FZUS51 KBOX 180503
CWFBOX
Coastal Waters Forecast for Massachusetts and Rhode Island
National Weather Service Boston/Norton MA
103 AM EDT Sat May 18 2024
Coastal waters from the Merrimack River MA to Watch Hill RI outto 25 NM
ANZ200-181800
103 AM EDT Sat May 18 2024
Synopsis for Massachusetts and Rhode Island coastal waters
Shower chances increase overnight tonight and Saturday as lowpressure shifts back north. High pressure builds in late thisweekend with dry conditions persisting through early next week.
ANZ250-181800
Coastal waters east of Ipswich Bay and the Stellwagen BankNational Marine Sanctuary
103 AM EDT Sat May 18 2024
SMALL CRAFT ADVISORY IN EFFECT THROUGH SUNDAY MORNING
REST OF TONIGHT
NE winds around 15 kt with gusts up to 20 kt.Seas 5 to 6 ft. Wave Detail: E 6 ft at 9 seconds. Patchy fog. Achance of rain. Vsby 1 to 3 NM.
SAT
NE winds 15 to 20 kt. Seas 5 to 6 ft. Wave Detail: E 6 ftat 9 seconds. Patchy fog. A chance of rain. Vsby 1 to 3 NM.
SAT NIGHT
NE winds around 15 kt with gusts up to 20 kt. Seas5 to 6 ft. Wave Detail: E 6 ft at 8 seconds. Patchy fog. A chanceof rain. Vsby 1 to 3 NM in the evening.
SUN
NE winds 10 to 15 kt with gusts up to 20 kt. Seas 4 to6 ft. Wave Detail: E 5 ft at 8 seconds. Patchy fog in the morningwith vsby 1 to 3 NM.
SUN NIGHT AND MON
NE winds 5 to 10 kt. Seas 4 to 5 ft. WaveDetail: E 5 ft at 8 seconds.
MON NIGHT
SE winds 5 to 10 kt, becoming S after midnight. Seas3 to 4 ft. Wave Detail: E 4 ft at 8 seconds.
TUE THROUGH WED NIGHT
SW winds 10 to 15 kt with gusts up to20 kt. Seas 2 to 4 ft.
Seas are reported as significant wave height, which is theaverage of the highest third of the waves. Individual waveheights may be more than twice the significant wave height.
ANZ251-181800
Massachusetts Bay and Ipswich Bay
103 AM EDT Sat May 18 2024
REST OF TONIGHT
NE winds 10 to 15 kt with gusts up to 20 kt.Seas 3 to 5 ft. Wave Detail: E 5 ft at 9 seconds. Patchy fog. Achance of rain.
SAT
NE winds around 15 kt with gusts up to 20 kt. Seas 3 to5 ft. Wave Detail: E 5 ft at 9 seconds. Patchy fog. A chance ofrain. Vsby 1 to 3 NM.
SAT NIGHT
NE winds 10 to 15 kt with gusts up to 20 kt. Seas3 to 5 ft. Wave Detail: E 5 ft at 9 seconds. Patchy fog. A chanceof rain. Vsby 1 to 3 NM in the evening.
SUN
NE winds 10 to 15 kt with gusts up to 20 kt. Seas 4 to5 ft. Wave Detail: E 5 ft at 8 seconds. Patchy fog in themorning.
SUN NIGHT AND MON
E winds 5 to 10 kt. Seas 3 to 5 ft. WaveDetail: E 4 ft at 8 seconds.
MON NIGHT
SE winds 5 to 10 kt, becoming S after midnight. Seas2 to 3 ft. Wave Detail: E 3 ft at 8 seconds.
TUE THROUGH WED NIGHT
SW winds 10 to 15 kt with gusts up to20 kt. Seas 2 to 3 ft.
Seas are reported as significant wave height, which is theaverage of the highest third of the waves. Individual waveheights may be more than twice the significant wave height.
ANZ231-181800
Cape Cod Bay
103 AM EDT Sat May 18 2024
REST OF TONIGHT
NE winds around 15 kt with gusts up to 20 kt.Seas 2 to 4 ft. Wave Detail: N 2 ft at 4 seconds. Patchy fog. Achance of rain. Vsby 1 to 3 NM.
