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Hydrograph River at a Glance Download
Connecticut River at Thompsonville Stage (ft)Flow (kcfs)Observed: -1.22 ft at 6:15PM Mar 24, 2015Observed: -1.22 ft at 6:30PM Mar 24, 2015Observed: -1.23 ft at 6:45PM Mar 24, 2015Observed: -1.24 ft at 7:00PM Mar 24, 2015Observed: -1.24 ft at 7:15PM Mar 24, 2015Observed: -1.25 ft at 7:30PM Mar 24, 2015Observed: -1.25 ft at 7:45PM Mar 24, 2015Observed: -1.25 ft at 8:00PM Mar 24, 2015Observed: -1.25 ft at 8:15PM Mar 24, 2015Observed: -1.25 ft at 8:30PM Mar 24, 2015Observed: -1.24 ft at 8:45PM Mar 24, 2015Observed: -1.25 ft at 9:00PM Mar 24, 2015Observed: -1.25 ft at 9:15PM Mar 24, 2015Observed: -1.24 ft at 9:30PM Mar 24, 2015Observed: -1.24 ft at 9:45PM Mar 24, 2015Observed: -1.24 ft at 10:00PM Mar 24, 2015Observed: -1.24 ft at 10:15PM Mar 24, 2015Observed: -1.25 ft at 10:30PM Mar 24, 2015Observed: -1.25 ft at 10:45PM Mar 24, 2015Observed: -1.25 ft at 11:00PM Mar 24, 2015Observed: -1.25 ft at 11:15PM Mar 24, 2015Observed: -1.25 ft at 11:16PM Mar 24, 2015Observed: -1.25 ft at 11:30PM Mar 24, 2015Observed: -1.25 ft at 11:45PM Mar 24, 2015Observed: -1.25 ft at 12:00AM Mar 25, 2015Observed: -1.26 ft at 12:15AM Mar 25, 2015Observed: -1.26 ft at 12:30AM Mar 25, 2015Observed: -1.26 ft at 12:45AM Mar 25, 2015Observed: -1.25 ft at 1:00AM Mar 25, 2015Observed: -1.26 ft at 1:15AM Mar 25, 2015Observed: -1.25 ft at 1:30AM Mar 25, 2015Observed: -1.25 ft at 1:45AM Mar 25, 2015Observed: -1.25 ft at 2:00AM Mar 25, 2015Observed: -1.24 ft at 2:15AM Mar 25, 2015Observed: -1.24 ft at 2:30AM Mar 25, 2015Observed: -1.23 ft at 2:45AM Mar 25, 2015Observed: -1.24 ft at 3:00AM Mar 25, 2015Observed: -1.23 ft at 3:15AM Mar 25, 2015Observed: -1.22 ft at 3:30AM Mar 25, 2015Observed: -1.23 ft at 3:45AM Mar 25, 2015Observed: -1.23 ft at 4:00AM Mar 25, 2015Observed: -1.23 ft at 4:15AM Mar 25, 2015Observed: -1.23 ft at 4:30AM Mar 25, 2015Observed: -1.23 ft at 4:45AM Mar 25, 2015Observed: -1.22 ft at 5:00AM Mar 25, 2015Observed: -1.22 ft at 5:15AM Mar 25, 2015Observed: -1.22 ft at 5:30AM Mar 25, 2015Observed: -1.22 ft at 5:45AM Mar 25, 2015Observed: -1.22 ft at 6:00AM Mar 25, 2015Observed: -1.22 ft at 6:15AM Mar 25, 2015Observed: -1.22 ft at 6:30AM Mar 25, 2015Observed: -1.22 ft at 6:45AM Mar 25, 2015Observed: -1.21 ft at 7:00AM Mar 25, 2015Observed: -1.22 ft at 7:15AM Mar 25, 2015Observed: -1.21 ft at 7:30AM Mar 25, 2015Observed: -1.21 ft at 7:45AM Mar 25, 2015Observed: -1.21 ft at 8:00AM Mar 25, 2015Observed: -1.22 ft at 8:15AM Mar 25, 2015Observed: -1.22 ft at 8:30AM Mar 25, 2015Observed: -1.23 ft at 8:45AM Mar 25, 2015Observed: -1.24 ft at 9:00AM Mar 25, 2015Observed: -1.24 ft at 9:15AM Mar 25, 2015Observed: -1.25 ft at 9:30AM Mar 25, 2015Observed: -1.25 ft at 9:45AM Mar 25, 2015Observed: -1.26 ft at 10:00AM Mar 25, 2015Observed: -1.27 ft at 10:15AM Mar 25, 2015Observed: -1.27 ft at 10:30AM Mar 25, 2015Observed: -1.27 ft at 10:45AM Mar 25, 2015Observed: -1.27 ft at 11:00AM Mar 25, 2015Observed: -1.27 ft at 11:15AM Mar 25, 2015Observed: -1.28 ft at 11:30AM Mar 25, 2015Observed: -1.29 ft at 11:45AM Mar 25, 2015Observed: -1.28 ft at 12:00PM Mar 25, 2015Observed: -1.29 ft at 12:15PM Mar 25, 2015Observed: -1.29 ft at 12:30PM Mar 25, 2015Observed: -1.3 ft at 12:45PM Mar 25, 2015Observed: -1.3 ft at 1:00PM Mar 25, 2015Observed: -1.3 ft at 1:15PM Mar 25, 2015Observed: -1.31 ft at 1:30PM Mar 25, 2015Observed: -1.31 ft at 1:45PM Mar 25, 2015Observed: -1.33 ft at 2:00PM Mar 25, 2015Observed: -1.33 ft at 2:15PM Mar 25, 2015Observed: -1.33 ft at 2:30PM Mar 25, 2015Observed: -1.33 ft at 2:45PM Mar 25, 2015Observed: -1.34 ft at 3:00PM Mar 25, 2015Observed: -1.34 ft at 3:15PM Mar 25, 2015Observed: -1.34 ft at 3:30PM Mar 25, 2015Observed: -1.36 ft at 3:45PM Mar 25, 2015Observed: -1.36 ft at 4:00PM Mar 25, 2015Observed: -1.36 ft at 4:15PM Mar 25, 2015Observed: -1.37 ft at 4:30PM Mar 25, 2015Observed: -1.37 ft at 4:45PM Mar 25, 2015Observed: -1.36 ft at 5:00PM Mar 25, 2015Observed: -1.36 ft at 5:15PM Mar 25, 2015Observed: -1.37 ft at 5:30PM Mar 25, 2015Observed: -1.37 ft at 5:31PM Mar 25, 2015Observed: -1.36 ft at 5:45PM Mar 25, 2015Observed: -1.37 ft at 6:00PM Mar 25, 2015Observed: -1.37 ft at 6:15PM Mar 25, 2015Observed: -1.37 ft at 6:30PM Mar 25, 2015Observed: -1.36 ft at 6:45PM Mar 25, 2015Observed: -1.37 ft at 7:00PM Mar 25, 2015Observed: -1.36 ft at 7:15PM Mar 25, 2015Observed: -1.36 ft at 7:30PM Mar 25, 2015Observed: -1.35 ft at 7:45PM Mar 25, 2015Observed: -1.35 ft at 8:00PM Mar 25, 2015Observed: -1.34 ft at 8:15PM Mar 25, 2015Observed: -1.35 ft at 8:30PM Mar 25, 2015Observed: -1.35 ft at 8:45PM Mar 25, 2015Observed: -1.35 ft at 9:00PM Mar 25, 2015Observed: -1.34 ft at 9:15PM Mar 25, 2015Observed: -1.35 ft at 9:30PM Mar 25, 2015Observed: -1.35 ft at 9:45PM Mar 25, 2015Observed: -1.35 ft at 10:00PM Mar 25, 2015Observed: -1.35 ft at 10:15PM Mar 25, 2015Observed: -1.36 ft at 10:30PM Mar 25, 2015Observed: -1.36 ft at 10:45PM Mar 25, 2015Observed: -1.36 ft at 11:00PM Mar 25, 2015Observed: -1.37 ft at 11:15PM Mar 25, 2015Observed: -1.37 ft at 11:30PM Mar 25, 2015Observed: -1.37 ft at 11:31PM Mar 25, 2015Observed: -1.37 ft at 11:45PM Mar 25, 2015Observed: -1.38 ft at 12:00AM Mar 26, 2015Observed: -1.38 ft at 12:15AM Mar 26, 2015Observed: -1.38 ft at 12:30AM Mar 26, 2015Observed: -1.39 ft at 