Ketchikan, AK - Station ID: 9450460

Established:Oct 01, 1918
Time Meridian:135° W
Present Installation:Jun 20, 1990
Date Removed:N/A
Water Level Max (ref MHHW):5.86 ft. Dec 02, 1967
Water Level Min (ref MLLW):-5.27 ft. Dec 14, 2008
Mean Range:12.97 ft.
Diurnal Range:15.45 ft.
Latitude55° 19.9' N
Longitude131° 37.6' W
NOAA Chart#:17430
Met Site Elevation:15.1 ft. above MSL
Today's Tides (LST/LDT)
graphical depiction of low tide
12:21 PM
12:06 AMhigh 14.4 ft.
6:06 AMlow 1.6 ft.
12:21 PMhigh 15.8 ft.
6:33 PMlow 0.4 ft.

Sensor Information

SensorSensor IDDCP#Sensor HeightStatus
WindC1127.9 ft. above site Elevation Enabled
Air TemperatureD1125.9 ft. above site Elevation Enabled
Water TemperatureE1110.6 ft. below MLLW Enabled
Barometric PressureF1120.1 ft. above MSL Enabled
Tsunami WLU11N/A Enabled
Microwave WLY11N/A Enabled
For questions about disabled sensors, please contact CO-OPS User Services.


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How to reach: To reach the tidal bench marks from the Ketchikan, Alaska State Ferry Terminal, exit the parking area and turn right onto Tongass Avenue. Proceed SE for 3.2 km (2.0 mi) around the tunnel downtown and turn right onto Front Street and proceed 0.2 km (0.1 mi) then turn left onto Mill Street at the Federal Building and go 0.2 km (0.1 mi) to Stedman Street. Turn right onto Stedman and proceed 1.04 km (0.65 mi) to the Coast Guard Base, (mile 1/2 on South Tongass Highway). Proceed 0.2 km (0.1 mi) downhill to Machine Shop, turn right and follow counterclockwise 0.2 km (0.1 mi) on pier. The tide house is on the north side (landward) of the pier adjacent to warehouse. The bench marks were in the vicinity.

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