SAT
NE winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to4 ft. Wave Detail: N 2 ft at 4 seconds. Patchy fog. A chance ofrain. Vsby 1 to 3 NM.
SAT NIGHT
NE winds 10 to 15 kt with gusts up to 20 kt. Seas2 to 4 ft. Wave Detail: N 2 ft at 4 seconds. Patchy fog. A chanceof rain. Vsby 1 to 3 NM in the evening.
SUN
NE winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to4 ft. Wave Detail: N 2 ft at 4 seconds. Patchy fog in the morningwith vsby 1 to 3 NM.
SUN NIGHT AND MON
NE winds 5 to 10 kt. Seas 2 to 4 ft. WaveDetail: N 2 ft at 4 seconds.
MON NIGHT
E winds around 5 kt, becoming S after midnight. Seasaround 2 ft. Wave Detail: NE 2 ft at 6 seconds.
TUE THROUGH WED NIGHT
SW winds 10 to 15 kt with gusts up to20 kt. Seas around 2 ft.
Seas are reported as significant wave height, which is theaverage of the highest third of the waves. Individual waveheights may be more than twice the significant wave height.
ANZ254-181800
Coastal waters from Provincetown MA to Chatham MA to Nantucket MAout 20 nm
103 AM EDT Sat May 18 2024
SMALL CRAFT ADVISORY IN EFFECT THROUGH SUNDAY MORNING
REST OF TONIGHT
NE winds 15 to 20 kt with gusts up to 25 kt.Seas 6 to 8 ft. Wave Detail: E 8 ft at 9 seconds. Patchy fog. Achance of rain. Vsby 1 NM or less.
SAT
NE winds around 15 kt with gusts up to 20 kt. Seas 5 to7 ft. Wave Detail: E 7 ft at 9 seconds. Patchy fog. A chance ofrain. Vsby 1 NM or less, increasing to 1 to 3 NM in theafternoon.
SAT NIGHT
NE winds 10 to 15 kt with gusts up to 20 kt. Seas4 to 6 ft. Wave Detail: E 6 ft at 8 seconds. Patchy fog. A chanceof rain. Vsby 1 to 3 NM.
SUN
NE winds 10 to 15 kt with gusts up to 20 kt. Seas 4 to6 ft. Wave Detail: E 5 ft at 8 seconds. Patchy fog in the morningwith vsby 1 to 3 NM.
SUN NIGHT AND MON
NE winds 10 to 15 kt with gusts up to 20 kt.Seas 4 to 6 ft. Wave Detail: E 5 ft at 8 seconds.
MON NIGHT
E winds 5 to 10 kt, becoming SE after midnight. Seas3 to 5 ft. Wave Detail: E 4 ft at 8 seconds.
TUE THROUGH WED NIGHT
SW winds 10 to 15 kt with gusts up to20 kt. Seas 2 to 4 ft.
Seas are reported as significant wave height, which is theaverage of the highest third of the waves. Individual waveheights may be more than twice the significant wave height.
ANZ255-181800
Coastal Waters extending out to 25 nm South of Marthas Vineyardand Nantucket
103 AM EDT Sat May 18 2024
SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING
REST OF TONIGHT
NE winds 15 to 20 kt with gusts up to 25 kt.Seas 5 to 7 ft. Wave Detail: E 6 ft at 9 seconds. Patchy fog. Achance of rain. Vsby 1 NM or less.
SAT
NE winds around 15 kt with gusts up to 20 kt. Seas 4 to6 ft. Wave Detail: NE 6 ft at 9 seconds. Patchy fog. Vsby 1 NM orless, increasing to 1 to 3 NM in the afternoon.
SAT NIGHT
NE winds 10 to 15 kt with gusts up to 20 kt. Seas3 to 5 ft. Wave Detail: NE 5 ft at 8 seconds and N 1 foot at4 seconds. Patchy fog. A chance of rain after midnight. Vsby 1 to3 NM in the evening.
