Skykomish River near Gold Bar

1. 22.00 ftthe Skykomish River will cause severe...near record flooding from Index downstream to Monroe. The river will flood many homes...cover much of the farmland...close most roads and overtop most dikes. Flooding will occur all along the river including headwaters...tributaries...and other streams within and near the Skykomish River Basin. A stage of 22 feet on the Skykomish River corresponds to a Phase 4 in the Snohomish County flood program.
2. 21.00 ftthe Skykomish River will cause major flooding from near Index downstream through Sultan to the Snoqualmie River confluence. Deep and swift flood waters will inundate roads...residential areas...and farm land. Extensive bank erosion is likely. Flooding will occur all along the river including headwaters...tributaries...and other streams within and near the Skykomish River Basin. A stage of 21 feet on the Skykomish River corresponds to a Phase 4 in the Snohomish County flood program.
3. 19.00 ftthe Skykomish River will cause major flooding from near Index downstream through Sultan to the Snoqualmie. Flood waters will inundate portions of downtown Sultan...most roads and the Tualco Valley area near Monroe. Flooding will occur all along the river including headwaters...tributaries...and other streams within and near the Skykomish River Basin. A stage of 19 feet on the Skykomish River corresponds to a Phase 4 in the Snohomish County flood program.
4. 17.00 ftthe Skykomish River will cause flooding from near Index downstream through Sultan to the Snoqualmie. Flood waters will cover numerous roads...including Ben Howard Rd...Index-Galena Rd and Tualco Loop Rd. Flooding in the town of Sultan will begin. A stage of 17 feet on the Skykomish River corresponds to a Phase 3 in the Snohomish County flood program.
5. 16.00 ftthe Skykomish River will cause minor flooding of low pasture lands and some roads along the river...including Ben Howard road...Index-Galena Rd and Tualco Loop Rd. A stage of 16 feet on the Skykomish River corresponds to a Phase 3 in the Snohomish County flood program.
6. 15.00 ftthe Skykomish River will cause minor flooding of low pasture lands and low lying roads...including Index-Galena Rd and Tualco Loop Rd. A stage of 15 feet on the Skykomish River corresponds to a Phase 2 in the Snohomish County flood program.

Chance of flooding, September to November

The three-month chances are the River Forecast Centers’ long-range flood outlook, issued September 21, 2026.

Most recent crests

• December 17, 2025: 18.05 ft
• December 16, 2025: 15.19 ft
• December 11, 2025: 24.03 ft
• December 9, 2025: 20.32 ft
• December 5, 2023: 17.86 ft
• November 5, 2022: 17.41 ft
• March 1, 2022: 15.99 ft
• January 12, 2022: 15.03 ft
• November 15, 2021: 17.94 ft
• November 13, 2021: 16.77 ft

• UpstreamSouth Fork Skykomish River at Skykomish
• DownstreamSnohomish River at Monroe
• NF Skykomish River
• South Fork Sultan River at Sultan
• Sultan River at Sultan
• South Fork Tolt at S Fk Tolt Reservoir
• NF Skykomish R
• Tolt River at Carnation
• North Fork Snoqualmie River at Snoqualmie Falls

Forecasts by the Northwest River Forecast Center. Forecasts are issued routinely year-round. River forecasts for this location take into account past and future precipitation. The stages/flows that will occur may be different if future rainfall is different than forecast.

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.