Datums for 8767911, East Calcasieu Lake

NOTICE: All data values are relative to the MLLW.

Elevations on Mean Lower Low Water

Station: 8767911, East Calcasieu Lake
Status: Accepted (Dec 29 2020)
Units: Feet
Control Station: 8770475 Port Arthur, TX
T.M.: 0
Epoch: 1983-2001
Datum: MLLW
MHHW1.21Mean Higher-High Water
MHW1.13Mean High Water
MTL0.67Mean Tide Level
MSL0.68Mean Sea Level
DTL0.61Mean Diurnal Tide Level
MLW0.21Mean Low Water
MLLW0.00Mean Lower-Low Water
NAVD880.88North American Vertical Datum of 1988
STND-27.76Station Datum
GT1.20Great Diurnal Range
MN0.92Mean Range of Tide
DHQ0.08Mean Diurnal High Water Inequality
DLQ0.20Mean Diurnal Low Water Inequality
HWIGreenwich High Water Interval (in hours)
LWIGreenwich 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
HAT1.67Highest Astronomical Tide
HAT Date & Time10/12/2025 08:00HAT Date and Time
LAT-1.09Lowest Astronomical Tide
LAT Date & Time01/21/2023 17:48LAT Date and Time
Tidal Datum Analysis Periods
12/01/2019 - 05/31/2020

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