SUN
NE winds 15 to 20 kt. Seas 3 to 5 ft. Wave Detail: NE 5 ftat 7 seconds and N 1 foot at 4 seconds. Patchy fog in the morningwith vsby 1 to 3 NM.
SUN NIGHT AND MON
NE winds 15 to 20 kt. Seas 3 to 5 ft. WaveDetail: NE 5 ft at 7 seconds.
MON NIGHT
NE winds 5 to 10 kt. Seas 2 to 4 ft. Wave Detail: NE4 ft at 8 seconds.
TUE THROUGH WED NIGHT
SW winds 10 to 15 kt with gusts up to20 kt. Seas 2 to 3 ft.
Seas are reported as significant wave height, which is theaverage of the highest third of the waves. Individual waveheights may be more than twice the significant wave height.
ANZ256-181800
Coastal Waters from Montauk NY to Marthas Vineyard extending outto 20 nm South of Block Island
103 AM EDT Sat May 18 2024
SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING
REST OF TONIGHT
N winds around 15 kt with gusts up to 20 kt.Seas 4 to 6 ft. Wave Detail: E 6 ft at 9 seconds. Patchy fog. Achance of rain. Vsby 1 NM or less.
SAT
N winds 10 to 15 kt with gusts up to 20 kt. Seas 4 to6 ft. Wave Detail: E 6 ft at 9 seconds. Patchy fog. Vsby 1 NM orless, increasing to 1 to 3 NM in the afternoon.
SAT NIGHT
NE winds 10 to 15 kt with gusts up to 20 kt. Seas3 to 4 ft. Wave Detail: E 4 ft at 9 seconds. Patchy fog. Vsby1 to 3 NM after midnight.
SUN
NE winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to4 ft. Wave Detail: NE 4 ft at 8 seconds and N 1 foot at4 seconds. Patchy fog in the morning with vsby 1 to 3 NM.
SUN NIGHT AND MON
NE winds 10 to 15 kt with gusts up to 20 kt.Seas 2 to 4 ft. Wave Detail: NE 4 ft at 8 seconds.
MON NIGHT
E winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E3 ft at 8 seconds.
TUE THROUGH WED NIGHT
SW winds 10 to 15 kt. Seas 2 to 3 ft.
Seas are reported as significant wave height, which is theaverage of the highest third of the waves. Individual waveheights may be more than twice the significant wave height.
ANZ232-181800
Nantucket Sound
103 AM EDT Sat May 18 2024
REST OF TONIGHT
NE winds 15 to 20 kt with gusts up to 25 kt.Seas 3 to 5 ft. Wave Detail: NE 4 ft at 6 seconds. Patchy fog. Achance of rain. Vsby 1 NM or less.
SAT
NE winds around 15 kt with gusts up to 20 kt. Seas 2 to4 ft. Wave Detail: NE 4 ft at 8 seconds. Patchy fog. A chance ofrain in the morning. Vsby 1 NM or less, increasing to 1 to 3 NMin the afternoon.
SAT NIGHT
NE winds 10 to 15 kt with gusts up to 20 kt. Seas2 to 4 ft. Wave Detail: NE 3 ft at 7 seconds. Patchy fog. Achance of rain. Vsby 1 to 3 NM.
SUN
NE winds around 15 kt with gusts up to 20 kt. Seas 2 to3 ft. Wave Detail: NE 3 ft at 5 seconds. Patchy fog in themorning with vsby 1 to 3 NM.
SUN NIGHT AND MON
NE winds 10 to 15 kt with gusts up to 20 kt.Seas 2 to 3 ft. Wave Detail: NE 3 ft at 5 seconds.
MON NIGHT
E winds 5 to 10 kt, becoming S after midnight. Seasaround 2 ft. Wave Detail: E 2 ft at 8 seconds.
TUE THROUGH WED NIGHT
SW winds 10 to 15 kt with gusts up to20 kt. Seas around 2 ft.
Seas are reported as significant wave height, which is theaverage of the highest third of the waves. Individual waveheights may be more than twice the significant wave height.
ANZ233-181800
Vineyard Sound
103 AM EDT Sat May 18 2024
REST OF TONIGHT
NE winds 10 to 15 kt with gusts up to 20 kt.Seas 2 to 3 ft. Wave Detail: NE 2 ft at 4 seconds. Patchy fog. Achance of rain. Vsby 1 to 3 NM.
