532 

FZUS51 KBOX 151702
CWFBOX

Coastal Waters Forecast for Massachusetts and Rhode Island
National Weather Service Boston/Norton MA
102 PM EDT Wed Apr 15 2026

Coastal waters from the Merrimack River MA to Watch Hill RI out
to 25 NM

ANZ200-160600-
102 PM EDT Wed Apr 15 2026

.Synopsis for Massachusetts and Rhode Island coastal waters...
A backdoor cold front remains over northern New England
today, which may flirt with MA waters north of Cape Cod today and/or
Thu. A cold front likely crosses waters sometime Fri/Fri night
followed by a stronger cold front sometime Sun/Sun night. Early next
week, high pres builds from the Great Lakes to the Mid Atlantic.

$$

ANZ250-160600-
Coastal waters east of Ipswich Bay and the Stellwagen Bank
National Marine Sanctuary-
102 PM EDT Wed Apr 15 2026

.THIS AFTERNOON...E winds 5 to 10 kt. Seas around 2 ft. Patchy
fog. A slight chance of showers. Vsby 1 NM or less.
.TONIGHT...SE winds around 10 kt, becoming NE after midnight.
Seas around 2 ft. Patchy fog. A chance of showers. Vsby 1 NM or
less.
.THU...E winds 5 to 10 kt. Seas around 2 ft. A chance of showers.
Patchy fog in the morning with vsby 1 to 3 NM.
.THU NIGHT...SE winds around 10 kt, becoming SW after midnight.
Seas around 2 ft. A chance of showers. Patchy fog in the evening.
.FRI AND FRI NIGHT...NE winds 5 to 10 kt. Seas around 2 ft. A
chance of showers.
.SAT AND SAT NIGHT...NE winds 5 to 10 kt, becoming SE. Seas 2 to
3 ft.
.SUN...S winds 15 to 20 kt. Seas 2 to 3 ft. A chance of showers.
.SUN NIGHT...W winds 20 to 25 kt. Seas 3 to 5 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.

$$

ANZ251-160600-
Massachusetts Bay and Ipswich Bay-
102 PM EDT Wed Apr 15 2026

.THIS AFTERNOON...E winds 5 to 10 kt. Seas around 2 ft. Patchy
fog. A slight chance of showers. Vsby 1 NM or less.
.TONIGHT...E winds 5 to 10 kt, becoming NE after midnight. Seas
around 2 ft in the evening, then 1 foot or less. Patchy fog. A
chance of showers. Vsby 1 NM or less.
.THU...NE winds 5 to 10 kt. Seas 1 foot or less, then around 2 ft
in the afternoon. A chance of showers. Patchy fog in the morning
with vsby 1 to 3 NM.
.THU NIGHT...SE winds 5 to 10 kt, becoming SW after midnight.
Seas around 2 ft. A chance of showers. Patchy fog in the evening.
.FRI...W winds 5 to 10 kt, becoming N in the afternoon. Seas
around 2 ft. A chance of showers in the morning, then showers
likely in the afternoon.
.FRI NIGHT...NE winds around 10 kt. Seas around 2 ft. A chance of
showers in the evening.
.SAT AND SAT NIGHT...NE winds 5 to 10 kt, becoming SE. Seas
around 2 ft.
.SUN AND SUN NIGHT...S winds 10 to 15 kt, becoming W 15 to 20 kt.
Gusts up to 25 kt. Seas 2 to 3 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.

$$

ANZ231-160600-
Cape Cod Bay-
102 PM EDT Wed Apr 15 2026

.THIS AFTERNOON...E winds 5 to 10 kt. Seas 1 foot or less. Patchy
fog. Vsby 1 NM or less.
.TONIGHT...S winds 5 to 10 kt, becoming W after midnight. Seas
1 foot or less. Patchy fog. A chance of showers and tstms. Vsby
1 NM or less.
.THU...W winds 5 to 10 kt, becoming SW in the afternoon. Seas
1 foot or less. Patchy fog in the morning. A chance of showers in
the morning with vsby 1 to 3 NM.
.THU NIGHT...SW winds 5 to 10 kt. Seas 1 foot or less. A chance
of showers.
.FRI...SW winds around 5 kt, becoming NW in the afternoon. Seas
1 foot or less. A chance of showers.
.FRI NIGHT...NE winds 5 to 10 kt. Seas 1 foot or less. A chance
of showers in the evening.
.SAT AND SAT NIGHT...NE winds 5 to 10 kt, becoming SE. Seas
1 foot or less.
.SUN AND SUN NIGHT...S winds 10 to 15 kt, becoming W 15 to 20 kt.
Gusts up to 25 kt. Seas 2 to 3 ft. A chance of showers.

