Location.--Latitude 47°41'38", Longitude
121°41'16", in NW 1/4 SW 1/4 Section 32, Township 26 North,
Range 9 East, in King County, Hydrologic Unit 17110010, on
top of dam and near center of the dam, 11.4 miles northeast of
Carnation, and at river mile
area is 18.8 mi2. Datum of
gage is NGVD of 1929, Seattle Water Department benchmark.
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.
Lake elevation varies from
1,710 feet (minimum normal elevation) to 1,765 feet (maximum normal
elevation), with top of dam at 1,775 feet.
This station managed by the Northwest Washington Field Office (Ferndale).