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Umatilla River at Pendleton
Critical Stages
11' - Action
12.3' - Flood
13.5' - Moderate
17' - Major
Latest Observation
Updated: 7:00 PM PST 12/16/25
Status: No Flooding
Stage: 5.28 ft
Flow: 0.303 kcfs
Forecast
| Time | Stage (ft) | Flow (kcfs) |
|---|---|---|
| 10 PM 12/16 | 5.24 | 0.285 |
| 4 AM 12/17 | 5.39 | 0.356 |
| 10 AM 12/17 | 5.6 | 0.473 |
| 4 PM 12/17 | 5.67 | 0.521 |
| 10 PM 12/17 | 5.63 | 0.493 |
| 4 AM 12/18 | 5.57 | 0.455 |
| 10 AM 12/18 | 5.59 | 0.467 |
| 4 PM 12/18 | 6.03 | 0.826 |
| 10 PM 12/18 | 6.65 | 1.43 |
| 4 AM 12/19 | 7.1 | 1.91 |
| 10 AM 12/19 | 7.54 | 2.38 |
| 4 PM 12/19 | 8.17 | 3.14 |
| 10 PM 12/19 | 7.98 | 2.91 |
| 4 AM 12/20 | 7.64 | 2.5 |
| 10 AM 12/20 | 7.26 | 2.07 |
| 4 PM 12/20 | 7.03 | 1.83 |
| 10 PM 12/20 | 6.67 | 1.45 |
| 4 AM 12/21 | 6.46 | 1.23 |
| 10 AM 12/21 | 6.28 | 1.06 |
| 4 PM 12/21 | 6.13 | 0.925 |
| 10 PM 12/21 | 6.1 | 0.898 |
| 4 AM 12/22 | 6.13 | 0.925 |
| 10 AM 12/22 | 6.17 | 0.959 |
| 4 PM 12/22 | 6.17 | 0.959 |
| 10 PM 12/22 | 6.16 | 0.951 |
| 4 AM 12/23 | 6.13 | 0.925 |
| 10 AM 12/23 | 6.08 | 0.877 |
| 4 PM 12/23 | 6.01 | 0.807 |
| 10 PM 12/23 | 5.94 | 0.741 |
| 4 AM 12/24 | 5.88 | 0.687 |
| 10 AM 12/24 | 5.83 | 0.645 |
| 4 PM 12/24 | 5.81 | 0.628 |
| 10 PM 12/24 | 5.89 | 0.696 |
| 4 AM 12/25 | 5.9 | 0.705 |
| 10 AM 12/25 | 5.89 | 0.696 |
| 4 PM 12/25 | 5.9 | 0.705 |
| 10 PM 12/25 | 5.91 | 0.714 |
| 4 AM 12/26 | 5.91 | 0.714 |
| Time | Stage (ft) | Flow (kcfs) |
|---|---|---|
| 7:00 PM 12/16 | 5.28 | 0.303 |
| 6:45 PM 12/16 | 5.3 | 0.312 |
| 6:30 PM 12/16 | 5.29 | 0.307 |
| 6:15 PM 12/16 | 5.3 | 0.312 |
| 6:00 PM 12/16 | 5.3 | 0.312 |
| 5:45 PM 12/16 | 5.3 | 0.312 |
| 5:30 PM 12/16 | 5.3 | 0.312 |
| 5:15 PM 12/16 | 5.31 | 0.317 |
| 5:00 PM 12/16 | 5.31 | 0.317 |
| 4:45 PM 12/16 | 5.31 | 0.317 |
| 4:30 PM 12/16 | 5.31 | 0.317 |
| 4:15 PM 12/16 | 5.29 | 0.307 |
| 4:00 PM 12/16 | 5.32 | 0.321 |
| 3:45 PM 12/16 | 5.31 | 0.317 |
| 3:30 PM 12/16 | 5.32 | 0.321 |
| 3:15 PM 12/16 | 5.31 | 0.317 |
| 3:00 PM 12/16 | 5.31 | 0.317 |
| 2:45 PM 12/16 | 5.3 | 0.312 |
| 2:30 PM 12/16 | 5.31 | 0.317 |
| 2:15 PM 12/16 | 5.3 | 0.312 |
| 2:00 PM 12/16 | 5.31 | 0.317 |
| 1:45 PM 12/16 | 5.31 | 0.317 |
| 1:30 PM 12/16 | 5.3 | 0.312 |
| 1:15 PM 12/16 | 5.31 | 0.317 |
| 1:00 PM 12/16 | 5.31 | 0.317 |
| 12:45 PM 12/16 | 5.32 | 0.321 |
| 12:30 PM 12/16 | 5.32 | 0.321 |
| 12:15 PM 12/16 | 5.3 | 0.312 |
| 12:00 PM 12/16 | 5.33 | 0.326 |
| 11:45 AM 12/16 | 5.31 | 0.317 |
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.
