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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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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pressure records for March 1998 to current year, and solar radiation records for August 2004 to current year, are unpublished and available in files of the Geological Survey.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. 1-20, 22-29, and June 16 to Sept. 2, which are good; and those estimated with MISTE for June 11, which are poor. Periods of missing record were estimated with MISTE using a linear regression with 01310521 and 01311143. Satellite and telephone elevation, precipitation, and wind speed and direction telemeters at station. Telephone telemeter for air temperature, relative humidity, barometric pressure, and solar radiation parameters at station.
EXTREMES FOR PERIOD OF RECORD.--Maximum elevation, 9.90 ft, Oct. 29, 2013; minimum elevation, -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, 9.90 ft, Oct. 29; minimum elevation, -2.84 ft, Jan. 10.
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temperature records for March 1998 to September 2004, and sampling depth records for October 2004 to current year are unpublished and available in files of the Geological Survey.
PERIOD OF DAILY RECORD1.--
WATER TEMPERATURE: October 2004 to current year.
SALINITY: October 2004 to current year.
DISSOLVED OXYGEN: October 2004 to current year.
TURBIDITY: October 2004 to current year.
CHLOROPHYLL: August 2006 to current year.
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.
REMARKS1.--Telephone telemeter for water temperature, specific conductance, dissolved oxygen, turbidity, chlorophyll, and sampling depth parameters at station. Interruptions of record were due to malfunction of water-quality monitor or sensors.
WATER TEMPERATURE: Records excellent.
SALINITY: Records excellent, except those for Apr. 11 to June 11 and Sept. 12-25, which are good; and Jan. 2, which are fair.
DISSOLVED OXYGEN: Records excellent, except those for Dec. 28, June 14 to July 7, and Aug. 3-14, which are good; for Feb. 28 to Mar. 2, July 8, and Aug 15-25, which are fair; and those for Mar. 3 to Apr. 5, July 9-12,and Aug. 26-29, which are poor.
TURBIDITY: Records excellent, except those for Oct. 1-6, Nov. 15-27, Dec. 21-26, June 12-13, July 7-10 and Aug. 3-4, which are good; and for Oct. 7-13, Nov. 28-30, and June 14-16, which are fair; and for Oct. 14-18, Feb. 28 to Apr. 3, May 19-20, July 11-14, Aug. 5-8, and 14, which are poor.
CHLOROPHYLL: Records excellent, except those for Oct. 1-14, 18, May 12, June 12-13, July 6-7, Aug. 10, 15, 17-21, and Sept. 5-8, which are good; for Oct. 15-17, May 10-11, 14-23, June 14, July 8, Aug. 22-27, Sept. 9-12, 14-17, and 19-21,which are fair; and those for Nov. 30 to Apr. 12, May 13, May 24 to June 11, June 15-18, July 9-13 Aug. 28-29, Sept. 13, 18 and 22-25, which are poor. Part of the record for June 19 to July 5, and July 14-31 exceeded the maximum allowable limits and was deleted.
EXTREMES FOR PERIOD OF RECORD1.--WATER TEMPERATURE: Maximum, 27.9 °C, July 18, 2013, Aug. 4, 2012; 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, June 24, 2008.
TURBIDITY: Maximum, 410 FNU, Sept. 14, 2013; minimum, <0.1 FNU several days each year 2005-2011.
CHLOROPHYLL: Maximum, 100 ug/L, Apr. 11, 2010, Mar. 12, 2012, but may have been higher during period of missing record; minimum, <0.1 ug/L many days each year 2006-08, June 9, 10, 2009.
EXTREMES FOR CURRENT YEAR1.--WATER TEMPERATURE: Maximum, 27.9 °C, July 18; minimum, 2.8 °C, Dec. 31.
SALINITY: Maximum, 33.9 psu, several times in Mar. and Apr.; minimum, 26.6 psu, June 8.
DISSOLVED OXYGEN: Maximum, 15.7 mg/L, Mar. 27; minimum, 2.6 mg/L, Aug. 27.
TURBIDITY: Maximum, 410 FNU, Sept. 14; minimum, 0.7 FNU, Sept. 27.
CHLOROPHYLL: Maximum, 76 ug/L, June 9; minimum, 0.1 ug/L, Oct. 30-31, Nov. 9, 12, and 17.
1 Water-Quality Records
Derived from NY Annual Water-Data Report 2012

Peak Flow and Stage Information

Webcam view of Reynolds Channel Picture updated hourly

Webcam view of Atlantic Ocean shore

Elevation observations and tidal predictions for this station are reported to NGVD 1929. To convert data to NAVD 1988 subtract 1.13 ft. To convert data to MHHW datum subtract 3.53 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.
MHHW is mean higher high water, which is a site-specific datum determined by averaging the highest of the 2 high 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.
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

Gage Photo

 

This station managed by the NY Water Science Center, Coram.

