Columbia River at St. Helens
Critical Stages
14.5' - Action
15.5' - Flood
18' - Moderate
21' - Major
Latest Observation
Updated: 1:42 PM PST 12/10/25
Status: No Flooding
Stage: 8.85 ft
Flow: -999 kcfs
Forecast
| Time | Stage (ft) | Flow (kcfs) |
|---|---|---|
| 3 PM 12/10 | 8.84 | -999 |
| 4 PM 12/10 | 8.75 | -999 |
| 5 PM 12/10 | 8.76 | -999 |
| 6 PM 12/10 | 8.94 | -999 |
| 7 PM 12/10 | 9.21 | -999 |
| 8 PM 12/10 | 9.37 | -999 |
| 9 PM 12/10 | 9.36 | -999 |
| 10 PM 12/10 | 9.29 | -999 |
| 11 PM 12/10 | 9.18 | -999 |
| 12 AM 12/11 | 9.07 | -999 |
| 1 AM 12/11 | 8.94 | -999 |
| 2 AM 12/11 | 8.8 | -999 |
| 3 AM 12/11 | 8.64 | -999 |
| 4 AM 12/11 | 8.5 | -999 |
| 5 AM 12/11 | 8.38 | -999 |
| 6 AM 12/11 | 8.36 | -999 |
| 7 AM 12/11 | 8.52 | -999 |
| 8 AM 12/11 | 8.83 | -999 |
| 9 AM 12/11 | 9.12 | -999 |
| 10 AM 12/11 | 9.22 | -999 |
| 11 AM 12/11 | 9.17 | -999 |
| 12 PM 12/11 | 9.08 | -999 |
| 1 PM 12/11 | 8.96 | -999 |
| 2 PM 12/11 | 8.81 | -999 |
| 3 PM 12/11 | 8.66 | -999 |
| 4 PM 12/11 | 8.49 | -999 |
| 5 PM 12/11 | 8.35 | -999 |
| 6 PM 12/11 | 8.26 | -999 |
| 7 PM 12/11 | 8.27 | -999 |
| 8 PM 12/11 | 8.37 | -999 |
| 9 PM 12/11 | 8.45 | -999 |
| 10 PM 12/11 | 8.43 | -999 |
| 11 PM 12/11 | 8.36 | -999 |
| 12 AM 12/12 | 8.26 | -999 |
| 1 AM 12/12 | 8.14 | -999 |
| 2 AM 12/12 | 8 | -999 |
| 3 AM 12/12 | 7.86 | -999 |
| 4 AM 12/12 | 7.71 | -999 |
| 5 AM 12/12 | 7.55 | -999 |
| 6 AM 12/12 | 7.44 | -999 |
| 7 AM 12/12 | 7.49 | -999 |
| 8 AM 12/12 | 7.81 | -999 |
| 9 AM 12/12 | 8.19 | -999 |
| 10 AM 12/12 | 8.45 | -999 |
| 11 AM 12/12 | 8.51 | -999 |
| 12 PM 12/12 | 8.45 | -999 |
| 1 PM 12/12 | 8.33 | -999 |
| 2 PM 12/12 | 8.18 | -999 |
| 3 PM 12/12 | 8.01 | -999 |
| 4 PM 12/12 | 7.81 | -999 |
| 5 PM 12/12 | 7.6 | -999 |
| 6 PM 12/12 | 7.38 | -999 |
| 7 PM 12/12 | 7.23 | -999 |
| 8 PM 12/12 | 7.18 | -999 |
| 9 PM 12/12 | 7.24 | -999 |
| 10 PM 12/12 | 7.31 | -999 |
| 11 PM 12/12 | 7.31 | -999 |
| 12 AM 12/13 | 7.24 | -999 |
| 1 AM 12/13 | 7.13 | -999 |
| 2 AM 12/13 | 7 | -999 |
| 3 AM 12/13 | 6.85 | -999 |
| 4 AM 12/13 | 6.68 | -999 |
| 5 AM 12/13 | 6.51 | -999 |
| 6 AM 12/13 | 6.38 | -999 |
| 7 AM 12/13 | 6.37 | -999 |
| 8 AM 12/13 | 6.59 | -999 |
| 9 AM 12/13 | 7.04 | -999 |
| 10 AM 12/13 | 7.51 | -999 |
| 11 AM 12/13 | 7.78 | -999 |
| 12 PM 12/13 | 7.84 | -999 |
