Edgartown Harbor near Chappaquiddick Point (IN MLLW)
Massachusetts — Water Level & Flood Stage
Located in Dukes County, Massachusetts on the Edgartown Harbor. Live water level data from USGS, updated every 15 minutes.
Current Water Level
Gage Height
Loading...
Streamflow
Loading...
Last Reading
Loading...
This is an NWS forecast point (LID: CHPM3). Live data may be limited. View on NWS AHPS →
Flood Stages
Major Flood
7 ft
Moderate Flood
5.5 ft
Minor Flood
4 ft
Action Stage
3.5 ft
Flood stages defined by the National Weather Service. Gage height data from USGS Water Resources.
What Floods at Each Level
7 ft
This is a degree of flooding rarely seen. Life threatening flooding more than 3 feet deep affects many coastal roads in Edgartown, Vineyard Haven, and Oak Bluffs. This includes Edgartown Harbor, Five Corners and nearby roads on Vineyard Haven Harbor, Oak Bluffs Harbor, and coastal roads where debris may wash onto the road. Many roads may be flooded several hours before and after high tide.
6 ft
Many coastal roads are impassable with flooding 2 to 3 feet deep. 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 ft
Many coastal roads become impassable 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 ft
Some roads become impassable. 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 ft
Roads remain passable with pockets of shallow flooding less than one foot deep. This mainly affects low lying areas and roads near Edgartown Harbor, including the Chappy Ferry Dock. Shallow flooding may also approach Five Corners in Vineyard Haven.
Impact statements from the National Weather Service, describing what typically happens at each water level.
7-Day Water Level Chart
Loading chart data...
Historic Crests
| Date | Stage | Flow |
|---|---|---|
| Jan 12, 2024 | 6.7 ft | — |
| Jan 12, 2024 | 6.7 ft | — |
| Dec 17, 2023 | 5.3 ft | — |
| Jan 9, 2024 | 5.3 ft | — |
| Jan 9, 2024 | 5.3 ft | — |
About This Gauge
NWS LID
CHPM3
River
Edgartown Harbor
County
Dukes, MA
Coordinates
41.3893°N, 70.5099°W
Get Flood Alerts for Edgartown Harbor
StormCast monitors this gauge and sends a push notification to your phone when the water level crosses into a new flood category — even at 3 AM.
Frequently Asked Questions
What is the current water level of Edgartown Harbor near Chappaquiddick Point (IN MLLW)?
The Edgartown Harbor near Chappaquiddick Point (IN MLLW) gauge is maintained by USGS and reports water levels every 15 minutes. Visit this page to see the latest reading updated live, or download StormCast to get push alerts when levels rise.
What is flood stage for Edgartown Harbor near Chappaquiddick Point (IN MLLW)?
The NWS-defined flood stage for Edgartown Harbor near Chappaquiddick Point (IN MLLW) is 4 feet. Action stage begins at 3.5 feet. Moderate flooding starts at 5.5 feet, and major flooding at 7 feet.
How do I get alerts when Edgartown Harbor rises?
Download StormCast free on Google Play, go to River Gauges, and add Edgartown Harbor near Chappaquiddick Point (IN MLLW) to your watchlist. StormCast will send a push notification to your phone whenever the water level crosses into a new NWS flood category — even when your screen is off.
Where is the Edgartown Harbor near Chappaquiddick Point (IN MLLW) gauge located?
The gauge is located in Dukes County, Massachusetts at coordinates 41.3893°N, 70.5099°W. Data is provided by the U.S. Geological Survey and the National Weather Service.
More Resources
Source & Notes
- <span style="color: #ff0000;">Please refer to our <span style="background-color: #ffff00;"><a style="color: #ff0000; background-color: #ffff00;" title="Link to CFWBOX" href="https://forecast.weather.gov/product.php?site=NWS&issuedby=BOX&product=CFW&format=CI&version=1&glossary=0">Coastal Hazard Message</a></span> 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 <span style="background-color: #ffff00;"><a style="background-color: #ffff00;" title="Link to TCVBOX" href="https://forecast.weather.gov/product.php?site=NWS&issuedby=BOX&product=TCV&format=CI&version=1&glossary=1">here</a></span> for additional storm surge information.</span>
- <span style="color: #ff0000;">During a Tropical Storm or Hurricane Watch or Warning, inundation mapping provided by the <span style="background-color: #ffff00;"><a style="color: #ff0000; background-color: #ffff00;" href="https://www.nhc.noaa.gov">National Hurricane Center</a></span> (go to the web site and select the storm of interest) is available and reflects the reasonable worst case scenario.</span>