Datums for 8571559, McCready's Creek MD


NOTICE: All data values are relative to the MLLW.

Elevations on Mean Lower Low Water

Station: 8571559, McCready's Creek, MD
Status: Superseded (Apr 17 2003) (Accepted Sep 21 2000)
Units: Feet
Control Station: 8638610 Sewells Point, VA
T.M.: 75
Epoch: 1960-1978
Datum: MLLW
DatumValueDescription
MHHW2.67Mean Higher-High Water
MHW2.41Mean High Water
MTL1.28Mean Tide Level
MSL1.27Mean Sea Level
DTL1.34Mean Diurnal Tide Level
MLW0.15Mean Low Water
MLLW0.00Mean Lower-Low Water
NAVD88
STND-6.27Station Datum
GT2.66Great Diurnal Range
MN2.26Mean Range of Tide
DHQ0.25Mean Diurnal High Water Inequality
DLQ0.15Mean Diurnal Low Water Inequality
HWI6.61Greenwich High Water Interval (in hours)
LWI0.87Greenwich Low Water Interval (in hours)
Max Tide4.98Highest Observed Tide
Max Tide Date & Time05/12/2008 12:18Highest Observed Tide Date & Time
Min Tide-1.20Lowest Observed Tide
Min Tide Date & Time01/15/2006 15:12Lowest Observed Tide Date & Time
HAT3.04Highest Astronomical Tide
HAT Date & Time04/28/2025 06:36HAT Date and Time
LAT-0.26Lowest Astronomical Tide
LAT Date & Time03/02/2037 13:18LAT Date and Time
Tidal Datum Analysis Periods
02/01/1997 - 02/28/1997




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