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.

$$

ANZ254-160600-
Coastal waters from Provincetown MA to Chatham MA to Nantucket MA
out 20 nm-
102 PM EDT Wed Apr 15 2026

.THIS AFTERNOON...SE winds 5 to 10 kt. Seas 2 to 3 ft. Patchy
fog. Vsby 1 NM or less.
.TONIGHT...S winds 5 to 10 kt, becoming SW after midnight. Seas
2 to 3 ft. Patchy fog. A chance of showers. A chance of tstms in
the evening. Vsby 1 NM or less.
.THU...SW winds 5 to 10 kt, increasing to 10 to 15 kt in the
afternoon. Seas 2 to 3 ft. Patchy fog in the morning with vsby
1 to 3 NM.
.THU NIGHT...SW winds 10 to 15 kt. Seas 2 to 4 ft.
.FRI...W winds 5 to 10 kt. Seas 2 to 4 ft. A chance of showers in
the afternoon.
.FRI NIGHT...N winds 5 to 10 kt. Seas 2 to 3 ft. A chance of
showers in the evening.
.SAT AND SAT NIGHT...NE winds 5 to 10 kt, becoming SE. Seas 2 to
3 ft.
.SUN...S winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to
4 ft. A chance of showers.
.SUN NIGHT...W winds 20 to 25 kt. Seas 4 to 6 ft. A chance of
showers.

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.

$$

ANZ255-160600-
Coastal Waters extending out to 25 nm South of Marthas Vineyard
and Nantucket-
102 PM EDT Wed Apr 15 2026

.THIS AFTERNOON...S winds 5 to 10 kt. Seas 3 to 4 ft. Patchy fog.
Vsby 1 NM or less.
.TONIGHT...SW winds around 10 kt. Seas 3 to 4 ft. Patchy fog. A
chance of showers. A chance of tstms in the evening. Vsby 1 NM or
less.
.THU...SW winds 10 to 15 kt. Seas 3 to 4 ft. Patchy fog in the
morning with vsby 1 to 3 NM.
.THU NIGHT...SW winds 10 to 15 kt. Seas 3 to 5 ft.
.FRI...SW winds 10 to 15 kt. Seas 3 to 4 ft.
.FRI NIGHT...NW winds around 10 kt, becoming NE after midnight.
Seas 3 to 4 ft.
.SAT AND SAT NIGHT...NE winds 5 to 10 kt, becoming SE 10 to
15 kt. Seas 2 to 3 ft.
.SUN...S winds 15 to 20 kt. Seas 3 to 5 ft. A chance of showers.
.SUN NIGHT...W winds 20 to 25 kt with gusts up to 30 kt. Seas
5 to 7 ft. A chance of showers.

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.

$$

ANZ256-160600-
Coastal Waters from Montauk NY to Marthas Vineyard extending out
to 20 nm South of Block Island-
102 PM EDT Wed Apr 15 2026

.THIS AFTERNOON...S winds around 10 kt. Seas 3 to 4 ft. Patchy
fog. Vsby 1 NM or less.
.TONIGHT...SW winds 10 to 15 kt. Seas 3 to 4 ft. Patchy fog. A
chance of showers and tstms. Vsby 1 NM or less.
.THU...SW winds 10 to 15 kt. Gusts up to 20 kt in the afternoon.
Seas 3 to 4 ft. Patchy fog in the morning with vsby 1 to 3 NM.
.THU NIGHT...SW winds 10 to 15 kt. Gusts up to 20 kt in the
evening. Seas 4 to 5 ft.
.FRI...SW winds around 10 kt. Seas 3 to 4 ft. A chance of showers
in the afternoon.
.FRI NIGHT...NE winds around 10 kt. Seas 3 to 4 ft. A chance of
showers in the evening.
.SAT AND SAT NIGHT...NE winds 5 to 10 kt, becoming SE 10 to
15 kt. Seas 2 to 3 ft.
.SUN...S winds 15 to 20 kt. Seas 2 to 4 ft. A chance of showers.
.SUN NIGHT...W winds 20 to 25 kt with gusts up to 30 kt. Seas
4 to 6 ft. A chance of showers.

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.

$$

ANZ232-160600-
Nantucket Sound-
102 PM EDT Wed Apr 15 2026

.THIS AFTERNOON...S winds 5 to 10 kt. Seas around 2 ft. Patchy
fog. Vsby 1 NM or less.
.TONIGHT...S winds 5 to 10 kt, becoming SW after midnight. Seas
around 2 ft. Patchy fog. A chance of showers. A chance of tstms
in the evening. Vsby 1 NM or less.
.THU...SW winds 5 to 10 kt, increasing to 10 to 15 kt in the
afternoon. Seas around 2 ft. Patchy fog in the morning with vsby
1 to 3 NM.
.THU NIGHT...SW winds 10 to 15 kt. Seas 2 to 3 ft.
.FRI...SW winds 5 to 10 kt. Seas around 2 ft. A chance of showers
in the afternoon.
.FRI NIGHT...N winds 5 to 10 kt. Seas around 2 ft. A chance of
showers in the evening.
.SAT AND SAT NIGHT...NE winds 5 to 10 kt, becoming SE. Seas
around 2 ft.
.SUN AND SUN NIGHT...S winds 10 to 15 kt, becoming W 20 to 25 kt.
Seas 2 to 4 ft. A chance of showers.

