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
Bookmark and Share

  
 

Over 200 USGS real-time streamgages used to support NWS river forecasts and warnings are at risk of being discontinued. Click here for more information from the USGS...
Weather Forecast Office Boston, MA Northeast River Forecast Center
Flood Warning
View all valid statements/warnings
Hydrograph River at a Glance Download Weekly Chance of
Exceeding Levels		 Chance of Exceeding Levels
During Entire Period
Squannacook River at West Groton Stage (ft)Flow (kcfs)Observed: 3.26 ft at 8:45PM Jun 16, 2013Observed: 3.26 ft at 9:00PM Jun 16, 2013Observed: 3.25 ft at 9:15PM Jun 16, 2013Observed: 3.25 ft at 9:30PM Jun 16, 2013Observed: 3.24 ft at 9:45PM Jun 16, 2013Observed: 3.24 ft at 10:00PM Jun 16, 2013Observed: 3.24 ft at 10:15PM Jun 16, 2013Observed: 3.24 ft at 10:30PM Jun 16, 2013Observed: 3.23 ft at 10:45PM Jun 16, 2013Observed: 3.22 ft at 11:00PM Jun 16, 2013Observed: 3.22 ft at 11:15PM Jun 16, 2013Observed: 3.22 ft at 11:30PM Jun 16, 2013Observed: 3.21 ft at 11:45PM Jun 16, 2013Observed: 3.21 ft at 12:00AM Jun 17, 2013Observed: 3.21 ft at 12:15AM Jun 17, 2013Observed: 3.2 ft at 12:30AM Jun 17, 2013Observed: 3.2 ft at 12:45AM Jun 17, 2013Observed: 3.2 ft at 1:00AM Jun 17, 2013Observed: 3.19 ft at 1:15AM Jun 17, 2013Observed: 3.19 ft at 1:30AM Jun 17, 2013Observed: 3.18 ft at 1:45AM Jun 17, 2013Observed: 3.18 ft at 2:00AM Jun 17, 2013Observed: 3.17 ft at 2:15AM Jun 17, 2013Observed: 3.17 ft at 2:30AM Jun 17, 2013Observed: 3.17 ft at 2:45AM Jun 17, 2013Observed: 3.16 ft at 3:00AM Jun 17, 2013Observed: 3.16 ft at 3:15AM Jun 17, 2013Observed: 3.16 ft at 3:30AM Jun 17, 2013Observed: 3.16 ft at 3:45AM Jun 17, 2013Observed: 3.15 ft at 4:00AM Jun 17, 2013Observed: 3.14 ft at 4:15AM Jun 17, 2013Observed: 3.14 ft at 4:30AM Jun 17, 2013Observed: 3.14 ft at 4:45AM Jun 17, 2013Observed: 3.13 ft at 5:00AM Jun 17, 2013Observed: 3.13 ft at 5:15AM Jun 17, 2013Observed: 3.13 ft at 5:30AM Jun 17, 2013Observed: 3.12 ft at 5:45AM Jun 17, 2013Observed: 3.12 ft at 6:00AM Jun 17, 2013Observed: 3.12 ft at 6:15AM Jun 17, 2013Observed: 3.11 ft at 6:30AM Jun 17, 2013Observed: 3.11 ft at 6:45AM Jun 17, 2013Observed: 3.1 ft at 7:00AM Jun 17, 2013Observed: 3.1 ft at 7:15AM Jun 17, 2013Observed: 3.1 ft at 7:30AM Jun 17, 2013Observed: 3.1 ft at 7:45AM Jun 17, 2013Observed: 3.09 ft at 8:00AM Jun 17, 2013Observed: 3.09 ft at 8:15AM Jun 17, 2013Observed: 3.08 ft at 8:30AM Jun 17, 2013Observed: 3.08 ft at 8:45AM Jun 17, 