SAT
NE winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to3 ft. Wave Detail: NE 2 ft at 4 seconds. Patchy fog. A chance ofrain in the morning. Vsby 1 to 3 NM.
SAT NIGHT
NE winds 10 to 15 kt with gusts up to 20 kt. Seasaround 2 ft. Wave Detail: N 2 ft at 4 seconds. Patchy fog. Achance of rain after midnight. Vsby 1 to 3 NM in the evening.
SUN
NE winds 10 to 15 kt with gusts up to 20 kt. Seas around2 ft. Wave Detail: N 2 ft at 5 seconds. Patchy fog in the morningwith vsby 1 to 3 NM.
SUN NIGHT AND MON
NE winds 10 to 15 kt with gusts up to 20 kt.Seas around 2 ft. Wave Detail: NE 2 ft at 4 seconds.
MON NIGHT
E winds 5 to 10 kt, becoming S after midnight. Seas1 foot or less. Wave Detail: E 1 foot at 6 seconds.
TUE THROUGH WED NIGHT
SW winds 10 to 15 kt with gusts up to20 kt. Seas around 2 ft.
Seas are reported as significant wave height, which is theaverage of the highest third of the waves. Individual waveheights may be more than twice the significant wave height.
ANZ234-181800
Buzzards Bay
103 AM EDT Sat May 18 2024
REST OF TONIGHT
NE winds 10 to 15 kt with gusts up to 20 kt.Seas around 2 ft. Wave Detail: NE 2 ft at 3 seconds. Patchy fog.A chance of rain. Vsby 1 to 3 NM.
SAT
NE winds 10 to 15 kt with gusts up to 20 kt. Seas around2 ft. Wave Detail: NE 2 ft at 3 seconds. Patchy fog. A chance ofrain in the morning. Vsby 1 to 3 NM.
SAT NIGHT
NE winds 10 to 15 kt with gusts up to 20 kt. Seasaround 2 ft. Wave Detail: N 1 foot at 4 seconds. Patchy fog. Vsby1 to 3 NM in the evening.
SUN
NE winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to3 ft. Wave Detail: N 2 ft at 4 seconds. Patchy fog in the morningwith vsby 1 to 3 NM.
SUN NIGHT AND MON
NE winds 10 to 15 kt with gusts up to 20 kt.Seas 2 to 3 ft. Wave Detail: NE 2 ft at 3 seconds.
MON NIGHT
E winds 5 to 10 kt, becoming SW after midnight. Seasaround 2 ft in the evening, then 1 foot or less. Wave Detail: E1 foot at 2 seconds and E 1 foot at 6 seconds, becoming S 1 footat 2 seconds and E 1 foot at 8 seconds.
TUE THROUGH WED NIGHT
SW winds 10 to 15 kt with gusts up to20 kt. Seas around 2 ft.
Seas are reported as significant wave height, which is theaverage of the highest third of the waves. Individual waveheights may be more than twice the significant wave height.
ANZ235-181800
Rhode Island Sound
103 AM EDT Sat May 18 2024
REST OF TONIGHT
N winds 10 to 15 kt with gusts up to 20 kt.Seas 3 to 4 ft. Wave Detail: NE 4 ft at 7 seconds. Patchy fog. Achance of rain. Vsby 1 to 3 NM.
SAT
N winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to4 ft. Wave Detail: NE 4 ft at 7 seconds. Patchy fog. Vsby 1 to3 NM in the morning.
SAT NIGHT
NE winds 10 to 15 kt with gusts up to 20 kt. Seas2 to 3 ft. Wave Detail: NE 3 ft at 7 seconds and N 1 foot at4 seconds. Patchy fog.
SUN
NE winds around 15 kt with gusts up to 20 kt. Seas 2 to3 ft. Wave Detail: N 3 ft at 5 seconds. Patchy fog in the morningwith vsby 1 to 3 NM.
SUN NIGHT AND MON
E winds 10 to 15 kt with gusts up to 20 kt.Seas 2 to 3 ft. Wave Detail: NE 3 ft at 5 seconds and SW 1 footat 7 seconds.
