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Datums for 9449880, Friday Harbor WA


NOTICE: All data values are relative to the MLLW.

Elevations on Mean Lower Low Water

Station: 9449880, Friday Harbor, WA
Status: Accepted (Apr 17 2003)
Units: Feet
Control Station:
T.M.: 0
Epoch: 1983-2001
Datum: MLLW
DatumValueDescription
MHHW7.76Mean Higher-High Water
MHW7.11Mean High Water
MTL4.70Mean Tide Level
MSL4.55Mean Sea Level
DTL3.88Mean Diurnal Tide Level
MLW2.29Mean Low Water
MLLW0.00Mean Lower-Low Water
NAVD88
STND-3.85Station Datum
GT7.76Great Diurnal Range
MN4.82Mean Range of Tide
DHQ0.65Mean Diurnal High Water Inequality
DLQ2.29Mean Diurnal Low Water Inequality
HWI0.46Greenwich High Water Interval (in hours)
LWI6.51Greenwich Low Water Interval (in hours)
Max Tide11.15Highest Observed Tide
Max Tide Date & Time12/16/1982 07:00Highest Observed Tide Date & Time
Min Tide-4.15Lowest Observed Tide
Min Tide Date & Time01/07/1947 22:54Lowest Observed Tide Date & Time
HAT9.72Highest Astronomical Tide
HAT Date & Time12/14/1985 16:12HAT Date and Time
LAT-3.67Lowest Astronomical Tide
LAT Date & Time06/22/1986 18:30LAT Date and Time
Tidal Datum Analysis Periods
01/01/1983 - 12/31/2001




Products available at 9449880 Friday Harbor, WA

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