2013Observed: 3.08 ft at 9:00AM Jun 17, 2013Observed: 3.08 ft at 9:15AM Jun 17, 2013Observed: 3.07 ft at 9:30AM Jun 17, 2013Observed: 3.07 ft at 9:45AM Jun 17, 2013Observed: 3.07 ft at 10:00AM Jun 17, 2013Observed: 3.06 ft at 10:15AM Jun 17, 2013Observed: 3.06 ft at 10:30AM Jun 17, 2013Observed: 3.06 ft at 10:45AM Jun 17, 2013Observed: 3.05 ft at 11:00AM Jun 17, 2013Observed: 3.05 ft at 11:15AM Jun 17, 2013Observed: 3.05 ft at 11:30AM Jun 17, 2013Observed: 3.04 ft at 11:45AM Jun 17, 2013Observed: 3.04 ft at 12:00PM Jun 17, 2013Observed: 3.04 ft at 12:15PM Jun 17, 2013Observed: 3.03 ft at 12:30PM Jun 17, 2013Observed: 3.03 ft at 12:45PM Jun 17, 2013Observed: 3.02 ft at 1:00PM Jun 17, 2013Observed: 3.02 ft at 1:15PM Jun 17, 2013Observed: 3.02 ft at 1:30PM Jun 17, 2013Observed: 3.02 ft at 1:45PM Jun 17, 2013Observed: 3.01 ft at 2:00PM Jun 17, 2013Observed: 3.01 ft at 2:15PM Jun 17, 2013Observed: 3.01 ft at 2:30PM Jun 17, 2013Observed: 3 ft at 2:45PM Jun 17, 2013Observed: 3 ft at 3:00PM Jun 17, 2013Observed: 3 ft at 3:15PM Jun 17, 2013Observed: 3 ft at 3:30PM Jun 17, 2013Observed: 3 ft at 3:45PM Jun 17, 2013Observed: 3 ft at 4:00PM Jun 17, 2013Observed: 3 ft at 4:15PM Jun 17, 2013Observed: 3 ft at 4:30PM Jun 17, 2013Observed: 3 ft at 4:45PM Jun 17, 2013Observed: 3 ft at 5:00PM Jun 17, 2013Observed: 3.01 ft at 5:15PM Jun 17, 2013Observed: 3.01 ft at 5:30PM Jun 17, 2013Observed: 3.01 ft at 5:45PM Jun 17, 2013Observed: 3.01 ft at 6:00PM Jun 17, 2013Observed: 3.01 ft at 6:15PM Jun 17, 2013Observed: 3.02 ft at 6:30PM Jun 17, 2013Observed: 3.02 ft at 6:45PM Jun 17, 2013Observed: 3.02 ft at 7:00PM Jun 17, 2013Observed: 3.02 ft at 7:15PM Jun 17, 2013Observed: 3.02 ft at 7:30PM Jun 17, 2013Observed: 3.02 ft at 7:45PM Jun 17, 2013Observed: 3.02 ft at 8:00PM Jun 17, 2013Observed: 3.02 ft at 8:15PM Jun 17, 2013Observed: 3.01 ft at 8:30PM Jun 17, 2013Observed: 3.01 ft at 8:45PM Jun 17, 2013Observed: 3.01 ft at 9:00PM Jun 17, 2013Observed: 3.01 ft at 9:15PM Jun 17, 2013Observed: 3 ft at 9:30PM Jun 17, 2013Observed: 3 ft at 9:45PM Jun 17, 2013Observed: 3 ft at 10:00PM Jun 17, 2013Observed: 3 ft at 10:15PM Jun 17, 2013Observed: 3 ft at 10:30PM Jun 17, 2013Observed: 3 ft at 10:45PM Jun 17, 2013Observed: 3 ft at 11:00PM Jun 17, 2013Observed: 3 ft at 11:15PM Jun 17, 2013Observed: 3 ft at 11:30PM Jun 17, 2013Observed: 3 ft at 11:45PM Jun 17, 2013Observed: 2.99 ft at 12:00AM Jun 18, 2013Observed: 2.99 ft at 12:15AM Jun 18, 2013Observed: 2.99 ft at 12:30AM Jun 18, 2013Observed: 