Available Parameters Available Period
All 18 Available Parameters for this site
  
00003 Sampling depth, monitor 2016-08-13  2016-12-11
00010 Temperature, water, monitor 2007-10-01  2016-12-11
00020 Temperature, air 2016-08-13  2016-12-11
00036 Wind direction 2016-08-13  2016-12-11
00045 Precipitation 2016-08-13  2016-12-11
00052 Relative humidity 2016-08-13  2016-12-11
00095 Specific cond at 25C, monitor 2007-10-01  2016-12-11
00300 Dissolved oxygen, monitor 2007-10-01  2016-12-11
61727 Wind gust speed 2016-08-13  2016-12-11
61729 Wind gust direction 2016-08-13  2016-12-11
62361 Chlorophyll, in situ, monitor 2007-10-01  2016-12-11
62608 Solar radiation down 2016-08-13  2016-12-11
62619 Elevation, ocean/est 2007-10-01  2016-12-11
62619 Elevation, ocean/est, tidal prediction 2016-08-13  2016-12-12
63680 Turbidity, Form Neph, monitor 2007-10-01  2016-12-11
75969 BarometricPressUncor 2016-08-13  2016-12-11
82127 Wind speed 2016-08-13  2016-12-11
90860 Salinity, at 25C, monitor 2007-10-01  2016-12-11

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


Sampling depth, feet, monitor

Most recent instantaneous value: 9.5   12-11-2016   07:12 EST
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Temperature, water, degrees Celsius, monitor

Most recent instantaneous value: 5.8   12-11-2016   07:12 EST
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Temperature, air, degrees Celsius

Most recent instantaneous value: -1.2   12-11-2016   07:18 EST
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Wind direction, degrees clockwise from true north

Most recent instantaneous value: 344   12-11-2016   07:06 EST
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Precipitation, total, inches

Most recent instantaneous value: 0.00   12-11-2016   07:06 EST
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Relative humidity, percent

Most recent instantaneous value: 62.0   12-11-2016   07:18 EST
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Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius, monitor

Most recent instantaneous value: 49,300   12-11-2016   07:12 EST
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Dissolved oxygen, water, unfiltered, milligrams per liter, monitor

Most recent instantaneous value: 9.5   12-11-2016   07:12 EST
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Wind gust speed, air, knots

Most recent instantaneous value: 5.3   12-11-2016   07:18 EST
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Wind gust direction, air, degrees clockwise from true north

Most recent instantaneous value: 317   12-11-2016   07:18 EST
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Chlorophyll, total, water, fluorometric, 650-700 nanometers, in situ sensor, micrograms per liter, monitor

Most recent instantaneous value: 5.3   12-11-2016   07:12 EST
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Total solar radiation (direct + diffuse radiation on a horizontal surface), watts per square meter

Most recent instantaneous value: 12   12-11-2016   07:18 EST
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Estuary or ocean water surface elevation above NGVD 1929, feet

Most recent instantaneous value: 1.95   12-11-2016   07:06 EST
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Estuary or ocean water surface elevation above NGVD 1929, feet, tidal prediction

Most recent instantaneous value: -1.82   12-12-2016   23:54 EST
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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: 2.8   12-11-2016   07:12 EST
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Barometric pressure, not corrected to sea level, millibars

Most recent instantaneous value: 1,034.5   12-11-2016   07:18 EST
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Wind speed, knots

Most recent instantaneous value: 3.5   12-11-2016   07:06 EST
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Salinity, water, unfiltered, practical salinity units at 25 degrees Celsius, monitor

Most recent instantaneous value: 32.2   12-11-2016   07:12 EST
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