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Seattle, WA - Station ID: 9447130

Established:Jan 1 1899
Time Meridian:120° W
Present Installation:
Date Removed:N/A
Water Level Max (ref MHHW): 3.12 ft. (01/27/1983)
Water Level Min (ref MLLW): -5.04 ft. (01/04/1916)
Mean Range: 7.66 ft.
Diurnal Range: 11.36 ft.
Latitude47° 36.1' N
Longitude122° 20.3' W
NOAA Chart#:18450
Met Site Elevation:12.5 ft. above MSL
Today's Tides (LST/LDT)
graphical depiction of low tide
2:29 AM
2:29 AMlow1.7 ft.
8:41 AMhigh9.5 ft.
2:27 PMlow4.0 ft.
8:35 PMhigh10.7 ft.

Sensor Information

SensorSensor IDDCP#Sensor HeightStatus
Water LevelA11N/A Enabled
WindsC1151.8 ft. above site elevation Enabled
Air TempD1133.8 ft. above site elevation Enabled
Water TempE119.8 ft. below MLLW Enabled
Air PressureF1117.3 ft. above MSL Enabled
For questions about disabled sensors, please contact CO-OPS User Services.


How to reach: To reach the tidal bench marks from the Seattle Post Office at Third and Union Streets, proceed west on Union Street for one block, then right (south) on Second Avenue for three blocks, then right (west) on Madison Street for three blocks, then left (south) on Alaskan Way to just before the second traffic light (at the intersection of Columbia Street and Alaskan Way), then turn right (west) into the ferry terminal parking lot. The tidal bench marks are near the ferry terminal. The tide guage is located in the ferry terminal building in a storage room adjacent to and north of the Bremerton Ferry loading ramp.

Products available at 9447130 Seattle, WA

Revised: 10/15/2013
NOAA / National Ocean Service
Web site owner: Center for Operational Oceanographic Products and Services