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.

Page last updated 09/25/2013 10:32 EDT

STATUS NOTICE Fall 2013: The station at Merrick was destroyed by Superstorm Sandy and has been rebuilt.
Bay Tide
See notes below regarding level references.
Time [no data] Highest, last 24 hr Lowest, last 24 hr
Water level [no data] feet ([no data] meters) MSL
[no data] feet NGVD29
2.4 feet ( 0.7 meters) MSL
3.5 feet NGVD29
at 10/06 03:36
-0.4 feet (-0.1 meters) MSL
0.8 feet NGVD29
at 10/06 10:18
Tide Tide is [no data].
Rate of change: [no data] feet/hr
([no data] meters/hr).
Water temperature [no data] deg F ([no data]deg C) 58 deg F (15deg C)
at 10/06 10:30
58deg F (15 deg C)
at 10/05 22:42
Weather - note times below are GMT (EST+5 hours, EDT+4 hours)
Weather Observations at Merrick, NY, USA
Time Last Updated on Oct 7 2015, 2:10 am BST   Maximum, last 24 hr Minimum, last 24 hr
Average wind speed 0 mph 4 mph
at 1:20am
Wind gust 0 mph [no data] mph
at [no data]
Wind direction North : 340 deg true    
STDEV Wind Direction [no data] deg    
Wind speed change - 1 hour trend ND    
Air temperature 60.0 deg F (15.6 deg C) 63 deg F (17.22 deg C)
at 12:20am
59.9 deg F (15 deg C)
at 1:48am
Barometric pressure 29 in Hg (1014 mbar) 29 in Hg (0 mbar)
at 1:20am
29 in Hg (0 mbar)
at 1:00am
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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Tom Wilson (email: welcomes your comments or questions regarding this web site.