Flash Flood Watch 1, NWS Boston/Norton, MA

188 
WGUS61 KBOX 181517
FFABOX

Flood Watch
National Weather Service Taunton MA
1117 AM EDT Sun Jun 18 2017

CTZ002-MAZ002-003-008>011-182330-
/O.CON.KBOX.FF.A.0001.170619T1600Z-170620T0800Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Hartford CT-Western Franklin MA-Eastern Franklin MA-
Western Hampshire MA-Western Hampden MA-Eastern Hampshire MA-
Eastern Hampden MA-
Including the cities of Hartford, Windsor Locks, Charlemont, 
Greenfield, Orange, Chesterfield, Blandford, Amherst, 
Northampton, and Springfield
1117 AM EDT Sun Jun 18 2017

...FLASH FLOOD WATCH REMAINS IN EFFECT FROM MONDAY AFTERNOON
THROUGH LATE MONDAY NIGHT...

The Flash Flood Watch continues for

* Portions of northern Connecticut and western Massachusetts, 
  including the following areas, in northern Connecticut, 
  Hartford. In western Massachusetts, Franklin, Hampden, and 
  Hampshire. 

* From Monday afternoon through late Monday night

* Numerous Showers and thunderstorms with areas of torrential 
  rainfall are expected to overspread the region during the mid 
  to late afternoon hours on Monday and continue well into the 
  overnight hours. 

* Localized rainfall rates in excess of 2 inches in less than an 
  hour are possible. This will bring the potential for localized 
  flash flooding, perhaps impacting the Monday evening commute. 
  Given the potential for these type of rainfall rates, 
  significant flooding in urban areas is also possible. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Flash Flood Watch means that conditions may develop that lead
to flash flooding. Flash flooding is a very dangerous situation.

You should monitor later forecasts and be prepared to take action
should Flash Flood Warnings be issued.

&&

$$

972 
WGUS61 KBOX 181952
FFABOX

URGENT - IMMEDIATE BROADCAST REQUESTED
Flood Watch
National Weather Service Taunton MA
352 PM EDT Sun Jun 18 2017

CTZ003-MAZ004-012-026-190400-
/O.EXA.KBOX.FF.A.0001.170619T1600Z-170620T0800Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Tolland CT-Northern Worcester MA-Southern Worcester MA-
Northern Middlesex MA-
Including the cities of Union, Vernon, Barre, Fitchburg, Milford,
Worcester, and Ayer
352 PM EDT Sun Jun 18 2017

...FLASH FLOOD WATCH IN EFFECT FROM MONDAY AFTERNOON THROUGH LATE
MONDAY NIGHT...

The National Weather Service in Taunton has expanded the

* Flash Flood Watch to include the following areas, in northern
  Connecticut, Tolland County. In Massachusetts, Worcester and
  Northern Middlesex Counties. 

* From tomorrow afternoon through late tomorrow night

* Numerous Showers and thunderstorms with areas of torrential
  rainfall are expected to overspread the region during the mid to
  late afternoon hours tomorrow and continue well into the 
  overnight hours. 

* Localized rainfall rates in excess of 2 inches in less than an 
  hour are possible. This will bring the potential for localized 
  flash flooding, perhaps impacting the Monday evening commute. 
  Given the potential for these type of rainfall rates, 
  significant flooding in urban areas is also possible. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Flash Flood Watch means that conditions may develop that lead
to flash flooding. Flash flooding is a very dangerous situation.

You should monitor later forecasts and be prepared to take action
should Flash Flood Warnings be issued.

&&

$$

CTZ002-MAZ002-003-008>011-190400-
/O.CON.KBOX.FF.A.0001.170619T1600Z-170620T0800Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Hartford CT-Western Franklin MA-Eastern Franklin MA-
Western Hampshire MA-Western Hampden MA-Eastern Hampshire MA-
Eastern Hampden MA-
Including the cities of Hartford, Windsor Locks, Charlemont, 
Greenfield, Orange, Chesterfield, Blandford, Amherst, 
Northampton, and Springfield
352 PM EDT Sun Jun 18 2017

...FLASH FLOOD WATCH REMAINS IN EFFECT FROM MONDAY AFTERNOON
THROUGH LATE MONDAY NIGHT...

