Siletz River at Siletz
Critical Stages
12' - Action
16' - Flood
20' - Moderate
25' - Major
Latest Observation
Updated: 7:30 PM PST 12/17/25
Status: No Flooding
Stage: 8.39 ft
Flow: 5.39 kcfs
Forecast
| Time | Stage (ft) | Flow (kcfs) |
|---|---|---|
| 10 PM 12/17 | 8.16 | 5.08 |
| 4 AM 12/18 | 7.98 | 4.84 |
| 10 AM 12/18 | 8.22 | 5.16 |
| 4 PM 12/18 | 14.94 | 16.6 |
| 10 PM 12/18 | 22.61 | 35.2 |
| 4 AM 12/19 | 17.66 | 22.6 |
| 10 AM 12/19 | 12.73 | 12.3 |
| 4 PM 12/19 | 10.58 | 8.63 |
| 10 PM 12/19 | 9.73 | 7.31 |
| 4 AM 12/20 | 9.25 | 6.61 |
| 10 AM 12/20 | 8.89 | 6.09 |
| 4 PM 12/20 | 8.57 | 5.64 |
| 10 PM 12/20 | 8.26 | 5.21 |
| 4 AM 12/21 | 7.99 | 4.85 |
| 10 AM 12/21 | 7.79 | 4.59 |
| 4 PM 12/21 | 7.68 | 4.44 |
| 10 PM 12/21 | 7.63 | 4.38 |
| 4 AM 12/22 | 7.62 | 4.37 |
| 10 AM 12/22 | 7.63 | 4.38 |
| 4 PM 12/22 | 7.63 | 4.38 |
| 10 PM 12/22 | 7.59 | 4.33 |
| 4 AM 12/23 | 7.47 | 4.18 |
| 10 AM 12/23 | 7.3 | 3.96 |
| 4 PM 12/23 | 7.13 | 3.76 |
| 10 PM 12/23 | 6.99 | 3.59 |
| 4 AM 12/24 | 6.85 | 3.42 |
| 10 AM 12/24 | 6.71 | 3.26 |
| 4 PM 12/24 | 6.61 | 3.15 |
| 10 PM 12/24 | 6.54 | 3.07 |
| 4 AM 12/25 | 6.47 | 2.99 |
| 10 AM 12/25 | 6.39 | 2.91 |
| 4 PM 12/25 | 6.33 | 2.84 |
| 10 PM 12/25 | 6.33 | 2.84 |
| 4 AM 12/26 | 6.31 | 2.82 |
| 10 AM 12/26 | 6.25 | 2.76 |
| 4 PM 12/26 | 6.18 | 2.68 |
| 10 PM 12/26 | 6.15 | 2.65 |
| 4 AM 12/27 | 6.13 | 2.63 |
| Time | Stage (ft) | Flow (kcfs) |
|---|---|---|
| 7:30 PM 12/17 | 8.39 | 5.39 |
| 7:15 PM 12/17 | 8.41 | 5.42 |
| 7:00 PM 12/17 | 8.42 | 5.43 |
| 6:45 PM 12/17 | 8.44 | 5.46 |
| 6:30 PM 12/17 | 8.46 | 5.49 |
| 6:15 PM 12/17 | 8.47 | 5.5 |
| 6:00 PM 12/17 | 8.48 | 5.51 |
| 5:45 PM 12/17 | 8.5 | 5.54 |
| 5:30 PM 12/17 | 8.52 | 5.57 |
| 5:15 PM 12/17 | 8.53 | 5.58 |
| 5:00 PM 12/17 | 8.54 | 5.6 |
| 4:45 PM 12/17 | 8.56 | 5.62 |
| 4:30 PM 12/17 | 8.58 | 5.65 |
| 4:15 PM 12/17 | 8.59 | 5.67 |
| 4:00 PM 12/17 | 8.61 | 5.69 |
| 3:45 PM 12/17 | 8.62 | 5.71 |
| 3:30 PM 12/17 | 8.64 | 5.74 |
| 3:15 PM 12/17 | 8.66 | 5.76 |
| 3:00 PM 12/17 | 8.67 | 5.78 |
| 2:45 PM 12/17 | 8.69 | 5.81 |
| 2:30 PM 12/17 | 8.71 | 5.83 |
| 2:15 PM 12/17 | 8.73 | 5.86 |
| 2:00 PM 12/17 | 8.74 | 5.88 |
| 1:45 PM 12/17 | 8.76 | 5.9 |
| 1:30 PM 12/17 | 8.79 | 5.95 |
| 1:15 PM 12/17 | 8.81 | 5.98 |
| 1:00 PM 12/17 | 8.82 | 5.99 |
| 12:45 PM 12/17 | 8.84 | 6.02 |
| 12:30 PM 12/17 | 8.87 | 6.06 |
| 12:15 PM 12/17 | 8.89 | 6.09 |
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.
