Search
Menu

Explore

Hazards

Analysis

Rankings

Reference

Pilchuck River near Snohomish

Highest listed crest 20.39 ftFlood stage 18.0 ft23 crests since 1993

The Pilchuck River near Snohomish crested above flood stage 6 times among the 23 crests the National Weather Service lists from 1993 to 2025. The highest, 20.39 ft on January 8, 2009, was moderate flooding, 2.39 feet above flood stage.

The gauge

Highest listed crest
20.39 ft
January 8, 2009; 13,900 cubic feet per second
Flood stage
18.0 ft
Major flooding from 22.0 ft
Crests at major
0
6 above flood stage
Most recent flood crest
January 5, 2015
19.50 ft, minor flooding
Location
Snohomish County
Near Snohomish (1.0 mi), Lake Stevens (4.9 mi), Everett (5.8 mi)

Flood stages

The thresholds the National Weather Service uses for this gauge today, and how many listed crests reached each.

Flood categories, Pilchuck River near Snohomish
Action stage16.017Dec 11, 2025The level at which the NWS or its partners begin to take action
Flood stage (minor)18.05Jan 5, 2015Minimal or no property damage, but possibly some public threat
Moderate flood stage20.01Jan 8, 2009Some inundation of structures and roads near the stream
Major flood stage22.00—Extensive inundation of structures and roads

Every listed crest

23 crests from 1993 to 2025. Filled: at or above flood stage. Hover a crest for its date and stage.

Listed crests at the Pilchuck River near Snohomish, 1993 to 2025 16182022ft Flood stage 18.0 ftMajor 22.0 ft Jan 25, 1993: 17.71 ft, action stageDec 20, 1994: 17.69 ft, action stage; 8,330 cubic feet per secondFeb 8, 1996: 18.18 ft, minor flooding; 9,240 cubic feet per secondOct 30, 1997: 16.19 ft, action stage; 5,810 cubic feet per secondDec 16, 1999: 19.16 ft, minor flooding; 11,200 cubic feet per secondOct 21, 2003: 16.73 ft, action stage; 5,260 cubic feet per secondNov 19, 2003: 16.51 ft, action stage; 5,080 cubic feet per secondNov 25, 2004: 16.80 ft, action stage; 6,780 cubic feet per secondDec 11, 2004: 16.03 ft, action stage; 4,610 cubic feet per secondNov 6, 2006: 19.14 ft, minor flooding; 7,170 cubic feet per secondMar 24, 2007: 16.92 ft, action stage; 5,360 cubic feet per secondDec 3, 2007: 16.78 ft, action stage; 5,180 cubic feet per secondNov 7, 2008: 17.90 ft, action stage; 6,150 cubic feet per secondJan 8, 2009: 20.39 ft, moderate flooding; 13,900 cubic feet per secondDec 12, 2010: 17.05 ft, action stage; 7,200 cubic feet per secondJan 21, 2011: 16.38 ft, action stage; 5,080 cubic feet per secondMar 31, 2011: 17.17 ft, action stage; 5,770 cubic feet per secondFeb 22, 2012: 19.20 ft, minor flooding; 8,500 cubic feet per secondJan 9, 2013: 16.62 ft, action stage; 5,260 cubic feet per secondDec 23, 2013: 16.85 ft, action stage; 5,450 cubic feet per secondJan 5, 2015: 19.50 ft, minor flooding; 9,050 cubic feet per secondOct 22, 2019: 17.78 ft, action stage; 6,070 cubic feet per secondDec 11, 2025: 17.67 ft, action stage; 6,410 cubic feet per second Highest, 20.39 ft, Jan 8, 2009 200020102020

Crests at or above flood stage, by decade

Crests at or above flood stage per decade, Pilchuck River near Snohomish 1990s: 2 2 2000s: 2 2010s: 2 2020s: 0 1990s2000s2010s2020s
  1. These are the crests the local National Weather Service office lists for the gauge: the highest on record and recent crests. Lesser floods between them may be missing, so counts by decade are a floor.
  2. Categories use today's flood stages. Levees, dams and channel changes since a crest can make old and new stages not directly comparable.

Highest crests

Highest listed crests, Pilchuck River near Snohomish
1Jan 8, 200920.39+2.39Moderate13,900
2Jan 5, 201519.50+1.50Minor9,050
3Feb 22, 201219.20+1.20Minor8,500
4Dec 16, 199919.16+1.16Minor11,200
5Nov 6, 200619.14+1.14Minor7,170
6Feb 8, 199618.18+0.18Minor9,240
7Nov 7, 200817.90−0.10Action6,150
8Oct 22, 201917.78−0.22Action6,070
9Jan 25, 199317.71−0.29Action—
10Dec 20, 199417.69−0.31Action8,330
11Dec 11, 202517.67−0.33Action6,410
12Mar 31, 201117.17−0.83Action5,770
13Dec 12, 201017.05−0.95Action7,200
14Mar 24, 200716.92−1.08Action5,360
15Dec 23, 201316.85−1.15Action5,450
16Nov 25, 200416.80−1.20Action6,780
17Dec 3, 200716.78−1.22Action5,180
18Oct 21, 200316.73−1.27Action5,260
19Jan 9, 201316.62−1.38Action5,260
20Nov 19, 200316.51−1.49Action5,080
21Jan 21, 201116.38−1.62Action5,080
22Oct 30, 199716.19−1.81Action5,810
23Dec 11, 200416.03−1.97Action4,610

Other gauges in Snohomish County

Flood gauges in Snohomish County
Arlington13.015.59 ft, Dec 12, 20105
Gold Bar15.024.51 ft, Nov 6, 200624
Snohomish25.034.15 ft, Dec 11, 202530
Monroe15.025.30 ft, Nov 25, 199030
Jordan Rd. Bridge211.0211.69 ft, Dec 9, 20250
Arlington14.021.34 ft, Dec 5, 202320

Snohomish County: every hazard · River floods across the country · Washington

NOAA National Water Prediction Service, gauge PILW1, retrieved October 30, 2026. Stages in feet on the gauge's own datum, not elevation. Crests are as the National Weather Service lists them; preliminary values may be revised.