Station List

National Weather Service Marine Forecast FZUS51 KBOX

FZUS51 KBOX 120207
CWFBOX

Coastal Waters Forecast for Massachusetts and Rhode Island
National Weather Service Boston/Norton MA
1007 PM EDT Wed Mar 11 2026

Coastal waters from the Merrimack River MA to Watch Hill RI out to 25 NM

ANZ200-121500
1007 PM EDT Wed Mar 11 2026

Synopsis for Massachusetts and Rhode Island coastal waters

A cold front will move E across the waters late tonight into Thu morning. High pres will build S of the waters Fri. A warm front should then lift N into the waters Fri evening, followed by a cold front passage early Sat. High pres then expected over the waters Sat night before moving farther offshore Sun.

ANZ250-121500
Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary
1007 PM EDT Wed Mar 11 2026

SMALL CRAFT ADVISORY IN EFFECT THROUGH FRIDAY MORNING

OVERNIGHT
S winds 20 to 25 kt with gusts up to 30 kt. Seas 4 to 6 ft. Wave Detail: SW 5 ft at 5 seconds and NE 3 ft at 7 seconds. Patchy fog. A slight chance of showers. Vsby 1 NM or less.

THU
SW winds 20 to 25 kt, becoming W 15 to 20 kt in the afternoon. Gusts up to 30 kt. Seas 5 to 7 ft. Wave Detail: SW 5 ft at 5 seconds and SE 3 ft at 7 seconds. A chance of showers. Patchy fog in the morning with vsby 1 NM or less.

THU NIGHT
NW winds 20 to 25 kt. Seas 4 to 6 ft. Wave Detail: W 5 ft at 5 seconds and SE 3 ft at 8 seconds. A chance of showers in the evening.

FRI
W winds 10 to 15 kt, becoming SW 15 to 20 kt in the afternoon. Gusts up to 25 kt. Seas 4 to 6 ft. Wave Detail: SW 4 ft at 5 seconds and NW 4 ft at 5 seconds.

FRI NIGHT
S winds 20 to 25 kt with gusts up to 30 kt. Seas 5 to 7 ft. Wave Detail: S 6 ft at 5 seconds and SE 3 ft at 10 seconds.

SAT AND SAT NIGHT
W winds 20 to 25 kt with gusts up to 30 kt. Seas 5 to 7 ft. Wave Detail: SW 6 ft at 5 seconds and SE 3 ft at 8 seconds.

SUN
NW winds 15 to 20 kt. Seas 2 to 4 ft.

SUN NIGHT
SE winds 25 to 30 kt with gusts up to 35 kt. Seas 4 to 6 ft. A chance of rain.

MON
S winds around 30 kt with gusts up to 40 kt. Seas 8 to 11 ft. Rain.

MON NIGHT
SW winds 25 to 30 kt with gusts up to 40 kt. Seas 7 to 10 ft. Rain.

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.

ANZ251-121500
Massachusetts Bay and Ipswich Bay
1007 PM EDT Wed Mar 11 2026

OVERNIGHT
S winds 15 to 20 kt, increasing to 20 to 25 kt. Seas 3 to 4 ft. Wave Detail: SW 4 ft at 4 seconds and NE 3 ft at 6 seconds. Patchy fog. A chance of showers. Vsby 1 NM or less.

THU
SW winds around 20 kt, becoming W in the afternoon. Gusts up to 25 kt. Seas 3 to 4 ft. Wave Detail: S 4 ft at 5 seconds and W 3 ft at 4 seconds. A chance of showers. Patchy fog in the morning with vsby 1 NM or less.

THU NIGHT
W winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 3 ft. Wave Detail: NW 3 ft at 4 seconds and S 1 foot at 4 seconds. A chance of showers in the evening.

FRI
W winds 10 to 15 kt, becoming S 15 to 20 kt with gusts up to 25 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: NW 3 ft at 5 seconds and S 3 ft at 7 seconds.

FRI NIGHT
S winds 20 to 25 kt. Seas 3 to 4 ft. Wave Detail: SW 4 ft at 4 seconds and NE 1 foot at 5 seconds.

