Small Craft Advisory 76, NWS Boston/Norton, MA

366 
WHUS71 KBOX 250753
MWWBOX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Boston/Norton MA
353 AM EDT Fri May 25 2018

ANZ230-251600-
/O.CON.KBOX.SC.Y.0075.180525T1500Z-180526T0000Z/
Boston Harbor-
353 AM EDT Fri May 25 2018

...SMALL CRAFT ADVISORY FROM 11 AM THIS MORNING TO 8 PM EDT THIS 
EVENING...

* WINDS AND SEAS...Southwest winds 10 to 15 kt with gusts up to 
  25 kt. Waves 1 to 2 feet.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 25 to 33 knots
are expected to produce hazardous wave conditions to small craft.
Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in these conditions.

&&

$$

ANZ231-251-251600-
/O.CON.KBOX.SC.Y.0075.180525T1500Z-180526T0000Z/
Cape Cod Bay-Massachusetts Bay and Ipswich Bay-
353 AM EDT Fri May 25 2018

...SMALL CRAFT ADVISORY FROM 11 AM THIS MORNING TO 8 PM EDT THIS 
EVENING...

* WINDS AND SEAS...Southwest winds 10 to 15 kt with gusts up to 
  20 kt. Seas 1 to 3 feet.

$$

ANZ232>234-251600-
/O.CON.KBOX.SC.Y.0075.180525T1500Z-180526T0600Z/
Nantucket Sound-Vineyard Sound-Buzzards Bay-
353 AM EDT Fri May 25 2018

...SMALL CRAFT ADVISORY FROM 11 AM THIS MORNING TO 2 AM EDT 
SATURDAY...

* WINDS AND SEAS...Southwest winds 15 to 20 kt with gusts up to 
  25 kt. Seas 2 to 4 feet.

$$

ANZ250-251600-
/O.CON.KBOX.SC.Y.0076.180525T1500Z-180526T0600Z/
Coastal waters east of Ipswich Bay and the Stellwagen Bank
National Marine Sanctuary-
353 AM EDT Fri May 25 2018

...SMALL CRAFT ADVISORY FROM 11 AM THIS MORNING TO 2 AM EDT 
SATURDAY...

* WINDS AND SEAS...Southwest winds 10 to 15 kt with gusts up to 
  25 kt. Seas 2 to 4 feet.

$$

ANZ254>256-251600-
/O.CON.KBOX.SC.Y.0075.180525T1500Z-180527T0000Z/
Coastal waters from Provincetown MA to Chatham MA to Nantucket MA
out 20 nm-
Coastal Waters extending out to 25 nm South of Marthas Vineyard
and Nantucket-
Coastal Waters from Montauk NY to Marthas Vineyard extending out
to 20 nm South of Block Island-
353 AM EDT Fri May 25 2018

...SMALL CRAFT ADVISORY FROM 11 AM THIS MORNING TO 8 PM EDT 
SATURDAY...

* WINDS AND SEAS...Southwest winds 10 to 20 kt with gusts up to 
  25 kt. Seas 3 to 6 feet.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 25 to 33 knots
are expected to produce hazardous wave conditions to small craft.
Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in these conditions.

&&

$$

ANZ235-237-251600-
/O.CON.KBOX.SC.Y.0075.180525T1500Z-180526T1500Z/
Rhode Island Sound-Block Island Sound-
353 AM EDT Fri May 25 2018

...SMALL CRAFT ADVISORY FROM 11 AM THIS MORNING TO 11 AM EDT 
SATURDAY...

* WINDS AND SEAS...Southwest winds 10 to 20 kt with gusts up to 
  25 kt. Seas 3 to 5 feet.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 25 to 33 knots
are expected to produce hazardous wave conditions to small craft.
Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in these conditions.

&&

$$

ANZ236-251600-
/O.CON.KBOX.SC.Y.0075.180525T1500Z-180526T0000Z/
Narragansett Bay-
353 AM EDT Fri May 25 2018

...SMALL CRAFT ADVISORY FROM 11 AM THIS MORNING TO 8 PM EDT THIS 
EVENING...

