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Hydrograph River at a Glance Download
Farmington River at Unionville Stage (ft)Flow (kcfs)Observed: 6.59 ft at 7:45AM Mar 31, 2020Highest Observation: 6.6 ft at 8:00AM Mar 31, 2020Observed: 6.59 ft at 8:15AM Mar 31, 2020Observed: 6.59 ft at 8:30AM Mar 31, 2020Observed: 6.59 ft at 8:45AM Mar 31, 2020Observed: 6.59 ft at 9:00AM Mar 31, 2020Observed: 6.58 ft at 9:15AM Mar 31, 2020Observed: 6.58 ft at 9:30AM Mar 31, 2020Observed: 6.58 ft at 9:45AM Mar 31, 2020Observed: 6.58 ft at 10:00AM Mar 31, 2020Observed: 6.58 ft at 10:15AM Mar 31, 2020Observed: 6.57 ft at 10:30AM Mar 31, 2020Observed: 6.57 ft at 10:45AM Mar 31, 2020Observed: 6.57 ft at 11:00AM Mar 31, 2020Observed: 6.57 ft at 11:15AM Mar 31, 2020Observed: 6.56 ft at 11:30AM Mar 31, 2020Observed: 6.56 ft at 11:45AM Mar 31, 2020Observed: 6.56 ft at 12:00PM Mar 31, 2020Observed: 6.56 ft at 12:15PM Mar 31, 2020Observed: 6.56 ft at 12:30PM Mar 31, 2020Observed: 6.56 ft at 12:31PM Mar 31, 2020Observed: 6.55 ft at 12:45PM Mar 31, 2020Observed: 6.55 ft at 1:00PM Mar 31, 2020Observed: 6.55 ft at 1:15PM Mar 31, 2020Observed: 6.54 ft at 1:30PM Mar 31, 2020Observed: 6.55 ft at 1:45PM Mar 31, 2020Observed: 6.54 ft at 2:00PM Mar 31, 2020Observed: 6.54 ft at 2:15PM Mar 31, 2020Observed: 6.54 ft at 2:30PM Mar 31, 2020Observed: 6.54 ft at 2:45PM Mar 31, 2020Observed: 6.53 ft at 3:00PM Mar 31, 2020Observed: 6.53 ft at 3:15PM Mar 31, 2020Observed: 6.53 ft at 3:30PM Mar 31, 2020Observed: 6.53 ft at 3:45PM Mar 31, 2020Observed: 6.53 ft at 4:00PM Mar 31, 2020Observed: 6.52 ft at 4:15PM Mar 31, 2020Observed: 6.52 ft at 4:30PM Mar 31, 2020Observed: 6.52 ft at 4:45PM Mar 31, 2020Observed: 6.52 ft at 5:00PM Mar 31, 2020Observed: 6.51 ft at 5:15PM Mar 31, 2020Observed: 6.52 ft at 5:30PM Mar 31, 2020Observed: 6.51 ft at 5:45PM Mar 31, 2020Observed: 6.51 ft at 6:00PM Mar 31, 2020Observed: 6.5 ft at 6:15PM Mar 31, 2020Observed: 6.5 ft at 6:30PM Mar 31, 2020Observed: 6.5 ft at 6:45PM Mar 31, 2020Observed: 6.5 ft at 7:00PM Mar 31, 2020Observed: 6.5 ft at 7:15PM Mar 31, 2020Observed: 6.5 ft at 7:30PM Mar 31, 2020Observed: 6.49 ft at 7:45PM Mar 31, 2020Observed: 6.49 ft at 8:00PM Mar 31, 2020Observed: 6.49 ft at 8:15PM Mar 31, 2020Observed: 6.49 ft at 8:30PM Mar 31, 2020Observed: 6.48 ft at 8:45PM Mar 31, 2020Observed: 6.48 ft at 9:00PM Mar 31, 2020Observed: 6.48 ft at 9:15PM Mar 31, 2020Observed: 6.48 ft at 9:30PM Mar 31, 2020Observed: 6.47 ft at 9:45PM Mar 31, 2020Observed: 6.47 ft at 10:00PM Mar 31, 2020Observed: 6.47 ft at 10:15PM Mar 31, 2020Observed: 6.47 ft at 10:30PM Mar 31, 2020Observed: 6.46 ft at 10:45PM Mar 31, 2020Observed: 6.46 ft at 11:00PM Mar 31, 2020Observed: 6.47 ft at 11:15PM Mar 31, 2020Observed: 6.47 ft at 11:30PM Mar 31, 2020Observed: 6.47 ft at 11:45PM Mar 31, 2020Observed: 6.46 ft at 12:00AM Apr 01, 2020Observed: 6.47 ft at 12:15AM Apr 01, 2020Observed: 6.46 ft at 12:30AM Apr 01, 2020Observed: 6.46 ft at 12:31AM Apr 01, 2020Observed: 6.46 ft at 12:45AM