National Weather Service Advanced Hydrologic Prediction Service

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This probabilistic forecast is issued by the North Central River Forecast Center.

	Hydrograph			River at a Glance			Download			Probability Information Weekly Chance of Exceeding Levels Chance of Exceeding Levels During Entire Period Short-term Probabilistic Guidance (Experimental)

About this graph

Forecasts for the Illinois River at Morris are issued routinely year-round.

Return to Area Map

Downstream Gauge

Zoom Level:15

Flood Categories (in feet)

Major Flood Stage:	22
Moderate Flood Stage:	18
Flood Stage:	16
Action Stage:	13
Low Stage (in feet):	2.7

Historic Crests
(1) 24.91 ft on 04/19/2013
(2) 24.84 ft on 09/16/2008
(3) 24.80 ft on 05/19/2020
(4) 23.91 ft on 07/14/1957
(5) 23.90 ft on 02/21/1916
Show More Historic Crests

(P): Preliminary values subject to further review.

Recent Crests
(1) 24.80 ft on 05/19/2020
(2) 15.71 ft on 01/12/2020
(3) 18.43 ft on 09/29/2019
(4) 23.03 ft on 05/02/2019
(5) 14.79 ft on 06/23/2018
Show More Recent Crests

(P): Preliminary values subject to further review.

Low Water Records
(1) 0.27 ft on 07/20/1893
(2) 2.70 ft on 11/02/1904
(3) 4.43 ft on 09/13/2017
(4) 4.59 ft on 04/24/2021
(5) 4.80 ft on 08/01/1988

	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

If you notice any errors in the below information, please contact our Webmaster
27	High water levels cause Dresden Lock to shut down.
22	Multiple residences threatened between Morris and Marseilles. Numerous roadways threatened along the river between Morris and Marseilles.
21	Morris Public Works property is threatened. West River Road is threatened.
20	Low-lying residences threatened in Morris.
19.5	Old Stage Road threatened near the Illinois and Michigan Canal between Morris and Seneca.
18.5	A few residences threatened along Cemetery Road in Morris.
18	A few roads threatened near Morris. Low-lying portions of Illini Park inundated near Marseilles.
16	Pine Bluff Road threatened west of IL-47 south of Morris. Dwight Road threatened south of Morris. High water levels begin to impact shipping interests along the river.
12.5	Low-lying portions of Stratton Park inundated near IL-47 in Morris.
Photos (1) 01/19/2013, 5.8ft. Near IL-47 bridge and Stratton Park. (2) 12/29/2015, 19.2ft. Stratton Park. Credit: Grundy Co EMA (3) 12/29/2015, 19.2ft. Pine Bluff Road. Credit: Grundy Co EMA

Low Water Impacts

If you notice any errors in the below information, please contact our Webmaster

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

Other Real-time and/or Archive Data Sources:

Additional Information

How much forecast precipitation was used for the current river forecast?
How low could the river get?

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
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Page last modified: 2-Nov-2020 7:29 PM

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