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This probabilistic forecast is issued by the Northeast River Forecast Center.
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About this graph
Forecasts for the Farmington River at Unionville are issued routinely year-round.
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Downstream Gauge Downstream Gauge - at Simsbury
Zoom Level:16
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) 12.57 ft on 01/10/2024
(2) 13.28 ft on 12/18/2023
(3) 12.87 ft on 09/29/2023
(4) 14.01 ft on 09/02/2021
(5) 12.77 ft on 09/08/2011
Show More Recent Crests

(P): Preliminary values subject to further review.

Low Water Records
(1) 2.50 ft on 07/10/1985
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Gauge LocationGauge Map Marker
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 Meadow Road and Town Farm Road in Farmington. In addition, low lying areas along Route 4 will experience flooding.
14 Flooding is expected to spread across Meadow Road 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.

Other Real-time and/or Archive Data Sources:

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.

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
National Weather Service
Boston / Norton Weather Forecast Office
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Norton, MA 02766
(508) 622-3250
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Page last modified: 2-Nov-2020 7:30 PM
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