River Conditions
Illustrated map of Cowlitz River at Randle

River stage

Monroe, Snohomish River

River level
0.47 ft
Status
Below flood stage
7-day change
+0.15 ft
Recent high
2.56 ft
Recent low
-0.15 ft

Last reported 2026-10-13 | NWS MROW1

30-day change
-0.03 ft
Average
0.50 ft
Readings
122
Data span
122 days
Record crest
25.30 ft

In brief

The Snohomish River at Monroe, WA read 0.47 ft on Oct 13, 2026, 9.53 ft below action stage. That is 0.03 ft lower than 30 days earlier.

Source: National Weather Service gauge MROW1

River level timeline

-0.30.41.11.92.6SEP 13SEP 18SEP 23SEP 28OCT 03OCT 08OCT 13HIGH 2.27LOW 0.020.49 ftLAST READING

Stage threshold profile

Action stage 10.00 ftMinor flooding 15.00 ftModerate flooding 16.00 ftMajor flooding 17.00 ft CURRENT 0.47 ft

Highest crests on record

RankCrestDate
1 25.30 ft 1990-11-25
2 24.55 ft 2025-12-12
3 24.12 ft 2009-01-08
4 24.10 ft 1995-11-30
5 23.54 ft 2006-11-07
6 22.92 ft 1975-12-04
7 21.65 ft 1990-11-10
8 21.53 ft 1996-02-09

Flood crests recorded at this gauge by the National Weather Service.

What happens at each level

  1. 14.00 ft

    feet...the Snohomish River will locally spill over its banks into low pasture lands along the river.

  2. 15.00 ft

    the Snohomish River will cause minor flooding of low pasture lands and several roads near the river. A stage of 15 feet at this location corresponds to Phase 2 in the Snohomish County Flood Warning System.

  3. 16.00 ft

    the Snohomish River will flood several roads and much of the low pasture land in the river valley. A stage of 16 feet at this location corresponds to Phase 2 in the Snohomish County Flood Warning System.

  4. 17.00 ft

    the Snohomish River will cause major flooding...inundating farm land...roads...and some residential areas. Levees will likely suffer damage. Flooding will occur all along the river including headwaters...tributaries...and other streams within and near the Snohomish River Basin. A stage of 17 feet at this location corresponds to Phase 2 in the Snohomish County Flood Warning System.

  5. 20.00 ft

    the Snohomish River will cause severe flooding in the valley. The river will flood many homes...cover much of the farmlands...and close many roads. Flooding will occur all along the river including headwaters...tributaries...and other streams within and near the Snohomish River Basin. A stage of 20 feet at this location corresponds to Phase 3 in the Snohomish County Flood Warning System.

  6. 21.00 ft

    Flooding will occur all along the river including headwaters...tributaries...and other streams within and near the Snohomish River Basin. The Snohomish River stage at this location corresponds to Phase 4 in the Snohomish County Flood Warning System.

  7. 22.00 ft

    the Snohomish River will cause severe flooding...with deep and swift flood waters inundating farm land...residential areas...and roads. Levees could suffer overtopping and major damage. Flooding will occur all along the river including headwaters...tributaries...and other streams within and near the Snohomish River Basin. A stage of 22 feet at this location corresponds to Phase 4 in the Snohomish County Flood Warning System.

Written by the local National Weather Service forecast office for this exact gauge.

Trout stocking on the Snohomish River

WDFW stocked the Snohomish River 1 time in 2026, 90 fish in total. Coho at Fry.

SpeciesFish SizeWhen
Coho 90 Fry April 2026

WDFW lists a week or a month rather than a date, and counts fish as an estimate. Full Washington stocking schedule →

Frequently asked questions

Is the Snohomish River flooding at Monroe?

No. The Snohomish River at Monroe is at 0.47 ft, 9.53 ft below action stage.

What is the flood stage at Monroe?

The National Weather Service sets action stage 10 ft, minor flooding 15 ft, moderate flooding 16 ft and major flooding 17 ft.

What is the highest the Snohomish River has been at Monroe?

The highest crest on record is 25.3 ft, on 1990-11-25.

Is the Snohomish River high or low right now at Monroe?

At 0.47 ft it is higher than 61% of readings over the last 122 days.

Stage and flood information from the NOAA National Weather Service (gauge MROW1); daily history from the U.S. Geological Survey (site 12150800). Last reading 2026-10-13. For flood safety decisions always follow official National Weather Service warnings.