Apr 01, 2020Observed: 6.46 ft at 1:00AM Apr 01, 2020Observed: 6.46 ft at 1:15AM Apr 01, 2020Observed: 6.46 ft at 1:30AM Apr 01, 2020Observed: 6.46 ft at 1:45AM Apr 01, 2020Observed: 6.46 ft at 2:00AM Apr 01, 2020Observed: 6.45 ft at 2:15AM Apr 01, 2020Observed: 6.45 ft at 2:30AM Apr 01, 2020Observed: 6.45 ft at 2:45AM Apr 01, 2020Observed: 6.45 ft at 3:00AM Apr 01, 2020Observed: 6.44 ft at 3:15AM Apr 01, 2020Observed: 6.44 ft at 3:30AM Apr 01, 2020Observed: 6.44 ft at 3:45AM Apr 01, 2020Observed: 6.43 ft at 4:00AM Apr 01, 2020Observed: 6.43 ft at 4:15AM Apr 01, 2020Observed: 6.43 ft at 4:30AM Apr 01, 2020Observed: 6.43 ft at 4:45AM Apr 01, 2020Observed: 6.43 ft at 5:00AM Apr 01, 2020Observed: 6.42 ft at 5:15AM Apr 01, 2020Observed: 6.42 ft at 5:30AM Apr 01, 2020Observed: 6.42 ft at 5:45AM Apr 01, 2020Observed: 6.42 ft at 6:00AM Apr 01, 2020Observed: 6.41 ft at 6:15AM Apr 01, 2020Observed: 6.41 ft at 6:30AM Apr 01, 2020Observed: 6.41 ft at 6:31AM Apr 01, 2020Observed: 6.41 ft at 6:45AM Apr 01, 2020Observed: 6.41 ft at 7:00AM Apr 01, 2020Observed: 6.41 ft at 7:15AM Apr 01, 2020Observed: 6.4 ft at 7:30AM Apr 01, 2020Observed: 6.4 ft at 7:45AM Apr 01, 2020Observed: 6.4 ft at 8:00AM Apr 01, 2020Observed: 6.4 ft at 8:15AM Apr 01, 2020Observed: 6.4 ft at 8:30AM Apr 01, 2020Observed: 6.39 ft at 8:45AM Apr 01, 2020Observed: 6.39 ft at 9:00AM Apr 01, 2020Observed: 6.39 ft at 9:15AM Apr 01, 2020Observed: 6.39 ft at 9:30AM Apr 01, 2020Observed: 6.39 ft at 9:45AM Apr 01, 2020Observed: 6.38 ft at 10:00AM Apr 01, 2020Observed: 6.38 ft at 10:15AM Apr 01, 2020Observed: 6.38 ft at 10:30AM Apr 01, 2020Observed: 6.38 ft at 10:45AM Apr 01, 2020Observed: 6.38 ft at 11:00AM Apr 01, 2020Observed: 6.37 ft at 11:15AM Apr 01, 2020Observed: 6.37 ft at 11:30AM Apr 01, 2020Observed: 6.36 ft at 11:45AM Apr 01, 2020Observed: 6.37 ft at 12:00PM Apr 01, 2020Observed: 6.37 ft at 12:15PM Apr 01, 2020Observed: 6.37 ft at 12:30PM Apr 01, 2020Observed: 6.37 ft at 12:45PM Apr 01, 2020Observed: 6.36 ft at 1:00PM Apr 01, 2020Observed: 6.36 ft at 1:15PM Apr 01, 2020Observed: 6.36 ft at 1:30PM Apr 01, 2020Observed: 6.36 ft at 1:45PM Apr 01, 2020Observed: 6.36 ft at 2:00PM Apr 01, 2020Observed: 6.35 ft at 2:15PM Apr 01, 2020Observed: 6.36 ft at 2:30PM Apr 01, 2020Observed: 6.35 ft at 2:45PM Apr 01, 2020Observed: 6.34 ft at 3:00PM Apr 01, 2020Observed: 6.35 ft at 3:15PM Apr 01, 2020Observed: 6.35 ft at 3:30PM Apr 01, 2020Observed: 6.34 ft at 3:45PM Apr 01, 2020Observed: 6.34 ft at 4:00PM Apr 01, 2020Observed: 6.34 ft at 4:15PM Apr 01, 2020Observed: 6.34 ft at 4:30PM Apr 01, 2020Observed: 6.34 ft at 4:45PM Apr 01, 2020Observed: 6.34 ft at 5:00PM Apr 01, 2020Observed: 6.34 ft at 5:15PM Apr 01, 2020Observed: 6.34 ft at 5:30PM Apr 01, 2020Observed: 6.33 ft at 5:45PM Apr 01, 2020Observed: 6.33 ft at 6:00PM Apr 01, 2020Observed: 6.33 ft at 6:15PM Apr 01, 2020Observed: 6.33 ft at 6:30PM Apr 01, 2020Observed: 6.33 ft at 6:45PM Apr 01, 2020Observed: 6.32 ft at 7:00PM Apr 01, 2020Observed: 6.32 