Rivers in Washington
Cowlitz River below Mayfield Dam
Below flood stage
2.36ftStage
Observed Mon, Sep 21, 9:00 PM PDT
- Forecast crest
- 2.36 ftMon, Sep 21, 11:00 PM PDT
- Record crest
- 26.19 ft1995
Flood stages and impacts
- 60000.0 ftthe Cowlitz River will cause severe near record flooding below Mayfield Dam downstream through Toledo. Deep and swift flood waters will inundate farmlands...roads...and some residential areas...especially near Toledo. Major damage due to erosion is likely. Flooding will occur all along the river including headwaters...tributaries...and other streams within and near the Cowlitz River Basin.
- 45000.0 ftthe Cowlitz River will cause major flooding from Mayfield Dam downstream through Toledo. Deep and swift flood waters will inundate farmlands...roads...and some residential areas...especially near Toledo. Some damage due to erosion is possible. Flooding will occur all along the river including headwaters...tributaries...and other streams within and near the Cowlitz River Basin.
- 35000.0 ftthe Cowlitz River will flood the reach from Mayfield Dam downstream through Toledo. Swift flood waters will inundate some farmlands and several roads...especially near Toledo.
- 25000.0 ftthe Cowlitz River will flood the reach from Mayfield Dam downstream through Toledo. Flood waters will inundate some farmlands and several roads...mainly near Toledo.
Crest history
80 crests on NOAA’s list since 1911.
| # | Date | Stage |
|---|---|---|
| 1 | November 28, 1995 | 26.19 ft |
| 2 | December 4, 1975 | 25.26 ft |
| 3 | December 13, 1946 | 24.75 ft |
| 4 | January 30, 1965 | 24.36 ft |
| 5 | November 24, 1959 | 23.71 ft |
| 6 | December 4, 1977 | 23.69 ft |
| 7 | February 11, 1951 | 22.50 ft |
| 8 | December 12, 1955 | 22.05 ft |
| 9 | November 21, 1962 | 21.83 ft |
| 10 | November 24, 1942 | 21.50 ft |
| 11 | December 23, 1950 | 21.33 ft |
| 12 | December 10, 1953 | 21.09 ft |
| 13 | January 7, 2009 | 20.59 ft |
| 14 | December 29, 1945 | 20.33 ft |
| 15 | November 6, 1934 | 20.10 ft |
| 16 | December 13, 1966 | 20.09 ft |
| 17 | December 30, 1937 | 19.91 ft |
| 18 | November 12, 1958 | 19.69 ft |
| 19 | December 22, 1955 | 19.65 ft |
| 20 | November 24, 1990 | 19.62 ft |
| 21 | November 28, 1949 | 19.52 ft |
| 22 | April 18, 1938 | 19.42 ft |
| 23 | November 9, 2006 | 19.34 ft |
| 24 | February 22, 1961 | 19.29 ft |
| 25 | March 19, 1972 | 19.27 ft |
Most recent crests
- December 13, 2025: 19.03 ft
- January 7, 2009: 20.59 ft
- November 9, 2006: 19.34 ft
- January 4, 1997: 17.83 ft
- November 28, 1995: 26.19 ft
- February 19, 1995: 18.31 ft
- November 24, 1990: 19.62 ft
- February 10, 1990: 17.78 ft
- November 24, 1986: 17.32 ft
- February 23, 1986: 17.82 ft
Nearby
Upstream, downstream and the gauges around this one.
- UpstreamCowlitz River at Randle
- DownstreamCowlitz River at Castle Rock
- South Fork Newaukum River at Onalaska
- Tilton River at Cinebar
- N Fk Toutle River at Sediment Retention Structure near Toutle
- North Fork Newaukum River at Forest
- Toutle River at Tower Road near Silver Lake
- Newaukum River at Chehalis
- Skookumchuck River
- Skookumchuck Reservoir at Skookumchuck Reservoir
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.