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 07/25 22:00 Highest, last 24 hr Lowest, last 24 hr
Water level 0.3 feet ( 0.1 meters) MSL
1.4 feet NGVD29
2.7 feet ( 0.8 meters) MSL
3.8 feet NGVD29
at 07/25 13:42
-1.5 feet (-0.5 meters) MSL
-0.4 feet NGVD29
at 07/25 07:36
Tide Tide is flooding.
Rate of change: 0.8 feet/hr
( 0.25 meters/hr).
Water temperature 75 deg F (24deg C) 76 deg F (25deg C)
at 07/25 17:12
73deg F (23 deg C)
at 07/25 05:54
Weather - note times below are GMT (EST+5 hours, EDT+4 hours)
Weather Observations at Merrick, NY, USA
Time Last Updated on Jul 26 2016, 2:10 am BST   Maximum, last 24 hr Minimum, last 24 hr
Average wind speed 8 mph 14 mph
at 1:38am
Wind gust 0 mph [no data] mph
at [no data]
Wind direction Southwest : 219 deg true    
STDEV Wind Direction [no data] deg    
Wind speed change - 1 hour trend ND    
Air temperature 73.7 deg F (23.2 deg C) 74.6 deg F (23.33 deg C)
at 12:09am
73.3 deg F (22.78 deg C)
at 1:08am
Barometric pressure 29 in Hg (1011 mbar) 29 in Hg (0 mbar)
at 12:00am
29 in Hg (0 mbar)
at 12:44am
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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