Grande Ronde River near Perry

1. 8.60 ftSevere flooding in the north part of La Grande downstream to Imbler and Elgin.
2. 7.90 ftMajor flooding at Hilgard Junction along Interstate 84. Flooding through the north part of La Grande and from Island City downstream to Imbler and Elgin.
3. 7.20 ftFlooding begins in some businessess and homes in Island City. There will be minor flooding of residential property north of La Grande. There will be extensive lowland flooding from Island City to Imbler.
4. 6.60 ftMinor flooding of pasture and grain fields from Island City downstream through Imbler to Elgin, especially along Highway 237, the Cove Highway.
5. 5.80 ftAt this level, there will be some isolated field flooding from Island City downstream to Imbler and Elgin.

Chance of flooding, October to December

The three-month chances are the River Forecast Centers’ long-range flood outlook, issued September 30, 2026.

Most recent crests

• May 21, 2020: 8.34 ft
• February 7, 2020: 8.54 ft
• April 9, 2019: 7.70 ft
• March 10, 2014: 7.41 ft
• May 16, 2011: 7.70 ft
• March 27, 1999: 5.01 ft
• May 26, 1998: 5.06 ft
• February 7, 1997: 7.08 ft

• UpstreamGrande Ronde River at Clear Creek near Starkey
• DownstreamGrande Ronde River at Troy
• Meadow Creek at Dark Canyon
• Meadow Creek at Bear Creek
• Catherine Creek at Union
• Meacham Creek at Gibbon
• Catherine Creek at Union
• North Powder at North Powder
• Umatilla River at Gibbon

Forecasts by the Northwest River Forecast Center. Forecasts are issued routinely year-round.

Stage, flood stages, impacts and crest history from NOAA’s National Water Prediction Service. Streamflow and the daily record from the U.S. Geological Survey.