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ALL DATA ARE EASTERN STANDARD TIME

USGS 01310740 REYNOLDS CHANNEL AT POINT LOOKOUT NY

PROVISIONAL DATA SUBJECT TO REVISION

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This station is operated in cooperation with:
   NYS Department of Environmental Conservation
   Town of Hempstead Dept.of Conservation and Waterways


LOCATION.--Lat 40°35'36", long 73°35'03" referenced to North American Datum of 1927, Nassau County, NY, Hydrologic Unit 02030202, at Town of Hempstead East Marina, 750 ft east of Loop Parkway Bridge, in Point Lookout. Water-quality monitor at site 100 ft north.
PERIOD OF RECORD.--December 1997 to current year. January 1974 to June 1994, in files of Town of Hempstead Department of Conservation & Waterways. Precipitation, wind speed and direction, air temperature, relative humidity, and barometric pressure records for March 1998 to current year, and solar radiation records for August 2004 to current year, are unpublished and available in files of the Geological Survey.
GAGE.--Water-stage recorder. Datum of gage is NGVD of 1929. January 1974 to June 1994, water-stage recorder at site 150 ft northeast.
REMARKS.--Records excellent, except those for Oct. 1 to Jan. 1 and Feb. 27 to Aug. 30, which are good. Satellite and telephone elevation, precipitation, and wind speed and direction telemeter at station. Telephone telemeter for air temperature, relative humidity, barometric pressure, and solar radiation parameters at station.
EXTREMES FOR PERIOD OF RECORD.--Maximum elevation, 5.75 ft, Apr. 16, 2007; minimum, -4.28 ft, Mar. 9, 2005.
EXTREMES OUTSIDE PERIOD OF RECORD.--Storm tide of Sept. 27, 1985, reached an elevation of 7.3 ft, from information provided by Town of Hempstead Department of Conservation & Waterways. Storm tide of Dec. 11, 1992, reached an elevation of 7.3 ft, from high-water mark at site 4.0 mi west. Minimum elevation recorded, -4.9 ft, Jan. 11, 1978, Mar. 16, 1980, from information provided by Town of Hempstead Department of Conservation & Waterways.
EXTREMES FOR CURRENT YEAR.--Maximum elevation, 5.67 ft, Oct. 18; minimum, -3.57 ft, Jan. 30.
PERIOD OF RECORD1.--October 2004 to current year. Water temperature records for March 1998 to September 2004, and sampling depth records for October 2004 to current year are unpublished and available in files of the Geological Survey.
INSTRUMENTATION1.--Water-quality monitor provides 12-minute-interval readings collected from 1.6 ft above bottom. October 2004 to February 2005, water-quality monitor provided 6-minute-interval readings. Salinity record computed from specific-conductance readings.
EXTREMES FOR PERIOD OF RECORD1.--WATER TEMPERATURE: Maximum, 27.8°C, Jul. 20, 2005; minimum, -1.7°C, Jan. 23, 24, 28, 2005.
SALINITY: Maximum, 34.6 psu, Feb. 9, 2010; minimum, 21.4 psu, Oct. 14, 15, 2005.
DISSOLVED OXYGEN: Maximum, 15.9 mg/L, Mar. 1, 2007; minimum, 1.9 mg/L, Jun. 24, 2008.
TURBIDITY: Maximum, 300 FNU, May. 3, 2010; minimum, <0.1 FNU several days each year 2005-2010.
CHLOROPHYLL: Maximum, 110 ug/L, Apr. 10, 2010; minimum, <0.1 ug/L many days each year 2006-08, Jun. 9, 10, 2009.
EXTREMES FOR CURRENT YEAR1.--WATER TEMPERATURE: Maximum, 27.6°C, Jul. 12; minimum, -0.2°C, Feb. 7.
SALINITY: Maximum, 34.6 psu, Feb. 9; minimum, 26.2 psu, Mar. 14.
DISSOLVED OXYGEN: Maximum, 14.3 mg/L, Feb. 22; minimum, 2.9 mg/L, May. 25.
TURBIDITY: Maximum, 300 FNU, May. 3; minimum, <0.1 FNU, on several days.
CHLOROPHYLL: Maximum, 83 ug/L, Apr. 8; minimum, 0.3 ug/L, Feb. 4.
1 Water-Quality Records
Derived from NY Annual Water-Data Report 2010

Peak Flow and Stage Information

Station Picture

Webcam view of Reynolds Channel Picture updated hourly

Webcam view of Atlantic Ocean shore

Elevation (observed) and tide elevation (predicted) for this station are reported to NGVD 1929. To convert data to NAVD 1988 subtract 1.13 ft. To convert data to MLLW datum add 1.10 ft. These corrections vary from site to site.

NGVD 1929 is the National Geodetic Vertical Datum of 1929, formerly called "mean sea level" or "Sea Level Datum of 1929." NGVD 1929 was a general adjustment of the first-order level nets fit to mean sea level at 26 tide gages in the US and Canada.
NAVD 1988 is the North American Vertical Datum of 1988, which is a geodetic datum derived from a general adjustment of the first-order level nets fit to 1 tide gage in eastern Canada.
MLLW is mean lower low water, which is a site-specific datum determined by averaging the lowest of the 2 low tides that occur each day over a 19-year tidal epoch. For tide gages with less than 19 years of record, this datum is estimated by correlation with long-term tide gages.

