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ICE EFFECTS ON STREAMFLOW - During winter, ice formation may cause stage and discharge values to appear higher than expected. Ice effects may be minor (occurring only at night and early morning) with baseline flows obvious, or the effects may be major (stage constantly increases over several days or weeks) resulting in greatly erroneous discharge. Streamgages experiencing minor ice conditions will continue to display stage and discharge values to enable users to estimate the approximate base-line stage and discharge. Streamgages experiencing major ice conditions will have the discharge record temporarily disabled to prevent use of erroneous discharge values. The discharge record will resume when it is determined that ice conditions are no longer present. Daily mean discharges during periods of ice effect will be estimated after detailed data analysis.
* IMPORTANT: Next Generation Station Page

USGS 01184000 CONNECTICUT RIVER AT THOMPSONVILLE, CT

PROVISIONAL DATA SUBJECT TO REVISION

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Station operated in cooperation with the Connecticut Department of Energy & Environmental Protection.
Boating safety tips
This station managed by the East Hartford CT Field Office.

Available Parameters Available Period
  
2019-08-02  2020-02-21
1990-10-01  2020-02-21
2007-10-01  2020-02-21
2019-08-02  2020-02-21
2017-02-21  2020-02-21
2018-04-03  2019-12-30
2017-02-21  2018-04-13
2019-08-02  2020-02-21
2019-10-25  2020-02-21
2019-08-02  2020-02-21
2020-01-31  2020-02-21







 (7)
 

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


Temperature, water, degrees Celsius

Most recent instantaneous value: 1.2 02-21-2020   16:00 EST
Graph of  Temperature, water, degrees Celsius

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Discharge, cubic feet per second

Most recent instantaneous value: 12800 02-21-2020   16:30 EST
Graph of  Discharge, cubic feet per second

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Daily discharge, cubic feet per second -- statistics for Feb 21 based on 91 water years of record more
Min
(1977)
25th
percen-
tile
Median Most Recent
Instantaneous
Value Feb 21
Mean 75th
percen-
tile
Max
(1981)
4330 8430 11200 12800 13600 15500 69600


Gage height, feet

Most recent instantaneous value: 8.92 02-21-2020   16:30 EST
Graph of  Gage height, feet

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

Most recent instantaneous value: 171 02-21-2020   16:00 EST
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Dissolved oxygen, water, unfiltered, milligrams per liter

Most recent instantaneous value: 15.1 02-21-2020   16:00 EST
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pH, water, unfiltered, field, standard units

Most recent instantaneous value: 7.2 02-21-2020   16:00 EST
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Dissolved organic matter fluorescence (fDOM), water, in situ, concentration estimated from reference material, micrograms per liter as quinine sulfate equivalents (QSE)

Most recent instantaneous value: 22.45 02-21-2020   16:00 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)

Most recent instantaneous value: 1.4 02-21-2020   16:00 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)

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Nitrate plus nitrite, water, in situ, milligrams per liter as nitrogen, Nitrate Sensor

Most recent instantaneous value: 0.43 02-21-2020   16:00 EST
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