Major Flood
32 ft
Current Water Level
Gage Height
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Streamflow
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Last Reading
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FLOOD STAGES
Know the flood categories.
Flood stages defined by the National Weather Service. Gage height data from USGS Water Resources.
Moderate Flood
26 ft
Minor Flood
23 ft
Action Stage
18 ft
What Floods at Each Level
42.4 ft
This flood will exceed the highest stage on record. 60 percent of McLean county is inundated.
34 ft
State Road 81 south of Rumsey is flooded and closed.
33 ft
The entire town of Rumsey is flooded.
32 ft
Most 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 ft
Lower Calhoun begins flooding. A large portion of Rumsey is flooded and evacuation of homes becomes necessary.
28 ft
Riverview Drive in Calhoun floods.
26 ft
Moderate flooding occurs with thousands of acreage flooded in the Island, Rumsey, and Jewel City areas.
23 ft
Minor flooding occurs affecting mainly agricultural bottomland and low lying areas.
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 |
|---|---|---|
| Jan 26, 1937 | 43.75 ft | 208,000 cfs |
| Dec 31, 1912 | 36.8 ft | — |
| Jan 15, 1950 | 36.3 ft | 86,300 cfs |
About This Gauge
USGS Site
NWS LID
CALK2
River
Green River (KY)
County
McLean, KY
Coordinates
37.5339°N, 87.2639°W
Get Flood Alerts for Green River (KY)
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 Green River (KY) at Calhoun Lock and Dam?
The Green River (KY) at Calhoun Lock and Dam gauge is maintained by USGS (site 03320000) 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 Green River (KY) at Calhoun Lock and Dam?
The NWS-defined flood stage for Green River (KY) at Calhoun Lock and Dam is 23 feet. Action stage begins at 18 feet. Moderate flooding starts at 26 feet, and major flooding at 32 feet.
How do I get alerts when Green River (KY) rises?
Download StormCast free on Google Play, go to River Gauges, and add Green River (KY) at Calhoun Lock and Dam 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 Green River (KY) at Calhoun Lock and Dam gauge located?
The gauge is located in McLean County, Kentucky at coordinates 37.5339°N, 87.2639°W. USGS site number: 03320000. Data is provided by the U.S. Geological Survey and the National Weather Service.
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Source & Notes
Data provided by: US Geological Survey, Observations courtesy of U.S. Geological Survey
- 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.