Station Name: Nantucket Island
Data Source: NOAA Tides and Currents

Elevation Above Sea Level: 0 feet

Sensor Depth: -2 feet

Nearest Address:
20 Old N Wharf
Nantucket, MA 02554
Nantucket County

GPS Coordinates: 41.285278, -70.096390

Nearby Water Temperatures

Blizzard Warning issued February 22 at 11:16AM EST until February 24 at 7:00AM EST by NWS Boston/Norton MA

Effective: Sun February 22, 2026, 11:16 AM
Expires: Mon February 23, 2026, 3:15 AM

* WHAT...Blizzard conditions expected. Total snow accumulations between 8 and 11 inches. Winds gusting as high as 75 mph. * WHERE...Nantucket MA County. * WHEN...From 4 PM this afternoon to 7 AM EST Tuesday. * IMPACTS...Travel could be very difficult to impossible. 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.

Travel should be restricted to emergencies only. If you must travel, have a winter survival kit with you. If you get stranded, stay with your vehicle.

Coastal Flood Warning issued February 22 at 3:33PM EST until February 23 at 7:00AM EST by NWS Boston/Norton MA

Effective: Sun February 22, 2026, 3:33 PM
Expires: Mon February 23, 2026, 4:45 AM

* 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 MA, Barnstable MA, Dukes MA and Nantucket MA 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.

Coastal Flood Watch issued February 22 at 3:33PM EST until February 23 at 8:00PM EST by NWS Boston/Norton MA

Effective: Sun February 22, 2026, 3:33 PM
Expires: Mon February 23, 2026, 4:45 AM

* 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 MA, Barnstable MA, Dukes MA and Nantucket MA 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.

Coastal Flood Warning issued February 23 at 12:29AM EST until February 23 at 7:00AM EST by NWS Boston/Norton MA

Effective: Mon February 23, 2026, 12:29 AM
Expires: Mon February 23, 2026, 1:30 PM

* 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 (4.4 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 MA, Barnstable MA, Dukes MA and Nantucket MA Counties. * WHEN...For the Coastal Flood Warning, until 7 AM EST this morning. For the Coastal Flood Watch, from this afternoon through this 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.

Coastal Flood Watch issued February 23 at 12:29AM EST until February 23 at 8:00PM EST by NWS Boston/Norton MA

Effective: Mon February 23, 2026, 12:29 AM
Expires: Mon February 23, 2026, 1:30 PM

* 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 (4.4 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 MA, Barnstable MA, Dukes MA and Nantucket MA Counties. * WHEN...For the Coastal Flood Warning, until 7 AM EST this morning. For the Coastal Flood Watch, from this afternoon through this 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.