Rivers in Washington

South Fork Nooksack River near Saxon Bridge

Whatcom County, WashingtonNWS NSSW1USGS 12210000Seattle office

Below flood stage
0.19ftStage

Observed Wed, Sep 23, 8:00 AM PDT

Flood stage
8.00 ft
Forecast crest
0.68 ftWed, Sep 30, 11:00 PM PDT
Record crest
9.54 ft2021

Open the live map with the river flood outlook

Flood stages and impacts

CategoryStage
Major flood9.50 ft
Moderate flood8.50 ft
Minor flood8.00 ft
Action6.90 ft
  1. 9.50 ftthe Nooksack River floodwaters will be deep and swift...inundating farms, roads and residential areas including the town of Acme. Many roads will be impassable and severe erosion may affect river banks. Flooding will occur all along the river including headwaters...tributaries...and other streams within and near the South Fork Nooksack River Basin.
  2. 8.50 ftthe Nooksack River flooding will be widespread with swift water covering farm lands and many roads. Highway 9 north of Acme may be impassable. Erosion may affect some river banks.
  3. 8.00 ftthe Nooksack River floodwaters will inundate much of the low farm lands along the river...with water over some roadways...including potentially Highway 9 north of Acme.

Flood outlook

Chance of flooding, September to November

CategoryChance
Minor flooding20%
Moderate flooding16%
Major flooding10%

The three-month chances are the River Forecast Centers’ long-range flood outlook, issued September 22, 2026.

Crest history

23 crests on NOAA’s list since 2009.

#DateStage
1November 15, 20219.54 ft
2November 15, 20219.54 ft
3November 17, 20159.26 ft
4December 10, 20259.02 ft
5December 11, 20259.02 ft
6December 12, 20108.78 ft
7November 13, 20158.69 ft
8January 8, 20098.45 ft
9November 28, 20218.18 ft
10October 18, 20178.14 ft
11October 22, 20198.03 ft
12November 5, 20228.03 ft
13January 28, 20248.01 ft
14November 23, 20178.01 ft
15November 28, 20147.78 ft
16January 17, 20117.77 ft
17January 5, 20157.64 ft
18November 23, 20117.53 ft
19September 28, 20137.53 ft
20February 6, 20157.35 ft
21November 4, 20147.19 ft
22October 17, 20097.15 ft
23March 9, 20147.09 ft

Most recent crests

  • December 11, 2025: 9.02 ft
  • December 10, 2025: 9.02 ft
  • January 28, 2024: 8.01 ft
  • November 5, 2022: 8.03 ft
  • November 28, 2021: 8.18 ft
  • November 15, 2021: 9.54 ft
  • November 15, 2021: 9.54 ft
  • October 22, 2019: 8.03 ft
  • November 23, 2017: 8.01 ft
  • October 18, 2017: 8.14 ft

Nearby

Upstream, downstream and the gauges around this one.

What this means

Forecasts by the Northwest River Forecast Center. Forecasts are issued routinely year-round. River forecasts for this location take into account past and future precipitation. The stages/flows that will occur may be different if future rainfall is different than forecast.

Sources

Stage, flood stages, impacts and crest history from NOAA’s National Water Prediction Service. Streamflow and the daily record from the U.S. Geological Survey.