The Flash Flood Watch continues for

* Portions of northern Connecticut and western Massachusetts,
  including the following areas, in northern Connecticut, Hartford
  County. In western Massachusetts, Franklin, Hampden, and 
  Hampshire Counties. 

* From tomorrow afternoon through late tomorrow night

* Numerous Showers and thunderstorms with areas of torrential 
  rainfall are expected to overspread the region during the mid 
  to late afternoon hours on Monday and continue well into the 
  overnight hours. 

* Localized rainfall rates in excess of 2 inches in less than an 
  hour are possible. This will bring the potential for localized 
  flash flooding, perhaps impacting the Monday evening commute. 
  Given the potential for these type of rainfall rates, 
  significant flooding in urban areas is also possible. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Flash Flood Watch means that conditions may develop that lead
to flash flooding. Flash flooding is a very dangerous situation.

You should monitor later forecasts and be prepared to take action
should Flash Flood Warnings be issued.

&&

$$

642 
WGUS61 KBOX 190149
FFABOX

Flood Watch
National Weather Service Taunton MA
949 PM EDT Sun Jun 18 2017

CTZ002-003-MAZ002>004-008>012-026-191000-
/O.CON.KBOX.FF.A.0001.170619T1600Z-170620T0800Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Hartford CT-Tolland CT-Western Franklin MA-Eastern Franklin MA-
Northern Worcester MA-Western Hampshire MA-Western Hampden MA-
Eastern Hampshire MA-Eastern Hampden MA-Southern Worcester MA-
Northern Middlesex MA-
Including the cities of Hartford, Windsor Locks, Union, Vernon, 
Charlemont, Greenfield, Orange, Barre, Fitchburg, Chesterfield, 
Blandford, Amherst, Northampton, Springfield, Milford, Worcester,
and Ayer
949 PM EDT Sun Jun 18 2017

...FLASH FLOOD WATCH REMAINS IN EFFECT FROM MONDAY AFTERNOON
THROUGH LATE MONDAY NIGHT...

The Flash Flood Watch continues for

* Portions of northern Connecticut and Massachusetts, including 
  the following areas, in northern Connecticut, Hartford and 
  Tolland. In Massachusetts, Franklin, Hampden, Hampshire, 
  Northern Middlesex, and Worcester. 

* From Monday afternoon through late Monday night

* Numerous Showers and thunderstorms with areas of torrential 
  rainfall are expected to overspread the region during the mid 
  to late afternoon hours on Monday and continue well into the 
  overnight hours. 

* Localized rainfall rates in excess of 2 inches in less than an 
  hour are possible. This will bring the potential for localized 
  flash flooding, perhaps impacting the Monday evening commute. 
  Given the potential for these type of rainfall rates, 
  significant flooding in urban areas is also possible. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Flash Flood Watch means that conditions may develop that lead
to flash flooding. Flash flooding is a very dangerous situation.

You should monitor later forecasts and be prepared to take action
should Flash Flood Warnings be issued.

&&

$$

321 
WGUS61 KBOX 190659
FFABOX

Flood Watch
National Weather Service Taunton MA
259 AM EDT Mon Jun 19 2017

CTZ002-003-MAZ002>004-008>012-026-191500-
/O.CON.KBOX.FF.A.0001.170619T1600Z-170620T0800Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Hartford CT-Tolland CT-Western Franklin MA-Eastern Franklin MA-
Northern Worcester MA-Western Hampshire MA-Western Hampden MA-
Eastern Hampshire MA-Eastern Hampden MA-Southern Worcester MA-
Northern Middlesex MA-
Including the cities of Hartford, Windsor Locks, Union, Vernon, 
Charlemont, Greenfield, Orange, Barre, Fitchburg, Chesterfield, 
Blandford, Amherst, Northampton, Springfield, Milford, Worcester,
and Ayer
259 AM EDT Mon Jun 19 2017

...FLASH FLOOD WATCH REMAINS IN EFFECT FROM NOON EDT TODAY
THROUGH LATE TONIGHT...

