Total streamflow across the
Wynoochee River
was last observed at
1,148
cfs, and is expected to yield approximately
2,277
acre-ft of water today; about 85%
of normal.
Average streamflow for this time of year is
1,347 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 513 cfs.
This is also the highest stage along the Wynoochee River, with a gauge stage of
27.75 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 | 2025-04-30 |
Discharge Volume | 2,277 ACRE-FT |
Streamflow |
1,148.0 cfs
-16.0 cfs (-1.37%) |
Percent of Normal | 85.24% |
Maximum |
21,710.0 cfs
2020-01-24 |
Seasonal Avg | 1,347 cfs |
The Wynoochee River is a 60-mile (97 km) long river located in the Olympic Peninsula in the U.S. state of Washington. A tributary of the Chehalis River, the Wynoochee River rises in the Olympic Mountains within the Olympic National Park and flows generally south. Its drainage basin is 218 square miles (560 km2) in area. The name Wynoochee comes from the Lower Chehalis placename /xʷənúɬč/, meaning "shifting".