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 09/02 10:36 Highest, last 24 hr Lowest, last 24 hr
Water level 2.4 feet ( 0.7 meters) MSL
3.6 feet NGVD29
2.8 feet ( 0.9 meters) MSL
4.0 feet NGVD29
at 09/01 11:12
-1.8 feet (-0.5 meters) MSL
-0.6 feet NGVD29
at 09/02 06:06
Tide Tide is flooding.
Rate of change: 0.8 feet/hr
( 0.25 meters/hr).
Water temperature 74 deg F (23deg C) 76 deg F (25deg C)
at 09/01 15:18
74deg F (23 deg C)
at 09/02 05:30
Weather - note times below are GMT (EST+5 hours, EDT+4 hours)
Weather Observations at Merrick, NY, USA
Time Last Updated on Sep 2 2015, 2:40 pm BST   Maximum, last 24 hr Minimum, last 24 hr
Average wind speed 5 mph 8 mph
at 2:30pm
Wind gust 0 mph [no data] mph
at [no data]
Wind direction Southwest : 221 deg true    
STDEV Wind Direction [no data] deg    
Wind speed change - 1 hour trend ND    
Air temperature 77.1 deg F (25.1 deg C) 77.1 deg F (25 deg C)
at 2:33pm
71.2 deg F (21.67 deg C)
at 9:57am
Barometric pressure 30 in Hg (1016 mbar) 30 in Hg (0 mbar)
at 3:00am
30 in Hg (0 mbar)
at 9:10am
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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