ft at 7:15PM Apr 01, 2020Observed: 6.32 ft at 7:30PM Apr 01, 2020Observed: 6.32 ft at 7:45PM Apr 01, 2020Observed: 6.32 ft at 8:00PM Apr 01, 2020Observed: 6.32 ft at 8:15PM Apr 01, 2020Observed: 6.32 ft at 8:30PM Apr 01, 2020Observed: 6.31 ft at 8:45PM Apr 01, 2020Observed: 6.32 ft at 9:00PM Apr 01, 2020Observed: 6.31 ft at 9:15PM Apr 01, 2020Observed: 6.31 ft at 9:30PM Apr 01, 2020Observed: 6.32 ft at 9:45PM Apr 01, 2020Observed: 6.31 ft at 10:00PM Apr 01, 2020Observed: 6.31 ft at 10:15PM Apr 01, 2020Observed: 6.31 ft at 10:30PM Apr 01, 2020Observed: 6.31 ft at 10:45PM Apr 01, 2020Observed: 6.31 ft at 11:00PM Apr 01, 2020Observed: 6.31 ft at 11:15PM Apr 01, 2020Observed: 6.3 ft at 11:30PM Apr 01, 2020Observed: 6.3 ft at 11:45PM Apr 01, 2020Observed: 6.3 ft at 12:00AM Apr 02, 2020Observed: 6.3 ft at 12:15AM Apr 02, 2020Observed: 6.3 ft at 12:30AM Apr 02, 2020Observed: 6.3 ft at 12:45AM Apr 02, 2020Observed: 6.3 ft at 1:00AM Apr 02, 2020Observed: 6.3 ft at 1:15AM Apr 02, 2020Observed: 6.3 ft at 1:30AM Apr 02, 2020Observed: 6.3 ft at 1:45AM Apr 02, 2020Observed: 6.3 ft at 2:00AM Apr 02, 2020Observed: 6.3 ft at 2:15AM Apr 02, 2020Observed: 6.3 ft at 2:30AM Apr 02, 2020Observed: 6.3 ft at 2:45AM Apr 02, 2020Observed: 6.3 ft at 3:00AM Apr 02, 2020Observed: 6.3 ft at 3:15AM Apr 02, 2020Observed: 6.3 ft at 3:30AM Apr 02, 2020Observed: 6.3 ft at 3:45AM Apr 02, 2020Observed: 6.29 ft at 4:00AM Apr 02, 2020Observed: 6.29 ft at 4:15AM Apr 02, 2020Observed: 6.29 ft at 4:30AM Apr 02, 2020Observed: 6.29 ft at 4:45AM Apr 02, 2020Observed: 6.29 ft at 5:00AM Apr 02, 2020Observed: 6.29 ft at 5:15AM Apr 02, 2020Observed: 6.28 ft at 5:30AM Apr 02, 2020Observed: 6.28 ft at 5:45AM Apr 02, 2020Observed: 6.28 ft at 6:00AM Apr 02, 2020Observed: 6.28 ft at 6:15AM Apr 02, 2020Observed: 6.28 ft at 6:30AM Apr 02, 2020Observed: 6.28 ft at 6:31AM Apr 02, 2020Observed: 6.27 ft at 6:45AM Apr 02, 2020Observed: 6.28 ft at 7:00AM Apr 02, 2020Observed: 6.27 ft at 7:15AM Apr 02, 2020Observed: 6.27 ft at 7:30AM Apr 02, 2020Observed: 6.27 ft at 7:45AM Apr 02, 2020Observed: 6.27 ft at 8:00AM Apr 02, 2020Observed: 6.26 ft at 8:15AM Apr 02, 2020Observed: 6.27 ft at 8:30AM Apr 02, 2020Observed: 6.26 ft at 8:45AM Apr 02, 2020Observed: 6.26 ft at 9:00AM Apr 02, 2020Observed: 6.26 ft at 9:15AM Apr 02, 2020Observed: 6.26 ft at 9:30AM Apr 02, 2020Observed: 6.26 ft at 9:45AM Apr 02, 2020Observed: 6.26 ft at 10:00AM Apr 02, 2020Observed: 6.26 ft at 10:15AM Apr 02, 2020Observed: 6.25 ft at 10:30AM Apr 02, 2020Observed: 6.26 ft at 10:45AM Apr 02, 2020Observed: 6.26 ft at 11:00AM Apr 02, 2020Observed: 6.26 ft at 11:15AM Apr 02, 2020Observed: 6.25 ft at 11:30AM Apr 02, 2020Observed: 6.25 ft at 11:45AM Apr 02, 2020Observed: 6.25 ft at 12:00PM Apr 02, 2020Observed: 6.24 ft at 12:15PM Apr 02, 2020Observed: 6.24 ft at 12:30PM Apr 02, 2020Observed: 6.24 ft at 12:31PM Apr 02, 2020Observed: 6.25 ft at 12:45PM Apr 02, 2020Observed: 6.25 ft at 1:00PM Apr 02, 2020Observed: 6.24 ft at 1:15PM Apr 02, 2020Observed: 