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.

Last Updated on Feb 21 2018, 7:10 am GMT

Station status: Page update and weather are reporting in Greenwich Mean Time (Eastern Daylight time + 4 hours, 1600 GMT = noon EST). We will switch to zone local (EST and EDT) as soon as possible.
Bay Tide
See notes below regarding level references.
Time 02/21 02:12 Highest, last 24 hr Lowest, last 24 hr
Water level 0.7 feet ( 0.2 meters) MSL
1.8 feet NGVD29
2.0 feet ( 0.6 meters) MSL
3.2 feet NGVD29
at 02/20 23:36
-1.6 feet (-0.5 meters) MSL
-0.4 feet NGVD29
at 02/20 17:42
Tide Tide is ebbing.
Rate of change: -0.6 feet/hr
(-0.19 meters/hr).
Water temperature 41 deg F ( 5deg C) 46 deg F ( 8deg C)
at 02/20 17:48
39deg F ( 4 deg C)
at 02/20 02:54
Weather - note times below are GMT (EST+5 hours, EDT+4 hours)

Weather Observations at Merrick, NY, USA
Time Last Updated on Feb 21 2018, 7:10 am GMT   Maximum, last 24 hr Minimum, last 24 hr
Average wind speed 6 mph 12 mph
at 4:33am
Wind direction West : 259 deg true    
Air temperature 45.9 deg F (7.7 deg C) 47 deg F (8.33 deg C)
at 12:00am
43.9 deg F (6.11 deg C)
at 4:07am
Barometric pressure 30 in Hg (1026 mbar) 30 in Hg (0 mbar)
at 4:47am
30 in Hg (0 mbar)
at 12:22am
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.

Heading for port...
About LIShore | Data Access | LIShore Home | Photographs and maps | Help LIShore grow | Disclaimer

Data may be unchecked and preliminary, for further information read this disclaimer

Stony Brook logoLIShore 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.

Copyright 2018 School of Marine and Atmospheric Sciences, All Rights Reserved | SoMAS, Stony Brook University, Stony Brook, NY 11794-5000, USA
latest.php was last modified: January 24 2017 13:44:11