The Flash Flood Watch continues for

* Portions of northern Connecticut and Massachusetts, including 
  the following areas, in northern Connecticut, Hartford and 
  Tolland. In Massachusetts, Franklin, Hampden, Hampshire, 
  Northern Middlesex, and Worcester. 

* From noon EDT today through late tonight

* Numerous Showers and thunderstorms with areas of torrential
  rainfall will impact the region from mid afternoon into tonight.
  The time period of greatest concern is between 2 and 10 pm this
  evening. While the potential for localized flash flooding exists
  across the entire watch area, the highest risk appears to be 
  west of I-91.

* Localized rainfall rates in excess of 2 inches in less than an
  hour are possible. This will bring the potential for localized
  flash flooding, particularly west of I-91. Given the potential
  for these type of rainfall rate pockets of significant urban
  flooding is also a concern. This is especially if torrential 
  rain sets up across the Hartford/Springfield Metro areas during 
  the evening rush hour.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Flash Flood Watch means that conditions may develop that lead
to flash flooding. Flash flooding is a very dangerous situation.

You should monitor later forecasts and be prepared to take action
should Flash Flood Warnings be issued.

&&

$$

Frank

830 
WGUS61 KBOX 191422
FFABOX

Flood Watch
National Weather Service Taunton MA
1022 AM EDT Mon Jun 19 2017

CTZ002-003-MAZ002>004-008>012-026-192230-
/O.CON.KBOX.FF.A.0001.170619T1600Z-170620T0800Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Hartford CT-Tolland CT-Western Franklin MA-Eastern Franklin MA-
Northern Worcester MA-Western Hampshire MA-Western Hampden MA-
Eastern Hampshire MA-Eastern Hampden MA-Southern Worcester MA-
Northern Middlesex MA-
Including the cities of Hartford, Windsor Locks, Union, Vernon, 
Charlemont, Greenfield, Orange, Barre, Fitchburg, Chesterfield, 
Blandford, Amherst, Northampton, Springfield, Milford, Worcester,
and Ayer
1022 AM EDT Mon Jun 19 2017

...FLASH FLOOD WATCH REMAINS IN EFFECT THROUGH LATE TONIGHT...

The Flash Flood Watch continues for

* Portions of northern Connecticut and Massachusetts, including 
  the following areas, in northern Connecticut, Hartford and 
  Tolland. In Massachusetts, Franklin, Hampden, Hampshire, 
  Northern Middlesex, and Worcester. 

* From noon EDT today through late tonight

* Numerous Showers and thunderstorms with areas of torrential 
  rainfall will impact the region from mid afternoon into 
  tonight. The time period of greatest concern is between 2 and 
  10 pm this evening. While the potential for localized flash 
  flooding exists across the entire watch area, the highest risk 
  appears to be west of I-91. 

* Localized rainfall rates in excess of 2 inches in less than an 
  hour are possible. This will bring the potential for localized 
  flash flooding, particularly west of I-91. Given the potential 
  for these type of rainfall rate pockets of significant urban 
  flooding is also a concern. This is especially if torrential 
  rain sets up across the Hartford/Springfield Metro areas 
  during the evening rush hour. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Flash Flood Watch means that conditions may develop that lead
to flash flooding. Flash flooding is a very dangerous situation.

You should monitor later forecasts and be prepared to take action
should Flash Flood Warnings be issued.

&&

$$

455 
WGUS61 KBOX 192024
FFABOX

Flood Watch
National Weather Service Taunton MA
424 PM EDT Mon Jun 19 2017

CTZ002-003-MAZ002>004-008>012-026-200430-
/O.CON.KBOX.FF.A.0001.000000T0000Z-170620T0800Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Hartford CT-Tolland CT-Western Franklin MA-Eastern Franklin MA-
Northern Worcester MA-Western Hampshire MA-Western Hampden MA-
Eastern Hampshire MA-Eastern Hampden MA-Southern Worcester MA-
Northern Middlesex MA-
Including the cities of Hartford, Windsor Locks, Union, Vernon, 
Charlemont, Greenfield, Orange, Barre, Fitchburg, Chesterfield, 
Blandford, Amherst, Northampton, Springfield, Milford, Worcester,
and Ayer
424 PM EDT Mon Jun 19 2017

...FLASH FLOOD WATCH REMAINS IN EFFECT UNTIL 4 AM EDT TUESDAY...

