Ohio River at Montgomery Lock and Dam
Critical Stages
23.3' - Action
33' - Flood
36' - Moderate
38' - Major
Latest Observation
Updated: 10:45 AM EST 12/6/25
Status: No Flooding
Stage: 13.36 ft
Flow: -999 kcfs
Forecast
| Time | Stage (ft) | Flow (kcfs) |
|---|---|---|
| 1 PM 12/6 | 13.4 | -999 |
| 7 PM 12/6 | 13.3 | -999 |
| 1 AM 12/7 | 13.3 | -999 |
| 7 AM 12/7 | 13.2 | -999 |
| 1 PM 12/7 | 13.2 | -999 |
| 7 PM 12/7 | 13.1 | -999 |
| 1 AM 12/8 | 13.1 | -999 |
| 7 AM 12/8 | 13.1 | -999 |
| 1 PM 12/8 | 13.1 | -999 |
| 7 PM 12/8 | 13 | -999 |
| 1 AM 12/9 | 13 | -999 |
| 7 AM 12/9 | 13 | -999 |
| 1 PM 12/9 | 13 | -999 |
| 7 PM 12/9 | 12.9 | -999 |
| 1 AM 12/10 | 12.9 | -999 |
| 7 AM 12/10 | 12.8 | -999 |
| 1 PM 12/10 | 12.8 | -999 |
| 7 PM 12/10 | 12.8 | -999 |
| 1 AM 12/11 | 12.8 | -999 |
| 7 AM 12/11 | 12.8 | -999 |
| Time | Stage (ft) | Flow (kcfs) |
|---|---|---|
| 10:45 AM 12/6 | 13.36 | -999 |
| 10:30 AM 12/6 | 13.31 | -999 |
| 10:15 AM 12/6 | 13.33 | -999 |
| 10:00 AM 12/6 | 13.35 | -999 |
| 9:45 AM 12/6 | 13.37 | -999 |
| 9:30 AM 12/6 | 13.38 | -999 |
| 9:15 AM 12/6 | 13.39 | -999 |
| 9:00 AM 12/6 | 13.38 | -999 |
| 8:45 AM 12/6 | 13.35 | -999 |
| 8:30 AM 12/6 | 13.37 | -999 |
| 8:15 AM 12/6 | 13.38 | -999 |
| 8:00 AM 12/6 | 13.42 | -999 |
| 7:45 AM 12/6 | 13.45 | -999 |
| 7:30 AM 12/6 | 13.48 | -999 |
| 7:15 AM 12/6 | 13.52 | -999 |
| 7:00 AM 12/6 | 13.58 | -999 |
| 6:45 AM 12/6 | 13.6 | -999 |
| 6:30 AM 12/6 | 13.63 | -999 |
| 6:15 AM 12/6 | 13.54 | -999 |
| 6:00 AM 12/6 | 13.47 | -999 |
| 5:45 AM 12/6 | 13.4 | -999 |
| 5:30 AM 12/6 | 13.52 | -999 |
| 5:15 AM 12/6 | 13.53 | -999 |
| 5:00 AM 12/6 | 13.5 | -999 |
| 4:45 AM 12/6 | 13.48 | -999 |
| 4:30 AM 12/6 | 13.57 | -999 |
| 4:15 AM 12/6 | 13.47 | -999 |
| 4:00 AM 12/6 | 13.5 | -999 |
| 3:45 AM 12/6 | 13.49 | -999 |
| 3:30 AM 12/6 | 13.43 | -999 |
55' -
This was the st. Patricks day flood of 1936. This crest occurred before flood control projects were in place at numerous locations upstream.
40.5' -
Lock walls overtopped.
37' -
Navigation suspended, lock out of service.
| Date | Stage (ft) |
|---|---|
| Mar 18, 1936 | 55 |
| Dec 31, 1942 | 47.9 |
| Jun 24, 1972 | 43.1 |
| Oct 17, 1954 | 43 |
| Jan 19, 1996 | 43 |
| Mar 11, 1966 | 42 |
| Mar 11, 1964 | 42 |
| Jan 23, 1959 | 41.3 |
| Sep 19, 2004 | 41 |
| Jan 28, 1952 | 40.5 |
| Dec 5, 1950 | 37.7 |
| Sep 11, 2018 | 37.49 |
| Jan 7, 2005 | 36.9 |
| Apr 1, 1960 | 36.2 |
| Apr 4, 2024 | 36 |
| Apr 4, 2024 | 35.97 |
| Feb 14, 1966 | 35.6 |
| Mar 6, 1963 | 34.3 |
| Mar 31, 1964 | 34.3 |
| Sep 11, 2018 | 33.85 |
Data provided by the National Weather Service.
