Wynoochee River

Streamflow Hydrology Weather


Wynoochee River Levels

June 22 2024

2,055 ACRE-FT

Discharge Volume Today
-11.0 cfs (-1.05%) since yesterday
100.84% of Normal 3 Streamgauges

Total streamflow across the Wynoochee River was last observed at 1,036 cfs, and is expected to yield approximately 2,055 acre-ft of water today; about 101% of normal. Average streamflow for this time of year is 1,027 cfs, with recent peaks last observed on 2020-01-24 when daily discharge volume was observed at 21,710 cfs.

Maximum discharge along the river is currently at the Wynoochee River Above Black Creek Nr Montesano reporting a streamflow rate of 443 cfs. This is also the highest stage along the Wynoochee River, with a gauge stage of 27.6 ft at this location. This river is monitored from 3 different streamgauging stations along the Wynoochee River, the highest being situated at an altitude of 632 ft, the Wynoochee River Near Grisdale.

Last Updated 2024-06-22
Streamflow 1,036.0 cfs
Percent of Normal 100.84%
Maximum 21,710.0 cfs
2020-01-24

About the wynoochee river


The Wynoochee River is a 42-mile-long river in western Washington, United States. It originates in the Olympic Mountains and flows northwest into Wynoochee Lake, which is created by the Wynoochee Dam. The river then continues west and eventually flows into the Chehalis River near Aberdeen. The Wynoochee River is primarily used for hydroelectric power generation, with the Wynoochee Dam being the main source of power. The reservoir created by the dam is also used for recreational activities such as fishing, camping, and boating. The river has a rich history, with the Wynoochee Dam being built in the 1970s to provide power to the growing population of western Washington. The river also supports various agricultural activities along its banks. Despite the dam's benefits, it has had negative impacts on the river's ecosystem, including a decline in fish populations.

Streamgauge Streamflow Gauge Stage 24hr Change (%) % Normal Minimum (cfs) Maximum (cfs) Air Temp Elevation
Wynoochee River Near Grisdale
USGS 12035400
232 cfs 1.31 ft 0
Wynoochee River Above Save Creek Near Aberdeen
USGS 12036000
361 cfs 5 ft 0
Wynoochee River Above Black Creek Nr Montesano
USGS 12037400
443 cfs 27.6 ft -2.42

Peak Annual Discharge

Wynoochee River Maximum Total Discharge

Seasonal Comparison

Wynoochee River Year Over Year Discharge


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