Columbia River at St. Helens
Critical Stages
14.5' - Action
15.5' - Flood
18' - Moderate
21' - Major
Latest Observation
Updated: 3:42 PM PST 12/16/25
Status: No Flooding
Stage: 7.17 ft
Flow: -999 kcfs
Forecast
| Time | Stage (ft) | Flow (kcfs) |
|---|---|---|
| 5 PM 12/16 | 6.86 | -999 |
| 6 PM 12/16 | 6.59 | -999 |
| 7 PM 12/16 | 6.31 | -999 |
| 8 PM 12/16 | 6.03 | -999 |
| 9 PM 12/16 | 5.77 | -999 |
| 10 PM 12/16 | 5.53 | -999 |
| 11 PM 12/16 | 5.41 | -999 |
| 12 AM 12/17 | 5.54 | -999 |
| 1 AM 12/17 | 6.01 | -999 |
| 2 AM 12/17 | 6.65 | -999 |
| 3 AM 12/17 | 7.06 | -999 |
| 4 AM 12/17 | 7.14 | -999 |
| 5 AM 12/17 | 7.08 | -999 |
| 6 AM 12/17 | 6.95 | -999 |
| 7 AM 12/17 | 6.78 | -999 |
| 8 AM 12/17 | 6.63 | -999 |
| 9 AM 12/17 | 6.5 | -999 |
| 10 AM 12/17 | 6.48 | -999 |
| 11 AM 12/17 | 6.65 | -999 |
| 12 PM 12/17 | 7.03 | -999 |
| 1 PM 12/17 | 7.45 | -999 |
| 2 PM 12/17 | 7.7 | -999 |
| 3 PM 12/17 | 7.75 | -999 |
| 4 PM 12/17 | 7.65 | -999 |
| 5 PM 12/17 | 7.49 | -999 |
| 6 PM 12/17 | 7.31 | -999 |
| 7 PM 12/17 | 7.1 | -999 |
| 8 PM 12/17 | 6.88 | -999 |
| 9 PM 12/17 | 6.67 | -999 |
| 10 PM 12/17 | 6.45 | -999 |
| 11 PM 12/17 | 6.26 | -999 |
| 12 AM 12/18 | 6.12 | -999 |
| 1 AM 12/18 | 6.17 | -999 |
| 2 AM 12/18 | 6.5 | -999 |
| 3 AM 12/18 | 6.93 | -999 |
| 4 AM 12/18 | 7.21 | -999 |
| 5 AM 12/18 | 7.28 | -999 |
| 6 AM 12/18 | 7.24 | -999 |
| 7 AM 12/18 | 7.16 | -999 |
| 8 AM 12/18 | 7.06 | -999 |
| 9 AM 12/18 | 6.95 | -999 |
| 10 AM 12/18 | 6.87 | -999 |
| 11 AM 12/18 | 6.93 | -999 |
| 12 PM 12/18 | 7.25 | -999 |
| 1 PM 12/18 | 7.78 | -999 |
| 2 PM 12/18 | 8.3 | -999 |
| 3 PM 12/18 | 8.59 | -999 |
| 4 PM 12/18 | 8.64 | -999 |
| 5 PM 12/18 | 8.56 | -999 |
| 6 PM 12/18 | 8.42 | -999 |
| 7 PM 12/18 | 8.28 | -999 |
| 8 PM 12/18 | 8.14 | -999 |
| 9 PM 12/18 | 8.01 | -999 |
| 10 PM 12/18 | 7.89 | -999 |
| 11 PM 12/18 | 7.8 | -999 |
| 12 AM 12/19 | 7.75 | -999 |
| 1 AM 12/19 | 7.82 | -999 |
| 2 AM 12/19 | 8.13 | -999 |
| 3 AM 12/19 | 8.63 | -999 |
| 4 AM 12/19 | 9.1 | -999 |
