Siletz River at Siletz
Critical Stages
12' - Action
16' - Flood
20' - Moderate
25' - Major
Latest Observation
Updated: 1:30 AM PST 12/17/25
Status: No Flooding
Stage: 7.51 ft
Flow: 4.23 kcfs
Forecast
| Time | Stage (ft) | Flow (kcfs) |
|---|---|---|
| 4 AM 12/17 | 7.39 | 4.08 |
| 10 AM 12/17 | 7.56 | 4.29 |
| 4 PM 12/17 | 7.52 | 4.24 |
| 10 PM 12/17 | 7.31 | 3.98 |
| 4 AM 12/18 | 7.14 | 3.77 |
| 10 AM 12/18 | 7.59 | 4.33 |
| 4 PM 12/18 | 10.56 | 8.6 |
| 10 PM 12/18 | 17.41 | 22 |
| 4 AM 12/19 | 14.47 | 15.7 |
| 10 AM 12/19 | 11.62 | 10.4 |
| 4 PM 12/19 | 10.39 | 8.33 |
| 10 PM 12/19 | 9.8 | 7.42 |
| 4 AM 12/20 | 9.34 | 6.74 |
| 10 AM 12/20 | 8.94 | 6.16 |
| 4 PM 12/20 | 8.59 | 5.67 |
| 10 PM 12/20 | 8.28 | 5.24 |
| 4 AM 12/21 | 7.98 | 4.84 |
| 10 AM 12/21 | 7.76 | 4.55 |
| 4 PM 12/21 | 7.62 | 4.37 |
| 10 PM 12/21 | 7.57 | 4.3 |
| 4 AM 12/22 | 7.58 | 4.32 |
| 10 AM 12/22 | 7.58 | 4.32 |
| 4 PM 12/22 | 7.55 | 4.28 |
| 10 PM 12/22 | 7.48 | 4.19 |
| 4 AM 12/23 | 7.38 | 4.06 |
| 10 AM 12/23 | 7.27 | 3.93 |
| 4 PM 12/23 | 7.14 | 3.77 |
| 10 PM 12/23 | 7 | 3.6 |
| 4 AM 12/24 | 6.86 | 3.43 |
| 10 AM 12/24 | 6.79 | 3.35 |
| 4 PM 12/24 | 6.79 | 3.35 |
| 10 PM 12/24 | 6.76 | 3.32 |
| 4 AM 12/25 | 6.7 | 3.25 |
| 10 AM 12/25 | 6.64 | 3.18 |
| 4 PM 12/25 | 6.6 | 3.14 |
| 10 PM 12/25 | 6.59 | 3.12 |
| 4 AM 12/26 | 6.58 | 3.11 |
| Time | Stage (ft) | Flow (kcfs) |
|---|---|---|
| 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 |
| 12:00 AM 12/17 | 7.26 | 3.92 |
| 11:45 PM 12/16 | 7.23 | 3.88 |
| 11:30 PM 12/16 | 7.21 | 3.85 |
| 11:15 PM 12/16 | 7.19 | 3.83 |
| 11:00 PM 12/16 | 7.18 | 3.82 |
| 10:45 PM 12/16 | 7.16 | 3.79 |
| 10:30 PM 12/16 | 7.15 | 3.78 |
| 10:15 PM 12/16 | 7.14 | 3.77 |
| 10:00 PM 12/16 | 7.13 | 3.76 |
| 9:45 PM 12/16 | 7.13 | 3.76 |
| 9:30 PM 12/16 | 7.13 | 3.76 |
| 9:15 PM 12/16 | 7.13 | 3.76 |
| 9:00 PM 12/16 | 7.13 | 3.76 |
| 8:45 PM 12/16 | 7.14 | 3.77 |
| 8:30 PM 12/16 | 7.15 | 3.78 |
| 8:15 PM 12/16 | 7.15 | 3.78 |
| 8:00 PM 12/16 | 7.15 | 3.78 |
| 7:45 PM 12/16 | 7.16 | 3.79 |
| 7:30 PM 12/16 | 7.16 | 3.79 |
| 7:15 PM 12/16 | 7.17 | 3.81 |
| 7:00 PM 12/16 | 7.18 | 3.82 |
| 6:45 PM 12/16 | 7.18 | 3.82 |
| 6:30 PM 12/16 | 7.19 | 3.83 |
| 6:15 PM 12/16 | 7.19 | 3.83 |
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.
