Datums for 8767816, Lake Charles LA


NOTICE: All data values are relative to the MLLW.

Elevations on Mean Lower Low Water

Station: 8767816, Lake Charles, LA
Status: Accepted (Jul 23 2020)
Units: Feet
Control Station: 8770570 Sabine Pass North, TX
T.M.: 0
Epoch: 1983-2001
Datum: MLLW
DatumValueDescription
MHHW1.40Mean Higher-High Water
MHW1.30Mean High Water
MTL0.78Mean Tide Level
MSL0.78Mean Sea Level
DTL0.70Mean Diurnal Tide Level
MLW0.25Mean Low Water
MLLW0.00Mean Lower-Low Water
NAVD880.67North American Vertical Datum of 1988
STND-26.39Station Datum
GT1.40Great Diurnal Range
MN1.05Mean Range of Tide
DHQ0.10Mean Diurnal High Water Inequality
DLQ0.25Mean Diurnal Low Water Inequality
HWIGreenwich High Water Interval (in hours)
LWIGreenwich Low Water Interval (in hours)
Max Tide6.04Highest Observed Tide
Max Tide Date & Time08/27/2020 10:54Highest Observed Tide Date & Time
Min Tide-2.93Lowest Observed Tide
Min Tide Date & Time01/02/2008 14:36Lowest Observed Tide Date & Time
HAT1.78Highest Astronomical Tide
HAT Date & Time05/24/1986 15:36HAT Date and Time
LAT-0.94Lowest Astronomical Tide
LAT Date & Time01/18/1988 19:24LAT Date and Time
Tidal Datum Analysis Periods
03/01/2007 - 02/29/2008
02/01/2009 - 01/31/2010
03/01/2010 - 02/28/2019




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