Major Flood
18 ft
Current Water Level
Gage Height
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Streamflow
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Last Reading
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This is an NWS forecast point (LID: ILNI2). Live data may be limited. View on NWS AHPS →
FLOOD STAGES
Know the flood categories.
Flood stages defined by the National Weather Service. Gage height data from USGS Water Resources.
Moderate Flood
16 ft
Minor Flood
15 ft
Action Stage
14 ft
What Floods at Each Level
29 ft
Water reaches the top of the Milan levee.
24.5 ft
Water reaches the top of the Andalusia levee.
22.5 ft
Water affects the entire state park at Fairport and is at the foundations of facilities there.
21.5 ft
Water affects the Post Office and several commercial buildings in Buffalo.
20.5 ft
Water affects Front Street and several homes in Buffalo. Water also affects the fish hatchery at Fairport.
20 ft
Water affects Buffalos Front Street at Franklin and on Iowa Highway 22 west of town. Water affects Illinois Highway 92 west of Andalusia.
19.5 ft
Water affects Buffalos Franklin Street and into some yards from seepage. At Buffalo Shores, water is at the foundations of several homes.
19 ft
Water affects the Clarks Ferry Recreational Area at Montpelier.
18.5 ft
Water floods Andalusias Second Street in the unprotected area. Water is also at the foundations of several homes in Midway Beach.
18 ft
Water affects the state park campground at Fairport.
17 ft
Water affects the Buffalo Shores Access Area. Lock and Dam 16 is closed.
16.98 ft
Lock and Dam 16 is closed.
16 ft
Water affects the park at Andalusia.
13 ft
Water affects residents on Smiths Island.
Impact statements from the National Weather Service, describing what typically happens at each water level.
7-Day Water Level Chart
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Historic Crests
| Date | Stage | Flow |
|---|---|---|
| Jul 8, 1993 | 24.1 ft | — |
| Apr 27, 1965 | 23.27 ft | — |
| May 2, 2019 | 23.23 ft | — |
About This Gauge
NWS LID
ILNI2
River
Mississippi River
County
Rock Island, IL
Coordinates
41.4256°N, 91.0128°W
Get Flood Alerts for Mississippi 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 Mississippi River at Illinois City?
The Mississippi River at Illinois City gauge is maintained by USGS 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 Mississippi River at Illinois City?
The NWS-defined flood stage for Mississippi River at Illinois City is 15 feet. Action stage begins at 14 feet. Moderate flooding starts at 16 feet, and major flooding at 18 feet.
How do I get alerts when Mississippi River rises?
Download StormCast free on Google Play, go to River Gauges, and add Mississippi River at Illinois City 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 Mississippi River at Illinois City gauge located?
The gauge is located in Rock Island County, Illinois at coordinates 41.4256°N, 91.0128°W. Data is provided by the U.S. Geological Survey and the National Weather Service.
More Gauges on Mississippi River
On This River
More Resources
Source & Notes
Data provided by: U.S. Army Corps of Engineers, Observations courtesy of U.S. Army Corps of Engineers
- River forecasts for this location take into account past precipitation and the precipitation amounts expected approximately 48 hours into the future from the forecast issuance time.