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* IMPORTANT: Next Generation Station Page

USGS 02246500 ST. JOHNS RIVER AT JACKSONVILLE, FL

PROVISIONAL DATA SUBJECT TO REVISION

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This gage is monitored in cooperation with:
Link to the St. Johns River Water Management District.
St. Johns River Water Management District
Link to the National Groundwater and Streamflow Information Program
National Groundwater and Streamflow Information Program.
Link to the US Army Corps of Engineers
Data are tidally affected -- Astronomical tides cause significant cycles of approximately 24.84 hours at this site. Because a different portion of the 24.84-hour tidal cycle is averaged in successive daily (24-hour) computations, a systematic secondary oscillation, unrelated to basin hydrology and having a period of about two weeks may be apparent in daily data.

REMARKS.--Computed discharge at this station may differ from individual measurements because of changes in tidal influence, wind, or other factors.

Available Parameters Available Period
All 8 Available Parameters for this site
  
00010 Temperature, water 2015-10-29  2019-07-17
00060 Discharge 1996-10-09  2019-07-17
00065 Gage height 2007-10-01  2019-07-17
00095 Specific cond at 25C 2015-10-29  2019-07-17
00480 Salinity 2015-10-29  2019-07-17
63160 Stream level, NAVD 2010-10-01  2019-07-17
72137 Discharge,tide fltrd 2007-10-01  2019-07-09
72254 Sensor velocity [X Velocity] 2018-05-24  2019-07-17

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End date
 

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


Temperature, water, degrees Celsius

Most recent instantaneous value: 31.1 07-17-2019   19:00 EDT
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Discharge, cubic feet per second

Most recent instantaneous value: 112000 07-17-2019   19:00 EDT
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Daily discharge, cubic feet per second -- statistics for Jul 17 based on 28 water years of record more
Min
(2015)
25th
percen-
tile
Median Mean 75th
percen-
tile
Max
(1974)
Most Recent
Instantaneous
Value Jul 17
-10900 -3010.00 2860 7110 17200 35800 112000


Gage height, feet

Most recent instantaneous value: 10.39 07-17-2019   19:00 EDT
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Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius

Most recent instantaneous value: 6150 07-17-2019   19:00 EDT
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Salinity, water, unfiltered, parts per thousand

Most recent instantaneous value: 3.3 07-17-2019   19:00 EDT
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Stream water level elevation above NAVD 1988, in feet

Most recent instantaneous value: -0.69 07-17-2019   19:00 EDT
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Water velocity reading from field sensor, feet per second, [X Velocity]

Most recent instantaneous value: 2.42 07-17-2019   19:00 EDT
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