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Datums for 9441102, Westport WA


NOTICE: All data values are relative to the MLLW.

Elevations on Mean Lower Low Water

Station: 9441102, Westport, WA
Status: Accepted (Sep 22 2017)
Units: Feet
Control Station: 9440910 Toke Point, WA
T.M.: 120
Epoch: 1983-2001
Datum: MLLW
DatumValueDescription
MHHW9.14Mean Higher-High Water
MHW8.40Mean High Water
MTL4.90Mean Tide Level
MSL4.87Mean Sea Level
DTL4.57Mean Diurnal Tide Level
MLW1.39Mean Low Water
MLLW0.00Mean Lower-Low Water
NAVD88
STND-3.00Station Datum
GT9.14Great Diurnal Range
MN7.01Mean Range of Tide
DHQ0.74Mean Diurnal High Water Inequality
DLQ1.39Mean Diurnal Low Water Inequality
HWI8.55Greenwich High Water Interval (in hours)
LWI2.06Greenwich Low Water Interval (in hours)
Max Tide12.65Highest Observed Tide
Max Tide Date & Time11/24/2011 19:06Highest Observed Tide Date & Time
Min Tide-3.61Lowest Observed Tide
Min Tide Date & Time05/07/2008 15:36Lowest Observed Tide Date & Time
HAT11.34Highest Astronomical Tide
HAT Date & Time12/23/1999 20:36HAT Date and Time
LAT-2.78Lowest Astronomical Tide
LAT Date & Time07/02/2000 14:48LAT Date and Time
Tidal Datum Analysis Periods
01/01/2007 - 12/31/2009
10/01/2010 - 09/30/2014
06/01/2015 - 05/31/2017




Products available at 9441102 Westport, WA

Revised: 08/08/2018
NOAA / National Ocean Service
Web site owner: Center for Operational Oceanographic Products and Services