Flag Creek near Willow Springs, IL
River level and flood forecast · Cook County
Normal3.3 ftas of Mon 3:15 PM
The river is 6.7 ft below flood stage (10 ft).
Flow: 17 cubic feet per second (USGS).
The last 7 days and the forecast
NWS forecast issued Sun, Dec 31, 6 PM. Forecasts change as rain falls and as upstream water arrives.
Flood stages
| Major flood stage | 13 ft |
| Moderate flood stage | 12 ft |
| Flood stage | 10 ft |
| Action stage | 9 ft |
| Record crest (April 18, 2013) | 10.57 ft |
What floods at each level
From the National Weather Service, highest first.
- 18 ftGerman Church Road is threatened in Willow Springs.
- 15 ftWidespread inundation of the floodplain in Burr Ridge and Willow Springs affects numerous residences, structures, and roadways.
- 14.5 ftStructures are threatened at Score Sports Center in Willow Springs. Residences are threatened along Hess Lane at Wolf Road in Willow Springs.
- 14 ftPleasantview Fire Station 2 is threatened in Burr Ridge. 79th Street is threatened near the creek in Burr Ridge.
- 13.5 ftResidences threatened along Wolf Road near 79th Street in Burr Ridge. Wolf Road is threatened north of German Church Road in Willow Springs.
- 12.5 ftWolf Road is threatened near 79th Street in Burr Ridge. Hess Lane is threatened near Wolf Road in Willow Springs.
- 12 ftA few structures are threatened near Wolf Road and German Church Road in Willow Springs. 91st Street is threatened west of the creek in Willow Springs.
- 11 ftVale Court threatened near the creek in Willow Springs.
- 10.5 ftScore Sports Center parking lot is threatened in Willow Springs.
- 10 ftOrchard Road is threatened at 91st Street in Willow Springs. Athletic fields are threatened at Walker Park in Burr Ridge.
Highest crests on record
- 10.57 ft — April 18, 2013
- 10.37 ft — July 18, 1996
- 10.36 ft — July 24, 2010
- 10.22 ft — June 13, 1976
- 10.06 ft — August 22, 2014
Recent crests: 8.15 ft (May 1, 2019) · 7.36 ft (March 1, 2017) · 8.44 ft (June 15, 2015) · 10.06 ft (August 22, 2014) · 10.57 ft (April 18, 2013)
Up and down the river, and nearby
- DownstreamDes Plaines River near Lemont, IL
- Sawmill Creek (IL) near Lemont, IL
- Chicago Sanitary and Ship Canal at Lemont, IL
- Stony Creek at Worth, IL
- Summit Conduit at Summit, IL
- Salt Creek (IL) at Western Springs, IL
- Des Plaines River at Lyons, IL
- Des Plaines River at Riverside, IL
- Salt Creek (IL) at Oak Brook, IL
Not an official source. River levels, forecasts, flood stages and impacts are from the National Weather Service (WLSI2); flow from the U.S. Geological Survey. Readings are provisional. In a flood, follow your local officials and the NWS at weather.gov.