fzus51 kbox 180504
cwfbox
expires:202606181800;;936345

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
104 am edt thu jun 18 2026

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


anz230-181800-
boston harbor-
104 am edt thu jun 18 2026

...gale watch in effect from 11 am edt this morning through this
evening...

.rest of tonight...s winds 5 to 10 kt. waves 1 foot or less. 
.thu...s winds 10 to 15 kt with gusts up to 25 kt, increasing to
15 to 20 kt with gusts up to 35 kt in the afternoon. waves around
2 ft. a chance of showers in the morning, then showers likely in
the afternoon. 
.thu night...sw winds 10 to 15 kt. gusts up to 30 kt, decreasing
to 20 kt after midnight. waves around 2 ft. a chance of showers
in the evening. 
.fri...w winds 10 to 15 kt, increasing to 15 to 20 kt in the
afternoon. gusts up to 25 kt. waves around 2 ft. 
.fri night through sat night...w winds 15 to 20 kt with gusts up
to 25 kt. waves around 2 ft. 
.sun...w winds 5 to 10 kt. waves 1 foot or less. 
.sun night...sw winds around 5 kt. waves 1 foot or less. a chance
of showers. 
.mon and mon night...e winds 5 to 10 kt, becoming n 10 to 15 kt.
waves around 2 ft. showers likely.  

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 180504
cwfbox
expires:202606181800;;936334

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
104 am edt thu jun 18 2026

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


anz250-181800-
coastal waters east of ipswich bay and the stellwagen bank
national marine sanctuary-
104 am edt thu jun 18 2026

...gale watch in effect from 11 am edt this morning through this
evening...

.rest of tonight...s winds 10 to 15 kt. seas around 2 ft. wave
detail: s 2 ft at 4 seconds and e 1 foot at 7 seconds. 
.thu...s winds 15 to 20 kt with gusts up to 25 kt, increasing to
20 to 25 kt with gusts up to 35 kt in the afternoon. seas 2 to
4 ft, building to 4 to 6 ft in the afternoon. wave detail: s 4 ft
at 5 seconds and e 1 foot at 8 seconds, becoming se 6 ft at
7 seconds. patchy fog in the afternoon. a chance of showers in
the afternoon with vsby 1 to 3 nm. 
.thu night...sw winds 20 to 25 kt with gusts up to 35 kt,
diminishing to 10 to 15 kt with gusts up to 20 kt after midnight.
seas 4 to 6 ft. wave detail: se 6 ft at 7 seconds. patchy fog in
the evening. a chance of showers in the evening with vsby 1 to
3 nm. 
.fri...sw winds 10 to 15 kt with gusts up to 20 kt. seas 2 to
4 ft. wave detail: se 3 ft at 7 seconds and w 2 ft at 4 seconds. 
.fri night through sat night...w winds 15 to 20 kt with gusts up
to 25 kt. seas 2 to 4 ft. wave detail: w 3 ft at 4 seconds and se
3 ft at 8 seconds. 
.sun and sun night...sw winds 5 to 10 kt. seas 2 to 3 ft. wave
detail: w 2 ft at 4 seconds and se 1 foot at 7 seconds. 
.mon...e winds 10 to 15 kt with gusts up to 20 kt. seas around
2 ft. showers likely. 
.mon night...n winds 10 to 15 kt with gusts up to 20 kt. seas
2 to 4 ft. showers likely.  

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.

$$