Datums for 9444090, Port Angeles WA


NOTICE: All data values are relative to the MLLW.

Elevations on Mean Lower Low Water

Station: 9444090, Port Angeles, WA
Status: Superseded (Apr 17 2003) (Accepted Jul 13 1998)
Units: Feet
Control Station: 9449880 Friday Harbor, WA
T.M.: 0
Epoch: 1960-1978
Datum: MLLW
DatumValueDescription
MHHW7.03Mean Higher-High Water
MHW6.46Mean High Water
MTL4.26Mean Tide Level
MSL4.25Mean Sea Level
DTL3.52Mean Diurnal Tide Level
MLW2.06Mean Low Water
MLLW0.00Mean Lower-Low Water
NAVD88
STND-30.20Station Datum
GT7.03Great Diurnal Range
MN4.40Mean Range of Tide
DHQ0.57Mean Diurnal High Water Inequality
DLQ2.06Mean Diurnal Low Water Inequality
HWI10.56Greenwich High Water Interval (in hours)
LWI4.44Greenwich Low Water Interval (in hours)
Max Tide10.63Highest Observed Tide
Max Tide Date & Time01/02/2003 19:54Highest Observed Tide Date & Time
Min Tide-4.45Lowest Observed Tide
Min Tide Date & Time05/06/2008 20:48Lowest Observed Tide Date & Time
HAT9.17Highest Astronomical Tide
HAT Date & Time12/23/2026 20:00HAT Date and Time
LAT-3.65Lowest Astronomical Tide
LAT Date & Time06/15/2026 16:48LAT Date and Time
Tidal Datum Analysis Periods
01/01/1979 - 12/31/1990




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