SAT AND SAT NIGHT
W winds 20 to 25 kt with gusts up to 30 kt. Seas 2 to 4 ft. Wave Detail: W 4 ft at 4 seconds and SE 3 ft at 6 seconds.

SUN
NW winds 10 to 15 kt. Seas around 2 ft.

SUN NIGHT
SE winds 25 to 30 kt. Seas 3 to 5 ft. Rain likely.

MON
S winds 25 to 30 kt with gusts up to 40 kt. Seas 6 to 9 ft. Rain.

MON NIGHT
SW winds 25 to 30 kt. Seas 5 to 8 ft. Rain.

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.

ANZ231-121500
Cape Cod Bay
1007 PM EDT Wed Mar 11 2026

OVERNIGHT
S winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 4 ft. Wave Detail: S 3 ft at 4 seconds and NE 1 foot at 5 seconds. Patchy fog. A slight chance of showers. Vsby 1 NM or less.

THU
SW winds 15 to 20 kt, becoming W in the afternoon. Gusts up to 25 kt. Seas 2 to 4 ft. Wave Detail: SW 3 ft at 5 seconds and SE 2 ft at 8 seconds. A chance of showers. Patchy fog in the morning with vsby 1 NM or less.

THU NIGHT
W winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 3 ft. Wave Detail: NW 3 ft at 4 seconds and E 2 ft at 7 seconds. A chance of showers in the evening.

FRI
W winds 10 to 15 kt, becoming SW 15 to 20 kt with gusts up to 25 kt in the afternoon. Seas 2 to 4 ft. Wave Detail: N 3 ft at 5 seconds and SW 2 ft at 7 seconds.

FRI NIGHT
S winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 4 ft. Wave Detail: S 3 ft at 4 seconds and SE 2 ft at 10 seconds.

SAT AND SAT NIGHT
W winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft. Wave Detail: SW 4 ft at 5 seconds and S 2 ft at 9 seconds.

SUN
NE winds 5 to 10 kt. Seas 2 to 3 ft.

SUN NIGHT
SE winds 25 to 30 kt. Seas 2 to 4 ft. A chance of rain.

MON AND MON NIGHT
S winds 25 to 30 kt, becoming SW. Gusts up to 40 kt. Seas 4 to 6 ft. Rain.

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.

ANZ254-121500
Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 nm
1007 PM EDT Wed Mar 11 2026

SMALL CRAFT ADVISORY IN EFFECT THROUGH FRIDAY MORNING

OVERNIGHT
S winds 20 to 25 kt with gusts up to 30 kt. Seas 4 to 5 ft, building to 5 to 7 ft. Wave Detail: S 5 ft at 5 seconds and E 2 ft at 7 seconds, becoming S 7 ft at 7 seconds and NE 2 ft at 7 seconds. Patchy fog, then patchy dense fog. A slight chance of showers. Vsby 1 NM or less.

THU
SW winds 20 to 25 kt, becoming W 15 to 20 kt in the afternoon. Gusts up to 30 kt. Seas 5 to 8 ft. Wave Detail: S 7 ft at 7 seconds and W 3 ft at 4 seconds. Patchy fog in the morning. A chance of showers in the afternoon. Vsby 1 NM or less in the morning.

THU NIGHT
NW winds 20 to 25 kt. Seas 5 to 7 ft. Wave Detail: N 5 ft at 5 seconds and S 4 ft at 8 seconds. A chance of showers in the evening.

FRI
W winds 15 to 20 kt, becoming SW in the afternoon. Gusts up to 25 kt. Seas 5 to 7 ft, subsiding to 3 to 5 ft in the afternoon. Wave Detail: NW 4 ft at 6 seconds and S 4 ft at 9 seconds, becoming S 4 ft at 9 seconds and N 3 ft at 6 seconds.

FRI NIGHT
S winds 20 to 25 kt with gusts up to 30 kt. Seas 4 to 6 ft, building to 5 to 8 ft after midnight. Wave Detail: S 5 ft at 5 seconds and SE 3 ft at 9 seconds, becoming S 7 ft at 7 seconds and SE 2 ft at 10 seconds.

