Vineyard Sound

ANZ233 · Coastal Waters Forecast, National Weather Service Boston/Norton MA · issued Sun, Sep 27, 4:03 AM EDT

Storm Warning and Gale Warning in force. Today: E winds 20 to 25 kt, diminishing to 15 to 20 kt this afternoon. Gusts up to 30 kt. Seas 4 to 6 ft. Wave Detail: NE 6 ft at 7 seconds and S 4 ft at 10 seconds. Isolated tstms. A chance of showers this morning, then showers likely this afternoon.

Vineyard Sound on the map

The zone and the zones around it, tinted where a marine warning or advisory is in force. Tap a neighboring zone to open its forecast.

Storm Warning

Open the live map with marine zones and buoys

Now

The nearest stations reporting each, as of Sun, Sep 27, 4:00 AM EDT.

Wind: NE 28 kt, gusts 32 kt at BUZM3
Waves: 8.5 ft at 11 s at 44085
Water: 64°F at BZBM3

Alerts in force

Storm Warning from Sun, Sep 27, 2:21 AM EDT until Sun, Sep 27, 10:00 AM EDT

The Storm Warning has been cancelled.

The full text

The Storm Warning has been cancelled and is no longer in effect.

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for hazardous conditions.

Gale Warning from Sun, Sep 27, 2:21 AM EDT until Sun, Sep 27, 12:00 PM EDT

Gale Warning issued September 27 at 2:21AM EDT until September 27 at 12:00PM EDT by NWS Boston/Norton MA

The full text

* WHAT...East winds 20 to 30 kt with gusts up to 45 kt and seas
6 to 9 feet.

* WHERE...In Massachusetts coastal waters, Nantucket Sound,
Vineyard Sound and Buzzards Bay. In Rhode Island coastal
waters, Rhode Island Sound and Block Island Sound.

* WHEN...Until noon EDT today.

* IMPACTS...Strong winds will cause hazardous seas which could
capsize or damage vessels and reduce visibility.

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for hazardous conditions.

The forecast

Coastal Waters Forecast from National Weather Service Boston/Norton MA, issued Sun, Sep 27, 4:03 AM EDT, valid until Sun, Sep 27, 5:00 PM EDT. Wind in knots, seas in feet.

GALE WARNING IN EFFECT UNTIL NOON EDT TODAY

Today: E winds 20 to 25 kt, diminishing to 15 to 20 kt this afternoon. Gusts up to 30 kt. Seas 4 to 6 ft. Wave Detail: NE 6 ft at 7 seconds and S 4 ft at 10 seconds. Isolated tstms. A chance of showers this morning, then showers likely this afternoon.
Tonight: E winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 4 ft. Wave Detail: S 4 ft at 8 seconds and E 3 ft at 6 seconds. Showers.
Monday: E winds around 10 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 7 seconds. Showers likely, mainly in the morning.
Monday night: NE winds around 10 kt, becoming N after midnight. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 7 seconds and E 2 ft at 11 seconds. A chance of showers.
Tuesday and Tuesday night: N winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: NW 3 ft at 7 seconds and E 1 foot at 8 seconds.
Wednesday through Thursday night: SW winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. Wave Detail: SW 2 ft at 4 seconds and E 1 foot at 12 seconds.

Winds and seas higher in and near tstms.

Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height.

Synopsis

Synopsis for Massachusetts and Rhode Island coastal waters

A slow moving Nor'easter will continue to bring dangerous conditions for Mariners through the weekend. NE wind gusts of 40 to 60 kt with maximum seas of 15-25 feet across the open waters continue into early Sun. NE winds will only gradually diminish to Gale Force levels on Sun and finally back to small craft levels by Mon. Seas slowly diminish Sun into Mon...but remain well above small craft advisory thresholds.

Winds and seas will finally drop below small craft for the middle and latter half of the upcoming work week as the Nor'easter finally loses its grip on our region.

Buoys and stations nearby

The latest report from each station within reach of the zone, nearest first. Distances in nautical miles from the middle of the zone.

