Columbia River at St. Helens
Critical Stages
14.5' - Action
15.5' - Flood
18' - Moderate
21' - Major
Latest Observation
Updated: 9:24 AM PST 12/16/25
Status: No Flooding
Stage: 5.71 ft
Flow: -999 kcfs
Forecast
| Time | Stage (ft) | Flow (kcfs) |
|---|---|---|
| 11 AM 12/16 | 6.38 | -999 |
| 12 PM 12/16 | 6.9 | -999 |
| 1 PM 12/16 | 7.24 | -999 |
| 2 PM 12/16 | 7.34 | -999 |
| 3 PM 12/16 | 7.28 | -999 |
| 4 PM 12/16 | 7.14 | -999 |
| 5 PM 12/16 | 6.93 | -999 |
| 6 PM 12/16 | 6.7 | -999 |
| 7 PM 12/16 | 6.45 | -999 |
| 8 PM 12/16 | 6.18 | -999 |
| 9 PM 12/16 | 5.93 | -999 |
| 10 PM 12/16 | 5.7 | -999 |
| 11 PM 12/16 | 5.58 | -999 |
| 12 AM 12/17 | 5.7 | -999 |
| 1 AM 12/17 | 6.13 | -999 |
| 2 AM 12/17 | 6.72 | -999 |
| 3 AM 12/17 | 7.08 | -999 |
| 4 AM 12/17 | 7.16 | -999 |
| 5 AM 12/17 | 7.11 | -999 |
| 6 AM 12/17 | 6.99 | -999 |
| 7 AM 12/17 | 6.84 | -999 |
| 8 AM 12/17 | 6.7 | -999 |
| 9 AM 12/17 | 6.58 | -999 |
| 10 AM 12/17 | 6.55 | -999 |
| 11 AM 12/17 | 6.71 | -999 |
| 12 PM 12/17 | 7.06 | -999 |
| 1 PM 12/17 | 7.45 | -999 |
| 2 PM 12/17 | 7.67 | -999 |
| 3 PM 12/17 | 7.7 | -999 |
| 4 PM 12/17 | 7.61 | -999 |
| 5 PM 12/17 | 7.45 | -999 |
| 6 PM 12/17 | 7.27 | -999 |
| 7 PM 12/17 | 7.07 | -999 |
| 8 PM 12/17 | 6.86 | -999 |
| 9 PM 12/17 | 6.65 | -999 |
| 10 PM 12/17 | 6.42 | -999 |
| 11 PM 12/17 | 6.2 | -999 |
| 12 AM 12/18 | 6.07 | -999 |
| 1 AM 12/18 | 6.13 | -999 |
| 2 AM 12/18 | 6.46 | -999 |
| 3 AM 12/18 | 6.87 | -999 |
| 4 AM 12/18 | 7.13 | -999 |
| 5 AM 12/18 | 7.2 | -999 |
| 6 AM 12/18 | 7.15 | -999 |
| 7 AM 12/18 | 7.06 | -999 |
| 8 AM 12/18 | 6.96 | -999 |
| 9 AM 12/18 | 6.85 | -999 |
| 10 AM 12/18 | 6.78 | -999 |
| 11 AM 12/18 | 6.84 | -999 |
| 12 PM 12/18 | 7.14 | -999 |
| 1 PM 12/18 | 7.67 | -999 |
| 2 PM 12/18 | 8.18 | -999 |
| 3 PM 12/18 | 8.44 | -999 |
| 4 PM 12/18 | 8.47 | -999 |
| 5 PM 12/18 | 8.36 | -999 |
| 6 PM 12/18 | 8.21 | -999 |
| 7 PM 12/18 | 8.05 | -999 |
| 8 PM 12/18 | 7.88 | -999 |
| 9 PM 12/18 | 7.72 | -999 |
| 10 PM 12/18 | 7.59 | -999 |
| 11 PM 12/18 | 7.49 | -999 |
| 12 AM 12/19 | 7.43 | -999 |
| 1 AM 12/19 | 7.48 | -999 |
| 2 AM 12/19 | 7.75 | -999 |
| 3 AM 12/19 | 8.2 | -999 |
| 4 AM 12/19 | 8.67 | -999 |
| 5 AM 12/19 | 8.8 | -999 |
| 6 AM 12/19 | 8.96 | -999 |
| 7 AM 12/19 | 9.11 | -999 |
| 8 AM 12/19 | 9.22 | -999 |
| 9 AM 12/19 | 9.28 | -999 |
| 10 AM 12/19 | 9.32 | -999 |
| 11 AM 12/19 | 9.39 | -999 |
| 12 PM 12/19 | 9.52 | -999 |
| 1 PM 12/19 | 9.79 | -999 |
| 2 PM 12/19 | 10.16 | -999 |
| 3 PM 12/19 | 10.47 | -999 |