The Flash Flood Watch continues for

* Portions of northern Connecticut and Massachusetts, including 
  the following areas, in northern Connecticut, Hartford and 
  Tolland. In Massachusetts, Franklin, Hampden, Hampshire, 
  Northern Middlesex, and Worcester. 

* Until 4 AM EDT Tuesday

* Numerous Showers and thunderstorms with areas of torrential
  rainfall will impact the region during this evening and into 
  tonight. The time period of greatest concern is thru 10 pm this 
  evening. While the potential for localized flash flooding exists
  across the entire watch area, the highest risk appears to be in
  the vicinity of I-91 and west of I-91. 

* Localized rainfall rates in excess of 2 inches in less than an
  hour are possible. This will bring the potential for localized
  flash flooding. Pockets of significant urban flooding are also 
  a concern. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Flash Flood Watch means that conditions may develop that lead
to flash flooding. Flash flooding is a very dangerous situation.

You should monitor later forecasts and be prepared to take action
should Flash Flood Warnings be issued.

&&

$$

NMB

923 
WGUS61 KBOX 200103
FFABOX

Flood Watch
National Weather Service Taunton MA
903 PM EDT Mon Jun 19 2017

CTZ002-003-MAZ002>004-008>012-026-200215-
/O.CAN.KBOX.FF.A.0001.000000T0000Z-170620T0800Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Hartford CT-Tolland CT-Western Franklin MA-Eastern Franklin MA-
Northern Worcester MA-Western Hampshire MA-Western Hampden MA-
Eastern Hampshire MA-Eastern Hampden MA-Southern Worcester MA-
Northern Middlesex MA-
Including the cities of Hartford, Windsor Locks, Union, Vernon, 
Charlemont, Greenfield, Orange, Barre, Fitchburg, Chesterfield, 
Blandford, Amherst, Northampton, Springfield, Milford, Worcester,
and Ayer
903 PM EDT Mon Jun 19 2017

...FLASH FLOOD WATCH IS CANCELLED...

The Flash Flood Watch for portions of northern Connecticut and
Massachusetts has been cancelled. 

The threat of flash flooding has ended. Showers and a few embedded
thunderstorms will move out of the area this evening. 

$$

Area Forecast Discussion
National Weather Service Taunton MA
857 PM EDT Sat Jun 17 2017

.SYNOPSIS...

Warm and humid days and foggy nights linger through Monday. A
cold front approaches from the west Monday, bringing a risk of
thunderstorms later Monday and Monday night. The front crosses
Southern New England on Tuesday. Seasonable temperatures and
lower humidity follow on Wednesday. Warmer temperatures return
late in the week.

&&

.NEAR TERM /UNTIL 6 AM SUNDAY MORNING/...

855 pm update...

***Dense Fog Advisory In Effect For The South Coast, Cape, And
 Islands Into Early Sunday Morning***

***Also watching the potential for a round of scattered showers
 with brief heavy rainfall impacting the southeast New England
 coast toward daybreak***

Light southerly flow with high dewpoint air moving over the
relatively cool ocean is a good recipe for dense fog development
along the south coast, Cape and Islands. Therefore, have gone
ahead and hoisted a Dense Fog Advisory through 8 am Sunday
morning in these locations. We may need to expand it further
northwest, but felt this was a good starting point and will
continue to monitor.

Other than the concern for dense fog, there appears to be a
decent shot at a round of scattered showers developing toward
daybreak along the southeast New England coast. Some brief heavy
showers and even an isolated t-storm can not be ruled out. Despite
upper level ridging, developing 30+ knot low level jet coupled
with a few hundred J/KG of elevated instability have us more
concerned about this potential. Some of the high resolution
guidance is hinting at this potential as well so have increased
pops.

