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Current Datum Value: 15.02

Datums for 8760943, SW Pass LA


NOTICE: All data values are relative to the MLLW.

Elevations on Mean Lower Low Water

Station: 8760943, SW Pass, LA
Status: Accepted (Apr 9 2018)
Units: Feet
Control Station: 8761724 Grand Isle, LA
T.M.: 90
Epoch: 2012-2016
Datum: MLLW
DatumValueDescription
MHHW1.26Mean Higher-High Water
MHW1.24Mean High Water
MTL0.63Mean Tide Level
MSL0.63Mean Sea Level
DTL0.63Mean Diurnal Tide Level
MLW0.03Mean Low Water
MLLW0.00Mean Lower-Low Water
NAVD88
STND-15.02Station Datum
GT1.26Great Diurnal Range
MN1.21Mean Range of Tide
DHQ0.02Mean Diurnal High Water Inequality
DLQ0.03Mean Diurnal Low Water Inequality
HWIGreenwich High Water Interval (in hours)
LWIGreenwich Low Water Interval (in hours)
Max Tide3.18Highest Observed Tide
Max Tide Date & Time09/26/2002 04:00Highest Observed Tide Date & Time
Min Tide-1.86Lowest Observed Tide
Min Tide Date & Time01/19/2003 02:00Lowest Observed Tide Date & Time
HAT2.02Highest Astronomical Tide
HAT Date & Time10/18/1989 03:18HAT Date and Time
LAT-0.98Lowest Astronomical Tide
LAT Date & Time01/27/1987 11:06LAT Date and Time
Tidal Datum Analysis Periods
03/01/2003 - 02/29/2004




Products available at 8760943 SW Pass, LA

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