NOAA Web Site Link Tides and Currents Home Page Transparent placeholder image

Datums for 8772447, Freeport TX


NOTICE: All data values are relative to the MLLW.

Elevations on Mean Lower Low Water

Station: 8772447, Freeport, TX
Status: Accepted (Jun 9 2011)
Units: Feet
Control Station: 8771510 Galveston Pleasure Pier, TX
T.M.: 90
Epoch: 1983-2001
Datum: MLLW
DatumValueDescription
MHHW1.80Mean Higher-High Water
MHW1.64Mean High Water
MTL0.95Mean Tide Level
MSL0.97Mean Sea Level
DTL0.90Mean Diurnal Tide Level
MLW0.26Mean Low Water
MLLW0.00Mean Lower-Low Water
NAVD88
STND-27.65Station Datum
GT1.80Great Diurnal Range
MN1.39Mean Range of Tide
DHQ0.15Mean Diurnal High Water Inequality
DLQ0.26Mean Diurnal Low Water Inequality
HWIGreenwich High Water Interval (in hours)
LWIGreenwich Low Water Interval (in hours)
Max Tide7.38Highest Observed Tide
Max Tide Date & Time09/12/2008 18:42Highest Observed Tide Date & Time
Min Tide-2.72Lowest Observed Tide
Min Tide Date & Time03/22/2010 06:30Lowest Observed Tide Date & Time
HAT2.54Highest Astronomical Tide
HAT Date & Time10/18/1989 01:12HAT Date and Time
LAT-1.24Lowest Astronomical Tide
LAT Date & Time01/28/1987 13:42LAT Date and Time
Tidal Datum Analysis Periods
12/01/2006 - 11/30/2010




Products available at 8772447 Freeport, TX

Revised: 08/08/2018
NOAA / National Ocean Service
Web site owner: Center for Operational Oceanographic Products and Services