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Current Datum Value: 25.46

Datums for 8632837, Rappahannock Light VA


NOTICE: All data values are relative to the MLLW.

Elevations on Mean Lower Low Water

Station: 8632837, Rappahannock Light, VA
Status: Accepted (Oct 14 2011)
Units: Feet
Control Station: 8636580 Windmill Point, VA
T.M.: 0
Epoch: 1983-2001
Datum: MLLW
DatumValueDescription
MHHW1.87Mean Higher-High Water
MHW1.70Mean High Water
MTL0.91Mean Tide Level
MSL0.94Mean Sea Level
DTL0.94Mean Diurnal Tide Level
MLW0.13Mean Low Water
MLLW0.00Mean Lower-Low Water
NAVD88
STND-25.46Station Datum
GT1.87Great Diurnal Range
MN1.57Mean Range of Tide
DHQ0.17Mean Diurnal High Water Inequality
DLQ0.13Mean Diurnal Low Water Inequality
HWI2.88Greenwich High Water Interval (in hours)
LWI9.49Greenwich Low Water Interval (in hours)
Max TideHighest Observed Tide
Max Tide Date & Time Highest Observed Tide Date & Time
Min TideLowest Observed Tide
Min Tide Date & Time Lowest Observed Tide Date & Time
HAT2.21Highest Astronomical Tide
HAT Date & Time11/13/1985 15:24HAT Date and Time
LAT-0.20Lowest Astronomical Tide
LAT Date & Time03/09/1993 22:12LAT Date and Time
Tidal Datum Analysis Periods
06/01/2007 - 09/30/2007




Products available at 8632837 Rappahannock Light, VA

Revised: 08/08/2018
NOAA / National Ocean Service
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