2.99 ft at 12:45AM Jun 18, 2013Observed: 2.99 ft at 1:00AM Jun 18, 2013Observed: 2.99 ft at 1:15AM Jun 18, 2013Observed: 2.99 ft at 1:30AM Jun 18, 2013Observed: 2.98 ft at 1:45AM Jun 18, 2013Observed: 2.98 ft at 2:00AM Jun 18, 2013Observed: 2.98 ft at 2:15AM Jun 18, 2013Observed: 2.98 ft at 2:30AM Jun 18, 2013Observed: 2.98 ft at 2:45AM Jun 18, 2013Observed: 2.98 ft at 3:00AM Jun 18, 2013Observed: 2.98 ft at 3:15AM Jun 18, 2013Observed: 2.98 ft at 3:30AM Jun 18, 2013Observed: 2.98 ft at 3:45AM Jun 18, 2013Observed: 2.98 ft at 4:00AM Jun 18, 2013Observed: 2.98 ft at 4:15AM Jun 18, 2013Observed: 2.98 ft at 4:30AM Jun 18, 2013Observed: 2.97 ft at 4:45AM Jun 18, 2013Observed: 2.97 ft at 5:00AM Jun 18, 2013Observed: 2.97 ft at 5:15AM Jun 18, 2013Observed: 2.97 ft at 5:30AM Jun 18, 2013Observed: 2.97 ft at 5:45AM Jun 18, 2013Observed: 2.97 ft at 6:00AM Jun 18, 2013Observed: 2.97 ft at 6:15AM Jun 18, 2013Observed: 2.97 ft at 6:30AM Jun 18, 2013Observed: 2.97 ft at 6:45AM Jun 18, 2013Observed: 2.97 ft at 7:00AM Jun 18, 2013Observed: 2.97 ft at 7:15AM Jun 18, 2013Observed: 2.96 ft at 7:30AM Jun 18, 2013Observed: 2.96 ft at 7:45AM Jun 18, 2013Observed: 2.96 ft at 8:00AM Jun 18, 2013Observed: 2.96 ft at 8:15AM Jun 18, 2013Observed: 2.96 ft at 8:30AM Jun 18, 2013Observed: 2.96 ft at 8:45AM Jun 18, 2013Observed: 2.96 ft at 9:00AM Jun 18, 2013Observed: 2.96 ft at 9:15AM Jun 18, 2013Observed: 2.95 ft at 9:30AM Jun 18, 2013Observed: 2.95 ft at 9:45AM Jun 18, 2013Observed: 2.95 ft at 10:00AM Jun 18, 2013Observed: 2.95 ft at 10:15AM Jun 18, 2013Observed: 2.95 ft at 10:30AM Jun 18, 2013Observed: 2.94 ft at 10:45AM Jun 18, 2013Observed: 2.94 ft at 11:00AM Jun 18, 2013Observed: 2.94 ft at 11:15AM Jun 18, 2013Observed: 2.94 ft at 11:30AM Jun 18, 2013Observed: 2.94 ft at 11:45AM Jun 18, 2013Observed: 2.94 ft at 12:00PM Jun 18, 2013Observed: 2.94 ft at 12:15PM Jun 18, 2013Observed: 2.94 ft at 12:30PM Jun 18, 2013Observed: 2.94 ft at 12:45PM Jun 18, 2013Observed: 2.94 ft at 1:00PM Jun 18, 2013Observed: 2.94 ft at 1:15PM Jun 18, 2013Observed: 2.94 ft at 1:30PM Jun 18, 2013Observed: 2.94 ft at 1:45PM Jun 18, 2013Observed: 2.95 ft at 2:00PM Jun 18, 2013Observed: 2.95 ft at 2:15PM Jun 18, 2013Observed: 2.96 ft at 2:30PM Jun 18, 2013Observed: 2.96 ft at 2:45PM Jun 18, 2013Observed: 2.97 ft at 3:00PM Jun 18, 2013Observed: 2.98 ft at 3:15PM Jun 18, 2013Observed: 2.99 ft at 3:30PM Jun 18, 2013Observed: 3 ft at 3:45PM Jun 18, 2013Observed: 3 ft at 4:00PM Jun 18, 2013Observed: 3 ft at 4:15PM