Station Information

Station ID: 127
Latitude: 47.601667
Longitude: -122.338333
Coastline code: 823
Station code: 11
Time span of data: 1899 – 2023
Completeness (%): 100
Date of last update: 16 Jan 2024

Green Arrow: Current Station
Yellow Marker: Neighbouring RLR Station
Red Marker: Neighbouring Metric Station

Please note: In many cases, the station position in our database is accurate to only one minute. Thus, the tide gauge may not appear to be on the coast.

Additional Data Sources (guide to additional data sources)

Nearby GNSS Stations from SONEL: SEAT, SMAI, SSHO

Station Documentation

Link to RLR information.

Documentation added 1991-06-11

Seattle 823/011 RLR(1964) is 11.7m below BM7

Documentation added 2011-08-22

Using NOAA data the RLR diagram has been re-drawn. Primary benchmark is now 23 1954 8.851m above the gauge datum. The previously used benchmark NO 7 still exists original value was 9.010m above gauge datum. In the NOAA report of 11.6.1996 this value was 9.004m and in the latest NOAA report dated 21.4.2003 the value is 9.001m. The value for the new Primary benchmark 23 1954 is 8.851m in both reports.

Data Authority

N.O.A.A. / N.O.S.
N/oes33, Ssmc4, Room 6531
1305 East-West Highway
Silver Spring,
MD 20910