* WINDS AND SEAS...Southwest winds 10 to 15 kt with gusts up to 
  25 kt. Waves 1 to 3 feet.

$$

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

You can follow us on Facebook at
www.facebook.com/NWSBoston

You can follow us on Twitter at
@NWSBoston

569 
WHUS71 KBOX 251403
MWWBOX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Boston/Norton MA
1003 AM EDT Fri May 25 2018

ANZ230-252215-
/O.CON.KBOX.SC.Y.0075.180525T1500Z-180526T0000Z/
Boston Harbor-
1003 AM EDT Fri May 25 2018

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 8 PM EDT THIS
EVENING...

* WINDS AND SEAS...West winds 10 to 15 kt with gusts up to 25 
  kt. Waves 1 to 2 feet.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 25 to 33 knots
are expected to produce hazardous wave conditions to small craft.
Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in these conditions.

&&

$$

ANZ231-251-252215-
/O.CON.KBOX.SC.Y.0075.180525T1500Z-180526T0000Z/
Cape Cod Bay-Massachusetts Bay and Ipswich Bay-
1003 AM EDT Fri May 25 2018

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 8 PM EDT THIS
EVENING...

* WINDS AND SEAS...Southwest winds 10 to 15 kt with gusts up to 
  25 kt. Seas 1 to 3 feet.

$$

ANZ232>234-252215-
/O.CON.KBOX.SC.Y.0075.180525T1500Z-180526T0600Z/
Nantucket Sound-Vineyard Sound-Buzzards Bay-
1003 AM EDT Fri May 25 2018

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 2 AM EDT
SATURDAY...

* WINDS AND SEAS...Southwest winds 15 to 20 kt with gusts up to 
  25 kt. Seas 2 to 4 feet.

$$

ANZ250-252215-
/O.CON.KBOX.SC.Y.0076.180525T1500Z-180526T0600Z/
Coastal waters east of Ipswich Bay and the Stellwagen Bank
National Marine Sanctuary-
1003 AM EDT Fri May 25 2018

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 2 AM EDT
SATURDAY...

* WINDS AND SEAS...Southwest winds 10 to 15 kt with gusts up to 
  25 kt. Seas 2 to 4 feet.

$$

ANZ254>256-252215-
/O.CON.KBOX.SC.Y.0075.180525T1500Z-180527T0000Z/
Coastal waters from Provincetown MA to Chatham MA to Nantucket MA
out 20 nm-
Coastal Waters extending out to 25 nm South of Marthas Vineyard
and Nantucket-
Coastal Waters from Montauk NY to Marthas Vineyard extending out
to 20 nm South of Block Island-
1003 AM EDT Fri May 25 2018

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 8 PM EDT
SATURDAY...

* WINDS AND SEAS...Southwest winds 10 to 20 kt with gusts up to 
  25 kt. Seas 3 to 6 feet.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 25 to 33 knots
are expected to produce hazardous wave conditions to small craft.
Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in these conditions.

&&

$$

ANZ235-237-252215-
/O.CON.KBOX.SC.Y.0075.180525T1500Z-180526T1500Z/
Rhode Island Sound-Block Island Sound-
1003 AM EDT Fri May 25 2018

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 11 AM EDT
SATURDAY...

* WINDS AND SEAS...Southwest winds 10 to 20 kt with gusts up to 
  25 kt. Seas 3 to 5 feet.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 25 to 33 knots
are expected to produce hazardous wave conditions to small craft.
Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in these conditions.

&&

$$

ANZ236-252215-
/O.CON.KBOX.SC.Y.0075.180525T1500Z-180526T0000Z/
Narragansett Bay-
1003 AM EDT Fri May 25 2018

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 8 PM EDT THIS
EVENING...

