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USGS 04294413 LAKE CHAMPLAIN AT PORT HENRY NY

PROVISIONAL DATA SUBJECT TO REVISION

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> Site Information
    LOCATION.--Lat 44°03'09.9", long 73°27'12.6" referenced to North American Datum of 1983, Essex County, NY, Hydrologic Unit 04150408, on west shore at boat launch near mouth of Mill Brook and 0.5 mi north of railroad station, in Port Henry.
    PERIOD OF RECORD.--October 1997 to September 1999, April 2015 to current year.
    REVISIONS HISTORY.--Temperature data for the period Aug. 5, 2021, to Aug. 17, 2021, were revised on Feb. 28, 2023, due to incorrect data being deleted. Temperature records for the period Oct. 26, 2017 to Jan. 12, 2021 were revised on Mar. 24, 2023, after data were found outside the allowable limits.
    GAGE.--Water-stage recorder and digital weighing precipitation gage. Lake elevation record is provided in NGVD of 1929 and NAVD of 1988 datums. To convert NGVD of 1929 elevations to NAVD of 1988, subtract 0.60 ft.
    REMARKS.--Area of lake surface about 490 mi². Total volume below 92.5 ft elevation, reported by Lake Champlain Studies Center, 902.2 bil ft³.
    EXTREMES FOR PERIOD OF RECORD.--Maximum elevation, 101.90 ft above NGVD of 1929 (101.30 ft above NAVD of 1988), Apr. 4, 5, 1998; minimum, 93.23 ft above NGVD of 1929 (92.63 ft above NAVD of 1988), Oct. 16, 2016.
    EXTREMES OUTSIDE PERIOD OF RECORD.--Flood in May 2011 reached an elevation of about 103.1 ft above NGVD of 1929 (102.5 ft above NAVD of 1988), from floodmarks at mouth of Mill Brook 580 ft southeast from gage; corroborated by lake elevation record at station 04295000.
    PERIOD OF RECORD (CLIM).--April 2015 to current year.
    INSTRUMENTATION (CLIM).--Unshielded, 400 square centimeter collecting area, digital weighing precipitation gage, mounted on pedestal with top of collector 5 ft above ground.
    EXTREMES FOR PERIOD OF RECORD (CLIM).--Maximum daily precipitation, 5.36 inches, Oct. 31, 2019.
    PERIOD OF DAILY RECORD1.--WATER TEMPERATURE: October 1997 to September 1999, October 2017 to current year.
    EXTREMES FOR PERIOD OF DAILY RECORD1.--WATER TEMPERATURE: Maximum, 27.6°C, Sept. 5, 2023; minimum, 0.0°C on several days during winter periods.
    1 Water-Quality Records
> Rating Information
> Additional Site Information
This station managed by the NY Water Science Center Potsdam.

Available Parameters Available Period
  
2017-10-26  2024-11-23
2024-07-25  2024-11-23
2024-07-25  2024-11-23
2015-04-16  2024-11-23
2024-07-25  2024-11-23
2024-07-25  2024-11-23
2015-04-11  2024-11-23
2015-04-11  2024-11-23







 (7)
 
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Summary of all available data for this site
Instantaneous-data availability statement

Temperature, water, degrees Celsius, [at 93.0 ft above NGVD of 1929]
Most recent instantaneous value: 9.4 11-23-2024   03:45 EST
Graph of Temperature, water, degrees Celsius, [at 93.0 ft above NGVD of 1929]

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Wind speed, miles per hour
Most recent instantaneous value: 1.7 11-23-2024   03:45 EST
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Wind direction, degrees clockwise from true north
Most recent instantaneous value: 271 11-23-2024   03:45 EST
Graph of Wind direction, degrees clockwise from true north

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Precipitation, total, inches
Most recent instantaneous value: 0.00 11-23-2024   03:45 EST
Graph of Precipitation, total, inches

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Wind gust speed, air, miles per hour
Most recent instantaneous value: 3.10 11-23-2024   03:45 EST
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Wind gust direction, air, degrees clockwise from true north
Most recent instantaneous value: 355 11-23-2024   03:45 EST
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Lake or reservoir water surface elevation above NGVD 1929, feet
Most recent instantaneous value: 94.65 11-23-2024   03:45 EST
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Lake or reservoir water surface elevation above NAVD 1988, feet
Most recent instantaneous value: 94.05 11-23-2024   03:45 EST
Graph of Lake or reservoir water surface elevation above NAVD 1988, feet

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