Grande Ronde River at Troy, OR
River level and flood forecast · Wallowa County
The river is 6.1 ft below flood stage (10 ft).
Forecast to hold near 3.9 ft through Mon, Oct 19, 5 PM.
Flow: 598 cubic feet per second (USGS).
The last 7 days and the forecast
NWS forecast issued Mon, Oct 12, 8:12 AM. Forecasts change as rain falls and as upstream water arrives.
Get flood alerts for this river
An email when the National Weather Service forecasts Grande Ronde River at Troy to flood, when it floods, and when it's over.
Flood stages
| Major flood stage | 12 ft |
| Moderate flood stage | 11 ft |
| Flood stage | 10 ft |
| Action stage | 8 ft |
| Record crest (February 9, 1996) | 13.76 ft |
What floods at each level
From the National Weather Service, highest first.
- 16 ftFlooding along the left bank into the town of Troy.
- 11 ftExtensive flooding of fields around Troy are possible, but no residences are threatened.
- 10 ftMinor flooding of fields adjacent to the river from Elgin through Troy and downstream to the confluence of the Snake River.
- 9 ftMinor flooding in lowland fields from Elgin downstream through Troy and through southeast Washington to the Snake River.
Highest crests on record
- 13.76 ft — February 9, 1996
- 12.65 ft — January 1, 1997
- 11.85 ft — March 10, 2014
- 11.73 ft — February 7, 2020
- 11.7 ft — March 19, 17
Recent crests: 11.73 ft (February 7, 2020) · 11.85 ft (March 10, 2014) · 10.3 ft (January 17, 2011) · 10.83 ft (June 5, 2010) · 10.44 ft (April 14, 2002)
Up and down the river, and nearby
Not an official source. River levels, forecasts, flood stages and impacts are from the National Weather Service (TRYO3); flow from the U.S. Geological Survey. Readings are provisional. In a flood, follow your local officials and the NWS at weather.gov.