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Green River (KY) at Calhoun Lock and Dam — water level right now

McLean County, Kentucky · NWS gauge CALK2
Loading the latest reading…
–
current stage (ft)
 
23
minor flood stage
 
43.75
record crest
set 1937-01-27
–
flood status
official NWS category
Official NOAA forecast → USGS data → Full US flood map →

Flood stages at this gauge

Where the water stands right now against the four official thresholds:

action · 18
minor · 23
moderate · 26
major · 32
Flood stageLevel (ft)What it means
Major flood stage32extensive inundation and significant evacuations — a serious event
Moderate flood stage26some buildings and roads inundated; evacuations possible
Minor flood stage23low-lying roads and fields near the river start to flood
Action stage18water is approaching flood level — time to pay attention

Highest floods on record here

#Crest (ft)Datevs. minor flood stage
143.751937-01-27+20.75 above
236.81913-01-01+13.8 above
336.31950-01-16+13.3 above
435.892025-04-13+12.89 above
534.371997-03-11+11.37 above
634.012011-05-07+11.01 above
733.971962-03-10+10.97 above
833.961964-03-17+10.96 above
933.61945-03-08+10.6 above
1033.371989-02-24+10.37 above
1132.91939-02-11+9.9 above
1232.91935-04-07+9.9 above

Historic crests recorded at this gauge by the National Weather Service — the 12 highest on file.

Where this gauge is

The marker is this gauge; nearby gauges load live and are clickable.

Nearby river gauges

Ohio River at Owensboro 19 mi away · loading… Green River (KY) at Paradise 24 mi away · loading… Ohio River at Henderson 28 mi away · loading… Green River (KY) at Rochester 30 mi away · loading… Rough River near Dundee 30 mi away · loading… Green River (KY) above Woodbury 42 mi away · loading…

Gauge details

NWS gauge IDCALK2
USGS site03320000
CountyMcLean
StateKentucky
NWS forecast officeWest Paducah
River forecast centerOhio River Forecast Center
Coordinates37.534, -87.264
Time zoneCST6CDT
Turn Around, Don't Drown. Six inches of moving water can knock you off your feet and twelve inches can float a car. Never drive around barricades or into water of unknown depth — most flood deaths happen in vehicles.

Questions about Green River (KY) at Calhoun Lock and Dam

Is Green River (KY) at Calhoun Lock and Dam flooding right now?

The live reading at the top of this page answers that: the gauge is compared against its official NWS flood stages every 15 minutes. Minor flooding at this gauge begins at 23 ft. Blue means normal, yellow is action stage, orange minor, red moderate and dark red major flooding.

What is flood stage for Green River (KY) at Calhoun Lock and Dam?

major flood stage 32 ft, moderate flood stage 26 ft, minor flood stage 23 ft, action stage 18 ft. These are official National Weather Service thresholds set specifically for this gauge, not generic values.

What is the record flood at Green River (KY) at Calhoun Lock and Dam?

The highest crest on file at this gauge is 43.75 ft, reached on 1937-01-27 — that is 20.75 ft above minor flood stage. The full list of the highest crests is in the table on this page.

Where does this data come from?

From the NOAA National Water Prediction Service, the official U.S. river gauge network — a U.S. government work in the public domain. Live stage is refreshed every 15 minutes; flood thresholds and historic crests are refreshed monthly. For life-safety decisions follow NWS West Paducah and local emergency management.