Skip Navigation Link weather.gov  
NOAA logo - Click to go to the NOAA homepage National Weather Service NWS logo - Click to go to the NWS homepage
Advanced Hydrologic Prediction Service
Image background of Navigation bar Left Home News Organization
Navigation Bar End Cap

  

National Conditions
    Rivers
    Satellite
    Climate
    Observed Precip
    
Local Conditions
    Warnings
    Weather Forecast
    Radar

AHPS Documentation
    User Guide
    User Brochure

What is AHPS?
    Facts
    Our Partners
    
Feedback/Questions
    Provide Feedback
    Ask Questions

When flooded turn around don't drown
FloodSmart
USA.gov Official Web Portal
 

This probabilistic forecast is issued by the Northeast River Forecast Center.
tab left off Hydrograph tab right off tab left off River at a Glance tab right off tab left off Download tab right off tab left on tab right on
Experimental Short Range Forecast Uncertainty (AHPS) - External Links: Product Description Document | Customer Survey
About this graph
Forecasts for the Farmington River at Simsbury are issued routinely year-round.
Return to Area Map

Upstream Gauge - at Unionville Upstream Gauge Downstream Gauge Downstream Gauge - at Tariffville
Zoom Level:14
Flood Categories (in feet)
Major Flood Stage: 18
Moderate Flood Stage: 15
Flood Stage: 12
Action Stage: 10
Low Stage (in feet): -9999

Historic Crests
(1) 30.10 ft on 08/20/1955
(2) 22.10 ft on 10/17/1955
(3) 18.20 ft on 01/02/1949
(4) 17.80 ft on 11/05/1927
(5) 16.98 ft on 08/29/2011
Show More Historic Crests

(P): Preliminary values subject to further review.

Recent Crests
(1) 13.97 ft on 10/01/2023 (P)
(2) 14.38 ft on 09/03/2021
(3) 13.81 ft on 06/15/2013
(4) 14.23 ft on 09/09/2011
(5) 16.98 ft on 08/29/2011
Show More Recent Crests

(P): Preliminary values subject to further review.

Low Water Records
(1) 0.50 ft on 08/01/1995
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
30 Widespread catastrophic flooding occurs throughout the Valley. Follow the advice of local officials, and evacuate if asked to do so.
22 Widespread flooding will affect portions of Farmington, Avon, Simsbury, Bloomfield and East Granby. Follow the advice of local officials, and evacuate if asked to do so.
18 This is a serious flood event and will affect numerous areas along the river. Act now to protect life and property. Follow the directions of your local emergency management officials. If you are asked to evacuate do so immediately.
16 Moderate flooding occurs with numerous roads and residences affected. Evacuations may be needed along various roads in Avon and Simsbury, including Riverside Road in Simsbury. Flooding also begins to affect low lying sections of Bloomfield and East Granby. Follow the directions of emergency management officials and obey all road closures.
15 Moderate flooding begins with numerous roads and residences affected. Evacuations may be needed along various roads in Avon and Simsbury, including Riverside Road in Simsbury. Flooding also begins to affect low lying sections of Bloomfield and East Granby. Follow the directions of emergency management officials and obey all road closures.
13 Flooding affects Old Farms and Tolliston Roads in Avon, Meadow Road in Farmington, and Nod, Riverside, and Terrys Plain Roads in Simsbury. Route 315 in Simsbury is also impacted. Flooding spreads into Plantation Country Club and adjoining Town Farm Road in Simsbury. Also, flooding will approach the Paine Boathouse.
12 Flooding begins on Riverside Road in Simsbury. Flooding also begins along Old Bridge and Drake Hill Roads.

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
46 Commerce Way
Norton, MA 02766
(508) 622-3250
Ask Questions/Webmaster
Page last modified: 2-Nov-2020 7:30 PM 		Disclaimer
Credits
Glossary 		Privacy Policy
About Us
Career Opportunities