6.24 ft at 1:30PM Apr 02, 2020Observed: 6.25 ft at 1:45PM Apr 02, 2020Observed: 6.24 ft at 2:00PM Apr 02, 2020Observed: 6.24 ft at 2:15PM Apr 02, 2020Observed: 6.24 ft at 2:30PM Apr 02, 2020Observed: 6.25 ft at 2:45PM Apr 02, 2020Observed: 6.24 ft at 3:00PM Apr 02, 2020Observed: 6.23 ft at 3:15PM Apr 02, 2020Observed: 6.23 ft at 3:30PM Apr 02, 2020Observed: 6.23 ft at 3:45PM Apr 02, 2020Observed: 6.23 ft at 4:00PM Apr 02, 2020Observed: 6.23 ft at 4:15PM Apr 02, 2020Observed: 6.23 ft at 4:30PM Apr 02, 2020Observed: 6.21 ft at 9:45PM Apr 02, 2020Observed: 6.21 ft at 10:00PM Apr 02, 2020Observed: 6.21 ft at 10:15PM Apr 02, 2020Observed: 6.21 ft at 10:30PM Apr 02, 2020Observed: 6.21 ft at 10:45PM Apr 02, 2020Observed: 6.21 ft at 11:00PM Apr 02, 2020Observed: 6.21 ft at 11:15PM Apr 02, 2020Observed: 6.21 ft at 11:30PM Apr 02, 2020Observed: 6.22 ft at 11:45PM Apr 02, 2020Observed: 6.21 ft at 12:00AM Apr 03, 2020Observed: 6.21 ft at 12:15AM Apr 03, 2020Observed: 6.21 ft at 12:30AM Apr 03, 2020Observed: 6.21 ft at 12:31AM Apr 03, 2020Observed: 6.21 ft at 12:45AM Apr 03, 2020Observed: 6.21 ft at 1:00AM Apr 03, 2020Observed: 6.21 ft at 1:15AM Apr 03, 2020Observed: 6.21 ft at 1:30AM Apr 03, 2020Observed: 6.21 ft at 1:45AM Apr 03, 2020Observed: 6.21 ft at 2:00AM Apr 03, 2020Observed: 6.21 ft at 2:15AM Apr 03, 2020Observed: 6.21 ft at 2:30AM Apr 03, 2020Observed: 6.21 ft at 2:45AM Apr 03, 2020Observed: 6.21 ft at 3:00AM Apr 03, 2020Observed: 6.21 ft at 3:15AM Apr 03, 2020Observed: 6.2 ft at 3:30AM Apr 03, 2020Observed: 6.2 ft at 3:45AM Apr 03, 2020Observed: 6.2 ft at 4:00AM Apr 03, 2020Observed: 6.21 ft at 4:15AM Apr 03, 2020Observed: 6.2 ft at 4:30AM Apr 03, 2020Observed: 6.21 ft at 4:45AM Apr 03, 2020Observed: 6.21 ft at 5:00AM Apr 03, 2020Observed: 6.21 ft at 5:15AM Apr 03, 2020Observed: 6.2 ft at 5:30AM Apr 03, 2020Observed: 6.2 ft at 5:45AM Apr 03, 2020Observed: 6.2 ft at 6:00AM Apr 03, 2020Observed: 6.2 ft at 6:15AM Apr 03, 2020Observed: 6.2 ft at 6:30AM Apr 03, 2020Observed: 6.21 ft at 6:46AM Apr 03, 2020Highest Forecast: 6.2 ft 8:00AM Apr 03, 2020Highest Forecast: 6.2 ft 2:00PM Apr 03, 2020Highest Forecast: 6.2 ft 8:00PM Apr 03, 2020Highest Forecast: 6.2 ft 2:00AM Apr 04, 2020Highest Forecast: 6.2 ft 8:00AM Apr 04, 2020Highest Forecast: 6.2 ft 2:00PM Apr 04, 2020Forecast: 6.1 ft 8:00PM Apr 04, 2020Forecast: 6.1 ft 2:00AM Apr 05, 2020Forecast: 6.1 ft 8:00AM Apr 05, 2020USGS--Water Resources of the United StatesUNVC3(plotting HGIRG) Graph Created (7:30AM Apr 3, 2020)ObservedForecast (issued 11:25AM Apr 2)Latest observed value: 6.21 ft at 6:46 AM EDT 3-Apr-2020. Flood Stage is 12 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 Farmington River at Unionville are issued routinely year-round.
Return to Area Map
Upstream Gauge - at W. Br. Nr. New Boston Upstream Gauge Downstream Gauge Downstream Gauge - at Simsbury
Flood Categories (in feet)
Major Flood Stage: 20
Moderate Flood Stage: 14
Flood Stage: 12
Action Stage: 10
Low Stage (in feet): -9999

