Merrick station location
Station location

Sea Conditions at

Long Island New York USA
Latitude 40 degrees 38.6 minutes North
Longitude 73 degrees 32.4 minutes West

A service of LIShore.

Last Updated on Apr 23 2017, 9:25 pm BST

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Tom Wilson,

Station status: Page update and weather are reporting in Greenwich Mean Time (Eastern Daylight time + 4 hours, 1600 GMT = noon EST). We will switch to zone local (EST and EDT) as soon as possible.
Bay Tide
See notes below regarding level references.
Time 04/23 17:24 Highest, last 24 hr Lowest, last 24 hr
Water level 2.4 feet ( 0.7 meters) MSL
3.6 feet NGVD29
2.7 feet ( 0.8 meters) MSL
3.9 feet NGVD29
at 04/23 06:18
-0.9 feet (-0.3 meters) MSL
0.3 feet NGVD29
at 04/23 13:18
Tide Tide is flooding.
Rate of change: 0.7 feet/hr
( 0.22 meters/hr).
Water temperature 54 deg F (12deg C) 55 deg F (13deg C)
at 04/23 15:54
52deg F (11 deg C)
at 04/23 08:18
Weather - note times below are GMT (EST+5 hours, EDT+4 hours)

Weather Observations at Merrick, NY, USA
Time Last Updated on Apr 23 2017, 9:25 pm BST   Maximum, last 24 hr Minimum, last 24 hr
Average wind speed 4 mph 17 mph
at 5:24am
Wind direction East : 91 deg true    
Air temperature 53.0 deg F (11.7 deg C) 57.3 deg F (13.89 deg C)
at 4:19pm
45.8 deg F (7.22 deg C)
at 10:53am
Barometric pressure 30 in Hg (1019 mbar) 30 in Hg (0 mbar)
at 4:56pm
29 in Hg (0 mbar)
at 12:20am
Barometer - 1 hour trend Steady    


  1. Real-time data are unchecked and preliminary. Please read this disclaimer.
  2. MSL = measurement referenced to Mean Sea Level. Seasonal and weather system biases highly affect estuarine water levels, therefore the MSL datum for this station is preliminary until data are collected over a sufficient length of time to define it accurately.
  3. NGVD29 = measurement referenced to National Geodetic Vertical Datum of 1929.
  4. Daily precipitation resets at solar midnight (midnight EST, 11:00pm EDT). Heated gauge converts frozen preciptation to liquid equivalent.

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