Ontonagon River near Rockland
Critical Stages
23' - Action
25' - Flood
26' - Moderate
28' - Major
Latest Observation
Updated: 7:15 PM EST 12/8/25
Status: No Flooding
Stage: 6.22 ft
Flow: 1.02 kcfs
Forecast
Forecast not available for this location.
| Time | Stage (ft) | Flow (kcfs) |
|---|---|---|
| 7:15 PM 12/8 | 6.22 | 1.02 |
| 7:00 PM 12/8 | 6.22 | 1.02 |
| 6:45 PM 12/8 | 6.22 | 1.02 |
| 6:30 PM 12/8 | 6.22 | 1.02 |
| 6:15 PM 12/8 | 6.22 | 1.02 |
| 6:00 PM 12/8 | 6.23 | 1.03 |
| 5:45 PM 12/8 | 6.23 | 1.03 |
| 5:30 PM 12/8 | 6.24 | 1.03 |
| 5:15 PM 12/8 | 6.25 | 1.04 |
| 5:00 PM 12/8 | 6.26 | 1.05 |
| 4:45 PM 12/8 | 6.27 | 1.05 |
| 4:30 PM 12/8 | 6.27 | 1.05 |
| 4:15 PM 12/8 | 6.27 | 1.05 |
| 4:00 PM 12/8 | 6.27 | 1.05 |
| 3:45 PM 12/8 | 6.28 | 1.06 |
| 3:30 PM 12/8 | 6.29 | 1.06 |
| 3:15 PM 12/8 | 6.3 | 1.07 |
| 3:00 PM 12/8 | 6.3 | 1.07 |
| 2:45 PM 12/8 | 6.31 | 1.08 |
| 2:30 PM 12/8 | 6.3 | 1.07 |
| 2:15 PM 12/8 | 6.29 | 1.06 |
| 2:00 PM 12/8 | 6.29 | 1.06 |
| 1:45 PM 12/8 | 6.29 | 1.06 |
| 1:30 PM 12/8 | 6.29 | 1.06 |
| 1:15 PM 12/8 | 6.29 | 1.06 |
| 1:00 PM 12/8 | 6.29 | 1.06 |
| 12:45 PM 12/8 | 6.28 | 1.06 |
| 12:30 PM 12/8 | 6.28 | 1.06 |
| 12:15 PM 12/8 | 6.28 | 1.06 |
| 12:00 PM 12/8 | 6.27 | 1.05 |
25' -
Flooding may be occurring downstream in Ontonagon...especially during above normal lake levels or ice coverage near the mouth of the river.
| Date | Stage (ft) |
|---|---|
| Aug 22, 1942 | 28.6 |
| May 1, 2013 | 21.96 |
| Apr 13, 2023 | 21.64 |
| Apr 23, 2019 | 21.13 |
| May 12, 2003 | 20.9 |
| Apr 24, 1960 | 20.82 |
| Apr 17, 2002 | 20.34 |
| Apr 1, 1986 | 20.12 |
| Feb 21, 2017 | 19.82 |
| Jul 3, 1992 | 19.8 |
| Mar 27, 1961 | 19.48 |
| Aug 4, 1953 | 19.38 |
| Apr 1, 1963 | 18.81 |
| Apr 19, 1952 | 18.78 |
| Apr 19, 2004 | 18.57 |
| Jul 6, 1949 | 18.52 |
| Jun 24, 1946 | 18.48 |
| Jun 18, 2018 | 18.32 |
| Apr 13, 1964 | 17.74 |
| Jun 24, 1951 | 17.72 |
Data provided by the National Weather Service.
