Nf Stillaguamish River near Arlington, WA

Snohomish County, Washington · USGS gauge 12167000 · NWS ARGW1 · Nf Stillaguamish River flood status · Washington river levels

Nearby: river levels near Oso

Is Nf Stillaguamish River near Arlington, WA flooding right now?

Nf Stillaguamish River near Arlington, WA measured 1.40 ft on 2026-09-11 01:15:00 UTC. That observation was 11.6 ft below its 13 ft flood stage. This is the latest available reading, not a guarantee of current conditions.

Gauge height
1.40 ft
as of 52 min ago
Streamflow
187 cfs
data refreshed 4 min ago

Minor flooding here begins at 13 ft, with major flooding at 15 ft. The highest crest on record was 15.59 ft on Sun, Dec 12, 2010.

Flood forecast

NWS forecast, issued 10 hours ago. Forecasts are issued for select river points and update through the day.

Flood stages at this gauge

CategoryStageCurrent distance
Action10.7 ft9.3 ft below
Minor flood13 ft11.6 ft below
Moderate flood14 ft12.6 ft below
Major flood15 ft13.6 ft below

New to these numbers? What does flood stage mean? · How to read a river gauge · Why is the river rising?

Highest crests on record

StageDate
15.59 ft2010-12-12
15.21 ft2023-12-05
15.21 ft2023-12-05
15.2 ft1990-11-24
15.12 ft2009-01-08

Nearby gauges

GaugeDistanceCounty
Pilchuck River near Bryant, WA5.4 miSnohomish County
Nf Stillaguamish River at Whitehorse Trail near Oso, WA6.4 miSnohomish County
Nf Stillaguamish River near Oso, WA7.4 miSnohomish County
North Fork Stillaguamish River at Rowan, WA9.1 miSnohomish County
Nf Stillaguamish River at C-Post Bridge near Oso, WA10.1 miSnohomish County
Provisional data: Real-time readings are provisional and subject to revision by the USGS — sensors can be affected by ice, debris, or equipment malfunction. Do not rely on this site for decisions involving personal safety; follow official guidance from the National Weather Service and local authorities.

Sources: USGS monitoring location · NWS gauge & forecast