fzus51 kbox 190906
cwfbox
expires:202512192200;;848815

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
406 am est fri dec 19 2025

coastal waters from the merrimack river ma to watch hill ri out
to 25 nm


anz235-192200-
rhode island sound-
406 am est fri dec 19 2025

...storm warning in effect from 8 am this morning to 3 pm est
this afternoon...

.today...s winds 25 to 35 kt, increasing to 30 to 40 kt this
afternoon. gusts up to 50 kt. seas 8 to 11 ft, building to 10 to
13 ft this afternoon. wave detail: s 11 ft at 8 seconds, becoming
s 13 ft at 9 seconds and sw 2 ft at 4 seconds. rain. isolated
tstms this afternoon. patchy fog this morning. vsby 1 nm or less,
increasing to 1 to 3 nm this afternoon. 
.tonight...w winds 30 to 35 kt, becoming 25 to 35 kt after
midnight. gusts up to 45 kt. seas 10 to 12 ft, subsiding to 8 to
11 ft after midnight. wave detail: s 12 ft at 11 seconds and w
5 ft at 7 seconds, becoming s 11 ft at 11 seconds and w 6 ft at
7 seconds. 
.sat...w winds 20 to 25 kt with gusts up to 35 kt, diminishing to
10 to 15 kt with gusts up to 20 kt in the afternoon. seas 6 to
9 ft, subsiding to 4 to 6 ft in the afternoon. wave detail: s
9 ft at 11 seconds and w 4 ft at 7 seconds, becoming s 6 ft at
11 seconds and w 2 ft at 5 seconds. 
.sat night...sw winds 20 to 25 kt, increasing to 25 to 30 kt with
gusts up to 35 kt after midnight. seas 4 to 6 ft. wave detail: sw
6 ft at 7 seconds and s 5 ft at 10 seconds. 
.sun and sun night...nw winds 25 to 30 kt. seas 5 to 7 ft. wave
detail: sw 7 ft at 8 seconds and w 4 ft at 5 seconds. 
.mon and mon night...nw winds 20 to 25 kt with gusts up to 30 kt,
becoming w 10 to 15 kt. seas 2 to 4 ft. wave detail: w 4 ft at
6 seconds and n 1 foot at 5 seconds. 
.tue...sw winds 20 to 25 kt with gusts up to 30 kt. seas 2 to
4 ft. rain likely with a chance of snow. 
.tue night...w winds 20 to 25 kt. seas 4 to 5 ft. a chance of
rain.  

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 190906
cwfbox
expires:202512192200;;848818

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
406 am est fri dec 19 2025

coastal waters from the merrimack river ma to watch hill ri out
to 25 nm


anz236-192200-
narragansett bay-
406 am est fri dec 19 2025

...storm warning in effect from 8 am this morning to 3 pm est
this afternoon...

.today...s winds 25 to 35 kt with gusts up to 55 kt. waves 5 to
7 ft, except 8 to 11 ft at the bay entrance. rain. isolated tstms
this afternoon. vsby 1 nm or less, increasing to 1 to 3 nm this
afternoon. 
.tonight...w winds 25 to 30 kt, diminishing to 20 to 25 kt after
midnight. gusts up to 40 kt. waves 4 to 6 ft. a chance of showers
in the evening. 
.sat...w winds 15 to 20 kt with gusts up to 30 kt, diminishing to
around 10 kt in the afternoon. waves 2 to 4 ft. at the bay
entrance, waves 5 to 7 ft, subsiding to 3 to 5 ft in the
afternoon. 
.sat night...sw winds 15 to 20 kt, increasing to 20 to 25 kt
after midnight. gusts up to 30 kt. waves 2 to 4 ft, building to
4 to 6 ft after midnight. 
.sun...w winds 15 to 20 kt with gusts up to 30 kt. waves 4 to
6 ft. 
.sun night...nw winds 15 to 20 kt with gusts up to 25 kt. waves
2 to 3 ft. 
.mon and mon night...nw winds 15 to 20 kt with gusts up to 25 kt,
becoming w 5 to 10 kt. waves 2 to 3 ft. 
.tue...sw winds 15 to 20 kt with gusts up to 25 kt. waves 2 to
4 ft. rain likely with a chance of snow. vsby 1 to 3 nm. 
.tue night...w winds 15 to 20 kt with gusts up to 25 kt. waves
2 to 4 ft. a chance of rain.  

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 190906
cwfbox
expires:202512192200;;848816

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
406 am est fri dec 19 2025

coastal waters from the merrimack river ma to watch hill ri out
to 25 nm


anz237-192200-
block island sound-
406 am est fri dec 19 2025

...gale warning in effect through saturday morning...

