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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 Rock River at Dixon are issued as needed during times of high water, but are not routinely available.
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Upstream Gauge - at Byron Upstream Gauge Downstream Gauge Downstream Gauge - at Como
Zoom Level:16
Flood Categories (in feet)
Major Flood Stage: 20
Moderate Flood Stage: 18
Flood Stage: 16
Action Stage: 13
Low Stage (in feet): 7

Historic Crests
(1) 20.50 ft on 04/20/1973
(2) 19.00 ft on 07/02/1996 (P)
(3) 18.50 ft on 03/25/1975 (P)
(4) 18.40 ft on 03/21/1979
(5) 18.40 ft on 04/05/1959
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(P): Preliminary values subject to further review.

Recent Crests
(1) 14.79 ft on 05/19/2020
(2) 15.06 ft on 03/30/2020
(3) 16.32 ft on 01/20/2020
(4) 15.68 ft on 10/05/2019
(5) 15.16 ft on 09/15/2019
Show More Recent Crests

(P): Preliminary values subject to further review.

Low Water Records
(1) 7.35 ft on 07/10/2012
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Gauge LocationGauge Map Marker
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
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23 Numerous residences threatened along Willet Avenue and Lincoln Avenue. Hennepin Avenue threatened at Boyd Street. Dixon High School threatened.
22 River Road (IL-2) inundated east of Dixon. Water reaches the bottom of the Peoria Avenue bridge in Dixon.
21 Structures threatened near 1st Street in Dixon. Residences threatened along Willet Road west of Dixon.
20 Athletic fields inundated at Dixon High School. Parking lot threatened at KSB Hospital in Dixon.
19 River Street threatened in Dixon.
17.5 Flooding affects basement of Dixon High School.
16.5 Numerous sections of Page Drive inundated along the river. Lower road inundated near boat docks in Lowell Park. Flooding of unimproved land on Riverside Drive in White Oaks. Colony Road is threatened north of Dixon.
16 N Canal Drive threatened in Woodland Shores. Water overflows low-lying banks along west First Street in Dixon. Residential property threatened near Sherman Avenue and River Street in Dixon.
15.5 Page Park picnic area is inundated. Backwater causes Sevenmile Branch to overflow low-lying banks near Forest Park Drive north of Dixon.
15 Page Drive threatened in Page Park.
13.5 Water overflows low-lying banks along Rock Nation Road northeast of Grand Detour.
13 Water overtops low-lying banks along N Canal Drive and S Canal Drive west of Dixon. Camping Islands campground in Grand Detour threatened. Lower bike path along river in Dixon is threatened.
(1) Rock River at Dixon, IL looking cross channel towards right bank.
(2) Looking downstream 8/26/2010. Gage height 10.63 ft.
Low Water Impacts Collapse
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7.0 Approximate stage of the 1-in-10 annual chance flow (7-day average).

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?
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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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