Coastal Flood Advisory
USGS 8531680 · Sandy Hook , NJ
Sandy Hook Tidal Dashboard
Datum
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Datum quick definitions
MLLW
: Mean Lower Low Water — the average of the lower of the two daily low tides.
MSL
: Mean Sea Level — the long-term average sea level over a standard period.
NAVD88
: North American Vertical Datum of 1988 — a geodetic land-based elevation reference used on maps and surveys.
MHHW
: Mean Higher High Water — the average of the higher of the two daily high tides.
Last updated: —
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Live conditions
Time Expressed In ET
Daily range (
—
)
Current water elevation
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ft MLLW
Updated: —
Max
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ft MLLW
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Min
—
ft MLLW
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—
Flood outlook (Next 72 Hours)
Minor
—
hrs
Moderate
—
hrs
Major
—
hrs
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—
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Minor
7.20–8.20 ft
Moderate
8.20–9.20 ft
Major
≥ 9.20 ft
Observations & Predictions (NOAA)
Minor
—
Moderate
—
Major
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Cumulative annual flooding
Computing…
Flooding over the years
Total
Minor
Moderate
Major
Average number of floods per month
Total
Minor
Moderate
Major
Computing…
Month
Average Total Number of Floods
Average Minor
Average Moderate
Average Major
Historic flooding filter (enter a range)
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Date/Time (EST)
Peak (ft MLLW)
Type
Top ten highest tides
Rank
Date
Height (ft MLLW)
Type
NJ tide gauge map
Click a marker for station info.