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.

$$

ANZ233-160600-
Vineyard Sound-
102 PM EDT Wed Apr 15 2026

.THIS AFTERNOON...S winds 5 to 10 kt. Seas 2 to 3 ft. Patchy fog.
Vsby 1 to 3 NM.
.TONIGHT...SW winds 5 to 10 kt. Seas 2 to 3 ft. Patchy fog. A
chance of showers and tstms. Vsby 1 NM or less.
.THU...S winds 5 to 10 kt, becoming SW 10 to 15 kt in the
afternoon. Seas 2 to 3 ft. Patchy fog in the morning with vsby
1 to 3 NM.
.THU NIGHT...SW winds 10 to 15 kt. Seas 2 to 3 ft.
.FRI...SW winds 5 to 10 kt. Seas 2 to 3 ft. A chance of showers
in the afternoon.
.FRI NIGHT...N winds 5 to 10 kt. Seas 2 to 3 ft. A chance of
showers in the evening.
.SAT AND SAT NIGHT...NE winds 5 to 10 kt, becoming SE. Seas
around 2 ft.
.SUN AND SUN NIGHT...S winds 10 to 15 kt, becoming W 20 to 25 kt.
Seas 2 to 4 ft. A chance of showers.

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.

$$

ANZ234-160600-
Buzzards Bay-
102 PM EDT Wed Apr 15 2026

.THIS AFTERNOON...S winds 5 to 10 kt. Seas around 2 ft. Patchy
fog. Vsby 1 to 3 NM.
.TONIGHT...SW winds 5 to 10 kt. Seas around 2 ft. Patchy fog. A
chance of showers and tstms. Vsby 1 NM or less.
.THU...S winds 5 to 10 kt, increasing to 10 to 15 kt in the
afternoon. Seas around 2 ft. Patchy fog in the morning with vsby
1 to 3 NM.
.THU NIGHT...SW winds 10 to 15 kt, diminishing to 5 to 10 kt
after midnight. Seas around 2 ft.
.FRI...SW winds 5 to 10 kt. Seas around 2 ft. A chance of
showers.
.FRI NIGHT...N winds 5 to 10 kt. Seas around 2 ft. A chance of
showers in the evening.
.SAT AND SAT NIGHT...NE winds 5 to 10 kt, becoming SE. Seas
around 2 ft.
.SUN AND SUN NIGHT...S winds 10 to 15 kt, becoming W 15 to 20 kt.
Gusts up to 25 kt. Seas 2 to 3 ft. A chance of showers.

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.

$$

ANZ235-160600-
Rhode Island Sound-
102 PM EDT Wed Apr 15 2026

.THIS AFTERNOON...S winds around 10 kt. Seas 2 to 3 ft. Patchy
fog. Vsby 1 NM or less.
.TONIGHT...SW winds around 10 kt. Seas 2 to 3 ft. Patchy fog. A
chance of showers and tstms. Vsby 1 NM or less.
.THU...SW winds 10 to 15 kt. Seas around 3 ft. Patchy fog in the
morning with vsby 1 to 3 NM.
.THU NIGHT...SW winds 10 to 15 kt. Seas 3 to 4 ft.
.FRI...SW winds 5 to 10 kt. Seas 2 to 3 ft. A chance of showers
in the afternoon.
.FRI NIGHT...NE winds around 10 kt. Seas 2 to 3 ft. A chance of
showers in the evening.
.SAT AND SAT NIGHT...NE winds around 10 kt, becoming SE. Seas
2 to 3 ft.
.SUN...S winds 15 to 20 kt. Seas 2 to 3 ft. A chance of showers.
.SUN NIGHT...W winds 20 to 25 kt. Seas 3 to 5 ft. A chance of
showers.

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.

$$

ANZ237-160600-
Block Island Sound-
102 PM EDT Wed Apr 15 2026

.THIS AFTERNOON...S winds around 10 kt. Seas 2 to 3 ft. Patchy
fog. Vsby 1 NM or less.
.TONIGHT...SW winds 5 to 10 kt. Seas 2 to 3 ft. Patchy fog. A
chance of showers and tstms. Vsby 1 NM or less.
.THU...SW winds 5 to 10 kt, becoming S 10 to 15 kt in the
afternoon. Seas 2 to 3 ft. Patchy fog in the morning.
.THU NIGHT...SW winds 10 to 15 kt, diminishing to 5 to 10 kt
after midnight. Seas 2 to 3 ft.
.FRI...SW winds 5 to 10 kt. Seas 2 to 3 ft. A chance of showers
in the afternoon.
.FRI NIGHT...NE winds 5 to 10 kt. Seas 2 to 3 ft. A chance of
showers in the evening.
.SAT AND SAT NIGHT...NE winds 5 to 10 kt, becoming SE. Seas 2 to
3 ft.
.SUN AND SUN NIGHT...S winds 10 to 15 kt, becoming W 15 to 20 kt.
Gusts up to 25 kt. Seas 2 to 4 ft. A chance of showers.

