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(1/2)
Latest Coastal Waters Forecast by KBOX
Issued 4/30/2026 1:04 AM America/New_York.
Valid through 4/30/2026 2:00 PM America/New_York.
fzus51 kbox 300504
cwfbox
expires:202604301800;;763322
coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
104 am edt thu apr 30 2026
coastal waters from the merrimack river ma to watch hill ri out
to 60 nm
anz230-301800-
boston harbor-
104 am edt thu apr 30 2026
.rest of tonight...se winds 5 to 10 kt. waves 1 foot or less,
except 2 to 4 ft at the outer harbor entrance. patchy fog.
showers likely. vsby 1 nm or less.
.thu...se winds 5 to 10 kt. waves 1 foot or less, except 2 to
4 ft at the outer harbor entrance. patchy fog. showers. vsby 1 nm
or less, increasing to 1 to 3 nm in the afternoon.
.thu night...nw winds 5 to 10 kt, increasing to 10 to 15 kt after
midnight. waves 1 foot or less, then around 2 ft after midnight.
.fri...w winds 10 to 15 kt. waves around 2 ft.
.fri night...w winds 5 to 10 kt. waves around 2 ft in the
evening, then 1 foot or less.
.sat and sat night...w winds 5 to 10 kt. waves 1 foot or less. a
chance of showers.
.sun...nw winds 10 to 15 kt. waves around 2 ft. a chance of
showers.
.sun night and mon...sw winds 10 to 15 kt. gusts up to 20 kt.
waves around 2 ft.
.mon night...s winds 10 to 15 kt with gusts up to 20 kt. waves
around 2 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.
$$
(2/2)
Latest Coastal Waters Forecast by KBOX
Issued 4/30/2026 1:04 AM America/New_York.
Valid through 4/30/2026 2:00 PM America/New_York.
fzus51 kbox 300504
cwfbox
expires:202604301800;;763311
coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
104 am edt thu apr 30 2026
coastal waters from the merrimack river ma to watch hill ri out
to 60 nm
anz250-301800-
coastal waters east of ipswich bay and the stellwagen bank
national marine sanctuary-
104 am edt thu apr 30 2026
...small craft advisory in effect through friday morning...
.rest of tonight...se winds 10 to 15 kt with gusts up to 20 kt.
seas 5 to 7 ft. wave detail: e 7 ft at 10 seconds and se 1 foot
at 4 seconds. patchy fog. a chance of showers with a slight
chance of tstms. vsby 1 nm or less.
.thu...se winds 10 to 15 kt with gusts up to 20 kt, diminishing
to 5 to 10 kt in the afternoon. seas 5 to 7 ft. wave detail: e
7 ft at 10 seconds and se 2 ft at 5 seconds. patchy fog. showers.
vsby 1 nm or less.
.thu night...w winds 5 to 10 kt, becoming nw 10 to 15 kt after
midnight. seas 4 to 6 ft. wave detail: e 6 ft at 10 seconds and
ne 2 ft at 6 seconds.
.fri...w winds 10 to 15 kt with gusts up to 20 kt, diminishing to
5 to 10 kt in the afternoon. seas 4 to 6 ft. wave detail: e 5 ft
at 10 seconds and w 2 ft at 3 seconds.
.fri night...w winds around 10 kt. seas 4 to 5 ft. wave detail: e
4 ft at 9 seconds and w 1 foot at 3 seconds.
.sat and sat night...w winds 5 to 10 kt. seas 3 to 5 ft. wave
detail: sw 5 ft at 3 seconds and e 4 ft at 9 seconds. a chance of
showers.
.sun...nw winds 5 to 10 kt. seas around 3 ft. a chance of
showers.
.sun night through mon night...s winds 15 to 20 kt with gusts up
to 25 kt. seas 2 to 4 ft.
winds and seas higher in and near tstms.
seas are reported as significant wave height, which is the
average of the highest third of the waves. individual wave
heights may be more than twice the significant wave height.
$$
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