fzus51 kbox 212004
cwfbox
expires:202607220900;;367093

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
404 pm edt tue jul 21 2026

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


anz230-220900-
boston harbor-
404 pm edt tue jul 21 2026

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

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 212004
cwfbox
expires:202607220900;;367084

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
404 pm edt tue jul 21 2026

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


anz231-220900-
cape cod bay-
404 pm edt tue jul 21 2026

...small craft advisory in effect from 8 pm edt this evening
through wednesday evening...

.tonight...s winds 15 to 20 kt with gusts up to 30 kt. seas 3 to
4 ft. wave detail: s 3 ft at 5 seconds and e 1 foot at
12 seconds. showers with a chance of tstms. patchy fog after
midnight. 
.wed...sw winds 15 to 20 kt with gusts up to 30 kt. seas 3 to
4 ft. wave detail: sw 3 ft at 4 seconds and se 1 foot at
7 seconds. a chance of showers. patchy fog in the morning with
vsby 1 to 3 nm. 
.wed night...sw winds 10 to 15 kt with gusts up to 25 kt,
becoming w 5 to 10 kt after midnight. seas 2 to 4 ft. wave
detail: s 3 ft at 4 seconds and se 3 ft at 10 seconds. a chance
of showers in the evening. 
.thu...nw winds 5 to 10 kt, becoming ne in the afternoon. seas
around 2 ft. wave detail: se 2 ft at 5 seconds and nw 1 foot at
2 seconds. a chance of showers in the morning. 
.thu night...se winds around 5 kt, becoming w after midnight.
seas around 2 ft in the evening, then 1 foot or less. wave
detail: se 2 ft at 7 seconds and w 1 foot at 3 seconds, becoming
sw 1 foot at 2 seconds and s 1 foot at 8 seconds. 
.fri and fri night...e winds around 5 kt. seas 1 foot or less.
wave detail: w 1 foot at 2 seconds and se 1 foot at 7 seconds. 
.sat through sun night...s winds 5 to 10 kt. seas 1 foot or less.
 

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.

$$

fzus51 kbox 212004
cwfbox
expires:202607220900;;367082

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
404 pm edt tue jul 21 2026

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


anz250-220900-
coastal waters east of ipswich bay and the stellwagen bank
national marine sanctuary-
404 pm edt tue jul 21 2026

...small craft advisory in effect from 8 pm edt this evening
through wednesday evening...

.tonight...s winds 15 to 20 kt with gusts up to 30 kt. seas 3 to
5 ft. wave detail: s 4 ft at 6 seconds and e 1 foot at
11 seconds. showers with a chance of tstms this evening, then a
chance of showers with a slight chance of tstms after midnight.
patchy fog after midnight. 
.wed...s winds 15 to 20 kt with gusts up to 30 kt. seas 3 to
5 ft. wave detail: s 5 ft at 8 seconds and se 5 ft at 8 seconds.
patchy fog in the morning. a chance of showers in the morning
with vsby 1 nm or less. 
.wed night...sw winds 10 to 15 kt with gusts up to 25 kt,
becoming w after midnight. seas 3 to 5 ft. wave detail: s 5 ft at
8 seconds and se 4 ft at 10 seconds. 
.thu...nw winds 5 to 10 kt, becoming se in the afternoon. seas
2 to 4 ft. wave detail: se 3 ft at 8 seconds and e 2 ft at
10 seconds. 
.thu night...s winds around 5 kt, becoming sw after midnight.
seas 2 to 3 ft. wave detail: se 3 ft at 8 seconds and nw 1 foot
at 3 seconds. 
.fri and fri night...s winds around 5 kt. seas 2 to 3 ft. wave
detail: se 2 ft at 7 seconds and s 1 foot at 2 seconds. 
.sat through sun night...s winds 5 to 10 kt. seas 2 to 3 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.

$$

fzus51 kgyx 212102
cwfgyx
expires:202607221000;;369841

coastal waters forecast
national weather service gray me
501 pm edt tue jul 21 2026

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


anz154-221000-
coastal waters from cape elizabeth, me to merrimack river, ma out
25 nm-
501 pm edt tue jul 21 2026

...small craft advisory in effect through late wednesday night...

.tonight...se winds 15 to 20 kt, becoming s towards daybreak. seas
3 to 5 ft. wave detail: s 5 ft at 6 seconds. rain and scattered
tstms until early morning, then a slight chance of showers towards
daybreak. patchy fog late this evening and overnight. vsby 1 to
3 nm, decreasing to 1 nm or less after midnight. 
.wed...s winds 10 to 15 kt with gusts up to 20 kt. seas 3 to 5 ft.
wave detail: se 5 ft at 7 seconds. patchy fog in the morning with
vsby 1 to 3 nm. 
.wed night...sw winds 10 to 15 kt with gusts up to 20 kt, becoming w
5 to 10 kt after midnight. seas 3 to 5 ft. wave detail: se 5 ft at
8 seconds. a chance of showers in the evening. 
.thu...w winds 5 to 10 kt, becoming sw in the afternoon. seas 2 to
4 ft. wave detail: se 4 ft at 9 seconds. 
.thu night...s winds 5 to 10 kt, becoming w after midnight. seas
2 to 3 ft. wave detail: se 3 ft at 8 seconds. 
.fri...nw winds around 5 kt, becoming se in the afternoon. seas 2 to
3 ft. wave detail: se 3 ft at 7 seconds. 
.fri night...s winds 5 to 10 kt, becoming sw after midnight. seas
around 2 ft. 
.sat...se winds around 5 kt. seas around 2 ft. 
.sat night...se winds around 5 kt, becoming n around 5 kt after
midnight. seas around 2 ft. 
.sun...ne winds around 5 kt, becoming se around 5 kt in the
afternoon. seas around 2 ft. 
.sun night...s winds around 5 kt. seas 2 to 3 ft.  

winds and seas higher in and near tstms.

$$