.today...s winds 25 to 30 kt, becoming sw 25 to 35 kt this
afternoon. gusts up to 50 kt. seas 7 to 10 ft, building to 9 to
12 ft this afternoon. wave detail: se 10 ft at 6 seconds and se
1 foot at 10 seconds, becoming s 12 ft at 9 seconds and w 4 ft at
5 seconds. rain. isolated tstms this afternoon. vsby 1 nm or
less. 
.tonight...w winds 30 to 35 kt, diminishing to 25 to 30 kt after
midnight. gusts up to 45 kt. seas 8 to 11 ft. wave detail: s
11 ft at 11 seconds and w 7 ft at 7 seconds. 
.sat...w winds 20 to 25 kt with gusts up to 30 kt, diminishing to
10 to 15 kt with gusts up to 20 kt in the afternoon. seas 5 to
8 ft, subsiding to 3 to 5 ft in the afternoon. wave detail: s
8 ft at 11 seconds and w 5 ft at 6 seconds, becoming s 5 ft at
11 seconds and w 3 ft at 4 seconds. 
.sat night...sw winds 15 to 20 kt, increasing to 20 to 25 kt
after midnight. gusts up to 30 kt. seas 4 to 6 ft. wave detail: s
6 ft at 7 seconds and s 4 ft at 10 seconds. 
.sun and sun night...nw winds 20 to 25 kt with gusts up to 30 kt.
seas 5 to 7 ft. wave detail: s 6 ft at 8 seconds and w 4 ft at
5 seconds. 
.mon...nw winds 15 to 20 kt with gusts up to 30 kt. seas 2 to
4 ft. wave detail: w 4 ft at 6 seconds and se 2 ft at 11 seconds.
.mon night...w winds 10 to 15 kt. seas around 2 ft. 
.tue...sw winds 15 to 20 kt with gusts up to 30 kt. seas 2 to
4 ft. rain likely with a chance of snow. 
.tue night...w winds around 20 kt with gusts up to 25 kt. seas
3 to 4 ft. a chance of rain.  

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 190906
cwfbox
expires:202512192200;;848810

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
406 am est fri dec 19 2025

coastal waters from the merrimack river ma to watch hill ri out
to 25 nm


anz255-192200-
coastal waters extending out to 25 nm south of marthas vineyard
and nantucket-
406 am est fri dec 19 2025

...storm warning in effect from 8 am this morning to 4 pm est
this afternoon...

.today...s winds 30 to 40 kt with gusts up to 50 kt. seas 8 to
11 ft, building to 11 to 15 ft this afternoon. wave detail: s
11 ft at 7 seconds and se 1 foot at 11 seconds, becoming s 15 ft
at 9 seconds and sw 1 foot at 4 seconds. a chance of rain this
morning, then rain with isolated tstms this afternoon. patchy fog
this morning. vsby 1 nm or less. 
.tonight...w winds 30 to 40 kt with gusts up to 45 kt. seas 12 to
16 ft. wave detail: sw 16 ft at 11 seconds and w 12 ft at
9 seconds. 
.sat...w winds 25 to 30 kt with gusts up to 40 kt, diminishing to
15 to 20 kt in the afternoon. seas 9 to 12 ft, subsiding to 5 to
7 ft in the afternoon. wave detail: sw 12 ft at 11 seconds and w
9 ft at 9 seconds, becoming sw 7 ft at 10 seconds and w 5 ft at
9 seconds. 
.sat night...sw winds 20 to 25 kt, increasing to 25 to 30 kt with
gusts up to 35 kt after midnight. seas 5 to 7 ft. wave detail: sw
7 ft at 7 seconds and s 6 ft at 10 seconds. 
.sun...w winds 25 to 30 kt with gusts up to 35 kt. seas 6 to
8 ft, building to 7 to 10 ft in the afternoon. wave detail: sw
8 ft at 8 seconds and w 2 ft at 4 seconds, becoming sw 9 ft at
8 seconds and w 2 ft at 5 seconds. 
.sun night...nw winds 25 to 30 kt with gusts up to 35 kt. seas
7 to 10 ft, subsiding to 5 to 7 ft after midnight. wave detail: w
10 ft at 8 seconds and nw 4 ft at 5 seconds, becoming w 7 ft at
7 seconds and se 2 ft at 11 seconds. 
.mon...nw winds 25 to 30 kt with gusts up to 35 kt. seas 4 to
6 ft. 
.mon night...nw winds 15 to 20 kt. seas 3 to 5 ft.
.tue...sw winds 20 to 25 kt with gusts up to 30 kt. seas 3 to
5 ft. rain likely. 
.tue night...w winds 25 to 30 kt. seas 4 to 6 ft. a chance of
rain.  

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.

$$