| 5 AM 12/19 | 9.38 | -999 |
| 6 AM 12/19 | 9.59 | -999 |
| 7 AM 12/19 | 9.76 | -999 |
| 8 AM 12/19 | 9.86 | -999 |
| 9 AM 12/19 | 9.94 | -999 |
| 10 AM 12/19 | 10.01 | -999 |
| 11 AM 12/19 | 10.1 | -999 |
| 12 PM 12/19 | 10.27 | -999 |
| 1 PM 12/19 | 10.57 | -999 |
| 2 PM 12/19 | 10.97 | -999 |
| 3 PM 12/19 | 11.32 | -999 |
| 4 PM 12/19 | 11.52 | -999 |
| 5 PM 12/19 | 11.66 | -999 |
| 6 PM 12/19 | 11.72 | -999 |
| 7 PM 12/19 | 11.75 | -999 |
| 8 PM 12/19 | 11.73 | -999 |
| 9 PM 12/19 | 11.66 | -999 |
| 10 PM 12/19 | 11.54 | -999 |
| 11 PM 12/19 | 11.41 | -999 |
| 12 AM 12/20 | 11.3 | -999 |
| 1 AM 12/20 | 11.26 | -999 |
| 2 AM 12/20 | 11.35 | -999 |
| 3 AM 12/20 | 11.53 | -999 |
| 4 AM 12/20 | 11.68 | -999 |
| 5 AM 12/20 | 11.84 | -999 |
| 6 AM 12/20 | 11.94 | -999 |
| 7 AM 12/20 | 12 | -999 |
| 8 AM 12/20 | 12.02 | -999 |
| 9 AM 12/20 | 12.01 | -999 |
| 10 AM 12/20 | 11.95 | -999 |
| 11 AM 12/20 | 11.89 | -999 |
| 12 PM 12/20 | 11.86 | -999 |
| 1 PM 12/20 | 11.9 | -999 |
| 2 PM 12/20 | 11.98 | -999 |
| 3 PM 12/20 | 12.1 | -999 |
| 4 PM 12/20 | 12.22 | -999 |
| 5 PM 12/20 | 12.28 | -999 |
| 6 PM 12/20 | 12.28 | -999 |
| 7 PM 12/20 | 12.22 | -999 |
| 8 PM 12/20 | 12.12 | -999 |
| 9 PM 12/20 | 11.96 | -999 |
| 10 PM 12/20 | 11.77 | -999 |
| 11 PM 12/20 | 11.58 | -999 |
| 12 AM 12/21 | 11.41 | -999 |
| 1 AM 12/21 | 11.28 | -999 |
| 2 AM 12/21 | 11.24 | -999 |
| 3 AM 12/21 | 11.3 | -999 |
| 4 AM 12/21 | 11.38 | -999 |
| 5 AM 12/21 | 11.49 | -999 |
| 6 AM 12/21 | 11.6 | -999 |
| 7 AM 12/21 | 11.65 | -999 |
| 8 AM 12/21 | 11.66 | -999 |
| 9 AM 12/21 | 11.64 | -999 |
| 10 AM 12/21 | 11.58 | -999 |
| 11 AM 12/21 | 11.51 | -999 |
| 12 PM 12/21 | 11.43 | -999 |
| 1 PM 12/21 | 11.38 | -999 |
| 2 PM 12/21 | 11.4 | -999 |
| 3 PM 12/21 | 11.53 | -999 |
| 4 PM 12/21 | 11.7 | -999 |
| 5 PM 12/21 | 11.78 | -999 |
| 6 PM 12/21 | 11.76 | -999 |
| 7 PM 12/21 | 11.72 | -999 |
| 8 PM 12/21 | 11.64 | -999 |
| 9 PM 12/21 | 11.51 | -999 |
| 10 PM 12/21 | 11.37 | -999 |
| 11 PM 12/21 | 11.2 | -999 |
