Web Portal Changes: The Advanced Hydrologic Prediction Service (AHPS) hosted at https://water.weather.gov will be replaced by the National Water Prediction Service (NWPS), with a target of March 2024. Existing AHPS content and features will be preserved and expanded within NWPS.

Experimental National Water Center Products: Flood Inundation Mapping services are now available for 10% of the U.S. population. Please visit https://www.weather.gov/owp/operations for more information. The National Hydrologic Discussion, Area Hydrologic Discussion, Flood Hazard Outlook, and real-time geospatial services depicting River Forecast Center and National Water Model forecasts, continue to be accessible via the URL above, as described in the StoryMap here.

Weather Forecast Office Boston / Norton, MA

Northeast River Forecast Center

Hydrograph

River at a Glance

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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 Fox Point (IN MLLW) are issued routinely year-round. Vertical Datum references a tidal datum...for more information see Tides and Currents .

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Flood Categories (in feet) Major Flood Stage: 10.5 Moderate Flood Stage: 9 Flood Stage: 7 Action Stage: 6 Low Stage (in feet): -9999 Historic Crests (1) 17.51 ft on 09/20/1938 (2) 16.40 ft on 08/31/1954 (3) 10.71 ft on 09/14/1944 (4) 10.10 ft on 01/20/1978 (5) 9.99 ft on 08/19/1991 (6) 9.75 ft on 01/08/1978 (7) 9.61 ft on 09/12/1960 (8) 9.51 ft on 11/30/1963 (9) 9.20 ft on 12/23/2022 (P) (10) 9.19 ft on 10/29/2012 Show More Historic Crests (P): Preliminary values subject to further review. Recent Crests (1) 9.20 ft on 12/23/2022 (P) (2) 7.00 ft on 11/16/2020 (P) (3) 7.04 ft on 09/30/2020 (P) (4) 7.23 ft on 05/08/2020 (P) (5) 7.10 ft on 05/07/2020 (P) (6) 7.07 ft on 04/10/2020 (P) (7) 7.01 ft on 04/09/2020 (P) (8) 6.62 ft on 01/30/2018 (9) 6.61 ft on 01/04/2018 (10) 7.36 ft on 04/07/2016 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 FEMA's National Flood Hazard Layers not showing? Why aren't the FEMA National Flood Hazard Layers showing on the ESRI Map? Possible reasons: There are no FEMA National Flood Hazard Layers for the location which you are viewing on ESRI Maps. The FEMA Web Mapping Service (WMS) is down. Note: Your zoom level may have changed. ESRI's zoom levels must be between 14 and 16 to show National Flood Hazard layers.

Zoom Level:16 Legend FEMA Layer 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

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10	Flooding will be widespread across many Narragnasett Bay communities and evacuations are likely for the period of a few hours around high tide. Flooding will impact Mount Hope Bay as well. Coastal roads will become impassible and alternate routes for travel will be required.
9	Significant coastal flooding is expected across Narragansett Bay and Mount Hope Bay. Some local evactuations may be required and coastal roads will be flooded around the time of high tide. Marine interests should take necessary precautions to protect boats that are in port.
8	Flooding of low lying coastal areas can be expected over the West Bay from Wickford Cove north to areas in Providence that lie outside flood protection. Flooding will also impact portions of the Upper East Bay including Bristol, Barrington and communities along Mount Hope Bay northward through Somerset and Fall River. Some coastal roads will be impassible for a brief time nearest high tide.
7	Minor coastal flooding is expected in the lowest lying areas of Cranston and Warwick, from Sandy Point and Greenwich Bay northward. A few immediate coastal roads may briefly flood due to wave action.
Photos (1) Fox Point Tidal Station

About This Location

Latitude: 41.806700° N, Longitude: 71.400600° 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 -2.47 4.53 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 -2.25 4.75 Older USGS topographic maps, MSL benchmarks Other Not Available 7 MLLW (Mean Lower Low Water)

Additional Information

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

Resources

Hydrologic Resources Text Products Past Precipitation Forecast Precipitation River Forecast Centers River Stage Summary Inundation Mapping Locations

Additional Resources Area Hydrographs NWS Precipitation and River Forecasting AHPS Iframes for Developers Mobile iNWS for emergency management Snow Information Ensemble River Forecasts Hourly Precipitation

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 Ask Questions/Webmaster Page last modified: 2-Nov-2020 7:30 PM Disclaimer Credits Glossary Privacy Policy About Us Career Opportunities