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 03/01 06:54 Highest, last 24 hr Lowest, last 24 hr
Water level -0.0 feet (-0.0 meters) MSL
1.1 feet NGVD29
0.8 feet ( 0.2 meters) MSL
1.9 feet NGVD29
at 03/01 05:00
-2.4 feet (-0.7 meters) MSL
-1.3 feet NGVD29
at 02/28 22:48
Tide Tide is ebbing.
Rate of change: -0.5 feet/hr
(-0.16 meters/hr).
Water temperature 31 deg F (-1deg C) 33 deg F ( 0deg C)
at 02/28 13:48
24deg F (-5 deg C)
at 02/28 10:42
Weather - note times below are GMT (EST+5 hours, EDT+4 hours)
Weather Observations at Merrick, NY, USA
Time Last Updated on Mar 1 2015, 12:10 pm GMT   Maximum, last 24 hr Minimum, last 24 hr
Average wind speed 1 mph 6 mph
at 5:35am
Wind gust 0 mph [no data] mph
at [no data]
Wind direction North : 355 deg true    
STDEV Wind Direction [no data] deg    
Wind speed change - 1 hour trend ND    
Air temperature 25.1 deg F (-3.8 deg C) 26.4 deg F (-3.33 deg C)
at 12:00am
19.8 deg F (-7.22 deg C)
at 9:28am
Barometric pressure 30 in Hg (1038 mbar) 30 in Hg (0 mbar)
at 2:19am
30 in Hg (0 mbar)
at 12:10pm
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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LIShore is a project of the School of Marine and Atmospheric Sciences at Stony Brook University in collaboration with the LIShore partners.

Tom Wilson (email: welcomes your comments or questions regarding this web site.