Historic Crests
(1) 32.90 ft on 08/19/1955
(2) 18.55 ft on 08/28/2011
(3) 16.81 ft on 04/16/2007
(4) 16.57 ft on 03/23/1980
(5) 15.61 ft on 03/07/2011
Show More Historic Crests

(P): Preliminary values subject to further review.

Recent Crests
(1) 12.77 ft on 09/08/2011
(2) 18.55 ft on 08/28/2011
(3) 12.15 ft on 03/11/2011
(4) 15.61 ft on 03/07/2011
(5) 11.66 ft on 03/30/2010
Show More Recent Crests

(P): Preliminary values subject to further review.

Low Water Records
(1) 2.50 ft on 07/10/1985

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
16 The river will flood Meadows Street and Town Farm Road in Farmington. In addition, low lying areas along Route 4 will experience flooding.
14 Flooding is expected to spread across Meadows Street in the "Meadows" section of Farmington. Some low lying areas along Route 4 may also begin to experience flooding.
12 Minor flooding of lowland areas along the river is expected, and may include lowest lying homes and businesses along Route 4.
About This Location Collapse

Latitude: 41.755547° N, Longitude: 72.887042° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame
Gauge Height Flood Stage Uses
NWS stage 0 ft 12 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 29 178.20 190.20 Older USGS topographic maps, NGVD29 benchmarks
MSL Not Available Not Available Older USGS topographic maps, MSL benchmarks
Other NULL NULL  

Current/Historical Observations:

Additional Information Collapse
< Potential River Levels - Used to
Potential River Levels
Used to Estimate the Chance of Flooding and the Range of Possible River Levels
10 Day (HEFS) 7 Day (NAEFS) 7 Day (GEFS)
HEFS Ensemble NAEFS Ensemble GEFS Ensemble

Note: Use the official hydrograph at the top of this web page for river levels within the next 72 hours.

Click individual graphics to enlarge.

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Hydrologic Resources Additional Resources
Collaborative Agencies Collapse
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: 1-Mar-2019 12:35 AM
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