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.

$$

ANZ230-160600-
Boston Harbor-
102 PM EDT Wed Apr 15 2026

.THIS AFTERNOON...E winds 5 to 10 kt. Waves 1 foot or less. A
chance of showers.
.TONIGHT...E winds 5 to 10 kt. Waves 1 foot or less. Patchy fog.
A chance of showers. Vsby 1 NM or less.
.THU...E winds 5 to 10 kt. Waves 1 foot or less. A chance of
showers. Patchy fog in the morning with vsby 1 to 3 NM.
.THU NIGHT...SE winds 5 to 10 kt, becoming SW after midnight.
Waves 1 foot or less. A chance of showers.
.FRI...W winds 5 to 10 kt, becoming N in the afternoon. Waves
1 foot or less. A chance of showers in the morning, then showers
likely with a chance of tstms in the afternoon.
.FRI NIGHT...NE winds 5 to 10 kt. Waves 1 foot or less. A chance
of showers in the evening.
.SAT AND SAT NIGHT...NE winds 5 to 10 kt, becoming SE. Waves
1 foot or less.
.SUN AND SUN NIGHT...S winds 10 to 15 kt, becoming W 15 to 20 kt.
Waves around 2 ft. A chance of showers.

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.

$$

ANZ236-160600-
Narragansett Bay-
102 PM EDT Wed Apr 15 2026

.THIS AFTERNOON...S winds 5 to 10 kt. Waves around 2 ft. A slight
chance of showers.
.TONIGHT...S winds 5 to 10 kt. Waves around 2 ft. Patchy fog. A
chance of showers and tstms. Vsby 1 NM or less.
.THU...S winds 5 to 10 kt, increasing to 10 to 15 kt in the
afternoon. Waves around 2 ft. Patchy fog in the morning with vsby
1 to 3 NM.
.THU NIGHT...SW winds 5 to 10 kt. Waves around 2 ft.
.FRI...SW winds 5 to 10 kt. Waves around 2 ft. A chance of
showers in the afternoon.
.FRI NIGHT...NE winds 5 to 10 kt. Waves around 2 ft. A chance of
showers in the evening.
.SAT AND SAT NIGHT...NE winds 5 to 10 kt, becoming SE. Waves
around 2 ft.
.SUN AND SUN NIGHT...S winds 10 to 15 kt, becoming W. Gusts up to
20 kt. Waves 2 to 3 ft. A chance of showers.

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.

$$

For the latest updates...please visit our webpage at
www.weather.gov/boston

You can follow us on Facebook at
www.facebook.com/us.nationalweatherservice.boston.gov

You can follow us on Twitter at
@NWSBoston







999 

FZZS50 NSTU 151723
CWFPPG

Coastal Waters Forecast
National Weather Service Pago Pago  AS
623 AM SST Wed Apr 15 2026

American Samoa coastal waters out to 40 nautical miles including
National Marine Sanctuary of American Samoa

PSZ100-160630-
623 AM SST Wed Apr 15 2026

.Synopsis for American Samoa coastal waters...Seas and winds are
forecast to remain below advisory levels through the weekend.

$$

PSZ152-154>159-160630-
Swains Island-Pago Pago Harbor-
Northern Coastal waters of Tutuila and Aunuu-
Southern Coastal waters of Tutuila and Aunuu-
Northern Coastal waters of Manua-Southern Coastal waters of Manua-
Coastal waters of Rose Atoll-
623 AM SST Wed Apr 15 2026

...There are no warnings...

.TODAY...East wind around 5 knots. Seas 4 to 6 feet. Scattered
showers.
.TONIGHT THROUGH FRIDAY...Variable wind up to 10 knots. Seas 4 to
6 feet. Scattered showers.
.FRIDAY NIGHT THROUGH SUNDAY...East wind 5 to 15 knots. Seas 4 to
6 feet. Scattered showers.

$$

The next scheduled forecast will be issued at 300 PM SST.
For the other forecasts and model data go to our web page
http://www.weather.gov/ppg

&&

.VAAIGA LAUTELE O LE TAU MO GATAIFALE O AMERIKA SAMOA...E tumau
sami ma savili i lalo ifo o fautuaga e oo atu i le faaiuga o le
vaiaso.

...E leai ni lapata'iga...