| 12 AM 12/22 | 11.02 | -999 |
| 1 AM 12/22 | 10.85 | -999 |
| 2 AM 12/22 | 10.74 | -999 |
| 3 AM 12/22 | 10.69 | -999 |
| 4 AM 12/22 | 10.69 | -999 |
| 5 AM 12/22 | 10.79 | -999 |
| 6 AM 12/22 | 10.93 | -999 |
| 7 AM 12/22 | 10.99 | -999 |
| 8 AM 12/22 | 10.99 | -999 |
| 9 AM 12/22 | 10.96 | -999 |
| 10 AM 12/22 | 10.91 | -999 |
| 11 AM 12/22 | 10.82 | -999 |
| 12 PM 12/22 | 10.71 | -999 |
| 1 PM 12/22 | 10.6 | -999 |
| 2 PM 12/22 | 10.55 | -999 |
| 3 PM 12/22 | 10.6 | -999 |
| 4 PM 12/22 | 10.78 | -999 |
| 5 PM 12/22 | 10.93 | -999 |
| 6 PM 12/22 | 10.95 | -999 |
| 7 PM 12/22 | 10.9 | -999 |
| 8 PM 12/22 | 10.81 | -999 |
| 9 PM 12/22 | 10.69 | -999 |
| 10 PM 12/22 | 10.55 | -999 |
| 11 PM 12/22 | 10.39 | -999 |
| 12 AM 12/23 | 10.22 | -999 |
| 1 AM 12/23 | 10.05 | -999 |
| 2 AM 12/23 | 9.88 | -999 |
| 3 AM 12/23 | 9.75 | -999 |
| 4 AM 12/23 | 9.7 | -999 |
| 5 AM 12/23 | 9.78 | -999 |
| 6 AM 12/23 | 9.95 | -999 |
| 7 AM 12/23 | 10.06 | -999 |
| 8 AM 12/23 | 10.08 | -999 |
| 9 AM 12/23 | 10.06 | -999 |
| 10 AM 12/23 | 9.99 | -999 |
| 11 AM 12/23 | 9.88 | -999 |
| 12 PM 12/23 | 9.74 | -999 |
| 1 PM 12/23 | 9.6 | -999 |
| 2 PM 12/23 | 9.49 | -999 |
| 3 PM 12/23 | 9.48 | -999 |
| 4 PM 12/23 | 9.63 | -999 |
| 5 PM 12/23 | 9.85 | -999 |
| 6 PM 12/23 | 9.95 | -999 |
| 7 PM 12/23 | 9.94 | -999 |
| 8 PM 12/23 | 9.91 | -999 |
| 9 PM 12/23 | 9.82 | -999 |
| 10 PM 12/23 | 9.68 | -999 |
| 11 PM 12/23 | 9.5 | -999 |
| 12 AM 12/24 | 9.31 | -999 |
| 1 AM 12/24 | 9.12 | -999 |
| 2 AM 12/24 | 8.93 | -999 |
| 3 AM 12/24 | 8.75 | -999 |
| 4 AM 12/24 | 8.64 | -999 |
| 5 AM 12/24 | 8.66 | -999 |
| 6 AM 12/24 | 8.83 | -999 |
| 7 AM 12/24 | 8.98 | -999 |
| 8 AM 12/24 | 9.02 | -999 |
| 9 AM 12/24 | 9.01 | -999 |
| 10 AM 12/24 | 8.98 | -999 |
| 11 AM 12/24 | 8.92 | -999 |
| 12 PM 12/24 | 8.82 | -999 |
| 1 PM 12/24 | 8.7 | -999 |
| 2 PM 12/24 | 8.6 | -999 |
| 3 PM 12/24 | 8.55 | -999 |
| 4 PM 12/24 | 8.65 | -999 |
| 5 PM 12/24 | 8.85 | -999 |
| 6 PM 12/24 | 9.04 | -999 |
| 7 PM 12/24 | 9.1 | -999 |
| 8 PM 12/24 | 9.08 | -999 |
