Thunder Bay River near Bolton
Critical Stages
Action
Flood
Moderate
Major
Latest Observation
Updated: 4:30 AM EST 12/17/25
Status: Not Defined
Stage: 13.05 ft
Flow: 0.824 kcfs
Forecast
Forecast not available for this location.
| Time | Stage (ft) | Flow (kcfs) |
|---|---|---|
| 5:30 AM 12/17 | 15.71 | 2 |
| 5:15 AM 12/17 | 12.28 | 0.544 |
| 5:00 AM 12/17 | 15.96 | 2.13 |
| 4:45 AM 12/17 | 12.46 | 0.608 |
| 4:30 AM 12/17 | 13.05 | 0.824 |
| 4:15 AM 12/17 | 12.44 | 0.601 |
| 4:00 AM 12/17 | 15.11 | 1.69 |
| 3:45 AM 12/17 | 12.46 | 0.608 |
| 3:30 AM 12/17 | 13.13 | 0.854 |
| 3:15 AM 12/17 | 13.47 | 0.983 |
| 3:00 AM 12/17 | 14.55 | 1.43 |
| 2:45 AM 12/17 | 13.57 | 1.02 |
| 2:30 AM 12/17 | 13.87 | 1.14 |
| 2:15 AM 12/17 | 12.69 | 0.691 |
| 2:00 AM 12/17 | 18.96 | -999 |
| 1:45 AM 12/17 | 17.92 | 3.43 |
| 1:30 AM 12/17 | 23.76 | -999 |
| 1:15 AM 12/17 | 12.62 | 0.666 |
| 1:00 AM 12/17 | 15.16 | 1.72 |
| 12:45 AM 12/17 | 13.79 | 1.11 |
| 12:30 AM 12/17 | 16.69 | 2.57 |
| 12:15 AM 12/17 | 19.03 | -999 |
| 12:00 AM 12/17 | 12.94 | 0.783 |
| 11:45 PM 12/16 | 13.67 | 1.06 |
| 11:30 PM 12/16 | 14.38 | 1.35 |
| 11:15 PM 12/16 | 12.68 | 0.688 |
| 11:00 PM 12/16 | 12.39 | 0.583 |
| 10:45 PM 12/16 | 13.1 | 0.843 |
| 10:30 PM 12/16 | 15.9 | 2.1 |
| 10:15 PM 12/16 | 13.35 | 0.937 |
No flood impact data available for this location.
| Date | Stage (ft) |
|---|---|
| Oct 26, 2017 | 18.24 |
| Apr 2, 2016 | 17.99 |
| Mar 25, 2022 | 17.89 |
| Apr 26, 2018 | 17.72 |
| Apr 29, 2011 | 17.69 |
| Apr 2, 2025 | 17.19 |
| Apr 16, 2014 | 17.18 |
| Apr 20, 2013 | 17.12 |
| Dec 28, 2022 | 16.82 |
| Apr 7, 2023 | 16.8 |
| Mar 14, 2006 | 16.77 |
| May 26, 2004 | 16.31 |
| Apr 13, 2008 | 16.23 |
| Apr 5, 2009 | 16.22 |
| Mar 15, 2012 | 16.14 |
| Apr 18, 2017 | 16.13 |
| Jan 1, 2020 | 16.13 |
| May 2, 2020 | 16.12 |
| Apr 20, 2019 | 16.09 |
| Feb 23, 2018 | 16 |
Data provided by the National Weather Service.
