Major Flood
22 ft
Current Water Level
Gage Height
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Streamflow
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Last Reading
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FLOOD STAGES
Know the flood categories.
Flood stages defined by the National Weather Service. Gage height data from USGS Water Resources.
Moderate Flood
18 ft
Minor Flood
12 ft
Action Stage
11.5 ft
What Floods at Each Level
30 ft
Beltline Road and Kishwaukee Road threatened south of Rockford. A runway and taxiway may be inundated at Chicago Rockford International Airport.
28 ft
Industrial structures threatened along Beltline Road south of Rockford.
27 ft
Commercial structures threatened along IL-251 (11th Street) near Rockford and New Milford.
25.5 ft
Blackhawk Road threatened south of Rockford.
25 ft
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 ft
IL-251 (11th Street) threatened near Rockford and New Milford.
23.5 ft
Rydberg Road threatened near Rockford and New Milford.
23 ft
Residential structures threatened along Rydberg Road near Rockford and New Milford.
22 ft
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 ft
Residences threatened along Schell Drive near Rockford and New Milford. Falcon Road threatened at Chicago Rockford International Airport.
21 ft
Mulford Road threatened south of Rockford.
19 ft
Campsites threatened at Blackhawk Valley Campground south of Rockford.
17 ft
Will James Road threatened near Rockford and New Milford.
16 ft
Low-lying sections of Atwood Park inundated south of Rockford.
15 ft
Old Perryville Road threatened south of Rockford. Widespread inundation of agricultural land and forest land near Chicago Rockford International Airport.
13 ft
Roadways threatened at Blackhawk Valley Campground south of Rockford.
12 ft
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 ft
Flooding begins of low lying agricultural lands near the river.
Impact statements from the National Weather Service, describing what typically happens at each water level.
Low-Water Impacts
5.0
Approximate stage of the 1-in-10 annual chance flow (7-day average).
4.5
River nears zero flow.
What happens as water levels drop, per the National Weather Service.
7-Day Water Level Chart
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Historic Crests
| Date | Stage | Flow |
|---|---|---|
| Jul 18, 1996 | 23.54 ft | 24,200 cfs |
| Feb 20, 1994 | 20.71 ft | 17,100 cfs |
| Mar 20, 1979 | 20.48 ft | 16,700 cfs |
About This Gauge
USGS Site
NWS LID
PRYI2
River
Kishwaukee River
County
Winnebago, IL
Coordinates
42.1944°N, 88.9989°W
Get Flood Alerts for Kishwaukee River
StormCast monitors this gauge and sends a push notification to your phone when the water level crosses into a new flood category — even at 3 AM.
Frequently Asked Questions
What is the current water level of Kishwaukee River near Perryville?
The Kishwaukee River near Perryville gauge is maintained by USGS (site 05440000) and reports water levels every 15 minutes. Visit this page to see the latest reading updated live, or download StormCast to get push alerts when levels rise.
What is flood stage for Kishwaukee River near Perryville?
The NWS-defined flood stage for Kishwaukee River near Perryville is 12 feet. Action stage begins at 11.5 feet. Moderate flooding starts at 18 feet, and major flooding at 22 feet.
How do I get alerts when Kishwaukee River rises?
Download StormCast free on Google Play, go to River Gauges, and add Kishwaukee River near Perryville to your watchlist. StormCast will send a push notification to your phone whenever the water level crosses into a new NWS flood category.
Where is the Kishwaukee River near Perryville gauge located?
The gauge is located in Winnebago County, Illinois at coordinates 42.1944°N, 88.9989°W. USGS site number: 05440000. Data is provided by the U.S. Geological Survey and the National Weather Service.
More Gauges on Kishwaukee River
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Source & Notes
Data provided by: US Geological Survey, Observations courtesy of U.S. Geological Survey, Observations courtesy of U.S. Army Corps of Engineers
- River forecasts for this location take into account past and future precipitation. The stages/flows that will occur may be different if future rainfall is different than forecast.