Station	Distance	Wind	Waves	Water	Air	Pressure	Reported
BZBM3 8447930 - Woods Hole, MA	7 nm			64°F	64°F	1002.7 hPa	Sun, Sep 27, 3:30 AM EDT
BUZM3 Buzzards Bay, MA	12 nm	NE 28 kt, gusts 32				1001.6 hPa	Sun, Sep 27, 4:00 AM EDT
44085 Buzzards Bay, MA (260)	12 nm		8.5 ft at 11 s from SSE	65°F	63°F		Sun, Sep 27, 3:30 AM EDT
NBGM3 8447627 - New Bedford, Barrier Gate, MA	13 nm	ENE 18 kt, gusts 25			61°F	1003.8 hPa	Sun, Sep 27, 3:30 AM EDT
WAXM3 Carriage House, Waquoit Bay Reserve, MA	14 nm	N 3 kt			62°F	1003.0 hPa	Sun, Sep 27, 3:00 AM EDT
44020 NANTUCKET SOUND	22 nm	ENE 25 kt, gusts 31	3.9 ft from ENE	61°F	62°F	1002.3 hPa	Sun, Sep 27, 3:20 AM EDT

The past year

Warnings, watches and advisories the National Weather Service issued for this zone over the past 12 months, from the Iowa Environmental Mesonet’s archive.

Product	Issued	Most recent
Gale Warning	39	Sun, Sep 27, 2026, 2:21 AM EDT
Special Marine Warning	10	Sun, Aug 23, 2026, 1:07 PM EDT
Storm Warning	6	Fri, Sep 25, 2026, 2:00 AM EDT
Freezing Spray Warning	2	Sat, Feb 7, 2026, 4:00 PM EST
Gale Watch	24	Wed, Sep 9, 2026, 8:00 PM EDT
Storm Watch	4	Fri, Sep 25, 2026, 2:00 AM EDT
Freezing Spray Watch	1	Sat, Feb 7, 2026, 4:00 PM EST
Small Craft Advisory	85	Tue, Sep 22, 2026, 8:00 AM EDT
Freezing Spray Advisory	8	Mon, Mar 2, 2026, 1:00 AM EST

What this means

Marine forecasts give wind in knots (1 knot is 1.15 mph) and seas in feet, except the high seas forecasts, which give seas in meters. Seas are the significant wave height, the average of the highest third of the waves; individual waves may be more than twice that. On the Great Lakes the forecast gives waves, not seas. "Wave Detail" splits the seas into the wind waves and each swell, with its direction and period.

Each coastal office writes a Coastal Waters Forecast for the bays, sounds and ocean out to 20 to 60 nautical miles, or on the Great Lakes a Nearshore Marine Forecast within 5 nautical miles of shore; the Open Lakes Forecast covers the rest of each lake. The Ocean Prediction Center and the National Hurricane Center write the Offshore Waters Forecasts out to about 250 nautical miles, and the High Seas Forecasts beyond. Forecasts are issued at least twice a day and updated when they go wrong.

Small Craft Advisory: Winds or conditions hazardous to small boats. The thresholds are set by each NWS region: typically sustained winds or frequent gusts of 20 to 25 knots up to 33 knots, and seas of 5 to 7 feet or more.
Gale Warning: Sustained winds or frequent gusts of 34 to 47 knots, not from a tropical cyclone.
Storm Warning: Sustained winds or frequent gusts of 48 to 63 knots, not from a tropical cyclone.
Hurricane Force Wind Warning: Sustained winds or frequent gusts of 64 knots or more, not from a tropical cyclone.
Special Marine Warning: A thunderstorm or squall over the water with winds or gusts of 34 knots or more, hail of 3/4 inch or more, or a waterspout, for up to two hours.
Hazardous Seas Warning: Wave heights or steepness at or above the office’s warning threshold, when the wind alone does not warrant a warning.
Heavy Freezing Spray Warning: Spray freezing on a vessel at 2 cm (3/4 inch) an hour or more.
Tropical Storm and Hurricane Warnings: Tropical storm (34 to 63 knots) or hurricane (64 knots or more) conditions expected within 36 hours. Watches: possible within 48 hours.

Nearby

Open the live map with marine zones and buoys The hour-by-hour forecast for the middle of the zone Bristol Area Beaches Martha's Vineyard Beaches Every Atlantic Coast zone

Sources

Coastal Waters Forecast CWFBOX from National Weather Service Boston/Norton MA, issued Sun, Sep 27, 4:03 AM EDT. Original at NWS. Buoy reports from the National Data Buoy Center. Past products from the Iowa Environmental Mesonet. Zone outlines from the NWS marine and offshore zone boundaries. Warnings and advisories from the NWS API, read 08:34 UTC. All public domain, from the National Weather Service.