Umatilla River at Pendleton
Critical Stages
11' - Action
12.3' - Flood
13.5' - Moderate
17' - Major
Latest Observation
Updated: 6:00 PM PST 12/14/25
Status: No Flooding
Stage: 5.5 ft
Flow: 0.414 kcfs
Forecast
| Time | Stage (ft) | Flow (kcfs) |
|---|---|---|
| 10 PM 12/14 | 5.45 | 0.387 |
| 4 AM 12/15 | 5.41 | 0.366 |
| 10 AM 12/15 | 5.38 | 0.351 |
| 4 PM 12/15 | 5.4 | 0.361 |
| 10 PM 12/15 | 5.45 | 0.387 |
| 4 AM 12/16 | 5.48 | 0.403 |
| 10 AM 12/16 | 5.47 | 0.398 |
| 4 PM 12/16 | 5.49 | 0.409 |
| 10 PM 12/16 | 5.54 | 0.437 |
| 4 AM 12/17 | 5.7 | 0.543 |
| 10 AM 12/17 | 5.99 | 0.788 |
| 4 PM 12/17 | 6.03 | 0.826 |
| 10 PM 12/17 | 5.97 | 0.769 |
| 4 AM 12/18 | 5.92 | 0.723 |
| 10 AM 12/18 | 5.9 | 0.705 |
| 4 PM 12/18 | 6.07 | 0.867 |
| 10 PM 12/18 | 6.41 | 1.18 |
| 4 AM 12/19 | 6.69 | 1.47 |
| 10 AM 12/19 | 6.93 | 1.72 |
| 4 PM 12/19 | 7.13 | 1.94 |
| 10 PM 12/19 | 7.2 | 2.01 |
| 4 AM 12/20 | 7.01 | 1.8 |
| 10 AM 12/20 | 6.78 | 1.56 |
| 4 PM 12/20 | 6.57 | 1.35 |
| 10 PM 12/20 | 6.38 | 1.15 |
| 4 AM 12/21 | 6.2 | 0.986 |
| 10 AM 12/21 | 6.06 | 0.856 |
| 4 PM 12/21 | 5.96 | 0.759 |
| 10 PM 12/21 | 5.9 | 0.705 |
| 4 AM 12/22 | 5.9 | 0.705 |
| 10 AM 12/22 | 5.88 | 0.687 |
| 4 PM 12/22 | 5.95 | 0.75 |
| 10 PM 12/22 | 6.02 | 0.817 |
| 4 AM 12/23 | 6.04 | 0.836 |
| 10 AM 12/23 | 6.04 | 0.836 |
| 4 PM 12/23 | 6.1 | 0.898 |
| 10 PM 12/23 | 6.17 | 0.959 |
| 4 AM 12/24 | 6.14 | 0.933 |
| Time | Stage (ft) | Flow (kcfs) |
|---|---|---|
| 6:00 PM 12/14 | 5.5 | 0.414 |
| 5:45 PM 12/14 | 5.5 | 0.414 |
| 5:30 PM 12/14 | 5.5 | 0.414 |
| 5:15 PM 12/14 | 5.51 | 0.42 |
| 5:00 PM 12/14 | 5.49 | 0.409 |
| 4:45 PM 12/14 | 5.5 | 0.414 |
| 4:30 PM 12/14 | 5.48 | 0.403 |
| 4:15 PM 12/14 | 5.5 | 0.414 |
| 4:00 PM 12/14 | 5.5 | 0.414 |
| 3:45 PM 12/14 | 5.51 | 0.42 |
| 3:30 PM 12/14 | 5.51 | 0.42 |
| 3:15 PM 12/14 | 5.5 | 0.414 |
| 3:00 PM 12/14 | 5.5 | 0.414 |
| 2:45 PM 12/14 | 5.51 | 0.42 |
| 2:30 PM 12/14 | 5.52 | 0.426 |
| 2:15 PM 12/14 | 5.53 | 0.431 |
| 2:00 PM 12/14 | 5.52 | 0.426 |
| 1:45 PM 12/14 | 5.54 | 0.437 |
| 1:30 PM 12/14 | 5.53 | 0.431 |
| 1:15 PM 12/14 | 5.53 | 0.431 |
| 1:00 PM 12/14 | 5.53 | 0.431 |
| 12:45 PM 12/14 | 5.5 | 0.414 |
| 12:30 PM 12/14 | 5.54 | 0.437 |
| 12:15 PM 12/14 | 5.54 | 0.437 |
| 12:00 PM 12/14 | 5.55 | 0.443 |
| 11:45 AM 12/14 | 5.52 | 0.426 |
| 11:30 AM 12/14 | 5.54 | 0.437 |
| 11:15 AM 12/14 | 5.54 | 0.437 |
| 11:00 AM 12/14 | 5.53 | 0.431 |
| 10:45 AM 12/14 | 5.56 | 0.449 |
12.3' -
At this stage...minor flooding of lowland areas along the river from Riverside through Pendleton and to Reith can be expected.
| Date | Stage (ft) |
|---|---|
| Feb 6, 2020 | 19.2 |
| Apr 10, 2019 | 13.17 |
| Feb 9, 1996 | 11.08 |
| May 30, 1906 | 11 |
| Jan 17, 2011 | 10.31 |
| Jan 30, 1965 | 9.4 |
| Mar 3, 1972 | 9.15 |
| Dec 3, 1977 | 9.1 |
| Mar 10, 2014 | 9.07 |
| Feb 22, 1949 | 9.01 |
| Dec 13, 1977 | 8.7 |
| Dec 12, 1946 | 8.45 |
| Apr 20, 2013 | 8.43 |
| Dec 29, 1945 | 7.92 |
| Dec 7, 1973 | 7.5 |
| Apr 14, 2002 | 7.18 |
| Apr 21, 1958 | 5.84 |
| Feb 26, 1948 | 5.79 |
| Jan 19, 1953 | 5.41 |
| Apr 13, 1936 | 5.2 |
Data provided by the National Weather Service.