12:45AM Mar 26, 2015Observed: -1.39 ft at 1:00AM Mar 26, 2015Observed: -1.4 ft at 1:15AM Mar 26, 2015Observed: -1.41 ft at 1:30AM Mar 26, 2015Observed: -1.42 ft at 1:45AM Mar 26, 2015Observed: -1.43 ft at 2:00AM Mar 26, 2015Observed: -1.44 ft at 2:15AM Mar 26, 2015Observed: -1.45 ft at 2:30AM Mar 26, 2015Observed: -1.46 ft at 2:45AM Mar 26, 2015Observed: -1.46 ft at 3:00AM Mar 26, 2015Observed: -1.47 ft at 3:15AM Mar 26, 2015Observed: -1.47 ft at 3:30AM Mar 26, 2015Observed: -1.48 ft at 3:45AM Mar 26, 2015Observed: -1.49 ft at 4:00AM Mar 26, 2015Observed: -1.5 ft at 4:15AM Mar 26, 2015Observed: -1.5 ft at 4:30AM Mar 26, 2015Observed: -1.51 ft at 4:45AM Mar 26, 2015Observed: -1.52 ft at 5:00AM Mar 26, 2015Observed: -1.52 ft at 5:15AM Mar 26, 2015Observed: -1.53 ft at 5:30AM Mar 26, 2015Observed: -1.53 ft at 5:45AM Mar 26, 2015Observed: -1.53 ft at 6:00AM Mar 26, 2015Observed: -1.55 ft at 6:15AM Mar 26, 2015Observed: -1.54 ft at 6:30AM Mar 26, 2015Observed: -1.55 ft at 6:45AM Mar 26, 2015Observed: -1.55 ft at 7:00AM Mar 26, 2015Observed: -1.55 ft at 7:15AM Mar 26, 2015Observed: -1.54 ft at 7:30AM Mar 26, 2015Observed: -1.55 ft at 7:45AM Mar 26, 2015Observed: -1.56 ft at 8:00AM Mar 26, 2015Observed: -1.56 ft at 8:15AM Mar 26, 2015Observed: -1.57 ft at 8:30AM Mar 26, 2015Observed: -1.57 ft at 8:45AM Mar 26, 2015Observed: -1.58 ft at 9:00AM Mar 26, 2015Observed: -1.58 ft at 9:15AM Mar 26, 2015Observed: -1.58 ft at 9:30AM Mar 26, 2015Observed: -1.59 ft at 9:45AM Mar 26, 2015Observed: -1.59 ft at 10:00AM Mar 26, 2015Observed: -1.59 ft at 10:15AM Mar 26, 2015Observed: -1.59 ft at 10:30AM Mar 26, 2015Observed: -1.59 ft at 10:45AM Mar 26, 2015Observed: -1.58 ft at 11:00AM Mar 26, 2015Observed: -1.58 ft at 11:15AM Mar 26, 2015Observed: -1.58 ft at 11:30AM Mar 26, 2015Observed: -1.57 ft at 11:45AM Mar 26, 2015Observed: -1.57 ft at 12:00PM Mar 26, 2015Observed: -1.57 ft at 12:15PM Mar 26, 2015Observed: -1.56 ft at 12:30PM Mar 26, 2015Observed: -1.55 ft at 12:45PM Mar 26, 2015Observed: -1.55 ft at 1:00PM Mar 26, 2015Observed: -1.55 ft at 1:15PM Mar 26, 2015Observed: -1.54 ft at 1:30PM Mar 26, 2015Observed: -1.54 ft at 1:45PM Mar 26, 2015Observed: -1.53 ft at 2:00PM Mar 26, 2015Observed: -1.54 ft at 2:15PM Mar 26, 2015Observed: -1.53 ft at 2:30PM Mar 26, 2015Observed: -1.52 ft at 2:45PM Mar 26, 2015Observed: -1.52 ft at 3:00PM Mar 26, 2015Observed: -1.5 ft at 3:15PM Mar 26, 2015Observed: -1.5 ft at 3:30PM Mar 26, 2015Observed: -1.49 ft at 3:45PM Mar 26, 2015Observed: -1.47 ft at 4:00PM Mar 26, 2015Observed: -1.46 ft at 4:15PM Mar 26, 2015Observed: -1.45 ft at 4:30PM Mar 26, 2015Observed: -1.45 ft at 4:45PM Mar 26, 2015Observed: -1.43 ft