Pilchuck River near Snohomish, WA
River level and flood forecast · King County
The river is 8.0 ft below flood stage (18 ft).
Forecast to hold near 10.0 ft through Mon, Oct 19, 5 PM.
Flow: 60 cubic feet per second (USGS).
The last 7 days and the forecast
NWS forecast issued Mon, Oct 12, 8:24 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 Pilchuck River near Snohomish to flood, when it floods, and when it's over.
Flood stages
| Major flood stage | 22 ft |
| Moderate flood stage | 20 ft |
| Flood stage | 18 ft |
| Action stage | 16 ft |
| Record crest (January 8, 2009) | 20.39 ft |
What floods at each level
From the National Weather Service, highest first.
- 22 ftthe Pilchuck River will cause record major flooding and will likely overtop levees. Flood waters will inundate residences and roads along the river from Menzel Lake Rd. upstream of Granite Falls down through the Lake Stevens area and Snohomish. This includes areas around Sexton Rd. and Orchard Ave in Snohomish...and 28th Place NE near Lake Stevens.
- 20 ftthe Pilchuck River will cause flooding of residences and roads along the river from menzel Lake Rd. upstream of Granite Falls down through the Lake Stevens area and Snohomish. This includes areas around Sexton Rd. and Orchard Ave in Snohomish...and 28th Place NE near Lake Stevens.
- 18 ftthe Pilchuck River spills out of its banks...flooding residences and roads in low lying areas along the river from Granite Falls downstream through the Lake Stevens area and Snohomish. This includes areas around Sexton Rd. and Orchard Ave in Snohomish.
Highest crests on record
- 20.39 ft — January 8, 2009
- 19.5 ft — January 5, 2015
- 19.2 ft — February 22, 2012
- 19.16 ft — December 16, 1999
- 19.14 ft — November 6, 2006
Recent crests: 17.67 ft (December 11, 2025) · 17.78 ft (October 22, 2019) · 19.5 ft (January 5, 2015) · 16.85 ft (December 23, 2013) · 16.62 ft (January 9, 2013)
Up and down the river, and nearby
- DownstreamSnohomish River at Snohomish, WA
- Snohomish River near Monroe, WA
- Sultan River near Sultan, WA
- South Fork Stillaguamish River near Granite Falls, WA
- Snoqualmie River near Carnation - Discharge, WA
- Skykomish River near Gold Bar, WA
- Tolt River near Carnation, WA
- South Fork Sultan River near Sultan, WA
Not an official source. River levels, forecasts, flood stages and impacts are from the National Weather Service (PILW1); flow from the U.S. Geological Survey. Readings are provisional. In a flood, follow your local officials and the NWS at weather.gov.