SAT
SW winds 20 to 25 kt, becoming W 25 to 30 kt in the afternoon. Seas 6 to 9 ft, except 9 to 13 ft S and E of Nantucket. Wave Detail: S 7 ft at 9 seconds and W 4 ft at 5 seconds.

SAT NIGHT
W winds 20 to 25 kt with gusts up to 30 kt. Seas 5 to 7 ft.

SUN
NE winds 10 to 15 kt. Seas 3 to 5 ft.

SUN NIGHT
SE winds 25 to 30 kt with gusts up to 35 kt. Seas 4 to 6 ft. A chance of rain.

MON
S winds 25 to 30 kt with gusts up to 40 kt. Seas 7 to 10 ft. Rain.

MON NIGHT
SW winds 25 to 30 kt with gusts up to 40 kt. Seas 9 to 13 ft. Rain.

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.

ANZ255-121500
Coastal Waters extending out to 25 nm South of Marthas Vineyard and Nantucket
1007 PM EDT Wed Mar 11 2026

SMALL CRAFT ADVISORY IN EFFECT THROUGH FRIDAY MORNING

OVERNIGHT
S winds 20 to 25 kt, increasing to 25 to 30 kt. Seas 5 to 7 ft, building to 6 to 9 ft. Wave Detail: S 7 ft at 6 seconds and E 1 foot at 9 seconds, becoming S 9 ft at 7 seconds and NE 1 foot at 7 seconds. Patchy fog, then patchy dense fog. A slight chance of showers. Vsby 1 NM or less.

THU
SW winds 25 to 30 kt, becoming W 15 to 20 kt in the afternoon. Seas 7 to 10 ft. Wave Detail: S 9 ft at 7 seconds and W 2 ft at 4 seconds. Patchy fog. A chance of showers. Vsby 1 NM or less in the morning.

THU NIGHT
NW winds 20 to 25 kt. Seas 5 to 8 ft. Wave Detail: W 6 ft at 7 seconds and S 4 ft at 9 seconds. A chance of showers in the evening.

FRI
W winds 15 to 20 kt, becoming SW in the afternoon. Seas 5 to 7 ft, subsiding to 4 to 5 ft in the afternoon. Wave Detail: NW 5 ft at 6 seconds and S 4 ft at 9 seconds, becoming SW 4 ft at 7 seconds and SE 3 ft at 9 seconds.

FRI NIGHT
S winds 20 to 25 kt, becoming SW 25 to 30 kt after midnight. Seas 5 to 7 ft, building to 8 to 11 ft after midnight. Wave Detail: SW 7 ft at 6 seconds and SE 2 ft at 9 seconds, becoming SW 11 ft at 9 seconds and W 1 foot at 4 seconds.

SAT
W winds 25 to 30 kt. Seas 9 to 12 ft. Wave Detail: SW 11 ft at 10 seconds and W 2 ft at 4 seconds.

SAT NIGHT
W winds 20 to 25 kt, becoming NW 15 to 20 kt after midnight. Seas 6 to 9 ft, subsiding to 4 to 6 ft after midnight.

SUN
NE winds 10 to 15 kt. Seas 2 to 4 ft.

SUN NIGHT
SE winds 25 to 30 kt with gusts up to 40 kt. Seas 4 to 6 ft. A chance of rain.

MON
S winds 30 to 35 kt with gusts up to 40 kt. Seas 8 to 11 ft. Rain.

MON NIGHT
SW winds 25 to 35 kt with gusts up to 40 kt. Seas 9 to 13 ft. Rain.

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.

ANZ256-121500
Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 nm South of Block Island
1007 PM EDT Wed Mar 11 2026

SMALL CRAFT ADVISORY IN EFFECT THROUGH FRIDAY MORNING

OVERNIGHT
S winds 20 to 25 kt with gusts up to 30 kt. Seas 5 to 7 ft, building to 6 to 9 ft. Wave Detail: S 7 ft at 6 seconds and E 1 foot at 9 seconds, becoming S 8 ft at 7 seconds and E 1 foot at 8 seconds. Patchy fog. Patchy dense fog. A slight chance of showers. Vsby 1 NM or less.