* WINDS AND SEAS...Southwest winds 10 to 15 kt with gusts up to 
  25 kt. Waves 1 to 3 feet.

$$

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

You can follow us on Facebook at
www.facebook.com/NWSBoston

You can follow us on Twitter at
@NWSBoston

317 
WHUS71 KBOX 252012
MWWBOX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Boston/Norton MA
412 PM EDT Fri May 25 2018

ANZ232>234-260000-
/O.EXT.KBOX.SC.Y.0075.000000T0000Z-180526T0000Z/
Nantucket Sound-Vineyard Sound-Buzzards Bay-
412 PM EDT Fri May 25 2018

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 8 PM EDT THIS
EVENING...

* WINDS AND SEAS...Southwest winds 15 to 20 kt with gusts up to 
  25 kt. Seas 2 to 4 feet.

$$

ANZ254>256-260415-
/O.EXT.KBOX.SC.Y.0075.000000T0000Z-180526T2000Z/
Coastal waters from Provincetown MA to Chatham MA to Nantucket MA
out 20 nm-
Coastal Waters extending out to 25 nm South of Marthas Vineyard
and Nantucket-
Coastal Waters from Montauk NY to Marthas Vineyard extending out
to 20 nm South of Block Island-
412 PM EDT Fri May 25 2018

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 4 PM EDT SATURDAY...

* WINDS AND SEAS...Southwest winds 10 to 20 kt with gusts up to 
  25 kt. Seas 3 to 6 feet.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 25 to 33 knots
are expected to produce hazardous wave conditions to small craft.
Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in these conditions.

&&

$$

ANZ230-260000-
/O.CON.KBOX.SC.Y.0075.000000T0000Z-180526T0000Z/
Boston Harbor-
412 PM EDT Fri May 25 2018

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 8 PM EDT THIS
EVENING...

* WINDS AND SEAS...Southwest winds around 15 kt with gusts up to 
  25 kt. Waves 1 to 2 feet.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 25 to 33 knots
are expected to produce hazardous wave conditions to small craft.
Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in these conditions.

&&

$$

ANZ231-251-260000-
/O.CON.KBOX.SC.Y.0075.000000T0000Z-180526T0000Z/
Cape Cod Bay-Massachusetts Bay and Ipswich Bay-
412 PM EDT Fri May 25 2018

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 8 PM EDT THIS
EVENING...

* WINDS AND SEAS...Southwest winds 15 to 20 kt with gusts up to 
  25 kt. Seas 1 to 3 feet.

$$

ANZ250-260415-
/O.CON.KBOX.SC.Y.0076.000000T0000Z-180526T0600Z/
Coastal waters east of Ipswich Bay and the Stellwagen Bank
National Marine Sanctuary-
412 PM EDT Fri May 25 2018

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 2 AM EDT
SATURDAY...

* WINDS AND SEAS...Southwest winds 15 to 20 kt with gusts up to 
  25 kt. Seas 2 to 4 feet.

$$

ANZ235-237-260415-
/O.CON.KBOX.SC.Y.0075.000000T0000Z-180526T1500Z/
Rhode Island Sound-Block Island Sound-
412 PM EDT Fri May 25 2018

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 11 AM EDT
SATURDAY...

* WINDS AND SEAS...Southwest winds 10 to 20 kt with gusts up to 
  25 kt. Seas 3 to 5 feet.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 25 to 33 knots
are expected to produce hazardous wave conditions to small craft.
Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in these conditions.

&&

$$

ANZ236-260000-
/O.CON.KBOX.SC.Y.0075.000000T0000Z-180526T0000Z/
Narragansett Bay-
412 PM EDT Fri May 25 2018

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 8 PM EDT THIS
EVENING...

* WINDS AND SEAS...Southwest winds 10 to 15 kt with gusts up to 25
  kt. Waves 1 to 2 feet, except 2 to 4 feet near the Bay entrance.

$$

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

You can follow us on Facebook at
www.facebook.com/NWSBoston

You can follow us on Twitter at
@NWSBoston

371 
WHUS71 KBOX 260004
MWWBOX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Boston/Norton MA
804 PM EDT Fri May 25 2018

ANZ230>234-236-251-260115-
/O.EXP.KBOX.SC.Y.0075.000000T0000Z-180526T0000Z/
Boston Harbor-Cape Cod Bay-Nantucket Sound-Vineyard Sound-
Buzzards Bay-Narragansett Bay-Massachusetts Bay and Ipswich Bay-
804 PM EDT Fri May 25 2018

...SMALL CRAFT ADVISORY HAS EXPIRED...

