fzus51 kbox 130505
cwfbox
expires:202605131800;;470780

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
105 am edt wed may 13 2026

coastal waters from the merrimack river ma to watch hill ri out
to 60 nm


anz230-131800-
boston harbor-
105 am edt wed may 13 2026

...small craft advisory in effect from 11 am edt this morning
through this evening...

.rest of tonight...sw winds around 5 kt. waves 1 foot or less. 
.wed...s winds 5 to 10 kt, increasing to 15 to 20 kt with gusts
up to 25 kt in the afternoon. waves around 2 ft. 
.wed night...s winds 15 to 20 kt, diminishing to 10 to 15 kt
after midnight. gusts up to 25 kt. waves around 2 ft. 
.thu...se winds 10 to 15 kt with gusts up to 20 kt. waves 2 to
3 ft. patchy fog. showers. vsby 1 to 3 nm in the afternoon. 
.thu night...e winds 10 to 15 kt. waves around 2 ft in the
evening, then 1 foot or less. showers. patchy fog in the evening
with vsby 1 to 3 nm. 
.fri...ne winds around 10 kt. waves around 2 ft. showers.
.fri night...nw winds 5 to 10 kt, becoming w after midnight.
waves 1 foot or less. 
.sat through sun night...nw winds 10 to 15 kt with gusts up to
20 kt. waves around 2 ft.  

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.

$$

fzus51 kbox 130505
cwfbox
expires:202605131800;;470769

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
105 am edt wed may 13 2026

coastal waters from the merrimack river ma to watch hill ri out
to 60 nm


anz250-131800-
coastal waters east of ipswich bay and the stellwagen bank
national marine sanctuary-
105 am edt wed may 13 2026

...small craft advisory in effect from 11 am edt this morning
through this evening...

.rest of tonight...sw winds 5 to 10 kt. seas 2 to 3 ft. wave
detail: se 2 ft at 7 seconds and sw 1 foot at 3 seconds. 
.wed...s winds 5 to 10 kt with gusts up to 20 kt, increasing to
15 to 20 kt with gusts up to 30 kt in the afternoon. seas 2 to
4 ft. wave detail: sw 4 ft at 4 seconds and ne 3 ft at 4 seconds.
.wed night...s winds 15 to 20 kt. gusts up to 30 kt, decreasing
to 20 kt after midnight. seas 3 to 4 ft. wave detail: s 4 ft at
5 seconds and e 1 foot at 4 seconds. 
.thu...se winds around 15 kt with gusts up to 25 kt. seas around
3 ft. wave detail: se 3 ft at 6 seconds and sw 1 foot at
3 seconds. patchy fog. a chance of showers in the morning, then
showers in the afternoon. vsby 1 to 3 nm, decreasing to 1 nm or
less in the afternoon. 
.thu night...e winds 10 to 15 kt with gusts up to 20 kt. seas
3 to 4 ft. wave detail: e 4 ft at 10 seconds and e 3 ft at
5 seconds. showers. patchy fog in the evening with vsby 1 nm or
less. 
.fri...ne winds 10 to 15 kt. gusts up to 20 kt in the morning.
seas 3 to 4 ft. wave detail: e 4 ft at 10 seconds and e 3 ft at
6 seconds. showers.
.fri night...n winds 5 to 10 kt, becoming w after midnight. seas
3 to 4 ft. a chance of showers in the evening. 
.sat through sun night...nw winds 15 to 20 kt with gusts up to
25 kt. seas 2 to 4 ft.  

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.

$$