.LE ASO...Savili mai sasa'e 5 note. Sami e 4 i le 6 futu. E
ta'ape solo timu.
.PO NANEI E OO I LE ASO FARAILE...Savili e agi le lautasi e oo
atu i le 10 note. Sami e 4 i le 6 futu. E ta'ape solo timu.
.PO ASO FARAILE E OO I LE ASO SA...Savili mai sasa'e t i le 15
note. Sami e 4 i le 6 futu. E ta'ape solo timu.

$$






416 

FZUS52 KTBW 151742
CWFTBW

Coastal Waters Forecast for Florida
National Weather Service Tampa Bay Ruskin FL
142 PM EDT Wed Apr 15 2026

Gulf coastal waters from Bonita Beach to the mouth of the
Suwannee River out to 60 NM.

Important notice to mariners...marine forecasts are issued at
least four times a day. Boaters on extended trips should
routinely monitor subsequent forecast issuances and updates for
the latest marine weather information.

The wave heights are forecast as significant wave height which is
the average of the highest one-third of the waves. The highest
waves may rarely be twice the significant wave height. The winds
and seas near thunderstorms may be higher than forecast.

GMZ800-160615-
Synopsis for the coastal waters from Bonita Beach to Suwannee River-
142 PM EDT Wed Apr 15 2026

.SYNOPSIS...
Strong ridging over the area will keep our winds out of an
easterly direction through Saturday. Winds will be little higher
today and tomorrow around 10 to 15 knots. These winds will calm down
for Thursday through Saturday and sit around 5 to 10 knots. A front
will start to approach on Sunday that will start to shifts winds to
the north.

$$

GMZ830-160615-
Tampa Bay waters-
142 PM EDT Wed Apr 15 2026

.THIS AFTERNOON...East winds around 5 knots, becoming west late.
Bay and inland waters light chop.
.TONIGHT...Northwest winds 5 to 10 knots, becoming east after
midnight. Bay and inland waters light chop.
.THURSDAY...Southeast winds 5 to 10 knots, becoming west in the
afternoon. Bay and inland waters light chop.
.THURSDAY NIGHT...Northwest winds 5 to 10 knots, becoming
northeast after midnight. Bay and inland waters light chop.
.FRIDAY...East winds around 5 knots, becoming northwest in the
afternoon. Bay and inland waters light chop.
.FRIDAY NIGHT...Northwest winds 5 to 10 knots, becoming northeast
after midnight. Bay and inland waters light chop.
.SATURDAY...Southeast winds around 5 knots, becoming southwest in
the afternoon. Bay and inland waters light chop.
.SATURDAY NIGHT...Northwest winds 5 to 10 knots, becoming
northeast after midnight. Bay and inland waters light chop.
.SUNDAY...North winds around 5 knots, becoming northwest 10 to
15 knots in the afternoon. Bay and inland waters a moderate chop.

$$

GMZ836-160615-
Charlotte Harbor and Pine Island Sound-
142 PM EDT Wed Apr 15 2026

.THIS AFTERNOON...Southeast winds around 5 knots, becoming west
late. Bay and inland waters light chop.
.TONIGHT...North winds 5 to 10 knots, becoming east after
midnight. Bay and inland waters light chop.
.THURSDAY...East winds 5 to 10 knots, becoming northwest in the
afternoon. Bay and inland waters light chop.
.THURSDAY NIGHT...Northwest winds 5 to 10 knots, becoming east
after midnight. Bay and inland waters light chop.
.FRIDAY...East winds around 5 knots, becoming west in the
afternoon. Bay and inland waters light chop.
.FRIDAY NIGHT...Northwest winds 5 to 10 knots, becoming east
after midnight. Bay and inland waters light chop.
.SATURDAY...Southeast winds around 5 knots, becoming southwest in
the afternoon. Bay and inland waters light chop.
.SATURDAY NIGHT...Northwest winds 5 to 10 knots, becoming north
after midnight. Bay and inland waters light chop.
.SUNDAY...North winds around 5 knots, becoming west 10 to
15 knots in the afternoon. Bay and inland waters a moderate chop.

$$

GMZ856-160615-
Coastal waters from Bonita Beach to Englewood FL out 20 NM-
142 PM EDT Wed Apr 15 2026

.THIS AFTERNOON...South winds around 5 knots, becoming west late.
Seas 1 foot or less. Wave Detail: Southeast 1 foot at 5 seconds.
Bay and inland waters light chop.
.TONIGHT...Northwest winds 5 to 10 knots, becoming east after
midnight. Seas 1 foot or less. Wave Detail: Northwest 1 foot at
2 seconds and east 1 foot at 3 seconds. Bay and inland waters
light chop.
.THURSDAY...East winds 5 to 10 knots, becoming northwest in the
afternoon. Seas 1 foot or less. Wave Detail: Southeast 1 foot at
4 seconds. Bay and inland waters light chop.
.THURSDAY NIGHT...Northwest winds 5 to 10 knots, becoming
northeast after midnight. Seas 1 foot or less. Wave Detail:
Northwest 1 foot at 2 seconds and southeast 1 foot at 4 seconds.
Bay and inland waters light chop.
.FRIDAY...East winds around 5 knots, becoming northwest in the
afternoon. Seas 1 foot or less. Wave Detail: North 1 foot at
3 seconds. Bay and inland waters light chop.
.FRIDAY NIGHT...Northwest winds 5 to 10 knots, becoming northeast
after midnight. Seas 1 foot or less. Wave Detail: Northwest
1 foot at 3 seconds. Bay and inland waters light chop.
.SATURDAY...Southeast winds around 5 knots, becoming southwest in
the afternoon. Seas 1 foot or less. Bay and inland waters light
chop.
.SATURDAY NIGHT...Northwest winds 5 to 10 knots, becoming north
after midnight. Seas 1 foot or less. Bay and inland waters light
chop.
.SUNDAY...Northwest winds 5 to 10 knots. Seas 1 foot or less. Bay
and inland waters light chop.

