Green River (KY) near Mammoth Cave
Highest listed crest 59.66 ftFlood stage 32.0 ft6 crests since 2018
The Green River (KY) near Mammoth Cave crested above flood stage 6 times among the 6 crests the National Weather Service lists from 2018 to 2025. The highest, 59.66 ft on April 6, 2025, was moderate flooding, 27.66 feet above flood stage. 5 other gauges on the Green River (KY) crested above flood stage within a week of it.
The gauge
- Highest listed crest
- 59.66 ft
- April 6, 2025; 56,400 cubic feet per second
- Flood stage
- 32.0 ft
- Major flooding from 62.0 ft
- Crests at major
- 0
- 6 above flood stage
- Most recent flood crest
- April 6, 2025
- 59.66 ft, moderate flooding
Flood stages
The thresholds the National Weather Service uses for this gauge today, and how many listed crests reached each.
| Action stage | 20.0 | 0 | — |
| Flood stage (minor) | 32.0 | 5 | Feb 18, 2025 |
| Moderate flood stage | 57.0 | 1 | Apr 6, 2025 |
| Major flood stage | 62.0 | 0 | — |
Every listed crest
6 crests from 2018 to 2025. Filled: at or above flood stage. Hover a crest for its date and stage.
Crests at or above flood stage, by decade
- These are the crests the local National Weather Service office lists for the gauge: the highest on record and recent crests. Lesser floods between them may be missing, so counts by decade are a floor.
- Categories use today's flood stages. Levees, dams and channel changes since a crest can make old and new stages not directly comparable.
- 8 crests measured on an earlier gauge datum are left out: 50.50 ft on Jan 1, 1913; 42.60 ft on Jan 1, 1935; 52.00 ft on Jan 24, 1937; 31.70 ft on Feb 6, 1939; 34.60 ft on Jan 4, 1945; 38.10 ft on Apr 16, 1948; and more.
Highest crests
| 1 | Apr 6, 2025 | 59.66 | +27.66 | Moderate |
| 2 | Feb 18, 2025 | 52.46 | +20.46 | Minor |
| 3 | Mar 3, 2021 | 50.94 | +18.94 | Minor |
| 4 | Feb 26, 2019 | 42.62 | +10.62 | Minor |
| 5 | Dec 19, 2019 | 38.04 | +6.04 | Minor |
| 6 | Feb 12, 2018 | 34.60 | +2.60 | Minor |
The worst floods along the Green River (KY)
For this gauge's highest crests, the other gauges on the Green River (KY) that crested above flood stage within a week.
April 6, 2025: 59.66 ft here, moderate flooding
- ParadiseKY · Apr 9, 2025 · 403.31 ft · Major
- RochesterKY · Apr 9, 2025 · 53.11 ft · Major
- WoodburyKY · Apr 7, 2025 · 45.19 ft · Major
- Calhoun Lock and DamKY · Apr 13, 2025 · 35.89 ft · Major
- MunfordvilleKY · Apr 6, 2025 · 47.26 ft · Minor
February 18, 2025: 52.46 ft here, minor flooding
- WoodburyKY · Feb 18, 2025 · 41.97 ft · Major
- Calhoun Lock and DamKY · Feb 23, 2025 · 32.35 ft · Major
- ParadiseKY · Feb 21, 2025 · 397.43 ft · Moderate
- RochesterKY · Feb 21, 2025 · 48.09 ft · Moderate
- MunfordvilleKY · Feb 17, 2025 · 43.99 ft · Minor
March 3, 2021: 50.94 ft here, minor flooding
- ParadiseKY · Mar 7, 2021 · 393.73 ft · Moderate
- RochesterKY · Mar 6, 2021 · 45.30 ft · Moderate
- WoodburyKY · Mar 3, 2021 · 39.90 ft · Moderate
- Calhoun Lock and DamKY · Mar 9, 2021 · 29.69 ft · Moderate
- MunfordvilleKY · Mar 2, 2021 · 42.79 ft · Minor
Gauges on the Green River (KY)
In USGS station-number order, which runs downstream within a river basin.
| Munfordville | KY | 57.72 ft, Mar 1, 1962 | 1 |
| Mammoth Cave this gauge | KY | 59.66 ft, Apr 6, 2025 | 0 |
| Woodbury | KY | 52.67 ft, Jan 24, 1937 | 14 |
| Rochester | KY | 61.60 ft, Jan 27, 1937 | 5 |
| Paradise | KY | 403.65 ft, Mar 5, 1962 | 3 |
| Calhoun Lock and Dam | KY | 43.75 ft, Jan 27, 1937 | 22 |
Edmonson County: every hazard · River floods across the country · Kentucky
NOAA National Water Prediction Service, gauge MMCK2, retrieved October 30, 2026. Stages in feet on the gauge's own datum, not elevation. Crests are as the National Weather Service lists them; preliminary values may be revised.