THU
SW winds 20 to 25 kt, becoming NW 15 to 20 kt in the afternoon. Gusts up to 30 kt. Seas 6 to 9 ft. Wave Detail: S 8 ft at 7 seconds and NW 2 ft at 4 seconds. A chance of showers. Patchy fog in the morning with vsby 1 NM or less.

THU NIGHT
NW winds 20 to 25 kt. Seas 5 to 7 ft. Wave Detail: S 5 ft at 8 seconds and NW 4 ft at 4 seconds. A chance of showers in the evening.

FRI
W winds 10 to 15 kt, becoming SW 15 to 20 kt in the afternoon. Gusts up to 25 kt. Seas 4 to 6 ft. Wave Detail: W 5 ft at 7 seconds and S 4 ft at 9 seconds.

FRI NIGHT
S winds 20 to 25 kt, becoming SW 25 to 30 kt after midnight. Seas 5 to 8 ft, building to 9 to 12 ft after midnight. Wave Detail: SW 8 ft at 6 seconds and SE 2 ft at 9 seconds, becoming SW 11 ft at 9 seconds and SE 2 ft at 9 seconds.

SAT
W winds 25 to 30 kt. Seas 9 to 12 ft. Wave Detail: S 11 ft at 9 seconds and W 2 ft at 5 seconds.

SAT NIGHT
W winds 20 to 25 kt, becoming NW 15 to 20 kt after midnight. Seas 5 to 8 ft, subsiding to 4 to 6 ft after midnight.

SUN
E winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft.

SUN NIGHT
SE winds 25 to 30 kt with gusts up to 40 kt. Seas 4 to 6 ft. Rain likely.

MON
S winds 30 to 35 kt with gusts up to 40 kt. Seas 8 to 11 ft. Rain.

MON NIGHT
SW winds 25 to 30 kt with gusts up to 40 kt. Seas 9 to 13 ft. Rain.

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.

ANZ232-121500
Nantucket Sound
1007 PM EDT Wed Mar 11 2026

SMALL CRAFT ADVISORY IN EFFECT THROUGH THURSDAY EVENING

OVERNIGHT
S winds 20 to 25 kt with gusts up to 30 kt. Seas 3 to 4 ft, building to 4 to 6 ft. Wave Detail: SW 4 ft at 4 seconds and NE 1 foot at 5 seconds, becoming SW 5 ft at 5 seconds and NE 1 foot at 6 seconds. Patchy fog, then patchy dense fog. A slight chance of showers. Vsby 1 NM or less.

THU
SW winds 20 to 25 kt, becoming W 15 to 20 kt in the afternoon. Gusts up to 30 kt. Seas 4 to 6 ft. Wave Detail: SW 5 ft at 5 seconds and NE 1 foot at 7 seconds. Patchy fog. A chance of showers. Vsby 1 NM or less in the morning.

THU NIGHT
NW winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft. Wave Detail: NW 3 ft at 5 seconds and SW 2 ft at 8 seconds. A chance of showers in the evening.

FRI
W winds 10 to 15 kt, becoming SW 15 to 20 kt in the afternoon. Seas 2 to 4 ft. Wave Detail: SW 3 ft at 8 seconds and NW 2 ft at 5 seconds.

FRI NIGHT
S winds 15 to 20 kt, becoming SW 20 to 25 kt after midnight. Gusts up to 30 kt. Seas 4 to 6 ft. Wave Detail: SW 5 ft at 6 seconds and N 1 foot at 6 seconds.

SAT
W winds 20 to 25 kt with gusts up to 30 kt. Seas 5 to 7 ft. Wave Detail: SW 5 ft at 8 seconds and W 4 ft at 4 seconds.

SAT NIGHT
W winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 5 ft.

SUN
NE winds 5 to 10 kt. Seas around 2 ft.

SUN NIGHT
SE winds 25 to 30 kt. Seas 2 to 4 ft. A chance of rain.

MON AND MON NIGHT
S winds 25 to 30 kt, becoming SW. Gusts up to 40 kt. Seas 5 to 8 ft. Rain.