As for low temps they should not fall much with most locales
only bottoming out in the middle to upper 60s. Surface warm
front still jammed up across northeast MA and not sure how much
northward progress it will make overnight, but either way will
only impact temps by a few degrees.

&&

.SHORT TERM /6 AM SUNDAY MORNING THROUGH SUNDAY NIGHT/...
Sunday...

Another round of fog/low stratus early should burn off more
quickly tomorrow during the AM hours thanks to continued rising
heights (ridging) and faster BL mixing developing away from the
immediate S coast.

As fog/clouds burn off expect increased risk for S-SW wind gusts
20-30 kt (roughly 25 to 35 mph) at times, so will need to watch
for the breaks of sun. Also, the better mixing expected as
breaks of sun occur, should tap the H85 airmass where temps will
be +15C to +17C, yielding afternoon highs in sunshine into the
mid 80s. Onshore flow will keep south coastal RI/MA much
cooler, holding in the 70s (potentially cooler if stratus hangs
longer than current forecast).

With high PWATS good BL development will struggle to mix out
the very high dwpts associated with the warm sector airmass.
Upper 60s to low 70s dwpts will make it feel quite oppressive
and allow heat indicies to inch into the upper 80s to near 90
in the warmest spots such as the upper CT valley and Merrimack
Valley.

Risk for shower/thunderstorm continues, however they are likely
to continue to be few and far between. Rising heights and
overall limited forcing will mitigate development across S New
England.  Noting SB CAPE values 500-1000j/kg, so should
something pop a risk for thunder/heavy rain exists. These will
have to be monitored, but given the lack of any trigger and some
capping represented by the rising heights, the general thunder
in latest SWODY2 from SPC make sense. Better forcing is
upstream.

Tomorrow night...
Very moist airmass remains with dwpts likely to stay in the
upper 60s and low 70s even into the overnight hours. This will
be the floor for overnight mins as well, so a hot sticky June
night expected.

Overnight low risk for SHRA/thunderstorms linger given little
change in the airmass. However, the lack of any apparent forcing
mechanism will once again limit coverage. Best chance will be
for any lingering convective activity that develops upstream
across NY/PA which will need to be monitored. Will continue to
focus POPS mainly W of the Worcester Hills and higher terrain of
central CT.

Winds may remain somewhat elevated overnight, though not as
strong as during the daylight hours. Little change in the LLJ
and warm overnight mins support at least some of these winds
mixing to the sfc.

&&

.LONG TERM /MONDAY THROUGH SATURDAY/...
Big Picture...

Closed low over the Great Lakes early in the week.  This lifts north
through Canada midweek, leaving zonal flow across the northern tier
of the USA the remainder of the week. Contour heights range from
near normal midweek to above normal late week, suggesting a period
of near normal temps midweek followed by a warm-up late week.

Model mass fields are similar through Wednesday, but show increasing
differences Thursday through Saturday. Thermal fields show a similar
variation. This leaves a moderate confidence Monday to Wednesday,
and low confidence Thursday to Saturday.

Details...

Monday...

Closed low north of the Great Lakes with trough axis across the
lakes. Ascending node of the supporting upper jet covers the Eastern
Great Lakes with the right entrance region across Western PA and
Central NY. Surface pattern shows a cold front aligning with this
jet. It also shows a lee trough extending south from the Hudson
Valley. Although the surface cold front is so far west, the lee
trough is in position to supply low level convergence while the
upper jet approaches late in the day to provide upper venting.
Forecast divergence fields aloft suggest this support may approach
us late in the day.

Stability parameters, while not unanimous, suggest sufficient
instability. SBCAPE for example is forecast at 1000-1500 J/Kg in CT
and Western MA and K index is in the 30s. Also of note is a strong
theta-e ridge across Western MA and NW CT late in the day.  All
models show winds at 850 mb forecast to reach 40-50 knots, while
winds at 500 mb are forecast at 40-50 knots late Monday and increase
to 70-80 knots Monday night. Wet Bulb Zero values are forecast at
13500 to 14500 feet.

