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 10/30 11:12 Highest, last 24 hr Lowest, last 24 hr
Water level 0.7 feet ( 0.2 meters) MSL
1.8 feet NGVD29
0.7 feet ( 0.2 meters) MSL
1.8 feet NGVD29
at 10/30 11:12
0.3 feet ( 0.1 meters) MSL
1.5 feet NGVD29
at 10/30 10:42
Tide Tide is flooding.
Rate of change: 0.7 feet/hr
( 0.23 meters/hr).
Water temperature 58 deg F (14deg C) 58 deg F (14deg C)
at 10/30 11:12
58deg F (14 deg C)
at 10/30 10:48
Weather - note times below are GMT (EST+5 hours, EDT+4 hours)
Weather Observations at Merrick, NY, USA
Time Last Updated on Oct 30 2014, 3:40 pm GMT   Maximum, last 24 hr Minimum, last 24 hr
Average wind speed 6 mph 13 mph
at 3:26pm
Wind gust 0 mph [no data] mph
at [no data]
Wind direction North : 352 deg true    
STDEV Wind Direction [no data] deg    
Wind speed change - 1 hour trend ND    
Air temperature 55.7 deg F (13.2 deg C) 56.4 deg F (13.33 deg C)
at 3:06pm
45.7 deg F (7.22 deg C)
at 11:17am
Barometric pressure 29 in Hg (1015 mbar) 29 in Hg (0 mbar)
at 1:21pm
29 in Hg (0 mbar)
at 12:13am
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.