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This probabilistic forecast is issued by the North Central River Forecast Center.
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About this graph
Forecasts for the Iroquois River at Rensselaer are issued as needed during times of high water, but are not routinely available.
Return to Area Map

Downstream Gauge Downstream Gauge - near Foresman
Zoom Level:15
Flood Categories (in feet)
Major Flood Stage: 15
Moderate Flood Stage: 14
Flood Stage: 12
Action Stage: 11
Low Stage (in feet): -9999

Historic Crests
(1) 17.04 ft on 02/22/2018
(2) 16.59 ft on 07/10/2003
(3) 16.54 ft on 06/10/1958
(4) 16.16 ft on 03/12/2009
(5) 15.79 ft on 12/31/1990
Show More Historic Crests

(P): Preliminary values subject to further review.

Recent Crests
(1) 12.51 ft on 05/02/2019
(2) 17.04 ft on 02/22/2018
(3) 13.78 ft on 12/30/2015 (P)
(4) 11.17 ft on 06/18/2015
(5) 13.94 ft on 06/02/2013
Show More Recent Crests

(P): Preliminary values subject to further review.

Low Water Records
Currently none available.
KML Image
Gauge LocationGauge Map Marker
 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 Collapse
If you notice any errors in the below information, please contact our Webmaster
22 I-65 is threatened west of Rensselaer.
18.5 Widespread inundation of structures and roads begins in east Rensselaer. Grace Street is threatened in Rensselaer.
18 US-231/Washington Street is threatened in Rensselaer.
17.5 Water treatment plant in Rensselaer threatened. IL-114 is inundated east of the river east of Rensselaer.
17 Extensive flooding of Potawatomi Park and Laird's Landing in Rensselaer.
16.5 Structures threatened along Kanne Lane in west Rensselaer.
16 Extensive flooding of cemetery and nearby public works.
15 College Avenue threatened in Rensselaer.
14 Water surrounds several homes in Rensselaer.
12 Flooding of agricultural lands begin. Flooding begins to backyards and cemetery along the river. Flooding of Lairds Landing.
Photos
(1) Looking downstream 10/14/2010. Gage height 3.50 ft.
(2) Looking upstream 10/14/2010. Gage height 3.50 ft.

Other Real-time and/or Archive Data Sources:
Additional Information Collapse
How much forecast precipitation was used for the current river forecast?
How low could the river get?
Inundation Mapping from US Geological Survey
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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