| 1 PM 12/13 | 7.74 | -999 |
| 2 PM 12/13 | 7.53 | -999 |
| 3 PM 12/13 | 7.32 | -999 |
| 4 PM 12/13 | 7.08 | -999 |
| 5 PM 12/13 | 6.82 | -999 |
| 6 PM 12/13 | 6.56 | -999 |
| 7 PM 12/13 | 6.33 | -999 |
| 8 PM 12/13 | 6.15 | -999 |
| 9 PM 12/13 | 6.08 | -999 |
| 10 PM 12/13 | 6.17 | -999 |
| 11 PM 12/13 | 6.33 | -999 |
| 12 AM 12/14 | 6.45 | -999 |
| 1 AM 12/14 | 6.43 | -999 |
| 2 AM 12/14 | 6.32 | -999 |
| 3 AM 12/14 | 6.18 | -999 |
| 4 AM 12/14 | 6.02 | -999 |
| 5 AM 12/14 | 5.84 | -999 |
| 6 AM 12/14 | 5.68 | -999 |
| 7 AM 12/14 | 5.59 | -999 |
| 8 AM 12/14 | 5.65 | -999 |
| 9 AM 12/14 | 5.97 | -999 |
| 10 AM 12/14 | 6.51 | -999 |
| 11 AM 12/14 | 7.01 | -999 |
| 12 PM 12/14 | 7.23 | -999 |
| 1 PM 12/14 | 7.24 | -999 |
| 2 PM 12/14 | 7.13 | -999 |
| 3 PM 12/14 | 6.91 | -999 |
| 4 PM 12/14 | 6.64 | -999 |
| 5 PM 12/14 | 6.36 | -999 |
| 6 PM 12/14 | 6.07 | -999 |
| 7 PM 12/14 | 5.78 | -999 |
| 8 PM 12/14 | 5.56 | -999 |
| 9 PM 12/14 | 5.39 | -999 |
| 10 PM 12/14 | 5.33 | -999 |
| 11 PM 12/14 | 5.46 | -999 |
| 12 AM 12/15 | 5.7 | -999 |
| 1 AM 12/15 | 5.94 | -999 |
| 2 AM 12/15 | 6.04 | -999 |
| 3 AM 12/15 | 6 | -999 |
| 4 AM 12/15 | 5.85 | -999 |
| 5 AM 12/15 | 5.68 | -999 |
| 6 AM 12/15 | 5.53 | -999 |
| 7 AM 12/15 | 5.42 | -999 |
| 8 AM 12/15 | 5.42 | -999 |
| 9 AM 12/15 | 5.61 | -999 |
| 10 AM 12/15 | 6.1 | -999 |
| 11 AM 12/15 | 6.8 | -999 |
| 12 PM 12/15 | 7.34 | -999 |
| 1 PM 12/15 | 7.53 | -999 |
| 2 PM 12/15 | 7.48 | -999 |
| 3 PM 12/15 | 7.32 | -999 |
| 4 PM 12/15 | 7.06 | -999 |
| 5 PM 12/15 | 6.73 | -999 |
| 6 PM 12/15 | 6.38 | -999 |
| 7 PM 12/15 | 6.03 | -999 |
| 8 PM 12/15 | 5.69 | -999 |
| 9 PM 12/15 | 5.44 | -999 |
| 10 PM 12/15 | 5.28 | -999 |
| 11 PM 12/15 | 5.29 | -999 |
| 12 AM 12/16 | 5.54 | -999 |
| 1 AM 12/16 | 5.94 | -999 |
| 2 AM 12/16 | 6.26 | -999 |
| 3 AM 12/16 | 6.34 | -999 |
| 4 AM 12/16 | 6.29 | -999 |
| 5 AM 12/16 | 6.16 | -999 |
| 6 AM 12/16 | 5.97 | -999 |
| 7 AM 12/16 | 5.78 | -999 |
| 8 AM 12/16 | 5.65 | -999 |
| 9 AM 12/16 | 5.66 | -999 |
| 10 AM 12/16 | 5.9 | -999 |
| 11 AM 12/16 | 6.46 | -999 |
| 12 PM 12/16 | 7.15 | -999 |
| 1 PM 12/16 | 7.6 | -999 |
| 2 PM 12/16 | 7.71 | -999 |
| 3 PM 12/16 | 7.64 | -999 |
| 4 PM 12/16 | 7.47 | -999 |
| 5 PM 12/16 | 7.2 | -999 |
| 6 PM 12/16 | 6.89 | -999 |
