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Hydrograph River at a Glance Download
Edgartown Harbor at Chappaquiddick Point Tide Height (ft)Forecast: 1 ft 5:00PM Feb 02, 2023Forecast: 1.1 ft 6:00PM Feb 02, 2023Forecast: 1.3 ft 7:00PM Feb 02, 2023Forecast: 1.4 ft 8:00PM Feb 02, 2023Forecast: 1.8 ft 9:00PM Feb 02, 2023Forecast: 1.8 ft 10:00PM Feb 02, 2023Forecast: 1.8 ft 11:00PM Feb 02, 2023Forecast: 1.6 ft 12:00AM Feb 03, 2023Forecast: 1.3 ft 1:00AM Feb 03, 2023Forecast: 0.9 ft 2:00AM Feb 03, 2023Forecast: 0.7 ft 3:00AM Feb 03, 2023Forecast: 0.6 ft 4:00AM Feb 03, 2023Forecast: 0.9 ft 5:00AM Feb 03, 2023Forecast: 1.1 ft 6:00AM Feb 03, 2023Forecast: 1.2 ft 7:00AM Feb 03, 2023Forecast: 1.4 ft 8:00AM Feb 03, 2023Forecast: 1.6 ft 9:00AM Feb 03, 2023Forecast: 1.8 ft 10:00AM Feb 03, 2023Forecast: 1.9 ft 11:00AM Feb 03, 2023Forecast: 1.8 ft 12:00PM Feb 03, 2023Forecast: 1.5 ft 1:00PM Feb 03, 2023Forecast: 1.1 ft 2:00PM Feb 03, 2023Forecast: 0.6 ft 3:00PM Feb 03, 2023Forecast: 0.3 ft 4:00PM Feb 03, 2023Forecast: 0.4 ft 5:00PM Feb 03, 2023Forecast: 0.5 ft 6:00PM Feb 03, 2023Forecast: 0.5 ft 7:00PM Feb 03, 2023Forecast: 0.8 ft 8:00PM Feb 03, 2023Forecast: 0.9 ft 9:00PM Feb 03, 2023Forecast: 1.2 ft 10:00PM Feb 03, 2023Forecast: 1.3 ft 11:00PM Feb 03, 2023Forecast: 1.2 ft 12:00AM Feb 04, 2023Forecast: 1 ft 1:00AM Feb 04, 2023Forecast: 0.6 ft 2:00AM Feb 04, 2023Forecast: 0.1 ft 3:00AM Feb 04, 2023Forecast: -0.2 ft 4:00AM Feb 04, 2023Forecast: 0.1 ft 5:00AM Feb 04, 2023Forecast: 0.6 ft 6:00AM Feb 04, 2023Forecast: 1.2 ft 7:00AM Feb 04, 2023Forecast: 1.7 ft 8:00AM Feb 04, 2023Forecast: 2 ft 9:00AM Feb 04, 2023Forecast: 2.1 ft 10:00AM Feb 04, 2023Forecast: 2.2 ft 11:00AM Feb 04, 2023Forecast: 2 ft 12:00PM Feb 04, 2023Forecast: 1.9 ft 1:00PM Feb 04, 2023Forecast: 1.6 ft 2:00PM Feb 04, 2023Forecast: 1.1 ft 3:00PM Feb 04, 2023Forecast: 0.7 ft 4:00PM Feb 04, 2023Forecast: 0.5 ft 5:00PM Feb 04, 2023Forecast: 0.6 ft 6:00PM Feb 04, 2023Forecast: 0.8 ft 7:00PM Feb 04, 2023Forecast: 1 ft 8:00PM Feb 04, 2023Forecast: 1.2 ft 9:00PM Feb 04, 2023Forecast: 1.4 ft 10:00PM Feb 04, 2023Forecast: 1.6 ft 11:00PM Feb 04, 2023Forecast: 1.6 ft 12:00AM Feb 05, 2023Forecast: 1.4 ft 1:00AM Feb 05, 2023Forecast: 1.3 ft 2:00AM Feb 05, 2023Forecast: 1.1 ft 3:00AM Feb 05, 2023Forecast: 0.7 ft 4:00AM Feb 05, 2023Forecast: 0.7 ft 5:00AM Feb 05, 2023Forecast: 1 ft 6:00AM Feb 05, 2023Forecast: 1.4 ft 7:00AM Feb 05, 2023Forecast: 1.8 ft 8:00AM Feb 05, 2023Forecast: 2 ft 9:00AM Feb 05, 2023Forecast: 2.1 ft 10:00AM Feb 05, 2023Highest Forecast: 2.3 ft 11:00AM Feb 05, 2023Highest Forecast: 2.3 ft 12:00PM Feb 05, 2023Forecast: 2.1 ft 1:00PM Feb 05, 2023Forecast: 1.7 ft 2:00PM Feb 05, 2023Forecast: 1.3 ft 3:00PM Feb 05, 2023USGS--Water Resources of the United StatesCHPM3(plotting HMIRP) Graph Created (4:30PM Feb 2, 2023)Forecast (issued 4:04PM Feb 2)Flood Stage is 4 ft
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Tabular Data (UTC)
Tabular Data (EST)
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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 at Chappaquiddick Point are issued routinely year-round.

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

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Flood Categories (in feet)
Major Flood Stage: 6.5
Moderate Flood Stage: 5
Flood Stage: 4
Action Stage: 0
Low Stage (in feet): -9999

Historic Crests
Currently none available.

Recent Crests
Currently none available.

Low Water Records
Currently none available.
Zoom Level:16
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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
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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 Collapse

Latitude: 41.388800° N, Longitude: 70.506300° 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 Collapse
Vertical Datum references a tidal datum...for more information see https://www.tidesandcurrents.noaa.gov. This gage is currently experiencing a communications outage.
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Hydrologic Resources Additional Resources
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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.
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Page last modified: 2-Nov-2020 7:30 PM
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