Notice: On Sunday, January 12, 2025, beginning around 2:00 pm EST through Monday, January 13, 2025, IT system maintenance will be performed that may impact the https://TidesAndCurrents.noaa.gov website. There may be periods of time where the website will be running with limited capabilities.
Datum | Value | Description |
---|---|---|
MHHW | 8.51 | Mean Higher-High Water |
MHW | 7.79 | Mean High Water |
MTL | 5.07 | Mean Tide Level |
MSL | 4.95 | Mean Sea Level |
DTL | 4.25 | Mean Diurnal Tide Level |
MLW | 2.35 | Mean Low Water |
MLLW | 0.00 | Mean Lower-Low Water |
NAVD88 | 0.48 | North American Vertical Datum of 1988 |
STND | -16.04 | Station Datum |
GT | 8.51 | Great Diurnal Range |
MN | 5.44 | Mean Range of Tide |
DHQ | 0.72 | Mean Diurnal High Water Inequality |
DLQ | 2.36 | Mean Diurnal Low Water Inequality |
HWI | 0.63 | Greenwich High Water Interval (in hours) |
LWI | 6.85 | Greenwich Low Water Interval (in hours) |
Max Tide | 10.42 | Highest Observed Tide |
Max Tide Date & Time | 01/05/1975 10:00 | Highest Observed Tide Date & Time |
Min Tide | -3.47 | Lowest Observed Tide |
Min Tide Date & Time | 12/30/1974 23:36 | Lowest Observed Tide Date & Time |
HAT | Highest Astronomical Tide | |
HAT Date & Time | HAT Date and Time | |
LAT | Lowest Astronomical Tide | |
LAT Date & Time | LAT Date and Time |
Tidal Datum Analysis Periods |
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02/01/1974 - 01/31/1975 |