Station Information

Station ID: 225
Latitude: 55.331667
Longitude: -131.625
Coastline code: 821
Station code: 51
Time span of data: 1919 – 2023
Completeness (%): 99
Date of last update: 10 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)

Fast Delivery Data from UHSLC station 571: hourly and daily
Research Quality Data from UHSLC station 571: hourly and daily

Station Documentation

Link to RLR information.

Documentation added 1991-06-11

Ketchikan 821/051 RLR(1964) is 10.2m below BM22

Documentation added 1992-04-02

South Alaskan coastline earthquake prone - e.g. magnitude 9.2 earthquake of 28 March 1964 - See Savage and Plafker, JGR, 96(B3), 4325-4335, 1991

Data Authority

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