Winds and seas have diminished below small craft criteria.

$$

ANZ250-260600-
/O.CON.KBOX.SC.Y.0076.000000T0000Z-180526T0600Z/
Coastal waters east of Ipswich Bay and the Stellwagen Bank
National Marine Sanctuary-
804 PM EDT Fri May 25 2018

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 2 AM EDT
SATURDAY...

* WINDS AND SEAS...Southwest winds 15 to 20 kt with gusts up to 
  25 kt. Seas 2 to 4 feet.

$$

ANZ254>256-260815-
/O.CON.KBOX.SC.Y.0075.000000T0000Z-180526T2000Z/
Coastal waters from Provincetown MA to Chatham MA to Nantucket MA
out 20 nm-
Coastal Waters extending out to 25 nm South of Marthas Vineyard
and Nantucket-
Coastal Waters from Montauk NY to Marthas Vineyard extending out
to 20 nm South of Block Island-
804 PM EDT Fri May 25 2018

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 4 PM EDT
SATURDAY...

* WINDS AND SEAS...Southwest winds 10 to 20 kt with gusts up to 
  25 kt. Seas 3 to 6 feet.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 25 to 33 knots
are expected to produce hazardous wave conditions to small craft.
Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in these conditions.

&&

$$

ANZ235-237-260815-
/O.CON.KBOX.SC.Y.0075.000000T0000Z-180526T1500Z/
Rhode Island Sound-Block Island Sound-
804 PM EDT Fri May 25 2018

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 11 AM EDT
SATURDAY...

* WINDS AND SEAS...Southwest winds 10 to 20 kt with gusts up to 
  25 kt. Seas 3 to 5 feet.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 25 to 33 knots
are expected to produce hazardous wave conditions to small craft.
Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in these conditions.

&&

$$

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

You can follow us on Facebook at
www.facebook.com/NWSBoston

You can follow us on Twitter at
@NWSBoston

737 
WHUS71 KBOX 260156
MWWBOX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Boston/Norton MA
956 PM EDT Fri May 25 2018

ANZ233-234-261000-
/O.EXB.KBOX.SC.Y.0075.000000T0000Z-180526T1200Z/
Vineyard Sound-Buzzards Bay-
956 PM EDT Fri May 25 2018

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 AM EDT SATURDAY...

The National Weather Service in Boston/Norton has issued a Small
Craft Advisory, which is in effect until 8 AM EDT Saturday.

* WINDS AND SEAS...Southwest winds 10 to 15 kt with gusts up to 
  25 kt. Seas 3 to 5 feet.

$$

ANZ232-261000-
/O.EXB.KBOX.SC.Y.0075.000000T0000Z-180526T1200Z/
Nantucket Sound-
956 PM EDT Fri May 25 2018

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 AM EDT SATURDAY...

The National Weather Service in Boston/Norton has issued a Small
Craft Advisory, which is in effect until 8 AM EDT Saturday.

* WINDS AND SEAS...Southwest winds 15 to 20 kt with gusts up to 
  30 kt. Seas 3 to 5 feet.

$$

ANZ250-260600-
/O.CON.KBOX.SC.Y.0076.000000T0000Z-180526T0600Z/
Coastal waters east of Ipswich Bay and the Stellwagen Bank
National Marine Sanctuary-
956 PM EDT Fri May 25 2018

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 2 AM EDT
SATURDAY...

* WINDS AND SEAS...Southwest winds around 15 kt with gusts up to 
  25 kt. Seas 2 to 4 feet.

$$

ANZ254>256-261000-
/O.CON.KBOX.SC.Y.0075.000000T0000Z-180526T2000Z/
Coastal waters from Provincetown MA to Chatham MA to Nantucket MA
out 20 nm-
Coastal Waters extending out to 25 nm South of Marthas Vineyard
and Nantucket-
Coastal Waters from Montauk NY to Marthas Vineyard extending out
to 20 nm South of Block Island-
956 PM EDT Fri May 25 2018

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 4 PM EDT
SATURDAY...