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.

ANZ233-121500
Vineyard Sound
1007 PM EDT Wed Mar 11 2026

SMALL CRAFT ADVISORY IN EFFECT THROUGH THURSDAY EVENING

OVERNIGHT
S winds 20 to 25 kt. Seas 4 to 6 ft. Wave Detail: SW 6 ft at 7 seconds and NE 1 foot at 6 seconds. Patchy fog. Patchy dense fog. A slight chance of showers. Vsby 1 NM or less.

THU
SW winds 20 to 25 kt, becoming NW 15 to 20 kt in the afternoon. Seas 5 to 7 ft. Wave Detail: SW 6 ft at 7 seconds and W 2 ft at 4 seconds. A chance of showers. Patchy fog in the morning with vsby 1 NM or less.

THU NIGHT
NW winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 5 ft. Wave Detail: SW 3 ft at 7 seconds and NW 2 ft at 4 seconds. A chance of rain and snow showers in the evening.

FRI
W winds 10 to 15 kt, becoming SW 15 to 20 kt with gusts up to 25 kt in the afternoon. Seas 2 to 4 ft. Wave Detail: SW 3 ft at 8 seconds and S 3 ft at 10 seconds.

FRI NIGHT
S winds 20 to 25 kt, becoming SW 25 to 30 kt after midnight. Seas 5 to 7 ft. Wave Detail: SW 7 ft at 8 seconds and SE 2 ft at 10 seconds.

SAT
W winds 20 to 25 kt, increasing to 25 to 30 kt in the afternoon. Seas 6 to 9 ft, subsiding to 5 to 7 ft in the afternoon. Wave Detail: SW 7 ft at 9 seconds and S 3 ft at 9 seconds, becoming SW 7 ft at 9 seconds and W 2 ft at 4 seconds.

SAT NIGHT
NW winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to 6 ft, subsiding to 2 to 4 ft after midnight.

SUN
E winds 5 to 10 kt. Seas around 2 ft.

SUN NIGHT
SE winds 25 to 30 kt with gusts up to 35 kt. Seas 2 to 4 ft. A chance of rain.

MON AND MON NIGHT
S winds 25 to 35 kt, becoming SW. Seas 6 to 9 ft. Rain.

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.

ANZ234-121500
Buzzards Bay
1007 PM EDT Wed Mar 11 2026

SMALL CRAFT ADVISORY IN EFFECT THROUGH THURSDAY AFTERNOON

OVERNIGHT
S winds 15 to 20 kt, becoming SW 20 to 25 kt. Seas 3 to 5 ft. Wave Detail: SW 5 ft at 6 seconds and NE 1 foot at 6 seconds. Patchy fog. Patchy dense fog. A slight chance of showers. Vsby 1 NM or less.

THU
SW winds 20 to 25 kt, becoming NW 15 to 20 kt in the afternoon. Seas 3 to 5 ft. Wave Detail: SW 5 ft at 7 seconds and W 2 ft at 4 seconds. A chance of showers. Patchy fog in the morning with vsby 1 NM or less.

THU NIGHT
W winds 15 to 20 kt. Seas 2 to 4 ft. Wave Detail: NW 2 ft at 5 seconds and SW 2 ft at 7 seconds. A chance of showers in the evening.

FRI
W winds 5 to 10 kt, becoming SW 15 to 20 kt with gusts up to 25 kt in the afternoon. Seas 2 to 4 ft. Wave Detail: SW 3 ft at 7 seconds and NW 2 ft at 5 seconds.

FRI NIGHT AND SAT
W winds 20 to 25 kt with gusts up to 30 kt. Seas 4 to 6 ft. Wave Detail: S 6 ft at 9 seconds and W 3 ft at 4 seconds.

SAT NIGHT
W winds 15 to 20 kt, becoming NW 10 to 15 kt after midnight. Gusts up to 25 kt. Seas 3 to 5 ft, subsiding to 2 to 3 ft after midnight. Wave Detail: SW 5 ft at 9 seconds and W 2 ft at 4 seconds, becoming SW 3 ft at 8 seconds and NW 2 ft at 4 seconds.

