Smith Point Bridge
Smith Point Bridge
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Sea Conditions at

Shirley, Long Island New York USA
Latitude 40 degrees 44.29 minutes North
Longitude 72 degrees 52.12 minutes West

A service of LIShore.

Page last updated 09/25/2013 10:31 EDT

Bay Tide at the Smith Point Bridge.
See note below regarding MSL reference.
Time 11/23 11:18 Highest, last 24 hr Lowest, last 24 hr
Water level 0.3 feet ( 0.1 meters) MSL
1.4 feet NGVD29
0.7 feet ( 0.20 meters) MSL
1.7 feet NGVD29
at 11/22 11:24
-0.8 feet (-0.23 meters) MSL
0.3 feet NGVD29
at 11/23 04:30
Tide Tide is ebbing.
Rate of change: -0.1 feet/hr
(-0.04 meters/hr).
Water temperature 40 deg F ( 5 deg C) 42 deg F ( 6 deg C)
at 11/22 22:54
38 deg F ( 3 deg C)
at 11/22 11:42

Weather Observations at Smith Point Bridge
Time 11/23/14 4:41p EDT  Maximum, last 24 hr Minimum, last 24 hr
Average wind speed 11 mph 36.0 mph
at 12:00a
[no data] mph
at [no data]
Wind gust 36 mph [no data] mph
at [no data]
Wind direction WNW : 283 deg true    
STDEV Wind Direction [no data] deg    
Wind speed change - 1 hour trend ND    
Air temperature 45.5 deg F (7.5 deg C) 47.2 deg F (0 deg C)
at 8:05a
41.7 deg F (0 deg C)
Barometric pressure 30 in Hg (1021 mbar) 30 in Hg (0 mbar)
at 12:03a
30 in Hg (0 mbar)
at 4:37p
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.
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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.