Green River (IL) near Geneseo, IL
River level and flood forecast · Henry County
Normal5.0 ftas of Mon 2:30 PM
The river is 10.0 ft below flood stage (15 ft).
Flow: 1,030 cubic feet per second (USGS).
The last 7 days and the forecast
NWS forecast issued Thu, Oct 1, 10:34 AM. Forecasts change as rain falls and as upstream water arrives.
Flood stages
| Major flood stage | 18 ft |
| Moderate flood stage | 16.5 ft |
| Flood stage | 15 ft |
| Action stage | 14 ft |
| Record crest (January 23, 1969) | 21.59 ft |
What floods at each level
From the National Weather Service, highest first.
- 24 ftWater reaches the bottom of the Grange Road bridge deck.
- 19.3 ftWater reaches the bottom of the Illinois Highway 82 bridge deck in Geneseo.
- 18 ftWater inundates 10th Avenue in south Colona. Water affects levees downstream of Illinois Highway 84.
- 15.5 ftWater affects Illinois Highway 84 north of U.S. Highway 6 in the Colona area.
- 14.5 ftWater affects some roads around south Colona.
Highest crests on record
- 21.59 ft — January 23, 1969
- 19.38 ft — May 30, 2011
- 18.77 ft — October 18, 1998
- 18.48 ft — July 1, 2014
- 18.32 ft — December 27, 2008
Recent crests: 14.96 ft (May 17, 2020) · 17.9 ft (May 30, 2019) · 14.22 ft (February 21, 2018) · 14.82 ft (July 23, 2017) · 16.46 ft (August 30, 2016)
Up and down the river, and nearby
Not an official source. River levels, forecasts, flood stages and impacts are from the National Weather Service (GENI2); flow from the U.S. Geological Survey. Readings are provisional. In a flood, follow your local officials and the NWS at weather.gov.