Jun 18, 2013Observed: 3.01 ft at 4:30PM Jun 18, 2013Observed: 3.01 ft at 4:45PM Jun 18, 2013Observed: 3.01 ft at 5:00PM Jun 18, 2013Observed: 3.01 ft at 5:15PM Jun 18, 2013Observed: 3.01 ft at 5:30PM Jun 18, 2013Observed: 3.02 ft at 5:45PM Jun 18, 2013Observed: 3.02 ft at 6:00PM Jun 18, 2013Observed: 3.02 ft at 6:15PM Jun 18, 2013Observed: 3.02 ft at 6:30PM Jun 18, 2013Observed: 3.03 ft at 6:45PM Jun 18, 2013Observed: 3.03 ft at 7:00PM Jun 18, 2013Observed: 3.04 ft at 7:15PM Jun 18, 2013Observed: 3.04 ft at 7:30PM Jun 18, 2013Observed: 3.04 ft at 7:45PM Jun 18, 2013Observed: 3.04 ft at 8:00PM Jun 18, 2013Observed: 3.05 ft at 8:15PM Jun 18, 2013Observed: 3.05 ft at 8:30PM Jun 18, 2013Observed: 3.06 ft at 8:45PM Jun 18, 2013Observed: 3.06 ft at 9:00PM Jun 18, 2013Observed: 3.07 ft at 9:15PM Jun 18, 2013Observed: 3.08 ft at 9:30PM Jun 18, 2013Observed: 3.08 ft at 9:45PM Jun 18, 2013Observed: 3.09 ft at 10:00PM Jun 18, 2013Observed: 3.1 ft at 10:15PM Jun 18, 2013Observed: 3.11 ft at 10:30PM Jun 18, 2013Observed: 3.12 ft at 10:45PM Jun 18, 2013Observed: 3.12 ft at 11:00PM Jun 18, 2013Observed: 3.13 ft at 11:15PM Jun 18, 2013Observed: 3.14 ft at 11:30PM Jun 18, 2013Observed: 3.15 ft at 11:45PM Jun 18, 2013Observed: 3.16 ft at 12:00AM Jun 19, 2013Observed: 3.17 ft at 12:15AM Jun 19, 2013Observed: 3.18 ft at 12:30AM Jun 19, 2013Observed: 3.19 ft at 12:45AM Jun 19, 2013Observed: 3.2 ft at 1:00AM Jun 19, 2013Observed: 3.21 ft at 1:15AM Jun 19, 2013Observed: 3.22 ft at 1:30AM Jun 19, 2013Observed: 3.22 ft at 1:45AM Jun 19, 2013Observed: 3.24 ft at 2:00AM Jun 19, 2013Observed: 3.24 ft at 2:15AM Jun 19, 2013Observed: 3.26 ft at 2:30AM Jun 19, 2013Observed: 3.26 ft at 2:45AM Jun 19, 2013Observed: 3.27 ft at 3:00AM Jun 19, 2013Observed: 3.28 ft at 3:15AM Jun 19, 2013Observed: 3.29 ft at 3:30AM Jun 19, 2013Observed: 3.3 ft at 3:45AM Jun 19, 2013Observed: 3.31 ft at 4:00AM Jun 19, 2013Observed: 3.32 ft at 4:15AM Jun 19, 2013Observed: 3.33 ft at 4:30AM Jun 19, 2013Observed: 3.33 ft at 4:45AM Jun 19, 2013Observed: 3.34 ft at 5:00AM Jun 19, 2013Observed: 3.35 ft at 5:15AM Jun 19, 2013Observed: 3.36 ft at 5:30AM Jun 19, 2013Observed: 3.36 ft at 5:45AM Jun 19, 2013Observed: 3.37 ft at 6:00AM Jun 19, 2013Observed: 3.37 ft at 6:15AM Jun 19, 2013Observed: 3.38 ft at 6:30AM Jun 19, 2013Observed: 3.38 ft at 6:45AM Jun 19, 2013Observed: 3.39 ft at 7:00AM Jun 19, 2013Observed: 3.39 ft at 7:15AM Jun 19, 2013Observed: 3.4 ft at 7:30AM Jun 19, 2013Observed: 3.4 ft at 7:45AM Jun 19, 