National Weather Service Advanced Hydrologic Prediction Service

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Weather Forecast Office Chicago, IL

North Central River Forecast Center

Hydrograph

River at a Glance

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About this graph

Tabular Data (UTC)

Tabular Data (CDT)

Datum: Not Available

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 Rock River at Rockton 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:	14
Moderate Flood Stage:	11
Flood Stage:	10
Action Stage:	8.5
Low Stage (in feet):	-9999

Historic Crests
(1) 15.54 ft on 03/25/1975
(2) 15.13 ft on 03/17/2019
(3) 14.80 ft on 03/22/1904
(4) 14.72 ft on 06/17/2008
(5) 14.08 ft on 04/04/1959
Show More Historic Crests

(P): Preliminary values subject to further review.

Recent Crests
(1) 9.23 ft on 05/24/2020
(2) 10.02 ft on 03/29/2020
(3) 13.00 ft on 10/07/2019
(4) 10.03 ft on 09/13/2019
(5) 9.72 ft on 06/02/2019
Show More Recent Crests

(P): Preliminary values subject to further review.

Low Water Records
Currently none available.

For more information on your flood risk go to www.floodsmart.gov.

Show FEMA's National Flood Hazard Layers

Zoom Level:15

	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
17.5	Structures threatened along Hawick Street in downtown Rockton.
17	Rockton Road is threatened west of Rockton.
15	Hawick Street threatened near Settlers Park in Rockton.
14	Low-lying structures threatned off Main Street in Rockton. Roscoe Road threatened west of Roscoe. Praire Hill Road inundated north of Rockton.
13.5	Old River Road west of Roscoe Bridge is inundated.
12	Low-lying roads along the river in Roscoe are inundated.
10.5	Edgemere Terrace is inundated near Roscoe.
10	Low-lying structures are threatened along Edgemere Terrace near Roscoe.
9	Low-lying areas of Settlers Park in Rockton are inundated.
8	Water overflows low-lying banks along Edgemere Terrace near Roscoe.
7	Low-lying areas of Riverside Park near Roscoe are inundated.
Photos (1) Looking upstream from right bank. Stage 2.80 ft. (2) Looking downstream from right bank. Stage 2.80 ft.

About This Location

Latitude: 42.450278° N, Longitude: 89.072500° W, Horizontal Datum: NAD83/WGS84

River Stage Reference Frame	Gauge Height	Flood Stage	Uses
NWS stage	0 ft	10 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	Not Available	Not Available	Survey grade GPS equipment, FEMA flood plain maps, newer USGS topographic maps
NGVD 29	707.94 ft	717.94 ft	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:

Additional Information

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

Resources

Hydrologic Resources

Additional Resources

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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