$$

GMZ876-160615-
Waters from Bonita Beach to Englewood FL out 20 to 60 NM-
142 PM EDT Wed Apr 15 2026

.THIS AFTERNOON...East winds 5 to 10 knots, becoming northeast
late. Seas around 2 feet. Wave Detail: Southeast 2 feet at
5 seconds.
.TONIGHT...North winds around 5 knots, becoming northeast after
midnight. Seas around 2 feet in the evening, then 1 foot or less.
Wave Detail: Southeast 2 feet at 5 seconds, becoming east 1 foot
at 3 seconds.
.THURSDAY...East winds 5 to 10 knots, becoming northeast in the
afternoon. Seas 1 foot or less. Wave Detail: Southeast 1 foot at
4 seconds.
.THURSDAY NIGHT...Northwest winds 5 to 10 knots, becoming
northeast after midnight. Seas 1 foot or less. Wave Detail:
Northwest 1 foot at 2 seconds and southeast 1 foot at 4 seconds.
.FRIDAY...Northeast winds around 5 knots. Seas 1 foot or less.
Wave Detail: North 1 foot at 3 seconds and southeast 1 foot at
4 seconds.
.FRIDAY NIGHT...North winds 5 to 10 knots, becoming northeast
after midnight. Seas 1 foot or less. Wave Detail: North 1 foot at
3 seconds.
.SATURDAY...Southeast winds around 5 knots. Seas 1 foot or less.
.SATURDAY NIGHT...Northwest winds around 5 knots, becoming
northeast after midnight. Seas 1 foot or less.
.SUNDAY...North winds 5 to 10 knots. Seas 1 foot or less.

$$

GMZ853-160615-
Coastal waters from Englewood to Tarpon Springs FL out 20 NM-
142 PM EDT Wed Apr 15 2026

.THIS AFTERNOON...South winds around 5 knots, becoming west late.
Seas 1 foot or less. Wave Detail: Southeast 1 foot at 5 seconds.
Bay and inland waters light chop.
.TONIGHT...Northwest winds 5 to 10 knots, becoming east after
midnight. Seas 1 foot or less. Wave Detail: Northwest 1 foot at
2 seconds and south 1 foot at 4 seconds. Bay and inland waters
light chop.
.THURSDAY...Southeast winds 5 to 10 knots, becoming west in the
afternoon. Seas 1 foot or less. Wave Detail: West 1 foot at
2 seconds and southeast 1 foot at 4 seconds. Bay and inland
waters light chop.
.THURSDAY NIGHT...Northwest winds 5 to 10 knots, becoming
northeast after midnight. Seas 1 foot or less. Wave Detail:
Northwest 1 foot at 2 seconds and south 1 foot at 4 seconds. Bay
and inland waters light chop.
.FRIDAY...East winds around 5 knots, becoming northwest in the
afternoon. Seas 1 foot or less. Wave Detail: North 1 foot at
2 seconds and south 1 foot at 4 seconds. Bay and inland waters
light chop.
.FRIDAY NIGHT...Northwest winds 5 to 10 knots, becoming northeast
after midnight. Seas 1 foot or less. Wave Detail: North 1 foot at
3 seconds and south 1 foot at 4 seconds. Bay and inland waters
light chop.
.SATURDAY...Southeast winds around 5 knots, becoming southwest in
the afternoon. Seas 1 foot or less. Bay and inland waters light
chop.
.SATURDAY NIGHT...Northwest winds 5 to 10 knots, becoming north
after midnight. Seas 1 foot or less. Bay and inland waters light
chop.
.SUNDAY...Northwest winds 5 to 10 knots. Seas 1 foot or less. Bay
and inland waters light chop.

$$

GMZ873-160615-
Waters from Englewood to Tarpon Springs FL out 20 to 60 NM-
142 PM EDT Wed Apr 15 2026

