maps NGVD 29 575.0 591.5 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 South Holland

Additional Information

How much forecast precipitation was used for the current river forecast? USGS Streamflow Duration Hydrograph How low could the river get? Inundation Mapping from US Geological Survey

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