| 4 PM 12/19 | 10.66 | -999 |
| 5 PM 12/19 | 10.77 | -999 |
| 6 PM 12/19 | 10.82 | -999 |
| 7 PM 12/19 | 10.83 | -999 |
| 8 PM 12/19 | 10.78 | -999 |
| 9 PM 12/19 | 10.72 | -999 |
| 10 PM 12/19 | 10.65 | -999 |
| 11 PM 12/19 | 10.58 | -999 |
| 12 AM 12/20 | 10.51 | -999 |
| 1 AM 12/20 | 10.47 | -999 |
| 2 AM 12/20 | 10.48 | -999 |
| 3 AM 12/20 | 10.56 | -999 |
| 4 AM 12/20 | 10.74 | -999 |
| 5 AM 12/20 | 10.92 | -999 |
| 6 AM 12/20 | 11.01 | -999 |
| 7 AM 12/20 | 11.05 | -999 |
| 8 AM 12/20 | 11.06 | -999 |
| 9 AM 12/20 | 11.04 | -999 |
| 10 AM 12/20 | 11 | -999 |
| 11 AM 12/20 | 10.95 | -999 |
| 12 PM 12/20 | 10.91 | -999 |
| 1 PM 12/20 | 10.91 | -999 |
| 2 PM 12/20 | 10.99 | -999 |
| 3 PM 12/20 | 11.15 | -999 |
| 4 PM 12/20 | 11.28 | -999 |
| 5 PM 12/20 | 11.33 | -999 |
| 6 PM 12/20 | 11.32 | -999 |
| 7 PM 12/20 | 11.28 | -999 |
| 8 PM 12/20 | 11.19 | -999 |
| 9 PM 12/20 | 11.08 | -999 |
| 10 PM 12/20 | 10.96 | -999 |
| 11 PM 12/20 | 10.82 | -999 |
| 12 AM 12/21 | 10.67 | -999 |
| 1 AM 12/21 | 10.53 | -999 |
| 2 AM 12/21 | 10.47 | -999 |
| 3 AM 12/21 | 10.46 | -999 |
| 4 AM 12/21 | 10.53 | -999 |
| 5 AM 12/21 | 10.75 | -999 |
| 6 AM 12/21 | 10.88 | -999 |
| 7 AM 12/21 | 10.92 | -999 |
| 8 AM 12/21 | 10.92 | -999 |
| 9 AM 12/21 | 10.91 | -999 |
| 10 AM 12/21 | 10.85 | -999 |
| 11 AM 12/21 | 10.78 | -999 |
| 12 PM 12/21 | 10.7 | -999 |
| 1 PM 12/21 | 10.66 | -999 |
| 2 PM 12/21 | 10.74 | -999 |
| 3 PM 12/21 | 10.94 | -999 |
| 4 PM 12/21 | 11.16 | -999 |
| 5 PM 12/21 | 11.24 | -999 |
| 6 PM 12/21 | 11.24 | -999 |
| 7 PM 12/21 | 11.18 | -999 |
| 8 PM 12/21 | 11.09 | -999 |
| 9 PM 12/21 | 10.96 | -999 |
| 10 PM 12/21 | 10.81 | -999 |
| 11 PM 12/21 | 10.64 | -999 |
| 12 AM 12/22 | 10.48 | -999 |
| 1 AM 12/22 | 10.32 | -999 |
| 2 AM 12/22 | 10.17 | -999 |
| 3 AM 12/22 | 10.08 | -999 |
| 4 AM 12/22 | 10.09 | -999 |
| 5 AM 12/22 | 10.26 | -999 |
| 6 AM 12/22 | 10.41 | -999 |
| 7 AM 12/22 | 10.46 | -999 |
| 8 AM 12/22 | 10.46 | -999 |
| 9 AM 12/22 | 10.42 | -999 |
| 10 AM 12/22 | 10.34 | -999 |
| 11 AM 12/22 | 10.24 | -999 |
| 12 PM 12/22 | 10.12 | -999 |
| 1 PM 12/22 | 10 | -999 |
| 2 PM 12/22 | 9.94 | -999 |
| 3 PM 12/22 | 10.03 | -999 |
| 4 PM 12/22 | 10.26 | -999 |
| 5 PM 12/22 | 10.43 | -999 |
| 6 PM 12/22 | 10.46 | -999 |
| 7 PM 12/22 | 10.42 | -999 |
| 8 PM 12/22 | 10.33 | -999 |
| 9 PM 12/22 | 10.18 | -999 |
| 10 PM 12/22 | 10 | -999 |
| 11 PM 12/22 | 9.8 | -999 |
| 12 AM 12/23 | 9.59 | -999 |
| 1 AM 12/23 | 9.38 | -999 |
| 2 AM 12/23 | 9.18 | -999 |
