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Green River (KY) near Mammoth Cave — water level right now

Edmonson County, Kentucky · NWS gauge MMCK2
Loading the latest reading…
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current stage (ft)
 
32
minor flood stage
 
59.66
record crest
set 2025-04-06
–
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 · 20
minor · 32
moderate · 57
major · 62
Flood stageLevel (ft)What it means
Major flood stage62extensive inundation and significant evacuations — a serious event
Moderate flood stage57some buildings and roads inundated; evacuations possible
Minor flood stage32low-lying roads and fields near the river start to flood
Action stage20water is approaching flood level — time to pay attention

Highest floods on record here

#Crest (ft)Datevs. minor flood stage
159.662025-04-06+27.66 above
252.462025-02-18+20.46 above
3521937-01-24+20 above
450.942021-03-03+18.94 above
550.51913-01-01+18.5 above
6431949-02-18+11 above
742.622019-02-26+10.62 above
842.61935-01-01+10.6 above
9421950-01-09+10 above
1038.11948-04-16+6.1 above
1138.042019-12-19+6.04 above
1234.62018-02-12+2.6 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

Nolin River at Nolin River Lake 10 mi away · loading… Green River (KY) at Munfordville 14 mi away · loading… Barren River at Barren River Lake 20 mi away · loading… Barren River at Bowling Green 21 mi away · loading… Drakes Creek near Alvaton 25 mi away · loading… Green River (KY) above Woodbury 28 mi away · loading…

Gauge details

NWS gauge IDMMCK2
USGS site03309000
CountyEdmonson
StateKentucky
NWS forecast officeLouisville
River forecast centerOhio River Forecast Center
Coordinates37.18, -86.112
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) near Mammoth Cave

Is Green River (KY) near Mammoth Cave 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 32 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) near Mammoth Cave?

major flood stage 62 ft, moderate flood stage 57 ft, minor flood stage 32 ft, action stage 20 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) near Mammoth Cave?

The highest crest on file at this gauge is 59.66 ft, reached on 2025-04-06 — that is 27.66 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 Louisville and local emergency management.