| 7 PM 12/16 | 6.58 | -999 |
| 8 PM 12/16 | 6.27 | -999 |
| 9 PM 12/16 | 5.98 | -999 |
| 10 PM 12/16 | 5.72 | -999 |
| 11 PM 12/16 | 5.61 | -999 |
| 12 AM 12/17 | 5.73 | -999 |
| 1 AM 12/17 | 6.19 | -999 |
| 2 AM 12/17 | 6.76 | -999 |
| 3 AM 12/17 | 7.13 | -999 |
| 4 AM 12/17 | 7.22 | -999 |
| 5 AM 12/17 | 7.16 | -999 |
| 6 AM 12/17 | 7.01 | -999 |
| 7 AM 12/17 | 6.82 | -999 |
| 8 AM 12/17 | 6.64 | -999 |
| 9 AM 12/17 | 6.52 | -999 |
| 10 AM 12/17 | 6.57 | -999 |
| 11 AM 12/17 | 6.91 | -999 |
| 12 PM 12/17 | 7.49 | -999 |
| 1 PM 12/17 | 7.99 | -999 |
| 2 PM 12/17 | 8.18 | -999 |
| 3 PM 12/17 | 8.16 | -999 |
| 4 PM 12/17 | 8.04 | -999 |
| 5 PM 12/17 | 7.82 | -999 |
| 6 PM 12/17 | 7.56 | -999 |
| 7 PM 12/17 | 7.26 | -999 |
| 8 PM 12/17 | 6.94 | -999 |
| 9 PM 12/17 | 6.63 | -999 |
| 10 PM 12/17 | 6.33 | -999 |
| 11 PM 12/17 | 6.07 | -999 |
| 12 AM 12/18 | 5.95 | -999 |
| 1 AM 12/18 | 6.09 | -999 |
| 2 AM 12/18 | 6.51 | -999 |
| 3 AM 12/18 | 7 | -999 |
| 4 AM 12/18 | 7.31 | -999 |
| 5 AM 12/18 | 7.41 | -999 |
| 6 AM 12/18 | 7.34 | -999 |
| 7 AM 12/18 | 7.19 | -999 |
| 8 AM 12/18 | 7.04 | -999 |
| 9 AM 12/18 | 6.9 | -999 |
| 10 AM 12/18 | 6.79 | -999 |
| 11 AM 12/18 | 6.84 | -999 |
| 12 PM 12/18 | 7.16 | -999 |
| 1 PM 12/18 | 7.74 | -999 |
| 2 PM 12/18 | 8.22 | -999 |
| 3 PM 12/18 | 8.48 | -999 |
| 4 PM 12/18 | 8.53 | -999 |
| 5 PM 12/18 | 8.43 | -999 |
| 6 PM 12/18 | 8.28 | -999 |
| 7 PM 12/18 | 8.11 | -999 |
| 8 PM 12/18 | 7.92 | -999 |
| 9 PM 12/18 | 7.71 | -999 |
| 10 PM 12/18 | 7.47 | -999 |
| 11 PM 12/18 | 7.26 | -999 |
| 12 AM 12/19 | 7.09 | -999 |
| 1 AM 12/19 | 7.08 | -999 |
| 2 AM 12/19 | 7.38 | -999 |
| 3 AM 12/19 | 7.9 | -999 |
| 4 AM 12/19 | 8.25 | -999 |
| 5 AM 12/19 | 8.37 | -999 |
| 6 AM 12/19 | 8.36 | -999 |
| 7 AM 12/19 | 8.31 | -999 |
| 8 AM 12/19 | 8.24 | -999 |
| 9 AM 12/19 | 8.18 | -999 |
| 10 AM 12/19 | 8.14 | -999 |
| 11 AM 12/19 | 8.17 | -999 |
| 12 PM 12/19 | 8.39 | -999 |
| 1 PM 12/19 | 8.8 | -999 |
| 2 PM 12/19 | 9.23 | -999 |
| 3 PM 12/19 | 9.5 | -999 |
| 4 PM 12/19 | 9.56 | -999 |
| 5 PM 12/19 | 9.51 | -999 |
| 6 PM 12/19 | 9.43 | -999 |
| 7 PM 12/19 | 9.34 | -999 |
| 8 PM 12/19 | 9.23 | -999 |
| 9 PM 12/19 | 9.07 | -999 |
| 10 PM 12/19 | 8.91 | -999 |
| 11 PM 12/19 | 8.75 | -999 |
| 12 AM 12/20 | 8.6 | -999 |