* WINDS AND SEAS...Southwest winds 10 to 20 kt with gusts up to 
  30 kt. Seas 3 to 6 feet.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 25 to 33 knots
are expected to produce hazardous wave conditions to small craft.
Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in these conditions.

&&

$$

ANZ235-237-261000-
/O.CON.KBOX.SC.Y.0075.000000T0000Z-180526T1500Z/
Rhode Island Sound-Block Island Sound-
956 PM EDT Fri May 25 2018

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 11 AM EDT
SATURDAY...

* WINDS AND SEAS...Southwest winds 10 to 20 kt with gusts up to 
  30 kt. Seas 3 to 5 feet.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 25 to 33 knots
are expected to produce hazardous wave conditions to small craft.
Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in these conditions.

&&

$$

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

You can follow us on Facebook at
www.facebook.com/NWSBoston

You can follow us on Twitter at
@NWSBoston

Area Forecast Discussion
National Weather Service Boston/Norton MA
217 AM EDT Fri May 25 2018

.SYNOPSIS...

High pressure moving offshore, bringing warmer weather on gusty
southwest winds for today. A cold front drops south across the
region late Saturday into Saturday evening, bringing scattered
showers and thunderstorms followed by much cooler and unsettled
weather Sunday with some improvement by Monday. Mainly dry and
warmer weather returns for Tuesday through Thursday as high
pressure moves in.

&&

.NEAR TERM /THROUGH TODAY/...

2 am update...

*/ Highlights...

 - Low clouds / dense fog continues to hug SE-coastal New England
 - Area of lower conditions eroding, beginning to push E with
   increasing W flow, out to sea by daybreak
 - Notably warm temperatures today, some locations reaching 90

*/ Discussion...

Remainder of tonight...

GOES-16 nighttime microphysics continues to show the fog bank along
SE-coastal New England, starting to advect E with shifting low-level
mean-layer flow out of the W. Some temporary lower visibility down
to half a mile, SPECIAL WEATHER STATEMENT continues. Should see
lower conditions push out to sea by daybreak.

Otherwise clear conditions, light S winds, temperatures continue
to drop down to lows around the low to mid 50s, spot upper 40s.

Today...

Exceptionally warm for late May. High pressure SE, return S/SW
flow, deep layer mixing at a time when the thermal gradient
aloft is tightening lending to a faster low-level wind profile
in addition to warm air advection. Abundant sunshine, highs into
the upper 80s with spot 90s more likely in Hartford-Springfield
and Boston metro areas. Subsequent deep-layer mixing, the mix-
down of drier air and faster momentum. Expecting gusty winds
upwards of around 30 mph with dewpoints mixing down around 50
degrees. Hot, yet comfortable.

&&

.SHORT TERM /TONIGHT THROUGH 6 PM SATURDAY/...

Tonight...

Diminishing winds and quiet, dry weather. S/SW winds prevailing,
breezy along the S/SE-coast, ushering higher dewpoint air into
the region. This will limit temperatures to drop overnight to
their cross-over threshold (the dewpoint that which was observed
at time of max daytime heating). Lows around the lower 60s.

Saturday...

Chance of late-day scattered shower and thunderstorm activity. Yet
signals of an unremarkable convective-supporting environment. Rising
heights through the column, pockets of dry air, somewhat mid-level
confluence, perhaps upper-level speed diffluence. Only thing going,
another N-stream vortlobe, Canadian high pressure following, presses
a sagged cold front S/W as a back-door across S New England, a much
cooler airmass in tow. Certain low-level lift on a mild, somewhat
humid boundary layer airmass, with upper 50s to low 60s dewpoints.