.THIS AFTERNOON...Southeast winds 5 to 10 knots, becoming south
late. Seas 1 foot or less. Wave Detail: Southeast 1 foot at
5 seconds.
.TONIGHT...Northwest winds around 5 knots, becoming east after
midnight. Seas 1 foot or less. Wave Detail: Southeast 1 foot at
4 seconds.
.THURSDAY...Southeast winds 5 to 10 knots. Seas 1 foot or less.
Wave Detail: Southeast 1 foot at 4 seconds.
.THURSDAY NIGHT...Northwest winds 5 to 10 knots, becoming north
after midnight. Seas 1 foot or less. Wave Detail: Southeast
1 foot at 4 seconds.
.FRIDAY...Northeast winds 5 to 10 knots. Seas 1 foot or less.
Wave Detail: Northeast 1 foot at 2 seconds and southeast 1 foot
at 4 seconds.
.FRIDAY NIGHT...North winds 5 to 10 knots, becoming northeast
after midnight. Seas 1 foot or less. Wave Detail: Northwest
1 foot at 2 seconds and southeast 1 foot at 4 seconds.
.SATURDAY...East winds around 5 knots, becoming south around
5 knots in the afternoon. Seas 1 foot or less.
.SATURDAY NIGHT...Northwest winds 5 to 10 knots, becoming north
after midnight. Seas 1 foot or less.
.SUNDAY...North winds 5 to 10 knots. Seas 1 foot or less.

$$

GMZ850-160615-
Coastal waters from Tarpon Springs to Suwannee River FL out 20 NM-
142 PM EDT Wed Apr 15 2026

.THIS AFTERNOON...West winds 5 to 10 knots. Seas 1 foot or less.
Wave Detail: Southeast 1 foot at 3 seconds. Bay and inland waters
light chop.
.TONIGHT...Northwest winds 5 to 10 knots, becoming east after
midnight. Seas 1 foot or less. Wave Detail: West 1 foot at
2 seconds and south 1 foot at 3 seconds. Bay and inland waters
light chop.
.THURSDAY...Southeast winds 5 to 10 knots, becoming west in the
afternoon. Seas 1 foot or less. Wave Detail: West 1 foot at
2 seconds and south 1 foot at 3 seconds. Bay and inland waters
light chop.
.THURSDAY NIGHT...Northwest winds 5 to 10 knots, becoming north
after midnight. Seas 1 foot or less. Wave Detail: West 1 foot at
2 seconds and south 1 foot at 4 seconds. Bay and inland waters
light chop.
.FRIDAY...East winds around 5 knots, becoming west in the
afternoon. Seas 1 foot or less. Wave Detail: Northwest 1 foot at
2 seconds and south 1 foot at 4 seconds. Bay and inland waters
light chop.
.FRIDAY NIGHT...Northwest winds 5 to 10 knots, becoming north
after midnight. Seas 1 foot or less. Wave Detail: Northwest
1 foot at 2 seconds and south 1 foot at 4 seconds. Bay and inland
waters light chop.
.SATURDAY...Southeast winds around 5 knots, becoming west in the
afternoon. Seas 1 foot or less. Bay and inland waters light chop.
.SATURDAY NIGHT...Northwest winds 5 to 10 knots, diminishing to
around 5 knots after midnight. Seas 1 foot or less. Bay and
inland waters light chop.
.SUNDAY...Northwest winds around 5 knots, becoming west in the
afternoon. Seas 1 foot or less. Bay and inland waters light chop.

$$

GMZ870-160615-
Waters from Tarpon Springs to Suwannee River FL out 20 to 60 NM-
142 PM EDT Wed Apr 15 2026

.THIS AFTERNOON...Southeast winds around 5 knots, becoming
southwest late. Seas 1 foot or less. Wave Detail: Southeast
1 foot at 4 seconds.
.TONIGHT...West winds 5 to 10 knots, becoming east after
midnight. Seas 1 foot or less. Wave Detail: Southeast 1 foot at
4 seconds.
.THURSDAY...Southeast winds 5 to 10 knots, becoming south in the
afternoon. Seas 1 foot or less. Wave Detail: Southeast 1 foot at
2 seconds and south 1 foot at 5 seconds.
.THURSDAY NIGHT...West winds 5 to 10 knots, becoming northwest
after midnight. Seas 1 foot or less. Wave Detail: West 1 foot at
2 seconds and south 1 foot at 5 seconds.
.FRIDAY...Northeast winds around 5 knots, becoming northwest
around 5 knots in the afternoon. Seas 1 foot or less. Wave
Detail: South 1 foot at 4 seconds.
.FRIDAY NIGHT...Northwest winds 5 to 10 knots, becoming north
after midnight. Seas 1 foot or less. Wave Detail: Northwest
1 foot at 2 seconds and south 1 foot at 4 seconds.
.SATURDAY...East winds around 5 knots, becoming southwest around
5 knots in the afternoon. Seas 1 foot or less.
.SATURDAY NIGHT...Northwest winds 5 to 10 knots. Seas 1 foot or
less.
.SUNDAY...Northwest winds 5 to 10 knots. Seas 1 foot or less.

