Location Information 
Location.--Latitude 47°23'08", Longitude
123°36'16", in NE 1/4 NW 1/4 Section 20, Township 22 North,
Range 7 West, in Grays Harbor County, Hydrologic Unit 17100101,
Olympic National Forest, in monolith number 6, near center line axis of
Wynoochee Dam, 2.0 miles north of Grisdale, and at river
mile 51.8. Drainage
area is 41.0 mi2. Datum of
gage is NGVD of 1929 (levels by Corps of Engineers).
Maps.--Locate
this station on a
map of the basin (PDF).
Additional Data and Information.--
Project information.
Funding for this site is provided by the
cooperators / programs below:
Station Notes
Lake elevation varies from
below 690 feet (sluice invert) to 800 feet (full
pool).
Precipitation Disclaimer
The
15-minute precipitation data for this station are
temporary and will only be displayed for 120 days. Time
series of 15-minute or cumulative daily values will NOT be
available for retrieval following the 120-day display period.
Although the instrumentation is calibrated at least once/year, the
temporary classification means that documented routine inspections
and other quality assurance measures are not performed that would
make the data acceptable for archival, retrieval, or future use in
general scientific or interpretive studies.
This page is undergoing modernization and will be decommissioned on February 2025.
Daily data are now available in WDFN.