SUN
E winds 5 to 10 kt. Seas around 2 ft.

SUN NIGHT
SE winds 25 to 30 kt with gusts up to 35 kt. Seas 2 to 4 ft. A chance of rain.

MON
S winds 25 to 35 kt with gusts up to 45 kt. Seas 4 to 6 ft. Rain.

MON NIGHT
SW winds 25 to 30 kt with gusts up to 40 kt. Seas 5 to 7 ft. Rain.

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.

ANZ235-121500
Rhode Island Sound
1007 PM EDT Wed Mar 11 2026

SMALL CRAFT ADVISORY IN EFFECT THROUGH FRIDAY MORNING

OVERNIGHT
SW winds 20 to 25 kt with gusts up to 30 kt. Seas 5 to 7 ft. Wave Detail: S 7 ft at 7 seconds and E 1 foot at 8 seconds. Patchy fog. Patchy dense fog. A slight chance of showers. Vsby 1 NM or less.

THU
SW winds 20 to 25 kt, becoming NW 15 to 20 kt in the afternoon. Seas 5 to 8 ft. Wave Detail: S 8 ft at 7 seconds and W 2 ft at 4 seconds. A chance of showers. Patchy fog in the morning with vsby 1 NM or less.

THU NIGHT
NW winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to 6 ft. Wave Detail: S 5 ft at 8 seconds and W 3 ft at 4 seconds. A chance of showers in the evening.

FRI
W winds 10 to 15 kt, becoming SW 15 to 20 kt with gusts up to 25 kt in the afternoon. Seas 3 to 5 ft. Wave Detail: SW 4 ft at 8 seconds and S 3 ft at 10 seconds.

FRI NIGHT
S winds 20 to 25 kt, becoming SW 25 to 30 kt after midnight. Seas 5 to 7 ft, building to 6 to 9 ft after midnight. Wave Detail: SW 7 ft at 6 seconds and SE 3 ft at 9 seconds, becoming S 9 ft at 9 seconds and SE 4 ft at 9 seconds.

SAT
W winds 20 to 25 kt with gusts up to 30 kt. Seas 7 to 10 ft. Wave Detail: S 10 ft at 10 seconds and W 3 ft at 5 seconds.

SAT NIGHT
NW winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to 6 ft, subsiding to 2 to 4 ft after midnight.

SUN
E winds 10 to 15 kt. Seas 2 to 3 ft.

SUN NIGHT
SE winds 25 to 30 kt with gusts up to 35 kt. Seas 4 to 6 ft. Rain likely.

MON
S winds 30 to 35 kt with gusts up to 45 kt. Seas 7 to 10 ft. Rain.

MON NIGHT
SW winds 25 to 30 kt with gusts up to 40 kt. Seas 8 to 11 ft. Rain.

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.

ANZ237-121500
Block Island Sound
1007 PM EDT Wed Mar 11 2026

SMALL CRAFT ADVISORY IN EFFECT THROUGH FRIDAY MORNING

OVERNIGHT
SW winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to 6 ft. Wave Detail: S 5 ft at 7 seconds and W 1 foot at 4 seconds. Patchy fog, then patchy dense fog. A slight chance of showers, then a chance of showers. Vsby 1 NM or less.

THU
SW winds 15 to 20 kt, becoming NW in the afternoon. Gusts up to 25 kt. Seas 5 to 7 ft. Wave Detail: S 5 ft at 7 seconds and W 2 ft at 4 seconds. A chance of showers. Patchy fog in the morning with vsby 1 NM or less.

THU NIGHT
NW winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 5 ft. Wave Detail: S 4 ft at 8 seconds and W 3 ft at 4 seconds. A chance of showers in the evening.

FRI
W winds 5 to 10 kt, becoming SW 15 to 20 kt with gusts up to 25 kt in the afternoon. Seas 3 to 4 ft. Wave Detail: S 3 ft at 8 seconds and S 3 ft at 9 seconds.

FRI NIGHT
SW winds 20 to 25 kt with gusts up to 30 kt. Seas 4 to 6 ft, building to 5 to 8 ft after midnight. Wave Detail: SW 6 ft at 6 seconds and SE 3 ft at 9 seconds, becoming S 7 ft at 8 seconds and SE 5 ft at 9 seconds.

