South Yamhill River at McMinnville

1. 58.00 ftexpect flooding of some buildings and structures in the south portions of McMinnville, along with widespread farmland flooding and numerous flooded roads along the South Yamhill near McMinnville and downstream to the confluence with the Willamette River.
2. 56.00 ftexpect flooding of some structures in the south part of McMinnville. Historically, Numerous roads are flooded and closed at this level.
3. 54.00 ftnumerous secondary and minor access roads begin to flood. Road closures are possible at a few locations.
4. 52.00 ftexpect extensive lowland flooding from 10 miles south of McMinnville to the confluence of the Yamhill and Willamette Rivers.
5. 50.00 ftexpect lowland flooding at several locations along the river from McMinnville to the confluence with the Willamette River.

Chance of flooding, September to November

The three-month chances are the River Forecast Centers’ long-range flood outlook, issued September 27, 2026.

Most recent crests

• November 26, 2016: 51.84 ft
• December 10, 2015: 51.97 ft
• January 20, 2012: 53.97 ft
• January 3, 2009: 52.92 ft
• December 5, 2007: 55.90 ft
• January 12, 2006: 51.21 ft
• February 2, 2003: 42.79 ft
• November 27, 1999: 52.34 ft
• February 28, 1999: 50.53 ft
• February 25, 1999: 52.86 ft

• UpstreamSouth Yamhill River at Willamina
• Willamette River at Newberg
• North Fork Yamhill River at Fairdale
• Willamina Creek at Willamina
• Tualatin River at Gaston
• Wapato Creek
• Glenn Creek
• Scoggins Creek at Henry Hagg Lake
• Scoggins Creek at Scoggins Dam

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.