fzus51 kbox 210503
cwfbox
expires:202609211800;;799149

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
103 am edt mon sep 21 2026

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


anz230-211800-
boston harbor-
103 am edt mon sep 21 2026

.rest of tonight...n winds 10 to 15 kt with gusts up to 20 kt.
waves around 2 ft. patchy fog. showers likely. vsby 1 to 3 nm. 
.mon...ne winds 10 to 15 kt with gusts up to 20 kt. waves 2 to
3 ft. 
.mon night...ne winds 5 to 10 kt, increasing to 15 to 20 kt after
midnight. waves 1 foot or less, then 2 to 3 ft after midnight. 
.tue...ne winds 15 to 20 kt with gusts up to 25 kt. waves 2 to
3 ft. 
.tue night through wed night...ne winds 15 to 20 kt with gusts up
to 30 kt. waves 2 to 3 ft. 
.thu and thu night...ne winds 20 to 25 kt, diminishing to 15 to
20 kt. gusts up to 30 kt. waves 2 to 3 ft, except 4 to 6 ft at
the outer harbor entrance. 
.fri and fri night...ne winds 25 to 30 kt with gusts up to 35 kt.
waves 2 to 3 ft, except 5 to 7 ft at the outer harbor entrance. a
chance of showers.  

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 210503
cwfbox
expires:202609211800;;799140

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
103 am edt mon sep 21 2026

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


anz231-211800-
cape cod bay-
103 am edt mon sep 21 2026

...small craft advisory in effect from 8 am edt this morning
through this evening...

.rest of tonight...ne winds 5 to 10 kt with gusts up to 20 kt.
seas around 2 ft. wave detail: se 1 foot at 3 seconds and e
1 foot at 9 seconds. patchy fog. showers. vsby 1 to 3 nm. 
.mon...ne winds 15 to 20 kt with gusts up to 25 kt. seas 2 to
4 ft. wave detail: ne 3 ft at 4 seconds and w 2 ft at 5 seconds.
patchy fog in the morning. a chance of showers in the morning
with vsby 1 to 3 nm. 
.mon night...ne winds 10 to 15 kt, increasing to 15 to 20 kt
after midnight. gusts up to 25 kt. seas 2 to 3 ft. wave detail: n
2 ft at 5 seconds and se 1 foot at 10 seconds. 
.tue...ne winds 15 to 20 kt with gusts up to 25 kt. seas 3 to
4 ft. wave detail: n 3 ft at 4 seconds and se 1 foot at
9 seconds. 
.tue night...ne winds 15 to 20 kt with gusts up to 30 kt. seas
3 to 4 ft. wave detail: n 3 ft at 4 seconds and se 1 foot at
18 seconds. 
.wed and wed night...ne winds 20 to 25 kt with gusts up to 35 kt.
seas 4 to 6 ft. wave detail: e 6 ft at 9 seconds and ne 5 ft at
5 seconds. 
.thu...ne winds 25 to 30 kt with gusts up to 40 kt. seas 4 to
6 ft. 
.thu night through fri night...ne winds 25 to 35 kt with gusts up
to 45 kt. seas 5 to 8 ft. a chance of showers.  

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 210503
cwfbox
expires:202609211800;;799138

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
103 am edt mon sep 21 2026

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


anz250-211800-
coastal waters east of ipswich bay and the stellwagen bank
national marine sanctuary-
103 am edt mon sep 21 2026

.rest of tonight...ne winds 15 to 20 kt. seas 2 to 3 ft. wave
detail: se 2 ft at 4 seconds and se 1 foot at 9 seconds. patchy
fog. showers. vsby 1 to 3 nm. 
.mon...ne winds 15 to 20 kt with gusts up to 25 kt. seas 2 to
4 ft. wave detail: n 4 ft at 6 seconds and se 2 ft at 9 seconds.
patchy fog in the morning. 
.mon night...ne winds 10 to 15 kt, increasing to 15 to 20 kt with
gusts up to 25 kt after midnight. seas 2 to 3 ft, building to
3 to 5 ft after midnight. wave detail: ne 3 ft at 5 seconds and w
3 ft at 6 seconds, becoming n 4 ft at 5 seconds and se 2 ft at
9 seconds. 
.tue...ne winds 15 to 20 kt with gusts up to 25 kt. seas 4 to
5 ft. wave detail: e 5 ft at 7 seconds and n 1 foot at 4 seconds.
.tue night...ne winds 15 to 20 kt with gusts up to 30 kt. seas
4 to 6 ft. wave detail: e 6 ft at 7 seconds and n 1 foot at
4 seconds. 
.wed...ne winds 20 to 25 kt with gusts up to 30 kt. seas 5 to
8 ft. wave detail: e 8 ft at 8 seconds. 
.wed night...ne winds 15 to 20 kt, increasing to 20 to 25 kt
after midnight. gusts up to 30 kt. seas 7 to 10 ft. 
.thu and thu night...ne winds 20 to 25 kt with gusts up to 35 kt.
seas 9 to 12 ft. 
.fri and fri night...ne winds 25 to 30 kt with gusts up to 40 kt.
seas 9 to 12 ft. a chance of showers.  

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 kgyx 202102
cwfgyx
expires:202609211000;;783327

coastal waters forecast
national weather service gray me
502 pm edt sun sep 20 2026

coastal waters from stonington me to merrimack river ma out to 60 nm


anz154-211000-
coastal waters from cape elizabeth, me to merrimack river, ma out
25 nm-
502 pm edt sun sep 20 2026

.tonight...e winds 5 to 10 kt, becoming ne after midnight, then
increasing to 10 to 15 kt with gusts up to 20 kt towards daybreak.
seas 2 to 3 ft. wave detail: se 2 ft at 4 seconds. rain early this
evening, then showers late this evening. a chance of showers after
midnight. patchy fog late this evening. vsby 1 to 3 nm until early
morning. 
.mon...n winds 10 to 15 kt, becoming ne 5 to 10 kt in the afternoon.
seas 2 to 3 ft. wave detail: ne 2 ft at 4 seconds and s 2 ft at
5 seconds. 
.mon night...ne winds 5 to 10 kt, increasing to 10 to 15 kt after
midnight. gusts up to 25 kt. seas 2 to 3 ft. wave detail: ne 3 ft at
5 seconds. 
.tue...ne winds 10 to 15 kt with gusts up to 25 kt. seas 3 to 4 ft.
wave detail: e 4 ft at 5 seconds. 
.tue night...ne winds 5 to 10 kt, increasing to 10 to 15 kt after
midnight. gusts up to 25 kt. seas 3 to 4 ft. wave detail: e 3 ft at
7 seconds. 
.wed...ne winds 15 to 20 kt with gusts up to 30 kt. seas 4 to 6 ft.
wave detail: e 6 ft at 7 seconds. 
.wed night...ne winds 10 to 15 kt with gusts up to 25 kt. seas 5 to
7 ft. 
.thu...ne winds 15 to 20 kt with gusts up to 30 kt. seas 6 to 9 ft. 
.thu night...ne winds 5 to 10 kt, increasing to 15 to 20 kt after
midnight. seas 8 to 10 ft. 
.fri...ne winds 15 to 20 kt with gusts up to 30 kt. seas 8 to 11 ft.
a chance of showers in the afternoon. 
.fri night...ne winds 15 to 20 kt with gusts up to 30 kt, increasing
to 20 to 25 kt with gusts up to 40 kt after midnight. seas 9 to
11 ft. a chance of showers.  

$$