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 Spring 2024. Existing AHPS content and features will be preserved and expanded within NWPS. The NWS is now accepting feedback on NWPS. Please visit https://www.weather.gov/owp/operations for more information.

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.

DID YOU KNOW... Please try our new TEST hydrograph page link at: https://preview.water.noaa.gov/gauges/abcde - Just replace “abcde” with your local hydrograph five character ID found in the lower left corner of the hydrograph.  In late March of 2024, the base URL path will become water.noaa.gov.  Feedback can be provided HERE

Weather Forecast Office Boston / Norton, MA

Northeast River Forecast Center

Hydrograph

River at a Glance

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Printable Image About this graph Tabular Data (UTC) Tabular Data (EST) 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) is available and reflects the reasonable worst case scenario. NOTE: Forecasts for the Edgartown Harbor near Chappaquiddick Point (IN MLLW) are issued routinely year-round. Vertical Datum references a tidal datum (MLLW)...for more information see Tides and Currents .

Default Hydrograph Scale to Flood Categories   Return to Area Map

Flood Categories (in feet) Major Flood Stage: 6.5 Moderate Flood Stage: 5 Flood Stage: 4 Action Stage: 3.5 Low Stage (in feet): -9999 Historic Crests Currently none available. Recent Crests Currently none available. Low Water Records Currently none available.

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

If you notice any errors in the below information, please contact our Webmaster
6	Road closures are likely. Flooding 2 to 3 feet deep affects Edgartown Harbor, Vineyard Haven, and Oak Bluffs. In Edgartown, the Chappy Ferry Dock and Dock Street are flooded. In Vineyard Haven, Five Corners, Water Street, and Lagoon Pond Road are flooded. Beach Road from Vineyard Haven to Oak Bluffs, and from Oak Bluffs to Edgartown, are flooded. In Oak Bluffs, flooding affects East Chop Drive, the section of Lake Avenue near Oak Bluffs Harbor, and Sea View Avenue, where debris may wash onto the road.
5	Road closures are likely with flooding 1 to 3 feet deep. This includes the Chappy Ferry Dock and Dock Street near Edgartown Harbor. In Vineyard Haven, Five Corners, Beach Road, and Water Street become impassable. In Oak Bluffs, flooding affects East Chop Drive, the section of Lake Avenue near Oak Bluffs Harbor, and Sea View Avenue, where debris may also wash onto the roadway.
4.5	Some road closures may be required. Flooding 1 to 2 feet deep affects low lying areas around Edgartown Harbor, Vineyard Haven, and Oak Bluffs. This includes the Chappy Ferry Dock in Edgartown, Five Corners and Beach Road in Vineyard Haven, and East Chop Drive in Oak Bluffs. Splashover from waves affects Sea View Avenue in Oak Bluffs.
4	Roads remain passable. Shallow pockets of flooding up to one foot deep affect low lying areas around Edgartown Harbor, including the Chappy Ferry Dock, as well as Five Corners and Beach Road in Vineyard Haven.

About This Location

Latitude: 41.389300° N, Longitude: 70.509900° W, Horizontal Datum: Other River Stage Reference Frame Gauge Height Flood Stage Uses NWS stage 0 ft 4 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 -1.65 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 Not Available Not Available MLLW

Additional Information

Vertical Datum references a tidal datum...for more information see https://www.tidesandcurrents.noaa.gov.

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