Datums for 8773259, Port Lavaca TX


NOTICE: All data values are relative to the MLLW.

Elevations on Mean Lower Low Water

Station: 8773259, Port Lavaca, TX
Status: Accepted (Nov 23 2020)
Units: Feet
Control Station: 8773701 Port O'Connor, TX
T.M.: 0
Epoch: 2002-2006
Datum: MLLW
DatumValueDescription
MHHW0.90Mean Higher-High Water
MHW0.87Mean High Water
MTL0.46Mean Tide Level
MSL0.49Mean Sea Level
DTL0.45Mean Diurnal Tide Level
MLW0.06Mean Low Water
MLLW0.00Mean Lower-Low Water
NAVD88
STND-3.00Station Datum
GT0.90Great Diurnal Range
MN0.81Mean Range of Tide
DHQ0.03Mean Diurnal High Water Inequality
DLQ0.06Mean Diurnal Low Water Inequality
HWIGreenwich High Water Interval (in hours)
LWIGreenwich Low Water Interval (in hours)
Max Tide7.66Highest Observed Tide
Max Tide Date & Time08/26/2017 09:00Highest Observed Tide Date & Time
Min Tide-1.92Lowest Observed Tide
Min Tide Date & Time01/12/2018 18:06Lowest Observed Tide Date & Time
HAT1.27Highest Astronomical Tide
HAT Date & Time06/13/1987 21:18HAT Date and Time
LAT-0.50Lowest Astronomical Tide
LAT Date & Time07/01/1988 09:06LAT Date and Time
Tidal Datum Analysis Periods
08/01/2015 - 07/31/2016
02/01/2017 - 01/31/2019




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