MON NIGHT
E winds 5 to 10 kt, becoming SW after midnight. Seasaround 2 ft. Wave Detail: E 2 ft at 7 seconds and E 1 foot at3 seconds.
TUE THROUGH WED NIGHT
SW winds 10 to 15 kt with gusts up to20 kt. Seas 2 to 3 ft.
Seas are reported as significant wave height, which is theaverage of the highest third of the waves. Individual waveheights may be more than twice the significant wave height.
ANZ237-181800
Block Island Sound
103 AM EDT Sat May 18 2024
REST OF TONIGHT
N winds 10 to 15 kt with gusts up to 20 kt.Seas 3 to 4 ft. Wave Detail: E 4 ft at 8 seconds. Patchy fog. Aslight chance of rain.
SAT
NE winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to4 ft. Wave Detail: E 4 ft at 9 seconds. Patchy fog. Vsby 1 to3 NM in the morning.
SAT NIGHT
NE winds 10 to 15 kt with gusts up to 20 kt. Seas2 to 3 ft. Wave Detail: E 3 ft at 9 seconds. Patchy fog. Vsby1 to 3 NM after midnight.
SUN
NE winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to3 ft. Wave Detail: NE 3 ft at 8 seconds. Patchy fog in themorning.
SUN NIGHT
NE winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail:NE 3 ft at 6 seconds.
MON AND MON NIGHT
SW winds 5 to 10 kt. Seas 2 to 3 ft. WaveDetail: NE 2 ft at 6 seconds.
TUE THROUGH WED NIGHT
SW winds 10 to 15 kt. Seas 2 to 3 ft.
Seas are reported as significant wave height, which is theaverage of the highest third of the waves. Individual waveheights may be more than twice the significant wave height.
ANZ230-181800
Boston Harbor
103 AM EDT Sat May 18 2024
REST OF TONIGHT
NE winds 10 to 15 kt with gusts up to 20 kt.Waves around 2 ft. A chance of rain.
SAT
NE winds 10 to 15 kt with gusts up to 20 kt. Waves 2 to3 ft. Patchy fog. A chance of rain.
SAT NIGHT
NE winds 10 to 15 kt. Gusts up to 20 kt in theevening. Waves 2 to 3 ft. Patchy fog. A chance of rain.
SUN
NE winds 10 to 15 kt with gusts up to 20 kt. Waves 2 to3 ft. Patchy fog in the morning.
SUN NIGHT
NE winds 5 to 10 kt. Waves around 2 ft in theevening, then 1 foot or less.
MON AND MON NIGHT
SW winds 5 to 10 kt. Waves 1 foot or less.
TUE THROUGH WED NIGHT
SW winds 10 to 15 kt with gusts up to20 kt. Waves around 2 ft.
Seas are reported as significant wave height, which is theaverage of the highest third of the waves. Individual waveheights may be more than twice the significant wave height.
ANZ236-181800
Narragansett Bay
103 AM EDT Sat May 18 2024
REST OF TONIGHT
N winds 10 to 15 kt with gusts up to 20 kt.Waves around 2 ft. Patchy fog. A chance of rain.
SAT
NE winds 10 to 15 kt with gusts up to 20 kt. Waves around2 ft. Patchy fog. Vsby 1 to 3 NM in the morning.
SAT NIGHT
N winds 10 to 15 kt with gusts up to 20 kt. Wavesaround 2 ft. Patchy fog.
SUN
NE winds 10 to 15 kt with gusts up to 20 kt. Waves 2 to3 ft. Patchy fog in the morning with vsby 1 to 3 NM.
SUN NIGHT AND MON
NE winds 10 to 15 kt. Waves 2 to 3 ft.
MON NIGHT
SE winds 5 to 10 kt, becoming SW after midnight.Waves around 2 ft.
TUE THROUGH WED NIGHT
SW winds 10 to 15 kt with gusts up to20 kt. Waves around 2 ft.
Seas are reported as significant wave height, which is theaverage of the highest third of the waves. Individual waveheights may be more than twice the significant wave height.
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