| 1 AM 12/20 | 8.51 | -999 |
| 2 AM 12/20 | 8.54 | -999 |
| 3 AM 12/20 | 8.74 | -999 |
| 4 AM 12/20 | 9.02 | -999 |
| Time | Stage (ft) | Flow (kcfs) |
|---|---|---|
| 1:54 PM 12/10 | 8.81 | -999 |
| 1:48 PM 12/10 | 8.84 | -999 |
| 1:42 PM 12/10 | 8.85 | -999 |
| 1:36 PM 12/10 | 8.85 | -999 |
| 1:18 PM 12/10 | 8.91 | -999 |
| 1:12 PM 12/10 | 8.92 | -999 |
| 1:06 PM 12/10 | 8.92 | -999 |
| 12:48 PM 12/10 | 8.97 | -999 |
| 12:42 PM 12/10 | 8.98 | -999 |
| 12:36 PM 12/10 | 9.01 | -999 |
| 12:18 PM 12/10 | 9.05 | -999 |
| 12:12 PM 12/10 | 9.06 | -999 |
| 12:06 PM 12/10 | 9.08 | -999 |
| 11:48 AM 12/10 | 9.13 | -999 |
| 11:42 AM 12/10 | 9.15 | -999 |
| 11:36 AM 12/10 | 9.17 | -999 |
| 11:18 AM 12/10 | 9.21 | -999 |
| 11:12 AM 12/10 | 9.23 | -999 |
| 11:06 AM 12/10 | 9.25 | -999 |
| 10:48 AM 12/10 | 9.28 | -999 |
| 10:42 AM 12/10 | 9.3 | -999 |
| 10:36 AM 12/10 | 9.3 | -999 |
| 10:18 AM 12/10 | 9.33 | -999 |
| 10:12 AM 12/10 | 9.34 | -999 |
| 10:06 AM 12/10 | 9.36 | -999 |
| 9:48 AM 12/10 | 9.38 | -999 |
| 9:42 AM 12/10 | 9.39 | -999 |
| 9:36 AM 12/10 | 9.39 | -999 |
| 9:18 AM 12/10 | 9.39 | -999 |
| 9:12 AM 12/10 | 9.39 | -999 |
23' -
expect major flooding, especially near Kalama Washington. This river level historically nears the tops of several levees along the Columbia and Lewis Rivers.
21' -
expect major flooding near St. Helens Oregon and Kalama Washington, along with widespread flooding of lowland agricultural areas.
19' -
expect widespread lowland flooding. Levee watches have historically been in effect at this and higher stages for Bachelor Island and locations near Lewis River confluence.
17' -
expect flooding of low lying farmland to begin. Levee watches along the Lewis River historically have been in effect at this level.
15.5' -
expect flooding of low areas along the Columbia.
| Date | Stage (ft) |
|---|---|
| Jun 14, 1948 | 27.1 |
| Dec 25, 1964 | 24 |
| Jun 5, 1956 | 23.2 |
| Feb 10, 1996 | 23 |
| Jun 27, 1950 | 21.6 |
| Jun 10, 1961 | 20.1 |
| May 23, 1957 | 19.8 |
| Jan 3, 1996 | 19.78 |
| Jan 31, 1965 | 19.6 |
| May 19, 1949 | 19.2 |
| Jun 16, 1953 | 18.4 |
| Jun 1, 1946 | 18.1 |
| Jun 23, 1967 | 17.8 |
| Dec 25, 1955 | 17.8 |
| Jun 1, 1958 | 17.4 |
| Jun 19, 1954 | 17.1 |
| Mar 30, 2017 | 15.8 |
Data provided by the National Weather Service.
