Pecatonica River near Shirland, IL
River level and flood forecast · Winnebago County
Normal6.2 ftas of Mon 4 PM
The river is 5.8 ft below flood stage (12 ft).
Flow: 1,980 cubic feet per second (USGS).
The last 7 days and the forecast
NWS forecast issued Thu, Oct 1, 10:18 AM. Forecasts change as rain falls and as upstream water arrives.
Flood stages
| Major flood stage | 15.5 ft |
| Moderate flood stage | 14 ft |
| Flood stage | 12 ft |
| Action stage | 11 ft |
| Record crest (March 25, 1975) | 18.08 ft |
What floods at each level
From the National Weather Service, highest first.
- 19.5 ftShirland Community School and other municipal buildings are threatened in Shirland.
- 19 ftIL-70 (Trask Bridge Road) is threatened east of the river between Pecatonica and Harrison.
- 18.5 ftStructures threatened near the river in Pecatonica.
- 17.5 ftResidences are threatened along Harrison Road in Harrison. Meridian Road is threatened south of the river east of Shirland.
- 17 ftTelegraph Road is threatened east of Pecatonica. IL-75 is threatened west of Harrison. Harrison Road is threatened in Harrison.
- 16.5 ftResidences are threatened along Hartlien Road in Shirland.
- 16 ftWater treatment plant property in Pecatonica is threatened.
- 15 ftHarrison Road (Mitchell Street) threatened between Shirland and Harrison. Widespread inundation of the floodplain reaches up to half mile from the river near Shirland.
- 14.5 ftPecatonica Road and Blair Road are threatened north of Pecatonica.
- 14 ftStructures threatened at Rivers Edge Campground east of Shirland.
- 12 ftLow-lying sections of the Winnebago County Fairgrounds are inundated. Low-lying sections of Rivers Edge Campground are inundated east of Shirland.
Highest crests on record
- 18.08 ft — March 25, 1975
- 17.45 ft — April 4, 1959
- 17.08 ft — April 3, 1960
- 16.73 ft — March 21, 1948
- 16.5 ft — February 19, 1971
Recent crests: 12.82 ft (July 19, 2024) · 11.2 ft (June 26, 2024) · 13.05 ft (April 8, 2024) · 11.81 ft (March 5, 2023) · 13.68 ft (August 14, 2022)
Up and down the river, and nearby
Not an official source. River levels, forecasts, flood stages and impacts are from the National Weather Service (SIRI2); flow from the U.S. Geological Survey. Readings are provisional. In a flood, follow your local officials and the NWS at weather.gov.