National Weather Service Advanced Hydrologic Prediction Service

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Weather Forecast Office Boston / Norton, MA

Northeast River Forecast Center

Hydrograph

River at a Glance

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Narragansett Bay at Conimicut Light (IN MLLW)

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About this graph

Tabular Data (UTC)

Tabular Data (EDT)

Datum: Not Available

Metadata

NOTE: Please refer to our Coastal Hazard Message for specific information regarding Coastal Flood Watches, Warnings and Advisories. Actual impacts from any coastal flooding event may vary due to factors such as rainfall, wave action, and the number of tide cycles during which there is an onshore flow. During tropical cyclones, please refer here for additional storm surge information.

NOTE: During a Tropical Storm or Hurricane Watch or Warning, inundation mapping provided by the National Hurricane Center (go to the web site and select the storm of interest) reflects a reasonable worst case scenario. The forecast above is the total water forecast that is most likely to occur.

NOTE: Forecasts for the Narragansett Bay at Conimicut Light (IN MLLW) are issued routinely year-round.

Vertical Datum references a tidal datum...for more information see Tides and Currents .

Return to Area Map

Flood Categories (in feet)

Major Flood Stage:	10
Moderate Flood Stage:	8.5
Flood Stage:	7
Action Stage:	6
Low Stage (in feet):	-9999

Historic Crests
(1) 9.06 ft on 10/29/2012
(2) 8.52 ft on 12/18/2023
(3) 8.45 ft on 12/23/2022
(4) 7.89 ft on 01/13/2024
(5) 7.56 ft on 08/28/2011
(6) 7.54 ft on 01/28/2024
(7) 7.32 ft on 03/10/2024
(8) 7.29 ft on 12/12/2000
(9) 7.23 ft on 02/09/2016
(10) 7.22 ft on 12/03/2009
Show More Historic Crests

(P): Preliminary values subject to further review.

Recent Crests
(1) 7.32 ft on 03/10/2024
(2) 7.54 ft on 01/28/2024
(3) 7.89 ft on 01/13/2024
(4) 8.52 ft on 12/18/2023
(5) 8.45 ft on 12/23/2022
(6) 6.51 ft on 01/30/2018
(7) 6.46 ft on 01/04/2018
(8) 7.23 ft on 02/09/2016
(9) 7.07 ft on 09/30/2015
(10) 9.06 ft on 10/29/2012
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.

Show FEMA's National Flood Hazard Layers

Zoom Level:14

	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

If you notice any errors in the below information, please contact our Webmaster
10	Major coastal flooding is expected in Warwick, Bristol, Barrington and Warren. Numerous homes, businesses and roadways near the coastline will be impacted by this event. In Warwick, flooding occurs in and around Oakland Beach, Strand Ave, Goddard Memorial State Park, and Sandy Point. In Bristol impacts occur in the vicinity of Bristol Harbor, Route 114 and Colt State Park. In Barrington and Warren, flooding occurs along the Warren and Barrington Rivers, near Belchers Cove and the Kickemuit River.
9	Moderate to major flooding is expected in the vicinity of Warwick, Barrington, Bristol and Warren. This includes but is not limited to the following. In Warwick, flooding occurs in and around Oakland Beach, Strand Ave, Goddard Memorial State Park, and Sandy Point. In Bristol, impacts occur in the vicinity of Bristol Harbor, Route 114, Colt State Park and the East Bay Bike Path. In Barrington and Warren, flooding occurs along the Warren and Barrington Rivers, near Belchers Cove and the Kickemuit River.
8	Minor to moderate coastal flooding is expected within Warwick, Barrington, Bristol and Warren. This includings low lying roads and some homes and businesses nearshore. Heed the advice of local officals, and evacuate if asked to do so.
7	Minor coastal flooding is expected in the lowest lying areas of Warwick, Barrington, Bristol and Warren. Low lying coastal roads flood around high tide. Floodwaters encroach on lowest lying homes and businesses.

About This Location

Latitude: 41.717000° N, Longitude: 71.343000° 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	-2.10	4.90	Older USGS topographic maps, MSL benchmarks
Other	Not Available	7	MLLW (Mean Lower Low Water)

Additional Information

Conimicut Point gage data and forecasts are in feet Mean Lower Low Water (MLLW).

Resources

Hydrologic Resources

Additional Resources

Collaborative Agencies

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
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Page last modified: 2-Nov-2020 7:30 PM

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