at 5:00PM Mar 26, 2015Observed: -1.42 ft at 5:15PM Mar 26, 2015Observed: -1.41 ft at 5:30PM Mar 26, 2015Observed: -1.41 ft at 5:31PM Mar 26, 2015Observed: -1.41 ft at 5:45PM Mar 26, 2015Observed: -1.39 ft at 6:00PM Mar 26, 2015Observed: -1.39 ft at 6:15PM Mar 26, 2015Observed: -1.38 ft at 6:30PM Mar 26, 2015Observed: -1.37 ft at 6:45PM Mar 26, 2015Observed: -1.36 ft at 7:00PM Mar 26, 2015Observed: -1.35 ft at 7:15PM Mar 26, 2015Observed: -1.35 ft at 7:30PM Mar 26, 2015Observed: -1.34 ft at 7:45PM Mar 26, 2015Observed: -1.33 ft at 8:00PM Mar 26, 2015Observed: -1.32 ft at 8:15PM Mar 26, 2015Observed: -1.31 ft at 8:30PM Mar 26, 2015Observed: -1.32 ft at 8:45PM Mar 26, 2015Observed: -1.31 ft at 9:00PM Mar 26, 2015Observed: -1.31 ft at 9:15PM Mar 26, 2015Observed: -1.31 ft at 9:30PM Mar 26, 2015Observed: -1.3 ft at 9:45PM Mar 26, 2015Observed: -1.3 ft at 10:00PM Mar 26, 2015Observed: -1.29 ft at 10:15PM Mar 26, 2015Observed: -1.28 ft at 10:30PM Mar 26, 2015Observed: -1.27 ft at 10:45PM Mar 26, 2015Observed: -1.26 ft at 11:00PM Mar 26, 2015Observed: -1.26 ft at 11:15PM Mar 26, 2015Observed: -1.25 ft at 11:30PM Mar 26, 2015Observed: -1.23 ft at 11:45PM Mar 26, 2015Observed: -1.22 ft at 12:00AM Mar 27, 2015Observed: -1.22 ft at 12:15AM Mar 27, 2015Observed: -1.21 ft at 12:30AM Mar 27, 2015Observed: -1.2 ft at 12:45AM Mar 27, 2015Observed: -1.19 ft at 1:00AM Mar 27, 2015Observed: -1.18 ft at 1:15AM Mar 27, 2015Observed: -1.17 ft at 1:30AM Mar 27, 2015Observed: -1.17 ft at 1:45AM Mar 27, 2015Observed: -1.16 ft at 2:00AM Mar 27, 2015Observed: -1.15 ft at 2:15AM Mar 27, 2015Observed: -1.15 ft at 2:30AM Mar 27, 2015Observed: -1.14 ft at 2:45AM Mar 27, 2015Observed: -1.13 ft at 3:00AM Mar 27, 2015Observed: -1.14 ft at 3:15AM Mar 27, 2015Observed: -1.14 ft at 3:30AM Mar 27, 2015Observed: -1.14 ft at 3:45AM Mar 27, 2015Observed: -1.14 ft at 4:00AM Mar 27, 2015Observed: -1.14 ft at 4:15AM Mar 27, 2015Observed: -1.13 ft at 4:30AM Mar 27, 2015Observed: -1.13 ft at 4:45AM Mar 27, 2015Observed: -1.12 ft at 5:00AM Mar 27, 2015Observed: -1.12 ft at 5:15AM Mar 27, 2015Observed: -1.12 ft at 5:30AM Mar 27, 2015Observed: -1.12 ft at 5:31AM Mar 27, 2015Observed: -1.11 ft at 5:45AM Mar 27, 2015Observed: -1.11 ft at 6:00AM Mar 27, 2015Observed: -1.1 ft at 6:15AM Mar 27, 2015Observed: -1.1 ft at 6:30AM Mar 27, 2015Observed: -1.1 ft at 6:45AM Mar 27, 2015Observed: -1.1 ft at 7:00AM Mar 27, 2015Observed: -1.09 ft at 7:15AM Mar 27, 2015Observed: -1.09 ft at 7:30AM Mar 27, 2015Observed: -1.08 ft at 7:45AM Mar 27, 2015Observed: -1.07 ft at 8:00AM Mar 27, 2015Observed: -1.07 ft at 8:15AM Mar 27, 2015Observed: -1.07 ft at 8:30AM Mar 27, 2015Observed: -1.07 