Green River (KY) at Calhoun Lock and Dam, KY
River level and flood forecast · McLean County
The river is 13.2 ft below flood stage (23 ft).
Forecast to rise to 10.0 ft Wed 1 AM, below the 23 ft flood stage.
Flow: 727 cubic feet per second (USGS).
The last 7 days and the forecast
NWS forecast issued Mon, Oct 12, 9:45 AM. Forecasts change as rain falls and as upstream water arrives.
Flood stages
| Major flood stage | 32 ft |
| Moderate flood stage | 26 ft |
| Flood stage | 23 ft |
| Action stage | 18 ft |
| Record crest (January 27, 1937) | 43.75 ft |
What floods at each level
From the National Weather Service, highest first.
- 42.4 ftThis flood will exceed the highest stage on record. 60 percent of McLean county is inundated.
- 34 ftState Road 81 south of Rumsey is flooded and closed.
- 33 ftThe entire town of Rumsey is flooded.
- 32 ftMost of Rumsey is flooded. State Road 81 floods in Rumsey near the Methodist church. Widespread flooding of agricultural land south of Rumsey, even as far south as Cypress Creek.
- 30 ftLower Calhoun begins flooding. A large portion of Rumsey is flooded and evacuation of homes becomes necessary.
- 28 ftRiverview Drive in Calhoun floods.
- 26 ftModerate flooding occurs with thousands of acreage flooded in the Island, Rumsey, and Jewel City areas.
- 23 ftMinor flooding occurs affecting mainly agricultural bottomland and low lying areas.
Highest crests on record
- 43.75 ft — January 27, 1937
- 36.8 ft — January 1, 1913
- 36.3 ft — January 16, 1950
- 35.89 ft — April 13, 2025
- 34.37 ft — March 11, 1997
Recent crests: 35.89 ft (April 13, 2025) · 32.35 ft (February 23, 2025) · 24.38 ft (May 30, 2024) · 25.4 ft (February 28, 2022) · 24.59 ft (January 13, 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 (CALK2); flow from the U.S. Geological Survey. Readings are provisional. In a flood, follow your local officials and the NWS at weather.gov.