Model timing of the onset of precip seems a little fast given the
location of the features.  But once we reach the afternoon/evening
the pattern seems favorable for showers/tstms across at least our
western areas...spreading east over Monday night.  Convection and
the strong winds aloft suggest the potential for strong and possibly
damaging wind gusts from late day/early night thunderstorms.  We
note the Day 3 outlook from SPC early this morning showed a slight
risk of severe storms for areas west of I-95 and an enhanced risk
west of the CT River. We will be monitoring this potential.

Tuesday...

The actual cold front moves through on Tuesday, bringing additional
chance of showers for part of the day followed by drying out after
cold fropa. Moisture profiles show a diminishing trend by Tuesday
afternoon, suggesting at least partial clearing. At the same time,
cold advection aloft will destabilize the airmass and may allow for
clouds to regenerate as well as a few scattered showers. Best chance
for this would be in Western areas.

Wednesday...

The upper trough and its cold pool will be overhead Wednesday. This
will bring an increased chance of diurnal clouds and scattered
showers. The cold temps aloft will also support deep mixing, with
temps aloft favoring surface temps in the mid 70s to lower 80s.

Thursday through Saturday...

High pressure builds over the region by Thursday bringing dry
weather but then moves off just as fast. Less confidence late week
due to difficulty in timing shortwaves in a zonal flow, especially
this many days out. At least one shortwave is noted in the Canadian
Prairies midweek. We are showing a chance of showers later Friday
into early Saturday, but this timing will likely change.

Temps aloft climb from around 10C midweek to the mid teens...so max
temps late week should be more generally in the 80s.

&&

.AVIATION /01Z SUNDAY THROUGH THURSDAY/...
Forecaster Confidence Levels...

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

855 pm update...

Tonight...Moderate confidence. Increasing low level moisture
will result in IFR to LIFR conditions overspreading the region in
low clouds and fog overnight. Worst of the fog should be near
the south coast, but it is a bit uncertain on how far northwest
the dense fog will spread overnight. Will continue to monitor.

Sunday...Moderate confidence.
Widespread IFR conditions early morning should improve to
mainly MVFR to even VFR by afternoon as the fog/low CIGS burn
off. SW wind gusts of 20 to 30 knots are expected to develop by
afternoon with the strongest of those winds along the coastal
plain.

Sunday night...Moderate confidence.
Another round of low clouds and fog develop with the potential
for a return to IFR conditions across much of S New England,
mainly due to low CIGS as winds will limit fog development away
from the S coast. S winds will continue to gust, mainly 20-25 kt
overnight.

KBOS Terminal...Moderate confidence. Cigs and Vsbys should lower
to IFR thresholds over the next few hours. Uncertain if dense
fog impacts the terminal overnight resulting in LIFR
conditions, but something will have to monitor.

KBDL Terminal...Moderate confidence. Cigs and Vsbys should lower
to IFR thresholds over the next few hours. Uncertain if dense
fog impacts the terminal overnight resulting in LIFR
conditions, but something will have to monitor.

Outlook /Monday through Thursday/... Moderate confidence.

Monday-Tuesday...

MVFR cigs and vsbys with areas of IFR in fog and developing showers.
Southwest winds will increase with gusts 25 to 30 knots. Potential
for strong thunderstorms Monday afternoon and early night especially
in Western Mass and adjacent CT. Strong straight-line winds would be
the largest concern.

A cold front sweeps through on Tuesday, ending the showers and
allowing drier air to move in during the afternoon. Conditions
improve to VFR at this time.

Wednesday-Thursday...

VFR.  Developing daytime clouds and scattered showers Wednesday,
which then diminish Wednesday evening. Fair weather Thursday.

&&

.MARINE...
Forecaster Confidence Levels...

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

Short Term /through Sunday Night/...

Tonight...High confidence.

Lingering swell continues with 5-6 ft seas mainly on the outer
ocean waters. Otherwise, a few showers but more areas of
fog/drizzle over the waters again, yielding very low visibility
at times.

Sunday and Sunday night...High confidence.