| 3 AM 12/23 | 9.01 | -999 |
| 4 AM 12/23 | 8.96 | -999 |
| 5 AM 12/23 | 9.13 | -999 |
| 6 AM 12/23 | 9.33 | -999 |
| 7 AM 12/23 | 9.41 | -999 |
| 8 AM 12/23 | 9.41 | -999 |
| 9 AM 12/23 | 9.37 | -999 |
| 10 AM 12/23 | 9.31 | -999 |
| 11 AM 12/23 | 9.19 | -999 |
| 12 PM 12/23 | 9.04 | -999 |
| 1 PM 12/23 | 8.9 | -999 |
| 2 PM 12/23 | 8.79 | -999 |
| 3 PM 12/23 | 8.78 | -999 |
| 4 PM 12/23 | 8.89 | -999 |
| 5 PM 12/23 | 9.06 | -999 |
| 6 PM 12/23 | 9.19 | -999 |
| 7 PM 12/23 | 9.2 | -999 |
| 8 PM 12/23 | 9.16 | -999 |
| 9 PM 12/23 | 9.08 | -999 |
| 10 PM 12/23 | 8.94 | -999 |
| 11 PM 12/23 | 8.77 | -999 |
| 12 AM 12/24 | 8.57 | -999 |
| 1 AM 12/24 | 8.36 | -999 |
| 2 AM 12/24 | 8.17 | -999 |
| 3 AM 12/24 | 8 | -999 |
| 4 AM 12/24 | 7.9 | -999 |
| 5 AM 12/24 | 7.99 | -999 |
| 6 AM 12/24 | 8.18 | -999 |
| 7 AM 12/24 | 8.37 | -999 |
| 8 AM 12/24 | 8.42 | -999 |
| 9 AM 12/24 | 8.38 | -999 |
| 10 AM 12/24 | 8.34 | -999 |
| 11 AM 12/24 | 8.27 | -999 |
| 12 PM 12/24 | 8.16 | -999 |
| 1 PM 12/24 | 8.03 | -999 |
| 2 PM 12/24 | 7.91 | -999 |
| 3 PM 12/24 | 7.87 | -999 |
| 4 PM 12/24 | 7.98 | -999 |
| 5 PM 12/24 | 8.23 | -999 |
| 6 PM 12/24 | 8.46 | -999 |
| 7 PM 12/24 | 8.5 | -999 |
| 8 PM 12/24 | 8.42 | -999 |
| 9 PM 12/24 | 8.31 | -999 |
| 10 PM 12/24 | 8.18 | -999 |
| 11 PM 12/24 | 8.02 | -999 |
| 12 AM 12/25 | 7.84 | -999 |
| 1 AM 12/25 | 7.64 | -999 |
| 2 AM 12/25 | 7.44 | -999 |
| 3 AM 12/25 | 7.26 | -999 |
| 4 AM 12/25 | 7.13 | -999 |
| Time | Stage (ft) | Flow (kcfs) |
|---|---|---|
| 9:42 AM 12/16 | 5.76 | -999 |
| 9:36 AM 12/16 | 5.74 | -999 |
| 9:24 AM 12/16 | 5.71 | -999 |
| 9:18 AM 12/16 | 5.69 | -999 |
| 9:12 AM 12/16 | 5.67 | -999 |
| 9:06 AM 12/16 | 5.65 | -999 |
| 8:54 AM 12/16 | 5.63 | -999 |
| 8:48 AM 12/16 | 5.64 | -999 |
| 8:42 AM 12/16 | 5.66 | -999 |
| 8:36 AM 12/16 | 5.64 | -999 |
| 8:24 AM 12/16 | 5.65 | -999 |
| 8:18 AM 12/16 | 5.62 | -999 |
| 8:12 AM 12/16 | 5.67 | -999 |
| 8:06 AM 12/16 | 5.67 | -999 |
| 7:48 AM 12/16 | 5.7 | -999 |
| 7:42 AM 12/16 | 5.7 | -999 |
| 7:36 AM 12/16 | 5.7 | -999 |
| 7:18 AM 12/16 | 5.75 | -999 |
| 7:12 AM 12/16 | 5.77 | -999 |
| 7:06 AM 12/16 | 5.83 | -999 |
| 6:48 AM 12/16 | 5.83 | -999 |
| 6:42 AM 12/16 | 5.82 | -999 |
| 6:36 AM 12/16 | 5.83 | -999 |
| 6:18 AM 12/16 | 5.89 | -999 |
| 6:12 AM 12/16 | 5.9 | -999 |
| 6:06 AM 12/16 | 5.92 | -999 |
| 5:48 AM 12/16 | 5.96 | -999 |
| 5:42 AM 12/16 | 5.98 | -999 |
| 5:36 AM 12/16 | 6 | -999 |
| 5:24 AM 12/16 | 6.03 | -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.