High-res guidance spitting out some scattered activity, convective
with weak mid-level instability, pockets of negative showalters,
total-totals above 50, and K-indices exceeding 35. While noting
precipitable waters upwards of 1.5 inches and indications of mid-
level subsidence, can't rule out scattered shower and thunderstorm
activity along the back-door cold front, yet feel what goes up will
not sustain and come right back down given the absence of shear /
weak hodograph profile. More likely in regions with surface to H7
lapse rates of 7-8 C/km. Falling cores while noting inverted-V model
forecast soundings, in addition to lightning can't rule out gusty,
downdraft winds, especially given downdraft CAPE upwards of 2000
J/kg. Airmass thunderstorms overall, perhaps more focused atop high
terrain with any upsloping anabatic flow.

Chance PoPs continue but future forecasts may want to include threats
of heavy rain and gusty winds into the forecast grids. Difficult to
nail down where across the interior, away from the NE coast at least,
but as to when, the back door cold front pushing into afternoon during
peak interior heating per model forecast consensus, a late-day show
seems likely continuing into evening.

&&

.LONG TERM /SATURDAY NIGHT THROUGH THURSDAY/...

Highlights...

* Very warm and humid Sat with sct afternoon showers/t-storms
* Much cooler with occasional showers Sun
* Some improvement Mon but below normal temps
* Mainly dry and warmer weather returns Tue through Thu

Saturday into Saturday night...

Very warm airmass in place Sat ahead of approaching backdoor cold
front. 925 mb temps 22-23C supports highs upper 80s to perhaps some
lower 90s interior, but cooler near the south coast due to SW flow.
Dewpoints will be climbing into the 60s so it will be increasingly
humid. This front will move south into SNE during mid/late afternoon
reaching the south coast toward evening. Much cooler air will follow
with ENE winds and sharply falling temps. Locations in NE MA may
drop into the 60s by late afternoon and there could be some gusty
winds here as well Sat evening as the cooler air rushes in.
Environment destabilizes ahead of the front with MLCAPES approaching
1000 J/kg with moderate deep layer shear. However, mid level lapse
rates are unfavorable and will likely by a limiting factor to
widespread convection. Still expect sct showers/t-storms developing
in the afternoon and lingering into Sat evening.

Sunday into Monday...

Much cooler airmass Sunday as high pres builds south from the
Maritimes with NE flow. Models are also indicating a wave developing
on the frontal boundary south of New Eng which will likely bring
some rain at times with cool NE winds and temps potentially
remaining in the 50s. Some improvement expected Monday with mainly
dry weather but still cool with lots of clouds and onshore winds.

Tuesday through Thursday...

Mainly dry and warmer weather returns as mid level ridge builds into
the region with rising heights. Weak fropa Tue but it should come
through dry then high pres builds into the region Wed/Thu. Temps
should warm back well into the 70s and some 80s.

&&

.AVIATION /06Z FRIDAY THROUGH TUESDAY/...

Forecaster Confidence Levels...

Low - less than 30 percent.
Moderate - 30 to 60 percent.
High - greater than 60 percent.

Short Term /through Saturday/...High confidence.

6z update...

Though this morning...
IFR-VLIFR FG bank over the immediate RI and MA S-coast, gradually
push E with increasing W flow towards daybreak. Expect towards
12z only ACK may see some lingering lower CIGs / VSBYs.

Today...
Increasing SW winds immediately with sunrise. Gusts up to 25-30
kts through much of the day, sustained around 15 kts. SCT mid-
decks.

Tonight...
SW winds taper but remain brisk over S/SE coast with sustained
flow around 10 kts and gusts up to 20 kts.

Saturday...
SCT SHRA/TSRA activity towards late-day. TEMPO CIG / VSBY impacts
with RA/+RA. Can't rule out brief, gusty winds upwards of 30+ kts
with any activity, otherwise NE wind-shift late.

KBOS Terminal...High confidence in TAF.
SW winds becoming brisk around 15z. Can't rule out gusts as high
as 30 kts.

KBDL Terminal...High confidence in TAF.
SW winds becoming brisk around 15z. Can't rule out gusts as high
as 30 kts.

Outlook /Saturday Night through Tuesday/...Moderate confidence.

Saturday Night: Mainly MVFR, with local IFR possible. Breezy.
Chance SHRA, slight chance TSRA.

