Active AlertsNantucket, MA

What: Northeast winds 35 to 45 mph with gusts up to 70 mph expected.
Where: Nantucket County.
When: From 10 PM this evening to 1 AM EST Tuesday.
Impacts: Damaging winds will blow down trees and power lines. Power outages are possible. Travel will be difficult, especially for high profile vehicles.

Remain in the lower levels of your home during the windstorm, and avoid windows. Watch for falling debris and tree limbs. Use caution if you must drive.

What: For the Coastal Flood Warning, two to three feet of inundation above ground level expected in low-lying areas near shorelines and tidal waterways (4.5 to 13.5 feet Mean Lower Low Water). For the Coastal Flood Watch, one to two feet of inundation above ground level possible in low-lying areas near shorelines and tidal waterways (3.6 to 13.7 feet Mean Lower Low Water).
Where: Eastern Plymouth, Barnstable, Dukes and Nantucket Counties.
When: For the Coastal Flood Warning, from 1 AM to 7 AM EST Monday. For the Coastal Flood Watch, from Monday afternoon through Monday evening.
Impacts: Many roads near Nantucket Harbor become impassable with 1 to 2 feet of water and affects access to the ferry terminals. This includes Easy Street, South Beach Street, Easton Street, Walsh Street, Willard Street, and Straight Wharf. 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.

Take the necessary actions to protect flood-prone property. If travel is required, do not drive around barricades or through water of unknown depth.

What: Snow expected. Total snow accumulations between 4 and 6 inches. Winds gusting as high as 70 mph.
Where: Nantucket County.
When: From 4 PM this afternoon to 7 AM EST Tuesday.
Impacts: Travel could be very difficult. Areas of blowing snow could significantly reduce visibility. The hazardous conditions could impact the Monday morning and evening commutes. Very strong winds could cause extensive tree damage.

Slow down and use caution while traveling.