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

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 Kishwaukee River near Perryville are issued as needed during times of high water, but are not routinely available.

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Upstream Gauge

Downstream Gauge

Flood Categories (in feet) Major Flood Stage: 22 Moderate Flood Stage: 18 Flood Stage: 12 Action Stage: 11.5 Low Stage (in feet): 5 Historic Crests (1) 23.54 ft on 07/18/1996 (2) 20.71 ft on 02/21/1994 (3) 20.48 ft on 03/21/1979 (4) 19.76 ft on 02/22/1997 (5) 19.65 ft on 04/22/1973 Show More Historic Crests (P): Preliminary values subject to further review. Recent Crests (1) 15.99 ft on 05/18/2020 (2) 12.10 ft on 03/30/2020 (3) 14.69 ft on 09/14/2019 (4) 12.47 ft on 05/03/2019 (5) 15.69 ft on 03/14/2019 Show More Recent Crests (P): Preliminary values subject to further review. Low Water Records (1) 4.85 ft on 09/15/2005 (2) 4.92 ft on 09/11/2003 (3) 4.97 ft on 09/02/1991 (4) 5.05 ft on 09/02/2012 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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30	Beltline Road and Kishwaukee Road threatened south of Rockford. A runway and taxiway may be inundated at Chicago Rockford International Airport.
28	Industrial structures threatened along Beltline Road south of Rockford.
27	Commercial structures threatened along IL-251 (11th Street) near Rockford and New Milford.
25.5	Blackhawk Road threatened south of Rockford.
25	Widespread inundation of the floodplain reaches numerous structures along Will James Road, Schell Drive, Milton Road, Vesta Drive, Ralph Road, and Rydberg Road near Rockford and New Milford.
24.5	IL-251 (11th Street) threatened near Rockford and New Milford.
23.5	Rydberg Road threatened near Rockford and New Milford.
23	Residential structures threatened along Rydberg Road near Rockford and New Milford.
22	Residential structures threatened along Will James Road near Rockford and New Milford. Structures threatened at Rockford Christian Camp. Water nears a runway at Chicago Rockford International Airport.
21.5	Residences threatened along Schell Drive near Rockford and New Milford. Falcon Road threatened at Chicago Rockford International Airport.
21	Mulford Road threatened south of Rockford.
19	Campsites threatened at Blackhawk Valley Campground south of Rockford.
17	Will James Road threatened near Rockford and New Milford.
16	Low-lying sections of Atwood Park inundated south of Rockford.
15	Old Perryville Road threatened south of Rockford. Widespread inundation of agricultural land and forest land near Chicago Rockford International Airport.
13	Roadways threatened at Blackhawk Valley Campground south of Rockford.
12	Water overtops low-lying banks in Blackhawk Springs Forest Preserve and in south Rockford near Chicago Rockford International Airport. Trails threatened at Blackhawk Springs Forest Preserve.
10	Flooding begins of low lying agricultural lands near the river.

Low Water Impacts

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

About This Location

Latitude: 42.194444° N, Longitude: 88.998889° W, Horizontal Datum: NAD83/WGS84 River Stage Reference Frame Gauge Height Flood Stage Uses NWS stage 0 ft 12 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 691.96 703.96 Survey grade GPS equipment, FEMA flood plain maps, newer USGS topographic maps NGVD 29 692.13 704.13 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: Corps of Engineers (COE) Info for Perryville U.S. Geological Survey (USGS) Data and Site Info for Perryville

Additional Information

How much forecast precipitation was used for the current river forecast? USGS Streamflow Duration Hydrograph How low could the river get?

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