2013Observed: 3.4 ft at 8:00AM Jun 19, 2013Observed: 3.41 ft at 8:15AM Jun 19, 2013Observed: 3.41 ft at 8:30AM Jun 19, 2013Observed: 3.41 ft at 8:45AM Jun 19, 2013Highest Observation: 3.42 ft at 9:00AM Jun 19, 2013Highest Observation: 3.42 ft at 9:15AM Jun 19, 2013Highest Observation: 3.42 ft at 9:30AM Jun 19, 2013Highest Observation: 3.42 ft at 9:45AM Jun 19, 2013Highest Observation: 3.42 ft at 10:00AM Jun 19, 2013Highest Observation: 3.42 ft at 10:15AM Jun 19, 2013Highest Observation: 3.42 ft at 10:30AM Jun 19, 2013Highest Observation: 3.42 ft at 10:45AM Jun 19, 2013Highest Observation: 3.42 ft at 11:00AM Jun 19, 2013Highest Observation: 3.42 ft at 11:15AM Jun 19, 2013Highest Observation: 3.42 ft at 11:30AM Jun 19, 2013Highest Observation: 3.42 ft at 11:45AM Jun 19, 2013Highest Observation: 3.42 ft at 12:00PM Jun 19, 2013Highest Observation: 3.42 ft at 12:15PM Jun 19, 2013Highest Observation: 3.42 ft at 12:30PM Jun 19, 2013Highest Observation: 3.42 ft at 12:45PM Jun 19, 2013Highest Observation: 3.42 ft at 1:00PM Jun 19, 2013Highest Observation: 3.42 ft at 1:15PM Jun 19, 2013Highest Observation: 3.42 ft at 1:30PM Jun 19, 2013Observed: 3.41 ft at 1:45PM Jun 19, 2013Observed: 3.41 ft at 2:00PM Jun 19, 2013Observed: 3.41 ft at 2:15PM Jun 19, 2013Observed: 3.41 ft at 2:30PM Jun 19, 2013Observed: 3.4 ft at 2:45PM Jun 19, 2013Observed: 3.4 ft at 3:00PM Jun 19, 2013Observed: 3.4 ft at 3:15PM Jun 19, 2013Observed: 3.4 ft at 3:30PM Jun 19, 2013Observed: 3.4 ft at 3:45PM Jun 19, 2013Observed: 3.39 ft at 4:00PM Jun 19, 2013Observed: 3.39 ft at 4:15PM Jun 19, 2013Observed: 3.38 ft at 4:30PM Jun 19, 2013Observed: 3.38 ft at 4:45PM Jun 19, 2013Observed: 3.38 ft at 5:00PM Jun 19, 2013Observed: 3.38 ft at 5:15PM Jun 19, 2013Observed: 3.37 ft at 5:30PM Jun 19, 2013Observed: 3.37 ft at 5:45PM Jun 19, 2013Observed: 3.36 ft at 6:00PM Jun 19, 2013Observed: 3.36 ft at 6:15PM Jun 19, 2013Observed: 3.36 ft at 6:30PM Jun 19, 2013Observed: 3.36 ft at 6:45PM Jun 19, 2013Observed: 3.35 ft at 7:00PM Jun 19, 2013Observed: 3.34 ft at 7:15PM Jun 19, 2013Observed: 3.34 ft at 7:30PM Jun 19, 2013Observed: 3.34 ft at 7:45PM Jun 19, 2013Observed: 3.33 ft at 8:00PM Jun 19, 2013Highest Forecast: 3.2 ft 2:00AM Jun 20, 2013Forecast: 3.1 ft 8:00AM Jun 20, 2013Forecast: 3.1 ft 2:00PM Jun 20, 2013Forecast: 3 ft 8:00PM Jun 20, 2013Forecast: 2.9 ft 2:00AM Jun 21, 2013Forecast: 2.9 ft 8:00AM Jun 21, 2013Forecast: 2.8 ft 2:00PM Jun 21, 2013Forecast: 2.8 ft 8:00PM Jun 21, 2013Forecast: 2.7 ft 2:00AM Jun 22, 2013Forecast: 2.7 ft 8:00AM Jun 22, 2013USGS--Water Resources of the United StatesWGTM3(plotting HGIRG) Graph Created (8:31PM Jun 19, 2013)ObservedForecast (issued 11:03AM Jun 19)Latest observed value: 3.33 ft at 8:00 PM EDT 19-Jun-2013. Flood Stage is 7 ft
