Cowlitz River Below Mayfield Dam, Wa Realtime Data
COWLITZ RIVER BELOW MAYFIELD DAM, WA
Realtime Data • Report • Conditions
2,300
Discharge (cfs)
9.8
Gauge Height (ft)
USGS 14238000
Streamflow discharge was last observed at 2,300 cfs, and a gauge height of 9.78 feet.
With the
% decrease since yesterday,
the streamflow average over the past 10 days is 2,297 .
Weather today, Tomorrow,
The primary flow providers are the Mayfield and Mossyrock Dams upstream, which generate hydroelectric power. The river also receives water from the Tilton and Cispus Rivers, two important tributaries. Seasonal trends show higher flow during the winter and spring months due to increased rain and snow melt. Interestingly, the river is a popular location for fishing and is home to several species of salmon and steelhead.
July 13, 2026
| Elevation | 231.0 ft |
| Last Updated | |
| Gage height, ft | 9.78 ft |
| Streamflow, ft³/s | 2300.0 ft3/s |
| Percent of Normal | 82% |
| Year Over Year Average | 2,820 cfs |
| 24hr Flow Prediction | cfs |
| Maximum Recorded | 29,100 cfs |
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