fzus51 kbox 260504
cwfbox
expires:202609261800;;066829

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
103 am edt sat sep 26 2026

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


anz230-261800-
boston harbor-
103 am edt sat sep 26 2026

...storm warning in effect through this evening...

.rest of tonight...ne winds 20 to 25 kt with gusts up to 35 kt.
waves 2 to 3 ft, except 4 to 6 ft at the outer harbor entrance.
showers likely. 
.sat...ne winds 20 to 25 kt, increasing to 25 to 30 kt in the
afternoon. gusts up to 50 kt. waves 2 to 3 ft, except 5 to 7 ft
at the outer harbor entrance. patchy fog. showers. a chance of
tstms in the afternoon. vsby 1 to 3 nm, decreasing to 1 nm or
less in the afternoon. 
.sat night...ne winds 25 to 30 kt with gusts up to 50 kt. waves
2 to 3 ft, except 5 to 7 ft at the outer harbor entrance. patchy
fog. showers. vsby 1 nm or less, increasing to 1 to 3 nm after
midnight. 
.sun...ne winds 20 to 25 kt with gusts up to 45 kt. waves 2 to
3 ft, except 4 to 6 ft at the outer harbor entrance. patchy fog.
showers. vsby 1 to 3 nm. 
.sun night...ne winds 15 to 20 kt with gusts up to 35 kt. waves
2 to 3 ft, except 4 to 6 ft at the outer harbor entrance.
showers. patchy fog in the evening with vsby 1 to 3 nm. 
.mon...ne winds 15 to 20 kt with gusts up to 25 kt. waves 2 to
3 ft, except 4 to 6 ft at the outer harbor entrance. showers in
the morning, then rain in the afternoon. 
.mon night...ne winds 10 to 15 kt with gusts up to 20 kt,
diminishing to 5 to 10 kt after midnight. waves 2 to 3 ft in the
evening, then 1 foot or less. at the outer harbor entrance, waves
2 to 4 ft. rain in the evening, then showers likely after
midnight. 
.tue...n winds 5 to 10 kt. waves 1 foot or less, except 2 to 4 ft
at the outer harbor entrance. a chance of showers. 
.tue night through wed night...sw winds around 5 kt. waves 1 foot
or less.  

winds and waves 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.

$$

fzus51 kbox 260504
cwfbox
expires:202609261800;;066818

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
103 am edt sat sep 26 2026

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


anz250-261800-
coastal waters east of ipswich bay and the stellwagen bank
national marine sanctuary-
103 am edt sat sep 26 2026

...storm warning in effect through this evening...

.rest of tonight...ne winds 25 to 30 kt with gusts up to 45 kt.
seas 14 to 19 ft. wave detail: e 15 ft at 12 seconds and n 2 ft
at 5 seconds. patchy fog. showers likely. 
.sat...ne winds 25 to 30 kt with gusts up to 50 kt. seas 15 to
20 ft. wave detail: e 13 ft at 11 seconds and nw 2 ft at
5 seconds. patchy fog. showers. a chance of tstms in the
afternoon. vsby 1 nm or less. 
.sat night...ne winds around 30 kt with gusts up to 50 kt. seas
13 to 17 ft. wave detail: e 13 ft at 10 seconds and se 3 ft at
11 seconds. patchy fog. showers. vsby 1 nm or less, increasing to
1 to 3 nm after midnight. 
.sun...ne winds 25 to 30 kt with gusts up to 50 kt. seas 11 to
15 ft. wave detail: e 13 ft at 9 seconds and s 3 ft at 9 seconds.
patchy fog. showers likely. vsby 1 to 3 nm. 
.sun night...ne winds 20 to 25 kt. gusts up to 40 kt, decreasing
to 30 kt after midnight. seas 9 to 13 ft, subsiding to 8 to 10 ft
after midnight. wave detail: e 10 ft at 9 seconds and se 2 ft at
9 seconds, becoming e 9 ft at 9 seconds and se 2 ft at 9 seconds.
showers. patchy fog in the evening with vsby 1 to 3 nm. 
.mon...ne winds 15 to 20 kt with gusts up to 30 kt. seas 7 to
9 ft. wave detail: e 8 ft at 9 seconds and se 2 ft at 8 seconds.
showers in the morning, then rain likely in the afternoon. 
.mon night...e winds 10 to 15 kt with gusts up to 20 kt,
diminishing to 5 to 10 kt after midnight. seas 5 to 8 ft. rain
likely in the evening, then a chance of showers after midnight. 
.tue...n winds 5 to 10 kt. seas 4 to 6 ft. a chance of showers. 
.tue night through wed night...sw winds around 5 kt. seas 2 to
4 ft.  

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.

$$