Columbia River at St. Helens
Critical Stages
14.5' - Action
15.5' - Flood
18' - Moderate
21' - Major
Latest Observation
Updated: 8:42 PM PST 12/17/25
Status: No Flooding
Stage: 6.96 ft
Flow: -999 kcfs
Forecast
| Time | Stage (ft) | Flow (kcfs) |
|---|---|---|
| 10 PM 12/17 | 6.74 | -999 |
| 11 PM 12/17 | 6.44 | -999 |
| 12 AM 12/18 | 6.25 | -999 |
| 1 AM 12/18 | 6.31 | -999 |
| 2 AM 12/18 | 6.73 | -999 |
| 3 AM 12/18 | 7.29 | -999 |
| 4 AM 12/18 | 7.58 | -999 |
| 5 AM 12/18 | 7.62 | -999 |
| 6 AM 12/18 | 7.57 | -999 |
| 7 AM 12/18 | 7.47 | -999 |
| 8 AM 12/18 | 7.31 | -999 |
| 9 AM 12/18 | 7.15 | -999 |
| 10 AM 12/18 | 7.03 | -999 |
| 11 AM 12/18 | 7.11 | -999 |
| 12 PM 12/18 | 7.51 | -999 |
| 1 PM 12/18 | 7.91 | -999 |
| 2 PM 12/18 | 8.28 | -999 |
| 3 PM 12/18 | 8.47 | -999 |
| 4 PM 12/18 | 8.51 | -999 |
| 5 PM 12/18 | 8.45 | -999 |
| 6 PM 12/18 | 8.35 | -999 |
| 7 PM 12/18 | 8.25 | -999 |
| 8 PM 12/18 | 8.15 | -999 |
| 9 PM 12/18 | 8.08 | -999 |
| 10 PM 12/18 | 8.03 | -999 |
| 11 PM 12/18 | 8 | -999 |
| 12 AM 12/19 | 8.02 | -999 |
| 1 AM 12/19 | 8.12 | -999 |
| 2 AM 12/19 | 8.4 | -999 |
| 3 AM 12/19 | 8.88 | -999 |
| 4 AM 12/19 | 9.44 | -999 |
| 5 AM 12/19 | 9.82 | -999 |
| 6 AM 12/19 | 10.11 | -999 |
| 7 AM 12/19 | 10.35 | -999 |
| 8 AM 12/19 | 10.55 | -999 |
| 9 AM 12/19 | 10.73 | -999 |
| 10 AM 12/19 | 10.92 | -999 |
| 11 AM 12/19 | 11.1 | -999 |
| 12 PM 12/19 | 11.31 | -999 |
| 1 PM 12/19 | 11.62 | -999 |
| 2 PM 12/19 | 12 | -999 |
| 3 PM 12/19 | 12.35 | -999 |
| 4 PM 12/19 | 12.59 | -999 |
| 5 PM 12/19 | 12.75 | -999 |
| 6 PM 12/19 | 12.84 | -999 |
| 7 PM 12/19 | 12.82 | -999 |
| 8 PM 12/19 | 12.69 | -999 |
| 9 PM 12/19 | 12.53 | -999 |
| 10 PM 12/19 | 12.4 | -999 |
| 11 PM 12/19 | 12.28 | -999 |
| 12 AM 12/20 | 12.18 | -999 |
| 1 AM 12/20 | 12.12 | -999 |
| 2 AM 12/20 | 12.17 | -999 |
| 3 AM 12/20 | 12.4 | -999 |
| 4 AM 12/20 | 12.72 | -999 |
| 5 AM 12/20 | 12.93 | -999 |
| 6 AM 12/20 | 13.03 | -999 |
| 7 AM 12/20 | 13.04 | -999 |
| 8 AM 12/20 | 12.97 | -999 |
| 9 AM 12/20 | 12.84 | -999 |
| 10 AM 12/20 | 12.71 | -999 |
| 11 AM 12/20 | 12.6 | -999 |
| 12 PM 12/20 | 12.55 | -999 |
| 1 PM 12/20 | 12.63 | -999 |
| 2 PM 12/20 | 12.82 | -999 |
| 3 PM 12/20 | 12.95 | -999 |
| 4 PM 12/20 | 13.05 | -999 |
| 5 PM 12/20 | 13.11 | -999 |
| 6 PM 12/20 | 13.11 | -999 |
| 7 PM 12/20 | 13.02 | -999 |
| 8 PM 12/20 | 12.82 | -999 |
| 9 PM 12/20 | 12.57 | -999 |
| 10 PM 12/20 | 12.34 | -999 |
| 11 PM 12/20 | 12.13 | -999 |
| 12 AM 12/21 | 11.94 | -999 |
| 1 AM 12/21 | 11.8 | -999 |
| 2 AM 12/21 | 11.74 | -999 |
| 3 AM 12/21 | 11.84 | -999 |
| 4 AM 12/21 | 11.99 | -999 |
| 5 AM 12/21 | 12.08 | -999 |