Increasing southerly flow will reach 25-30 kt near shore
(potentially a few Gale force gusts possible) and hold around 25
kt on the outer waters. These remain persistent after sunrise,
so wind driven waves also increase through the day and overnight
hours. Seas peak around 6 ft on the SE ocean waters, 5-6 ft
elsewhere outside of sounds and bays. However Narragansett bay
may see some seas near 3 ft the further up the bay one travels
thanks to persistent S flow. Little change in the overnight
conditions. Therefore Small Craft Advisories will linger well
into the overnight hours. Will need to watch for a second round
of fog over the waters, especially the waters S of New England.

Outlook /Monday through Thursday/... Moderate confidence.

Monday-Tuesday...

A cold front over New York Monday crosses the waters on Tuesday.
Persistent SW winds Monday with gusts 25-30 knots. Winds
diminish a little Tuesday once the front moves through, but
still gusts near 20 knots. Expect rough seas on the outer waters
and the exposed southern waters, such as RI and Block Island
Sounds, with heights 5 to 8 feet. Strong thunderstorms will be
possible over land, and some may affect the nearshore waters
during late Monday afternoon and early night.

A Small Craft Advisory will be needed.

Wednesday-Thursday...

Winds southwest to west during this time with gusts to 20 knots.
Showers will again bubble up over land Wednesday and may affect
nearshore waters. Quiet weather Thursday.

&&

.BOX WATCHES/WARNINGS/ADVISORIES...
CT...None.
MA...Dense Fog Advisory until 8 AM EDT Sunday for MAZ020>024.
RI...Dense Fog Advisory until 8 AM EDT Sunday for RIZ004>008.
MARINE...Small Craft Advisory from 11 AM Sunday to 5 AM EDT Monday for
     ANZ230>234-236-251.
     Small Craft Advisory until 8 AM EDT Monday for ANZ235-237-250-
     254>256.

&&

SYNOPSIS...WTB/Doody
NEAR TERM...Frank
SHORT TERM...Doody
LONG TERM...WTB
AVIATION...Frank/Doody/WTB
MARINE...WTB/Doody

Hazardous Weather Outlook
National Weather Service Taunton MA
833 PM EDT Sat Jun 17 2017

CTZ002>004-MAZ002>019-026-RIZ001>003-190045-
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-Northern Middlesex MA-
Northwest Providence RI-Southeast Providence RI-Western Kent RI-
833 PM EDT Sat Jun 17 2017

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

.DAY ONE...Tonight.

There is a low risk for dense fog tonight, with the best chance
across Southeast Massachusetts and Rhode Island.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

Monday and Tuesday...

Showers and thunderstorms will move across the region, especially
from Monday afternoon and Monday night. Some thunderstorms may
produce damaging winds, with the best chance in Western
Massachusetts and Northern Connecticut. Locally heavy downpours are
also possible, which could bring on flooding of poor-drainage areas.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

MAZ020>024-RIZ004>008-190045-
Southern Bristol MA-Southern Plymouth MA-Barnstable MA-Dukes MA-
Nantucket MA-Eastern Kent RI-Bristol RI-Washington RI-Newport RI-
Block Island RI-
833 PM EDT Sat Jun 17 2017

...DENSE FOG ADVISORY IN EFFECT UNTIL 8 AM EDT SUNDAY...

This Hazardous Weather Outlook is for southeastern Massachusetts,
northern Rhode Island and southern Rhode Island.

.DAY ONE...Tonight.

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

   Dense Fog Advisory.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

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

   Dense Fog Advisory.

Monday and Tuesday...

Showers and thunderstorms will move across the region, especially
from Monday afternoon and Monday night. Some thunderstorms may
produce damaging winds, with the best chance in Western
Massachusetts and Northern Connecticut. Locally heavy downpours are
also possible, which could bring on flooding of poor-drainage areas.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

ANZ230>237-250-251-254>256-190045-
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-
833 PM EDT Sat Jun 17 2017

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

.DAY ONE...Tonight.

Areas of dense fog will result in poor visibility at times.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

Monday and Tuesday...

Some thunderstorms later Monday through early Tuesday may produce
strong wind gusts. There is a risk of poor visibility in fog and
locally heavy downpours.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

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

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