Datums for 8775792, Packery Channel TX


NOTICE: All data values are relative to the MLLW.

Elevations on Mean Lower Low Water

Station: 8775792, Packery Channel, TX
Status: Superseded (Apr 17 2003) (Accepted Feb 4 1994)
Units: Feet
Control Station:
T.M.: 0
Epoch: 1960-1978
Datum: MLLW
DatumValueDescription
MHHW0.39Mean Higher-High Water
MHW0.38Mean High Water
MTL0.19Mean Tide Level
MSL0.20Mean Sea Level
DTL0.19Mean Diurnal Tide Level
MLW0.00Mean Low Water
MLLW0.00Mean Lower-Low Water
NAVD88
STND-2.55Station Datum
GT0.39Great Diurnal Range
MN0.38Mean Range of Tide
DHQ0.01Mean Diurnal High Water Inequality
DLQ0.00Mean Diurnal Low Water Inequality
HWIGreenwich High Water Interval (in hours)
LWIGreenwich Low Water Interval (in hours)
Max Tide5.37Highest Observed Tide
Max Tide Date & Time08/26/2017 00:06Highest Observed Tide Date & Time
Min Tide-1.00Lowest Observed Tide
Min Tide Date & Time12/28/1989 14:36Lowest Observed Tide Date & Time
HAT1.10Highest Astronomical Tide
HAT Date & Time10/12/2025 12:00HAT Date and Time
LAT-0.60Lowest Astronomical Tide
LAT Date & Time01/21/2023 20:00LAT Date and Time
Tidal Datum Analysis Periods




Products available at 8775792 Packery Channel, TX