Datums for 8728912, Port St. Joe FL


NOTICE: All data values are relative to the MLLW.

Elevations on Mean Lower Low Water

Station: 8728912, Port St. Joe, FL
Status: Superseded (Apr 17 2003) (Accepted Feb 4 1994)
Units: Feet
Control Station:
T.M.: 90
Epoch: 1960-1978
Datum: MLLW
DatumValueDescription
MHHW1.67Mean Higher-High Water
MHW1.37Mean High Water
MTL0.79Mean Tide Level
MSL0.82Mean Sea Level
DTL0.83Mean Diurnal Tide Level
MLW0.22Mean Low Water
MLLW0.00Mean Lower-Low Water
NAVD88
STND-2.83Station Datum
GT1.67Great Diurnal Range
MN1.15Mean Range of Tide
DHQ0.30Mean Diurnal High Water Inequality
DLQ0.22Mean Diurnal Low Water Inequality
HWIGreenwich High Water Interval (in hours)
LWIGreenwich Low Water Interval (in hours)
Max Tide2.69Highest Observed Tide
Max Tide Date & Time12/15/1981 02:42Highest Observed Tide Date & Time
Min Tide-2.22Lowest Observed Tide
Min Tide Date & Time01/18/1981 10:54Lowest Observed Tide Date & Time
HAT2.46Highest Astronomical Tide
HAT Date & Time10/29/2007 03:06HAT Date and Time
LAT-0.99Lowest Astronomical Tide
LAT Date & Time01/20/2023 12:42LAT Date and Time
Tidal Datum Analysis Periods




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