Printable Image
About this graph
Tabular Data
XML Data
RSS Files
Datum: Not Available
Metadata
NOTE: Forecasts for the Squannacook River at West Groton are issued routinely year-round.
Return to Area Map
Flood Categories (in feet)
Major Flood Stage:9.5
Moderate Flood Stage:8.5
Flood Stage:7
Action Stage:6

Historical Crests
(1) 8.50 ft on 04/17/2007
(2) 8.16 ft on 04/06/1987
(3) 8.07 ft on 04/02/2004
(4) 8.04 ft on 10/16/1955
(5) 8.03 ft on 03/15/2010
Show More Historical Crests

Low Water Records
Legend
Gauge Location
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
9 THIS IS A SERIOUS FLOOD EVENT. WIDESPREAD FLOODING IS EXPECTED ALONG THE RIVER THROUGH TOWNSEND...SHIRLEY AND GROTON. SMALL BROOKS AND TRIBUTARIES TRYING TO FLOW INTO THE SQUANNACOOK WILL EXPERIENCE FLOODING AS WELL. SOME ROAD CLOSURES MAY BE NEEDED. IF ASKED TO EVACUATE...DO SO IMMEDIATELY. FOLLOW THE DIRECTIONS OF EMERGENCY MANAGEMENT OFFICIALS.
8.5 FLOODING WILL AFFECT PORTIONS OF TOWNSEND AND GROTON. AREAS ALONG TURNPIKE AND BARKER HILL ROADS AND ALONG SQUANNACOOK TERRACE SHOULD EXPECT FLOODING. IN ADDITION...FLOODING ALSO OCCURS ON SEVERAL ACCESS ROADS TO THE TOWNSEND STATE FOREST.
8 MINOR FLOODING IS EXPECTED IN LOWER LYING SECTIONS OF TOWNSEND INCLUDING THE FARMING AREAS ALONG TURNPIKE AND BARKER HILL ROADS. FLOODING MAY ALSO SPREAD INTO LOW LYING AREAS ALONG SQUANNACOOK TERRACE.
7.5 MINOR FLOODING AFFECTS THE LOWEST LYING SECTIONS OF TOWNSEND...INCLUDING THE FARMLAND ALONG TURNPIKE AND BARKER HILL ROADS.
About This Location Collapse

Latitude: 42.634167° N, Longitude: 71.658333° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame		 Gauge Height Flood Stage Uses
NWS stage 0 ft 7 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 Not Available Not Available Older USGS topographic maps, NGVD29 benchmarks
MSL Not Available Not Available Older USGS topographic maps, MSL benchmarks
Other NULL NULL  

Other Data Sources:
Resources Collapse
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
National Weather Service
Boston Weather Forecast Office
445 Myles Standish Blvd
Taunton, MA 02780
Ask Questions/Webmaster
Page last modified: 13-Mar-2013 6:34 PM 		Disclaimer
Credits
Glossary 		Privacy Policy
About Us
Career Opportunities