ft at 8:45AM Mar 27, 2015Observed: -1.06 ft at 9:00AM Mar 27, 2015Observed: -1.06 ft at 9:15AM Mar 27, 2015Observed: -1.06 ft at 9:30AM Mar 27, 2015Observed: -1.06 ft at 9:45AM Mar 27, 2015Observed: -1.06 ft at 10:00AM Mar 27, 2015Observed: -1.05 ft at 10:15AM Mar 27, 2015Observed: -1.05 ft at 10:30AM Mar 27, 2015Observed: -1.04 ft at 10:45AM Mar 27, 2015Observed: -1.04 ft at 11:00AM Mar 27, 2015Observed: -1.04 ft at 11:15AM Mar 27, 2015Observed: -1.04 ft at 11:30AM Mar 27, 2015Observed: -1.03 ft at 11:45AM Mar 27, 2015Observed: -1.02 ft at 12:00PM Mar 27, 2015Observed: -1.01 ft at 12:15PM Mar 27, 2015Observed: -1 ft at 12:30PM Mar 27, 2015Observed: -0.99 ft at 12:45PM Mar 27, 2015Observed: -0.99 ft at 1:00PM Mar 27, 2015Observed: -0.98 ft at 1:15PM Mar 27, 2015Observed: -0.97 ft at 1:30PM Mar 27, 2015Observed: -0.95 ft at 1:45PM Mar 27, 2015Observed: -0.94 ft at 2:00PM Mar 27, 2015Observed: -0.94 ft at 2:15PM Mar 27, 2015Observed: -0.92 ft at 2:30PM Mar 27, 2015Observed: -0.92 ft at 2:45PM Mar 27, 2015Observed: -0.91 ft at 3:00PM Mar 27, 2015Observed: -0.9 ft at 3:15PM Mar 27, 2015Observed: -0.89 ft at 3:30PM Mar 27, 2015Observed: -0.89 ft at 3:45PM Mar 27, 2015Observed: -0.87 ft at 4:00PM Mar 27, 2015Observed: -0.86 ft at 4:15PM Mar 27, 2015Observed: -0.85 ft at 4:30PM Mar 27, 2015Observed: -0.84 ft at 4:45PM Mar 27, 2015Observed: -0.82 ft at 5:00PM Mar 27, 2015Observed: -0.8 ft at 5:15PM Mar 27, 2015Observed: -0.8 ft at 5:30PM Mar 27, 2015Observed: -0.79 ft at 5:45PM Mar 27, 2015Forecast: -0.7 ft 8:00PM Mar 27, 2015Forecast: -0.6 ft 2:00AM Mar 28, 2015Forecast: -0.7 ft 8:00AM Mar 28, 2015Forecast: -0.6 ft 2:00PM Mar 28, 2015Forecast: -0.3 ft 8:00PM Mar 28, 2015Forecast: -0.1 ft 2:00AM Mar 29, 2015Highest Forecast: 0 ft 8:00AM Mar 29, 2015Highest Forecast: 0 ft 2:00PM Mar 29, 2015Highest Forecast: 0 ft 8:00PM Mar 29, 2015Forecast: -0.1 ft 2:00AM Mar 30, 2015Forecast: -0.2 ft 8:00AM Mar 30, 2015USGS--Water Resources of the United StatesTMVC3(plotting HGIRG) Graph Created (6:01PM Mar 27, 2015)ObservedForecast (issued 11:14AM Mar 27)Latest observed value: -0.79 ft at 5:45 PM EDT 27-Mar-2015. Flood Stage is 5 ft
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About this graph
Tabular Data (UTC)
Tabular Data (EDT)
XML Data
RSS Files
Datum: NGVD29
Metadata
NOTE: Forecasts for the Connecticut River at Thompsonville are issued routinely year-round.
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Upstream Gauge - at Springfield Upstream Gauge Downstream Gauge Downstream Gauge - at Hartford
Flood Categories (in feet)
Major Flood Stage: 9
Moderate Flood Stage: 7
Flood Stage: 5
Action Stage: 4
Low Stage (in feet): 0

