Datums for 9437954, North Fork


NOTICE: All data values are relative to the MLLW.

Elevations on Mean Lower Low Water

Station: 9437954, North Fork
Status: Accepted (Jan 22 2024)
Units: Feet
Control Station: 9437540 Garibaldi, OR
T.M.: 0
Epoch: 1983-2001
Datum: MLLW
DatumValueDescription
MHHW8.37Mean Higher-High Water
MHW7.68Mean High Water
MTL4.42Mean Tide Level
MSL4.37Mean Sea Level
DTL4.19Mean Diurnal Tide Level
MLW1.15Mean Low Water
MLLW0.00Mean Lower-Low Water
NAVD88
STND-20.80Station Datum
GT8.37Great Diurnal Range
MN6.53Mean Range of Tide
DHQ0.70Mean Diurnal High Water Inequality
DLQ1.15Mean Diurnal Low Water Inequality
HWI8.63Greenwich High Water Interval (in hours)
LWI2.81Greenwich Low Water Interval (in hours)
Max TideHighest Observed Tide
Max Tide Date & Time Highest Observed Tide Date & Time
Min TideLowest Observed Tide
Min Tide Date & Time Lowest Observed Tide Date & Time
HAT10.52Highest Astronomical Tide
HAT Date & Time12/05/2025 20:24HAT Date and Time
LAT-2.60Lowest Astronomical Tide
LAT Date & Time12/06/2025 03:42LAT Date and Time
Tidal Datum Analysis Periods
07/01/2017 - 09/30/2017




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