« Back to Milton-freewater Rivers
Grande Ronde River at Troy
Critical Stages
8' - Action
10' - Flood
11' - Moderate
12' - Major
Latest Observation
Updated: 5:00 AM PST 12/16/25
Status: No Flooding
Stage: 4.44 ft
Flow: 2.18 kcfs
Forecast
| Time | Stage (ft) | Flow (kcfs) |
|---|---|---|
| 10 AM 12/16 | 4.97 | 3.06 |
| 4 PM 12/16 | 4.94 | 3 |
| 10 PM 12/16 | 4.84 | 2.83 |
| 4 AM 12/17 | 4.88 | 2.9 |
| 10 AM 12/17 | 5.14 | 3.37 |
| 4 PM 12/17 | 5.42 | 3.92 |
| 10 PM 12/17 | 5.52 | 4.13 |
| 4 AM 12/18 | 5.43 | 3.94 |
| 10 AM 12/18 | 5.25 | 3.58 |
| 4 PM 12/18 | 5.14 | 3.37 |
| 10 PM 12/18 | 5.26 | 3.6 |
| 4 AM 12/19 | 5.62 | 4.34 |
| 10 AM 12/19 | 6.08 | 5.39 |
| 4 PM 12/19 | 6.48 | 6.4 |
| 10 PM 12/19 | 6.7 | 7 |
| 4 AM 12/20 | 6.71 | 7.03 |
| 10 AM 12/20 | 6.53 | 6.54 |
| 4 PM 12/20 | 6.23 | 5.76 |
| 10 PM 12/20 | 5.92 | 5.01 |
| 4 AM 12/21 | 5.63 | 4.36 |
| 10 AM 12/21 | 5.4 | 3.88 |
| 4 PM 12/21 | 5.22 | 3.52 |
| 10 PM 12/21 | 5.09 | 3.28 |
| 4 AM 12/22 | 5 | 3.11 |
| 10 AM 12/22 | 4.95 | 3.02 |
| 4 PM 12/22 | 4.93 | 2.99 |
| 10 PM 12/22 | 4.94 | 3 |
| 4 AM 12/23 | 4.96 | 3.04 |
| 10 AM 12/23 | 4.99 | 3.09 |
| 4 PM 12/23 | 5.01 | 3.13 |
| 10 PM 12/23 | 5.03 | 3.17 |
| 4 AM 12/24 | 5.05 | 3.2 |
| 10 AM 12/24 | 5.07 | 3.24 |
| 4 PM 12/24 | 5.07 | 3.24 |
| 10 PM 12/24 | 5.05 | 3.2 |
| 4 AM 12/25 | 5.01 | 3.13 |
| Time | Stage (ft) | Flow (kcfs) |
|---|---|---|
| 5:00 AM 12/16 | 4.44 | 2.18 |
| 4:45 AM 12/16 | 4.44 | 2.18 |
| 4:30 AM 12/16 | 4.43 | 2.17 |
| 4:15 AM 12/16 | 4.44 | 2.18 |
| 4:00 AM 12/16 | 4.44 | 2.18 |
| 3:45 AM 12/16 | 4.45 | 2.2 |
| 3:30 AM 12/16 | 4.38 | 2.09 |
| 3:15 AM 12/16 | 4.43 | 2.17 |
| 3:00 AM 12/16 | 4.43 | 2.17 |
| 2:45 AM 12/16 | 4.4 | 2.12 |
| 2:30 AM 12/16 | 4.42 | 2.15 |
| 2:15 AM 12/16 | 4.42 | 2.15 |
| 2:00 AM 12/16 | 4.4 | 2.12 |
| 1:45 AM 12/16 | 4.41 | 2.14 |
| 1:30 AM 12/16 | 4.41 | 2.14 |
| 1:15 AM 12/16 | 4.39 | 2.11 |
| 1:00 AM 12/16 | 4.41 | 2.14 |
| 12:45 AM 12/16 | 4.4 | 2.12 |
| 12:30 AM 12/16 | 4.4 | 2.12 |
| 12:15 AM 12/16 | 4.38 | 2.09 |
| 12:00 AM 12/16 | 4.41 | 2.14 |
| 11:45 PM 12/15 | 4.4 | 2.12 |
| 11:30 PM 12/15 | 4.38 | 2.09 |
| 11:15 PM 12/15 | 4.4 | 2.12 |
| 11:00 PM 12/15 | 4.36 | 2.06 |
| 10:45 PM 12/15 | 4.38 | 2.09 |
| 10:30 PM 12/15 | 4.4 | 2.12 |
| 10:15 PM 12/15 | 4.35 | 2.05 |
| 10:00 PM 12/15 | 4.39 | 2.11 |
| 9:45 PM 12/15 | 4.41 | 2.14 |
16' -
Flooding along the left bank into the town of Troy.
11' -
Extensive flooding of fields around Troy are possible, but no residences are threatened.
10' -
Minor flooding of fields adjacent to the river from Elgin through Troy and downstream to the confluence of the Snake River.
9' -
Minor flooding in lowland fields from Elgin downstream through Troy and through southeast Washington to the Snake River.
| Date | Stage (ft) |
|---|---|
| Feb 9, 1996 | 13.76 |
| Jan 1, 1997 | 12.65 |
| Mar 10, 2014 | 11.85 |
| Feb 7, 2020 | 11.73 |
| Mar 19, 0017 | 11.7 |
| Dec 23, 1964 | 11.25 |
| Jun 5, 2010 | 10.83 |
| Apr 14, 2002 | 10.44 |
| Dec 22, 1955 | 10.43 |
| Feb 2, 1995 | 10.36 |
| Jan 29, 1965 | 10.34 |
| Jan 17, 2011 | 10.3 |
| Dec 15, 1946 | 10.2 |
| Feb 23, 1986 | 9.93 |
| May 27, 1948 | 9.6 |
| May 26, 1998 | 9.51 |
| Feb 21, 1982 | 9.3 |
| May 19, 1991 | 9.1 |
| Jan 17, 1974 | 9 |
| Mar 18, 1972 | 8.48 |
Data provided by the National Weather Service.