| 6 AM 12/21 | 12.15 | -999 |
| 7 AM 12/21 | 12.19 | -999 |
| 8 AM 12/21 | 12.18 | -999 |
| 9 AM 12/21 | 12.13 | -999 |
| 10 AM 12/21 | 12.05 | -999 |
| 11 AM 12/21 | 11.95 | -999 |
| 12 PM 12/21 | 11.86 | -999 |
| 1 PM 12/21 | 11.82 | -999 |
| 2 PM 12/21 | 11.83 | -999 |
| 3 PM 12/21 | 11.92 | -999 |
| 4 PM 12/21 | 12.05 | -999 |
| 5 PM 12/21 | 12.13 | -999 |
| 6 PM 12/21 | 12.12 | -999 |
| 7 PM 12/21 | 12.06 | -999 |
| 8 PM 12/21 | 11.96 | -999 |
| 9 PM 12/21 | 11.82 | -999 |
| 10 PM 12/21 | 11.64 | -999 |
| 11 PM 12/21 | 11.43 | -999 |
| 12 AM 12/22 | 11.22 | -999 |
| 1 AM 12/22 | 11.04 | -999 |
| 2 AM 12/22 | 10.92 | -999 |
| 3 AM 12/22 | 10.86 | -999 |
| 4 AM 12/22 | 10.86 | -999 |
| 5 AM 12/22 | 10.94 | -999 |
| 6 AM 12/22 | 11.05 | -999 |
| 7 AM 12/22 | 11.1 | -999 |
| 8 AM 12/22 | 11.07 | -999 |
| 9 AM 12/22 | 11.02 | -999 |
| 10 AM 12/22 | 10.95 | -999 |
| 11 AM 12/22 | 10.85 | -999 |
| 12 PM 12/22 | 10.73 | -999 |
| 1 PM 12/22 | 10.63 | -999 |
| 2 PM 12/22 | 10.58 | -999 |
| 3 PM 12/22 | 10.65 | -999 |
| 4 PM 12/22 | 10.86 | -999 |
| 5 PM 12/22 | 11.02 | -999 |
| 6 PM 12/22 | 11.04 | -999 |
| 7 PM 12/22 | 11 | -999 |
| 8 PM 12/22 | 10.92 | -999 |
| 9 PM 12/22 | 10.79 | -999 |
| 10 PM 12/22 | 10.63 | -999 |
| 11 PM 12/22 | 10.45 | -999 |
| 12 AM 12/23 | 10.26 | -999 |
| 1 AM 12/23 | 10.07 | -999 |
| 2 AM 12/23 | 9.89 | -999 |
| 3 AM 12/23 | 9.73 | -999 |
| 4 AM 12/23 | 9.64 | -999 |
| 5 AM 12/23 | 9.68 | -999 |
| 6 AM 12/23 | 9.83 | -999 |
| 7 AM 12/23 | 9.91 | -999 |
| 8 AM 12/23 | 9.9 | -999 |
| 9 AM 12/23 | 9.87 | -999 |
| 10 AM 12/23 | 9.8 | -999 |
| 11 AM 12/23 | 9.69 | -999 |
| 12 PM 12/23 | 9.55 | -999 |
| 1 PM 12/23 | 9.42 | -999 |
| 2 PM 12/23 | 9.31 | -999 |
| 3 PM 12/23 | 9.32 | -999 |
| 4 PM 12/23 | 9.5 | -999 |
| 5 PM 12/23 | 9.74 | -999 |
| 6 PM 12/23 | 9.86 | -999 |
| 7 PM 12/23 | 9.86 | -999 |
| 8 PM 12/23 | 9.82 | -999 |
| 9 PM 12/23 | 9.74 | -999 |
| 10 PM 12/23 | 9.59 | -999 |
| 11 PM 12/23 | 9.4 | -999 |
| 12 AM 12/24 | 9.2 | -999 |
| 1 AM 12/24 | 9.01 | -999 |
| 2 AM 12/24 | 8.81 | -999 |
| 3 AM 12/24 | 8.65 | -999 |
| 4 AM 12/24 | 8.58 | -999 |
| 5 AM 12/24 | 8.65 | -999 |
| 6 AM 12/24 | 8.87 | -999 |
| 7 AM 12/24 | 9.07 | -999 |
| 8 AM 12/24 | 9.14 | -999 |
| 9 AM 12/24 | 9.14 | -999 |
| 10 AM 12/24 | 9.11 | -999 |
| 11 AM 12/24 | 9.04 | -999 |
| 12 PM 12/24 | 8.93 | -999 |
| 1 PM 12/24 | 8.79 | -999 |
| 2 PM 12/24 | 8.68 | -999 |
| 3 PM 12/24 | 8.64 | -999 |
| 4 PM 12/24 | 8.76 | -999 |
| 5 PM 12/24 | 9.03 | -999 |
| 6 PM 12/24 | 9.32 | -999 |
| 7 PM 12/24 | 9.39 | -999 |
| 8 PM 12/24 | 9.32 | -999 |
| 9 PM 12/24 | 9.23 | -999 |
| 10 PM 12/24 | 9.1 | -999 |
