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 07/28 13:18 Highest, last 24 hr Lowest, last 24 hr
Water level -1.2 feet (-0.4 meters) MSL
-0.1 feet NGVD29
2.4 feet ( 0.7 meters) MSL
3.5 feet NGVD29
at 07/27 17:48
-1.4 feet (-0.4 meters) MSL
-0.3 feet NGVD29
at 07/28 12:30
Tide Tide is flooding.
Rate of change: 0.3 feet/hr
( 0.09 meters/hr).
Water temperature 78 deg F (25deg C) 78 deg F (25deg C)
at 07/28 13:18
76deg F (24 deg C)
at 07/28 07:00
Weather - note times below are GMT (EST+5 hours, EDT+4 hours)
Weather Observations at Merrick, NY, USA
Time Last Updated on Jul 28 2015, 5:25 pm BST   Maximum, last 24 hr Minimum, last 24 hr
Average wind speed 9 mph 12 mph
at 5:24pm
Wind gust 0 mph [no data] mph
at [no data]
Wind direction South : 190 deg true    
STDEV Wind Direction [no data] deg    
Wind speed change - 1 hour trend ND    
Air temperature 80.3 deg F (26.8 deg C) 80.4 deg F (26.67 deg C)
at 5:25pm
72.6 deg F (22.22 deg C)
at 9:35am
Barometric pressure 29 in Hg (1014 mbar) 30 in Hg (0 mbar)
at 3:13am
29 in Hg (0 mbar)
at 5:12pm
Barometer - 1 hour trend Falling Slowly    


  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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