SAT
W winds 20 to 25 kt with gusts up to 30 kt. Seas 6 to 9 ft, subsiding to 5 to 7 ft in the afternoon. Wave Detail: S 6 ft at 9 seconds and W 4 ft at 5 seconds, becoming S 5 ft at 10 seconds and W 4 ft at 5 seconds.

SAT NIGHT
W winds 15 to 20 kt, becoming NW 10 to 15 kt after midnight. Seas 3 to 5 ft.

SUN
E winds 10 to 15 kt. Seas around 2 ft.

SUN NIGHT
SE winds 25 to 30 kt with gusts up to 35 kt. Seas 4 to 6 ft. Rain likely.

MON
S winds 25 to 30 kt with gusts up to 40 kt. Seas 6 to 9 ft. Rain.

MON NIGHT
SW winds 25 to 30 kt with gusts up to 40 kt. Seas 7 to 10 ft. Rain.

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.

ANZ230-121500
Boston Harbor
1007 PM EDT Wed Mar 11 2026

OVERNIGHT
S winds 15 to 20 kt, increasing to 20 to 25 kt. Waves around 2 ft. Patchy fog. A chance of showers. Vsby 1 to 3 NM, decreasing to 1 NM or less.

THU
SW winds 15 to 20 kt, becoming W in the afternoon. Gusts up to 25 kt. Waves around 2 ft. A chance of showers. Patchy fog in the morning with vsby 1 to 3 NM.

THU NIGHT
W winds 15 to 20 kt. Waves around 2 ft. A chance of showers in the evening.

FRI
W winds 10 to 15 kt, becoming SW 15 to 20 kt with gusts up to 25 kt in the afternoon. Waves around 2 ft.

FRI NIGHT
S winds 20 to 25 kt. Waves around 2 ft.

SAT AND SAT NIGHT
W winds 25 to 30 kt. Waves around 2 ft.

SUN
N winds 5 to 10 kt. Waves 1 foot or less.

SUN NIGHT
SE winds 20 to 25 kt with gusts up to 30 kt. Waves 2 to 3 ft. Rain likely.

MON AND MON NIGHT
S winds 25 to 30 kt, becoming SW. Waves around 2 ft, except 4 to 6 ft at the outer harbor entrance. Rain.

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.

ANZ236-121500
Narragansett Bay
1007 PM EDT Wed Mar 11 2026

OVERNIGHT
S winds 15 to 20 kt with gusts up to 25 kt. Waves 3 to 5 ft. Patchy fog. A slight chance of showers. Vsby 1 NM or less.

THU
SW winds 15 to 20 kt, becoming NW in the afternoon. Gusts up to 25 kt. Waves 3 to 5 ft, subsiding to 2 to 3 ft in the afternoon. A chance of showers. Patchy fog in the morning with vsby 1 NM or less.

THU NIGHT
NW winds 10 to 15 kt with gusts up to 20 kt. Waves 2 to 3 ft. A chance of showers in the evening.

FRI
W winds 5 to 10 kt, becoming SW 15 to 20 kt with gusts up to 25 kt in the afternoon. Waves 2 to 3 ft.

FRI NIGHT
SW winds 20 to 25 kt with gusts up to 30 kt. Waves 4 to 6 ft.

SAT
W winds 20 to 25 kt with gusts up to 30 kt. Waves 4 to 6 ft.

SAT NIGHT
W winds 15 to 20 kt, becoming NW 5 to 10 kt after midnight. Waves 2 to 3 ft.

SUN
E winds 5 to 10 kt. Waves around 2 ft.

SUN NIGHT
SE winds 20 to 25 kt with gusts up to 35 kt. Waves 3 to 5 ft. Rain likely.

MON
S winds 25 to 30 kt with gusts up to 40 kt. Waves 5 to 8 ft. Rain.

MON NIGHT
SW winds 20 to 25 kt with gusts up to 35 kt. Waves 5 to 7 ft. Rain.

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.

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