| 11 PM 12/24 | 8.92 | -999 |
| 12 AM 12/25 | 8.72 | -999 |
| 1 AM 12/25 | 8.55 | -999 |
| 2 AM 12/25 | 8.4 | -999 |
| 3 AM 12/25 | 8.27 | -999 |
| 4 AM 12/25 | 8.17 | -999 |
| 5 AM 12/25 | 8.17 | -999 |
| 6 AM 12/25 | 8.29 | -999 |
| 7 AM 12/25 | 8.46 | -999 |
| 8 AM 12/25 | 8.59 | -999 |
| 9 AM 12/25 | 8.61 | -999 |
| 10 AM 12/25 | 8.6 | -999 |
| 11 AM 12/25 | 8.57 | -999 |
| 12 PM 12/25 | 8.51 | -999 |
| 1 PM 12/25 | 8.42 | -999 |
| 2 PM 12/25 | 8.31 | -999 |
| 3 PM 12/25 | 8.22 | -999 |
| 4 PM 12/25 | 8.17 | -999 |
| 5 PM 12/25 | 8.21 | -999 |
| 6 PM 12/25 | 8.34 | -999 |
| 7 PM 12/25 | 8.48 | -999 |
| 8 PM 12/25 | 8.51 | -999 |
| 9 PM 12/25 | 8.47 | -999 |
| 10 PM 12/25 | 8.42 | -999 |
| 11 PM 12/25 | 8.35 | -999 |
| 12 AM 12/26 | 8.24 | -999 |
| 1 AM 12/26 | 8.12 | -999 |
| 2 AM 12/26 | 7.98 | -999 |
| 3 AM 12/26 | 7.85 | -999 |
| 4 AM 12/26 | 7.73 | -999 |
| 5 AM 12/26 | 7.66 | -999 |
| 6 AM 12/26 | 7.7 | -999 |
| 7 AM 12/26 | 7.89 | -999 |
| 8 AM 12/26 | 8.15 | -999 |
| 9 AM 12/26 | 8.31 | -999 |
| 10 AM 12/26 | 8.33 | -999 |
| 11 AM 12/26 | 8.29 | -999 |
| 12 PM 12/26 | 8.22 | -999 |
| 1 PM 12/26 | 8.14 | -999 |
| 2 PM 12/26 | 8.03 | -999 |
| 3 PM 12/26 | 7.92 | -999 |
| 4 PM 12/26 | 7.81 | -999 |
| 5 PM 12/26 | 7.73 | -999 |
| 6 PM 12/26 | 7.74 | -999 |
| 7 PM 12/26 | 7.86 | -999 |
| 8 PM 12/26 | 7.99 | -999 |
| 9 PM 12/26 | 8.02 | -999 |
| 10 PM 12/26 | 7.97 | -999 |
| 11 PM 12/26 | 7.9 | -999 |
| 12 AM 12/27 | 7.81 | -999 |
| 1 AM 12/27 | 7.71 | -999 |
| 2 AM 12/27 | 7.59 | -999 |
| 3 AM 12/27 | 7.44 | -999 |
| 4 AM 12/27 | 7.22 | -999 |
| Time | Stage (ft) | Flow (kcfs) |
|---|---|---|
| 8:42 PM 12/17 | 6.96 | -999 |
| 8:36 PM 12/17 | 6.99 | -999 |
| 8:18 PM 12/17 | 7.03 | -999 |
| 8:12 PM 12/17 | 7.05 | -999 |
| 8:06 PM 12/17 | -9999 | -999 |
| 7:54 PM 12/17 | 7.11 | -999 |
| 7:48 PM 12/17 | -9999 | -999 |
| 7:42 PM 12/17 | 7.16 | -999 |
| 7:36 PM 12/17 | -9999 | -999 |
| 7:24 PM 12/17 | 7.21 | -999 |
| 7:18 PM 12/17 | 7.24 | -999 |
| 7:12 PM 12/17 | 7.25 | -999 |
| 7:06 PM 12/17 | 7.27 | -999 |
| 6:48 PM 12/17 | 7.34 | -999 |
| 6:42 PM 12/17 | 7.37 | -999 |
| 6:36 PM 12/17 | 7.38 | -999 |
| 6:18 PM 12/17 | 7.46 | -999 |
| 6:12 PM 12/17 | 7.47 | -999 |
| 6:06 PM 12/17 | 7.5 | -999 |
| 5:42 PM 12/17 | 7.6 | -999 |
| 5:36 PM 12/17 | 7.62 | -999 |
| 5:18 PM 12/17 | 7.7 | -999 |
| 5:12 PM 12/17 | 7.72 | -999 |
| 5:06 PM 12/17 | 7.75 | -999 |
| 4:48 PM 12/17 | 7.83 | -999 |
| 4:42 PM 12/17 | 7.85 | -999 |
| 4:36 PM 12/17 | -9999 | -999 |
| 4:24 PM 12/17 | 7.91 | -999 |
| 4:18 PM 12/17 | 7.92 | -999 |
| 4:12 PM 12/17 | 7.94 | -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.