Additional sensor graph(s) available (click on graph or sensor name)

Water elevation, astronomical-tide elevation, and residual water level
Water elevation, astronomical-tide
elevation, and residual water level

Graph updated every 15 minutes
Alternate link to graph
Wind speed, wind gust speed, and barometric pressure
Wind speed, wind gust speed,
and barometric pressure

Graph updated hourly
Alternate link to graph
This station managed by the NY Water Science Center, Coram Program Office.

Available Parameters Available Period
All 18 Available Parameters for this site
  
62619 Est/ocean elev, NGVD 2007-10-01  2014-10-31
00045 Precipitation 2014-07-03  2014-10-31
82127 Wind speed 2014-07-03  2014-10-31
00036 Wind direction 2014-07-03  2014-10-31
00020 Temperature, air 2014-07-03  2014-10-31
00010 Temperature, water, monitor 2007-10-01  2014-10-31
00052 Relative humidity 2014-07-03  2014-10-31
75969 BarometricPressUncor 2014-07-03  2014-10-31
61727 Wind gust speed 2014-07-03  2014-10-31
61729 Wind gust direction 2014-07-03  2014-10-31
62619 Est/ocean elev, NGVD, tidal prediction 2014-07-03  2014-11-01
62608 Solar radiation down 2014-07-03  2014-10-31
00095 Specific cond at 25C, monitor 2007-10-01  2014-10-31
90860 Salinity, wu at 25C, monitor 2007-10-01  2014-10-31
00300 Dissolved oxygen, monitor 2007-10-01  2014-10-31
63680 Turbidity, Form Neph, monitor 2007-10-01  2014-10-31
00003 Sampling depth, monitor 2014-07-03  2014-10-31
62361 Chlorophyll, in situ, monitor 2007-10-01  2014-10-31

Graph
Graph w/ stats
Graph w/o stats
Graph w/ (up to 3) parms
Table
Tab-separated
Days  (7)
 

  -- or --
Begin date
 

End date
 

Summary of all available data for this site
Instantaneous-data availability statement


Estuary or ocean water surface elevation above NGVD 1929, feet

Most recent instantaneous value: 0.98   10-31-2014  17:48 EST
Graph of  Estuary or ocean water surface elevation above NGVD 1929, feet

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Precipitation, total, inches

Most recent instantaneous value: 0.00   10-31-2014  17:48 EST
Graph of  Precipitation, total, inches

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Wind speed, knots

Most recent instantaneous value: 13.2   10-31-2014  17:48 EST
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Wind direction, degrees clockwise from true north

Most recent instantaneous value: 42   10-31-2014  17:48 EST
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Temperature, air, degrees Celsius

Most recent instantaneous value: 12.3   10-31-2014  17:24 EST
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Temperature, water, degrees Celsius, monitor

Most recent instantaneous value: 14.4   10-31-2014  17:24 EST
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Relative humidity, percent

Most recent instantaneous value: 72.0   10-31-2014  17:24 EST
Graph of  Relative humidity, percent

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Barometric pressure, not corrected to sea level, millibars

Most recent instantaneous value: 1,012.7   10-31-2014  17:24 EST
Graph of  Barometric pressure, not corrected to sea level, millibars

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Wind gust speed, air, knots

Most recent instantaneous value: 16.6   10-31-2014  17:24 EST
Graph of  Wind gust speed, air, knots

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Wind gust direction, air, degrees clockwise from true north

Most recent instantaneous value: 57   10-31-2014  17:24 EST
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Estuary or ocean water surface elevation above NGVD 1929, feet, tidal prediction

Most recent instantaneous value: 1.07   11-01-2014  23:54 EST
Graph of  Estuary or ocean water surface elevation above NGVD 1929, feet, tidal prediction

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Total solar radiation (direct + diffuse radiation on a horizontal surface), watts per square meter

Most recent instantaneous value: 0.0   10-31-2014  17:24 EST
Graph of  Total solar radiation (direct + diffuse radiation on a horizontal surface), watts per square meter

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Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius, monitor

Most recent instantaneous value: 45,200   10-31-2014  17:24 EST
Graph of  Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius, monitor

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Salinity, water, unfiltered, practical salinity units at 25 degrees Celsius, monitor

Most recent instantaneous value: 29.2   10-31-2014  17:24 EST
Graph of  Salinity, water, unfiltered, practical salinity units at 25 degrees Celsius, monitor

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Dissolved oxygen, water, unfiltered, milligrams per liter, monitor

Most recent instantaneous value: 8.2   10-31-2014  17:24 EST
Graph of  Dissolved oxygen, water, unfiltered, milligrams per liter, monitor

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Turbidity, water, unfiltered, monochrome near infra-red LED light, 780-900 nm, detection angle 90 +-2.5 degrees, formazin nephelometric units (FNU), monitor

Most recent instantaneous value: 30   10-31-2014  17:24 EST
Graph of  Turbidity, water, unfiltered, monochrome near infra-red LED light, 780-900 nm, detection angle 90 +-2.5 degrees, formazin nephelometric units (FNU), monitor

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Sampling depth, feet, monitor

Most recent instantaneous value: 7.8   10-31-2014  17:24 EST
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Chlorophyll, total, water, fluorometric, 650-700 nanometers, in situ sensor, micrograms per liter, monitor

Most recent instantaneous value: 3.1   10-31-2014  17:24 EST
Graph of  Chlorophyll, total, water, fluorometric, 650-700 nanometers, in situ sensor, micrograms per liter, monitor

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