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Siletz River at Siletz
Critical Stages
12' - Action
16' - Flood
20' - Moderate
25' - Major
Latest Observation
Updated: 7:30 AM PST 12/17/25
Status: No Flooding
Stage: 9.37 ft
Flow: 6.78 kcfs
Forecast
| Time | Stage (ft) | Flow (kcfs) |
|---|---|---|
| 10 AM 12/17 | 9.49 | 6.96 |
| 4 PM 12/17 | 8.76 | 5.9 |
| 10 PM 12/17 | 8.26 | 5.21 |
| 4 AM 12/18 | 7.93 | 4.77 |
| 10 AM 12/18 | 8.11 | 5.01 |
| 4 PM 12/18 | 12.29 | 11.5 |
| 10 PM 12/18 | 19.39 | 26.7 |
| 4 AM 12/19 | 15.65 | 18.1 |
| 10 AM 12/19 | 11.93 | 10.9 |
| 4 PM 12/19 | 10.35 | 8.27 |
| 10 PM 12/19 | 9.65 | 7.19 |
| 4 AM 12/20 | 9.2 | 6.54 |
| 10 AM 12/20 | 8.85 | 6.03 |
| 4 PM 12/20 | 8.54 | 5.6 |
| 10 PM 12/20 | 8.24 | 5.18 |
| 4 AM 12/21 | 7.98 | 4.84 |
| 10 AM 12/21 | 7.81 | 4.61 |
| 4 PM 12/21 | 7.8 | 4.6 |
| 10 PM 12/21 | 7.88 | 4.71 |
| 4 AM 12/22 | 8 | 4.87 |
| 10 AM 12/22 | 8.04 | 4.92 |
| 4 PM 12/22 | 7.93 | 4.77 |
| 10 PM 12/22 | 7.75 | 4.53 |
| 4 AM 12/23 | 7.54 | 4.27 |
| 10 AM 12/23 | 7.34 | 4.01 |
| 4 PM 12/23 | 7.17 | 3.81 |
| 10 PM 12/23 | 7.01 | 3.61 |
| 4 AM 12/24 | 6.87 | 3.44 |
| 10 AM 12/24 | 6.78 | 3.34 |
| 4 PM 12/24 | 6.71 | 3.26 |
| 10 PM 12/24 | 6.66 | 3.2 |
| 4 AM 12/25 | 6.6 | 3.14 |
| 10 AM 12/25 | 6.52 | 3.05 |
| 4 PM 12/25 | 6.48 | 3 |
| 10 PM 12/25 | 6.5 | 3.03 |
| 4 AM 12/26 | 6.53 | 3.06 |
| 10 AM 12/26 | 6.61 | 3.15 |
| 4 PM 12/26 | 6.84 | 3.41 |
| 10 PM 12/26 | 7.07 | 3.68 |
| 4 AM 12/27 | 7.14 | 3.77 |
| Time | Stage (ft) | Flow (kcfs) |
|---|---|---|
| 7:30 AM 12/17 | 9.37 | 6.78 |
| 7:15 AM 12/17 | 9.38 | 6.8 |
| 7:00 AM 12/17 | 9.39 | 6.81 |
| 6:45 AM 12/17 | 9.38 | 6.8 |
| 6:30 AM 12/17 | 9.36 | 6.77 |
| 6:15 AM 12/17 | 9.32 | 6.71 |
| 6:00 AM 12/17 | 9.26 | 6.62 |
| 5:45 AM 12/17 | 9.17 | 6.49 |
| 5:30 AM 12/17 | 9.06 | 6.34 |
| 5:15 AM 12/17 | 8.93 | 6.15 |
| 5:00 AM 12/17 | 8.81 | 5.98 |
| 4:45 AM 12/17 | 8.66 | 5.76 |
| 4:30 AM 12/17 | 8.52 | 5.57 |
| 4:15 AM 12/17 | 8.39 | 5.39 |
| 4:00 AM 12/17 | 8.28 | 5.24 |
| 3:45 AM 12/17 | 8.17 | 5.09 |
| 3:30 AM 12/17 | 8.07 | 4.96 |
| 3:15 AM 12/17 | 7.98 | 4.84 |
| 3:00 AM 12/17 | 7.9 | 4.73 |
| 2:45 AM 12/17 | 7.83 | 4.64 |
| 2:30 AM 12/17 | 7.76 | 4.55 |
| 2:15 AM 12/17 | 7.69 | 4.46 |
| 2:00 AM 12/17 | 7.61 | 4.35 |
| 1:45 AM 12/17 | 7.55 | 4.28 |
| 1:30 AM 12/17 | 7.51 | 4.23 |
| 1:15 AM 12/17 | 7.46 | 4.16 |
| 1:00 AM 12/17 | 7.42 | 4.11 |
| 12:45 AM 12/17 | 7.41 | 4.1 |
| 12:30 AM 12/17 | 7.32 | 3.99 |
| 12:15 AM 12/17 | 7.29 | 3.95 |
25' -
expect major flooding, with evacuations of residences and areas along the Siletz between mile post 2.5 and mile post 5 on State Highway 229 near Sunset Landing downstream to Coyote Rock. Stay tuned to local media sources and law enforcement information for details.
20' -
expect widespread flooding downstream. Increased flooding can be expected in the housing development downstream from Mack Landing. Numerous private roads and a trailor park between mile post 2.5 and mile post 5 near Sunset Landing to Coyote Rock are flooded. Flooding may be exacerbated during high tide.
18' -
expect minor flooding of a small housing development near mile post 8 down stream from Mack Landing. Widespread lowland and pasture land flooding also occurs at this level. Flooding may be exacerbated during high tide.
16' -
expect minor lowland flooding and minor flooding of some structures and roads along the Siletz River. Flooding may be exacerbated during high tide.
| Date | Stage (ft) |
|---|---|
| Nov 20, 1921 | 31.6 |
| Nov 26, 1999 | 28.62 |
| Jan 28, 1965 | 27.32 |
| Mar 31, 1931 | 26.71 |
| Jan 11, 1972 | 25.76 |
| Dec 22, 1964 | 25.74 |
| Feb 17, 1949 | 25.17 |
| Dec 28, 1998 | 24.72 |
| Dec 28, 1998 | 24.7 |
| Nov 22, 1909 | 24.6 |
| Dec 15, 1946 | 24.53 |
| Feb 7, 1996 | 24.49 |
| Dec 27, 1937 | 23.83 |
| Dec 6, 1933 | 23.8 |
| Nov 20, 1962 | 23.4 |
| Dec 25, 1980 | 22.95 |
| Nov 7, 2006 | 22.95 |
| Nov 25, 1927 | 22.6 |
| Jan 18, 1953 | 22.26 |
| Nov 24, 1960 | 22.12 |
Data provided by the National Weather Service.
