River Summary

Maximum discharge along the river was observed at the Cowlitz River At Castle Rock with a streamflow rate of 12,000 cfs. This is also the deepest point on the Cowlitz River, with a gauge stage of 35.89 ft. This river is monitored from 4 different streamgauging stations along the Cowlitz River, the highest being perched at an elevation of 1,053 ft, the Cowlitz River At Packwood .
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River Stats

Streamflow conditions and seasonal statistics
Location Streamflow River Stage Air Temp Elevation
Cowlitz River At Packwood
USGS 14226500
2980 cfs 2.81 ft
Cowlitz River At Randle
USGS 14231000
4840 cfs 8.28 ft
Cowlitz River Below Mayfield Dam
USGS 14238000
8150 cfs 13 ft
Cowlitz River At Castle Rock
USGS 14243000
12000 cfs 35.89 ft
Location 24hr Change (%) vs Average (%) Volatility (%) Minimum (cfs) Maximum (cfs)
Cowlitz River At Packwood
USGS 14226500
-11.31
Cowlitz River At Randle
USGS 14231000
-9.87
Cowlitz River Below Mayfield Dam
USGS 14238000
-15.1
Cowlitz River At Castle Rock
USGS 14243000
0.84


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