Snohomish River at Near Monroe

WA · USGS gauge 12150800

Discharge

1,780

CFS

7-day range

1,780–1,970

CFS

Catalog range

3,000–25,000

CFS · reference

Flood stage

40,000

CFS · catalog

Last 7 days

7-day low 1,780 CFS high 1,970 CFS

Source: USGS National Water Information System, gauge 12150800

Reading Jul 26, 6:15 AM PDT

Catalog range and flood stage: Baseline Maps river catalog (reference data, updated with the app). USGS data is provisional and subject to revision.

Drainage

Reach data

  • Gauge location: 47.8309, -122.0485
  • Gauge data cadence: ~15-minute readings (USGS)

FAQ

What USGS gauge measures the Snohomish River at Near Monroe?
USGS gauge 12150800. It reports discharge in cubic feet per second (CFS), typically updating every 15 minutes, published by the USGS National Water Information System.
What do the fishable-range numbers on this page mean?
They are reference figures from the Baseline Maps river catalog — a compiled low/high discharge range and flood stage for this reach. They are catalog data, not a recommendation; conditions, regulations, and safety are always the angler's own call.

Track this gauge with flow alerts.

Baseline Maps watches USGS gauge 12150800 for you — set a CFS range for the Snohomish River and get a push notification when the river enters it. Free for 14 days.

Baseline Maps flow alert setup — choosing a CFS range with the current reading shown