Data



Data Notes



Extracted from Database

14 Oct 2019

PORT TOWNSEND

Station Information

Station ID: 1325
Latitude: 48.111667
Longitude: -122.756667
Coastline code: 823
Station code: 12
Country: UNITED STATES
Time span of data: 1972 – 2018
Completeness (%): 98
Date of last update: 05 Feb 2019

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.

Tide Gauge Data

Plot of monthly mean sea level data at PORT TOWNSEND.

Link to larger image of monthly data plot.
Download monthly mean sea level data.

Plot of annual mean sea level data at PORT TOWNSEND.

Link to larger image of annual data plot.
Download annual mean sea level data.

Download metric sea level data. Use only with extreme caution.
NOTE: If some of the data are red in the plots above, the 'flag for attention' is set. Please see the documentation below.

Additional Data Sources (guide to additional data sources)

Nearby GNSS Stations from SONEL: CHCM

Station Documentation

Link to RLR information.

Documentation added 1991-06-11

Port Townsend 823/012 RLR(1974) is 9.0m below BM9

Documentation added 2011-12-20

Using NOAA data the RLR diagram has been revised.Previous Primary benchmark BM 9 - NO 9 1952 still appears in the NOAA reports with a value of 4.541m in the 1988 report and 4.546m in the report of 2003. The value for benchmark NO 9 1952 on the original RLR diagram is 4.548m. Current Primary benchmark is TIDAL BM 18 1975 6.559m above gauge datum.

Data Authority

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