| 9 PM 12/24 | 9.03 | -999 |
| 10 PM 12/24 | 8.93 | -999 |
| 11 PM 12/24 | 8.78 | -999 |
| 12 AM 12/25 | 8.6 | -999 |
| 1 AM 12/25 | 8.4 | -999 |
| 2 AM 12/25 | 8.21 | -999 |
| 3 AM 12/25 | 8.04 | -999 |
| 4 AM 12/25 | 7.93 | -999 |
| 5 AM 12/25 | 7.93 | -999 |
| 6 AM 12/25 | 8.11 | -999 |
| 7 AM 12/25 | 8.34 | -999 |
| 8 AM 12/25 | 8.53 | -999 |
| 9 AM 12/25 | 8.58 | -999 |
| 10 AM 12/25 | 8.59 | -999 |
| 11 AM 12/25 | 8.57 | -999 |
| 12 PM 12/25 | 8.49 | -999 |
| 1 PM 12/25 | 8.37 | -999 |
| 2 PM 12/25 | 8.24 | -999 |
| 3 PM 12/25 | 8.11 | -999 |
| 4 PM 12/25 | 8.04 | -999 |
| 5 PM 12/25 | 8.09 | -999 |
| 6 PM 12/25 | 8.28 | -999 |
| 7 PM 12/25 | 8.48 | -999 |
| 8 PM 12/25 | 8.52 | -999 |
| 9 PM 12/25 | 8.46 | -999 |
| 10 PM 12/25 | 8.39 | -999 |
| 11 PM 12/25 | 8.29 | -999 |
| 12 AM 12/26 | 8.14 | -999 |
| 1 AM 12/26 | 7.96 | -999 |
| 2 AM 12/26 | 7.77 | -999 |
| 3 AM 12/26 | 7.59 | -999 |
| 4 AM 12/26 | 7.42 | -999 |
| Time | Stage (ft) | Flow (kcfs) |
|---|---|---|
| 3:42 PM 12/16 | 7.17 | -999 |
| 3:36 PM 12/16 | 7.18 | -999 |
| 3:18 PM 12/16 | 7.24 | -999 |
| 3:12 PM 12/16 | 7.27 | -999 |
| 3:06 PM 12/16 | 7.28 | -999 |
| 2:48 PM 12/16 | 7.32 | -999 |
| 2:42 PM 12/16 | 7.34 | -999 |
| 2:36 PM 12/16 | 7.35 | -999 |
| 2:18 PM 12/16 | 7.38 | -999 |
| 2:12 PM 12/16 | 7.4 | -999 |
| 2:06 PM 12/16 | 7.4 | -999 |
| 1:48 PM 12/16 | 7.42 | -999 |
| 1:42 PM 12/16 | 7.42 | -999 |
| 1:36 PM 12/16 | 7.42 | -999 |
| 1:24 PM 12/16 | 7.4 | -999 |
| 1:18 PM 12/16 | 7.39 | -999 |
| 1:12 PM 12/16 | 7.37 | -999 |
| 1:06 PM 12/16 | 7.35 | -999 |
| 12:54 PM 12/16 | 7.3 | -999 |
| 12:48 PM 12/16 | 7.28 | -999 |
| 12:42 PM 12/16 | 7.24 | -999 |
| 12:36 PM 12/16 | 7.2 | -999 |
| 12:24 PM 12/16 | 7.14 | -999 |
| 12:18 PM 12/16 | 7.09 | -999 |
| 12:12 PM 12/16 | 7.03 | -999 |
| 12:06 PM 12/16 | 6.99 | -999 |
| 11:54 AM 12/16 | 6.83 | -999 |
| 11:48 AM 12/16 | 6.77 | -999 |
| 11:42 AM 12/16 | 6.7 | -999 |
| 11:36 AM 12/16 | -9999 | -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.
