Coastal Flood Warning Issued for Eastern Plymouth, Barnstable, Dukes, and Nantucket Counties

Alert Details

The National Weather Service in Boston/Norton MA has issued a Coastal Flood Warning for several coastal regions in Massachusetts. The alert was issued on February 21 and remains in effect through the morning of February 23. This warning indicates that significant coastal flooding is likely to occur during the specified time window.

Affected Areas

The warning covers the following geographic regions:

• Eastern Plymouth MA
• Barnstable MA
• Dukes MA
• Nantucket MA

Specific areas mentioned include Nantucket Harbor, Edgartown Harbor, Vineyard Haven, and Oak Bluffs.

Expected Conditions

Residents should prepare for two to three feet of inundation above ground level in low-lying areas near shorelines and tidal waterways. This measurement corresponds to 4.5 to 13.5 feet Mean Lower Low Water.

Significant impacts to local infrastructure are expected:

• Nantucket: Easy Street, South Beach Street, Easton Street, Walsh Street, Willard Street, and Straight Wharf will likely become impassable. Access to ferry terminals will be affected.
• Edgartown Harbor: Chappy Ferry Dock and Dock Street will see flooding 1 to 3 feet deep.
• Vineyard Haven: Five Corners, Beach Road, and Water Street are expected to become impassable.
• Oak Bluffs: Flooding will affect East Chop Drive, Sea View Avenue, and Lake Avenue near the harbor, with the potential for debris to wash onto roadways.

Timeline

The Coastal Flood Warning is specifically in effect from 1:00 AM to 7:00 AM EST on Monday, February 23.

What You Should Do

Authorities advise residents to take the necessary actions to protect flood-prone property. If travel is required, do not drive around barricades or through water of unknown depth. Avoid areas where flooding is occurring.