Sunday: Mainly MVFR, with areas IFR possible. Breezy. Chance
SHRA.

Sunday Night: Mainly MVFR, with areas IFR possible. Slight
chance SHRA.

Memorial Day: Mainly MVFR, with local IFR possible. Slight
chance SHRA.

Monday Night: Mainly VFR, with local MVFR possible. Slight
chance SHRA.

Tuesday: VFR.

&&

.MARINE...

Forecaster Confidence Levels...

Low - less than 30 percent.
Moderate - 30 to 60 percent.
High - greater than 60 percent.

Short Term /through Saturday/...High confidence.

2 pm update...

Low clouds and/or fog remain an issue for the waters near the
immediate SE-coast. Increasing SW winds, will see the associated
fog bank push E, exiting the waters close to 8 am.

Today into Tonight...
SMALL CRAFT ADVISORIES for all waters, especially S/SE, with
increasing westerly winds, busts up wards around 25 kts, thus
allowing waves to build at or above 5 feet. Winds dampening
overnight, advisories allowed to drop off.

Saturday...
SMALL CRAFT ADVISORIES may be needed. Increasing chances of
late day showers and thunderstorms ahead of a NE wind- shift
associated with a back door cold front. Gusty winds immediately
behind the front upwards of around 25 kts building seas upwards
of 5 feet. Greatest threat of SCA conditions over the E waters.

Outlook /Saturday Night through Tuesday/...Moderate confidence.

Saturday Night: Low risk for Small Craft Advisory winds with
gusts up to 25 kt. Seas locally approaching 5 ft. Chance of
rain showers, slight chance of thunderstorms.

Sunday through Sunday Night: Winds less than 25 kt. Areas of
rough seas. Chance of rain showers.

Memorial Day: Winds less than 25 kt. Seas up to 5 ft. Slight
chance of rain showers.

Monday Night: Winds less than 25 kt. Areas of seas approaching
5 ft.

Tuesday: Winds less than 25 kt. Seas locally approaching 5 ft.

&&

.BOX WATCHES/WARNINGS/ADVISORIES...

CT...None.
MA...None.
RI...Air Quality Alert from 11 AM this morning to 11 PM EDT this
     evening for RIZ001>008.
MARINE...Small Craft Advisory from 10 AM this morning to 2 AM EDT
     Saturday for ANZ231>234.
     Small Craft Advisory from 11 AM this morning to 8 PM EDT this
     evening for ANZ230-236-251.
     Small Craft Advisory from 11 AM this morning to 2 AM EDT
     Saturday for ANZ235-237.
     Small Craft Advisory until 8 PM EDT this evening for ANZ250.
     Small Craft Advisory from 8 AM this morning to 8 PM EDT this
     evening for ANZ254>256.

&&

SYNOPSIS...KJC/Sipprell
NEAR TERM...KJC/Sipprell
SHORT TERM...Sipprell
LONG TERM...JWD
AVIATION...KJC/Sipprell
MARINE...KJC/Sipprell

Hazardous Weather Outlook
National Weather Service Boston/Norton MA
430 PM EDT Thu May 24 2018

CTZ002>004-MAZ002>024-026-252030-
Hartford CT-Tolland CT-Windham CT-Western Franklin MA-
Eastern Franklin MA-Northern Worcester MA-Central Middlesex MA-
Western Essex MA-Eastern Essex MA-Western Hampshire MA-
Western Hampden MA-Eastern Hampshire MA-Eastern Hampden MA-
Southern Worcester MA-Western Norfolk MA-Southeast Middlesex MA-
Suffolk MA-Eastern Norfolk MA-Northern Bristol MA-
Western Plymouth MA-Eastern Plymouth MA-Southern Bristol MA-
Southern Plymouth MA-Barnstable MA-Dukes MA-Nantucket MA-
Northern Middlesex MA-
430 PM EDT Thu May 24 2018

This Hazardous Weather Outlook is for northern Connecticut, central
Massachusetts, eastern Massachusetts, northeastern Massachusetts,
southeastern Massachusetts and western Massachusetts.