Historic Crests
(1) 16.60 ft on 03/20/1936
(2) 14.40 ft on 07/23/1938
(3) 10.93 ft on 08/19/1955
(4) 10.80 ft on 05/31/1984
(5) 10.47 ft on 04/20/1933
Show More Historic Crests

(P): Preliminary values subject to further review.

Recent Crests
(1) 5.66 ft on 04/17/2014
(2) 6.05 ft on 09/08/2011
(3) 7.82 ft on 08/30/2011
(4) 5.35 ft on 04/18/2011
(5) 5.46 ft on 04/14/2011
Show More Recent Crests

(P): Preliminary values subject to further review.

Low Water Records
Currently none available.

For more information on your flood risk go to www.floodsmart.gov.

Zoom Level:16
KML Image
Gauge LocationGauge Map Marker
Disclaimer
Latitude/Longitude Disclaimer: The gauge location shown in the above map is the approximate location based on the latitude/longitude coordinates provided to the NWS by the gauge owner.
Flood Impacts & Photos Collapse
If you notice any errors in the below information, please contact our Webmaster
8 Significant and widespread flooding along the river can be expected from the Massachusetts towns of Agawam and Longmeadow, through the northern Connecticut towns of Suffield and Enfield.
7 Flooding will become more widespread along the Connecticut River from the Massachusetts towns of Agawam and Longmeadow, through the northern Connecticut towns of Suffield and Enfield.
6 Flooding impacts low lying areas along the Connecticut River from the Massachusetts towns of Agawam and Longmeadow, through the northern Connecticut towns of Suffield and Enfield.
5 Lowland flooding will begin along the Connecticut River near Thompsonville.
About This Location Collapse

Latitude: 41.987222° N, Longitude: 72.605833° W, Horizontal Datum: NAD27

River Stage
Reference Frame
Gauge Height Flood Stage Uses
NWS stage 0 ft 5 ft Interpreting hydrographs and NWS watch, warnings, and forecasts, and inundation maps
Vertical Datum Elevation
(gauge height = 0)
Elevation
(gauge height = flood stage)
Elevation information source
NAVD88 Not Available Not Available Survey grade GPS equipment, FEMA flood plain maps, newer USGS topographic maps
NGVD 29 38.48 43.48 Older USGS topographic maps, NGVD29 benchmarks
MSL Not Available Not Available Older USGS topographic maps, MSL benchmarks
Other NULL NULL  

Current/Historical Observations:

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The National Weather Service prepares its forecasts and other services in collaboration with agencies like the US Geological Survey, US Bureau of Reclamation, US Army Corps of Engineers, Natural Resource Conservation Service, National Park Service, ALERT Users Group, Bureau of Indian Affairs, and many state and local emergency managers across the country. For details, please click here.
NWS Information
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Page last modified: 12-Feb-2015 9:34 PM
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