$$






867 

FZMY50 PGUM 151750
CWFGUM

Coastal Waters Forecast for the Mariana Islands
National Weather Service Tiyan GU
350 AM ChST Thu Apr 16 2026

Marianas Waters out to 40 nautical miles

PMZ150-160845-
350 AM ChST Thu Apr 16 2026

.Synopsis for Marianas Waters...
Typhoon Sinlaku slowly continues to move away from Tinian and
Saipan. Due to the large wind field around the system, life
threatening marine conditions will persist through today for
Guam, this evening for Rota, and Friday for Tinian and Saipan. In
addition to winds, Sinlaku will produce heavy showers and
isolated thunderstorms through tonight. Combined seas are expected
to be around 15 to 20 ft for Guam, 20 to 25 feet for Rota, and 25
to 30 feet for Tinian and Saipan through tonight as Sinlaku moves
through.

$$

PMZ151-160845-
Guam Coastal Waters-
350 AM ChST Thu Apr 16 2026

...TROPICAL STORM WARNING IN EFFECT...
...TYPHOON WATCH REMAINS IN EFFECT...

.TODAY...Southwest tropical storm force wind to 35 kt, easing to
30 kt. Gusts up to 50 kt, decreasing to 40 kt this afternoon.
Seas 17 to 20 ft, subsiding to 15 to 20 ft.
.TONIGHT...Southwest wind 20 to 25 kt with gusts to 40 kt. Seas
12 to 15 ft.
.FRIDAY...Southwest wind 15 to 20 kt with gusts to 30 kt. Seas
11 to 14 ft.
.FRIDAY NIGHT...West wind 15 kt with gusts to 25 kt. Seas 9 to
12 ft. Wave Detail: Northwest 11 ft at 10 seconds and west 4 ft
at 5 seconds.
.SATURDAY...West wind 5 to 15 kt. Seas 7 to 9 ft. Wave Detail:
Northwest 9 ft at 10 seconds and west 3 ft at 4 seconds.
.SUNDAY AND MONDAY...East wind 5 kt. Seas 5 to 7 ft. Wave
Detail: North 7 ft at 10 seconds.

$$

PMZ152-160845-
Rota Coastal Waters-
350 AM ChST Thu Apr 16 2026

...TYPHOON WARNING IN EFFECT...

.TODAY...Southwest tropical storm force wind to 40 kt. Gusts up
to 60 kt, decreasing to 50 kt this afternoon. Seas 20 to 25 ft,
subsiding to 18 to 20 ft. Scattered showers with isolated
thunderstorms.
.TONIGHT...Southwest wind 30 kt with gusts to 40 kt. Seas 15 to
17 ft.
.FRIDAY...Southwest wind 20 to 25 kt with gusts to 35 kt. Seas
12 to 14 ft.
.FRIDAY NIGHT...West wind 15 to 20 kt. Seas 10 to 12 ft. Wave
Detail: Northwest 11 ft at 10 seconds and west 4 ft at 5 seconds.
.SATURDAY...West wind 10 to 15 kt. Seas 7 to 9 ft. Wave Detail:
Northwest 9 ft at 10 seconds and west 3 ft at 4 seconds.
.SUNDAY...Northwest wind 10 kt. Seas 6 to 8 ft. Wave Detail:
North 8 ft at 10 seconds. west 2 ft at 4 seconds.
.MONDAY...East wind 5 kt. Seas 5 to 7 ft. Wave Detail: North 6 ft
at 11 seconds.

$$

PMZ153-154-160845-
Tinian Coastal Waters-Saipan Coastal Waters-
350 AM ChST Thu Apr 16 2026

...TYPHOON WARNING IN EFFECT...

.TODAY...Southwest tropical storm force wind to 60 kt. Gusts up
to 80 kt, decreasing to 60 kt. Seas 25 to 30 ft, subsiding to 20
to 25 ft. Widespread showers with isolated thunderstorms.
.TONIGHT...Southwest tropical storm force wind to 35 kt with
gusts to 50 kt. Seas 17 to 20 ft. Scattered showers.
.FRIDAY...Southwest wind 20 to 25 kt with gusts to 40 kt. Seas
13 to 16 ft. Scattered showers.
.FRIDAY NIGHT...West wind 15 to 25 kt. Seas 10 to 12 ft. Wave
Detail: Northwest 11 ft at 10 seconds and west 5 ft at 7 seconds.
.SATURDAY...West wind 10 to 20 kt. Seas 8 to 10 ft. Wave Detail:
Northwest 9 ft at 9 seconds and west 4 ft at 5 seconds.
.SUNDAY...West wind 10 kt. Seas 6 to 8 ft. Wave Detail: North
7 ft at 11 seconds and west 2 ft at 4 seconds.
.MONDAY...East wind 5 kt. Seas 5 to 7 ft. Wave Detail: North 6 ft
at 11 seconds.

$$