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 Feb 18 2018, 4:25 am GMT

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 02/17 23:18 Highest, last 24 hr Lowest, last 24 hr
Water level 1.7 feet ( 0.5 meters) MSL
2.9 feet NGVD29
2.7 feet ( 0.8 meters) MSL
3.8 feet NGVD29
at 02/17 21:30
-1.3 feet (-0.4 meters) MSL
-0.2 feet NGVD29
at 02/17 03:24
Tide Tide is ebbing.
Rate of change: -0.7 feet/hr
(-0.22 meters/hr).
Water temperature 39 deg F ( 4deg C) 40 deg F ( 4deg C)
at 02/17 15:12
38deg F ( 3 deg C)
at 02/17 07:06
Weather - note times below are GMT (EST+5 hours, EDT+4 hours)

Weather Observations at Merrick, NY, USA
Time Last Updated on Feb 18 2018, 4:25 am GMT   Maximum, last 24 hr Minimum, last 24 hr
Average wind speed 0 mph 11 mph
at 12:00am
Wind direction North : 354 deg true    
Air temperature 32.4 deg F (0.2 deg C) 37.8 deg F (2.78 deg C)
at 12:00am
32.4 deg F (0 deg C)
at 4:19am
Barometric pressure 30 in Hg (1015 mbar) 30 in Hg (0 mbar)
at 12:00am
30 in Hg (0 mbar)
at 4:24am
Barometer - 1 hour trend Falling Rapidly    


  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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