Siletz River at Siletz
Critical Stages
12' - Action
16' - Flood
20' - Moderate
25' - Major
Latest Observation
Updated: 3:30 AM PST 12/5/25
Status: No Flooding
Stage: 4.36 ft
Flow: 1.08 kcfs
Forecast
| Time | Stage (ft) | Flow (kcfs) |
|---|---|---|
| 10 AM 12/5 | 5.58 | 2.09 |
| 4 PM 12/5 | 6.51 | 3.04 |
| 10 PM 12/5 | 6.76 | 3.32 |
| 4 AM 12/6 | 6.57 | 3.1 |
| 10 AM 12/6 | 6.31 | 2.82 |
| 4 PM 12/6 | 6.14 | 2.64 |
| 10 PM 12/6 | 6.03 | 2.53 |
| 4 AM 12/7 | 5.89 | 2.39 |
| 10 AM 12/7 | 5.89 | 2.39 |
| 4 PM 12/7 | 6.09 | 2.59 |
| 10 PM 12/7 | 6.3 | 2.81 |
| 4 AM 12/8 | 6.34 | 2.85 |
| 10 AM 12/8 | 6.33 | 2.84 |
| 4 PM 12/8 | 6.56 | 3.09 |
| 10 PM 12/8 | 7.17 | 3.81 |
| 4 AM 12/9 | 8.36 | 5.35 |
| 10 AM 12/9 | 9.98 | 7.69 |
| 4 PM 12/9 | 10.58 | 8.63 |
| 10 PM 12/9 | 9.91 | 7.59 |
| 4 AM 12/10 | 9.5 | 6.97 |
| 10 AM 12/10 | 9.32 | 6.71 |
| 4 PM 12/10 | 9.23 | 6.58 |
| 10 PM 12/10 | 9.16 | 6.48 |
| 4 AM 12/11 | 9.03 | 6.29 |
| 10 AM 12/11 | 8.82 | 5.99 |
| 4 PM 12/11 | 8.6 | 5.68 |
| 10 PM 12/11 | 8.39 | 5.39 |
| 4 AM 12/12 | 8.2 | 5.13 |
| 10 AM 12/12 | 8.07 | 4.96 |
| 4 PM 12/12 | 7.99 | 4.85 |
| 10 PM 12/12 | 7.99 | 4.85 |
| 4 AM 12/13 | 8 | 4.87 |
| 10 AM 12/13 | 7.88 | 4.71 |
| 4 PM 12/13 | 7.72 | 4.5 |
| 10 PM 12/13 | 7.58 | 4.32 |
| 4 AM 12/14 | 7.49 | 4.2 |
| Time | Stage (ft) | Flow (kcfs) |
|---|---|---|
| 3:30 AM 12/5 | 4.36 | 1.08 |
| 3:15 AM 12/5 | 4.36 | 1.08 |
| 3:00 AM 12/5 | 4.36 | 1.08 |
| 2:45 AM 12/5 | 4.35 | 1.07 |
| 2:30 AM 12/5 | 4.35 | 1.07 |
| 2:15 AM 12/5 | 4.35 | 1.07 |
| 2:00 AM 12/5 | 4.35 | 1.07 |
| 1:45 AM 12/5 | 4.34 | 1.06 |
| 1:30 AM 12/5 | 4.34 | 1.06 |
| 1:15 AM 12/5 | 4.34 | 1.06 |
| 1:00 AM 12/5 | 4.33 | 1.06 |
| 12:45 AM 12/5 | 4.33 | 1.06 |
| 12:30 AM 12/5 | 4.33 | 1.06 |
| 12:15 AM 12/5 | 4.33 | 1.06 |
| 12:00 AM 12/5 | 4.33 | 1.06 |
| 11:45 PM 12/4 | 4.32 | 1.05 |
| 11:30 PM 12/4 | 4.32 | 1.05 |
| 11:15 PM 12/4 | 4.32 | 1.05 |
| 11:00 PM 12/4 | 4.31 | 1.04 |
| 10:45 PM 12/4 | 4.31 | 1.04 |
| 10:30 PM 12/4 | 4.31 | 1.04 |
| 10:15 PM 12/4 | 4.3 | 1.04 |
| 10:00 PM 12/4 | 4.3 | 1.04 |
| 9:45 PM 12/4 | 4.3 | 1.04 |
| 9:30 PM 12/4 | 4.29 | 1.03 |
| 9:15 PM 12/4 | 4.29 | 1.03 |
| 9:00 PM 12/4 | 4.29 | 1.03 |
| 8:45 PM 12/4 | 4.29 | 1.03 |
| 8:30 PM 12/4 | 4.29 | 1.03 |
| 8:15 PM 12/4 | 4.29 | 1.03 |
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.