.DAY ONE...Tonight.

No hazardous weather is expected at this time.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday.

No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

RIZ001>008-252030-
Northwest Providence RI-Southeast Providence RI-Western Kent RI-
Eastern Kent RI-Bristol RI-Washington RI-Newport RI-Block Island RI-
430 PM EDT Thu May 24 2018

...AIR QUALITY ALERT IN EFFECT FROM 11 AM TO 11 PM EDT FRIDAY...

This Hazardous Weather Outlook is for and Rhode Island.

.DAY ONE...Tonight.

No hazardous weather is expected at this time.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday.

Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.

   Air Quality Alert.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

ANZ230>237-250-251-254>256-252030-
Boston Harbor-Cape Cod Bay-Nantucket Sound-Vineyard Sound-
Buzzards Bay-Rhode Island Sound-Narragansett Bay-Block Island Sound-
Coastal waters east of Ipswich Bay and the Stellwagen Bank National
Marine Sanctuary-Massachusetts Bay and Ipswich Bay-
Coastal waters from Provincetown MA to Chatham MA to Nantucket MA
out 20 nm-
Coastal Waters extending out to 25 nm South of Marthas Vineyard and
Nantucket-
Coastal Waters from Montauk NY to Marthas Vineyard extending out to
20 nm South of Block Island-
430 PM EDT Thu May 24 2018

This Hazardous Weather Outlook is for Massachusetts and Rhode
Island coastal waters.

.DAY ONE...Tonight.

No hazardous weather is expected at this time.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday.

No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

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

You can follow us on Facebook at
www.facebook.com/NWSBoston

You can follow us on Twitter at
@NWSBoston

Special Weather Statement
National Weather Service Boston/Norton MA
943 PM EDT Thu May 24 2018

MAZ017>024-RIZ002>008-250500-
Northern Bristol MA-Western Plymouth MA-Eastern Plymouth MA-
Southern Bristol MA-Southern Plymouth MA-Barnstable MA-Dukes MA-
Nantucket MA-Southeast Providence RI-Western Kent RI-
Eastern Kent RI-Bristol RI-Washington RI-Newport RI-
Block Island RI-
Including the cities of Taunton, Brockton, Plymouth, Fall River,
New Bedford, Mattapoisett, Chatham, Falmouth, Provincetown,
Vineyard Haven, Nantucket, Providence, Coventry, West Greenwich,
East Greenwich, Warwick, West Warwick, Bristol, Narragansett,
Westerly, Newport, and New Shoreham
943 PM EDT Thu May 24 2018

...AREAS OF DENSE FOG...

Areas of dense fog, with visibility as low as a quarter mile at
times, will expand across southeastern Rhode Island and
Massachusetts through roughly midnight and then gradually push
out to sea towards daybreak, eroding from the west.

Anyone out driving should be ready for rapid fluctuations in
visibility. Use low beam headlights or fog lamps when encountering
fog, and allow extra braking distance between other motorists.

Sipprell

Special Weather Statement
National Weather Service Boston/Norton MA
1258 AM EDT Fri May 25 2018

MAZ020>024-RIZ006>008-250800-
Southern Bristol MA-Southern Plymouth MA-Barnstable MA-Dukes MA-
Nantucket MA-Washington RI-Newport RI-Block Island RI-
Including the cities of Fall River, New Bedford, Mattapoisett,
Chatham, Falmouth, Provincetown, Vineyard Haven, Nantucket,
Narragansett, Westerly, Newport, and New Shoreham
1258 AM EDT Fri May 25 2018

...AREAS OF DENSE FOG ACROSS SOUTHEAST COASTAL NEW ENGLAND...

Areas of dense fog, with visibility as low as a half a mile at
times, continues to impact the immediate south coast of Rhode
Island and Massachusetts. Through daybreak, the fog bank will push
off to the east and out to sea allowing visibility to improve.

Anyone out driving should be ready for rapid fluctuations in
visibility. Use low beam headlights or fog lamps when encountering
fog, and allow extra braking distance between other motorists.

Sipprell