Alert archive / Massachusetts / Freeze Warnings in 2017

Freeze Warning 1, NWS Boston/Norton, MA

November 8, 20174 counties in Massachusetts; Bristol County, Washington County, Rhode Island

NWS Boston/Norton, MA issued this freeze warning at Nov 8, 2017, 3:34 AM EST for 4 counties in Massachusetts; Bristol County, Washington County, Rhode Island. It took effect at Nov 9, 2017, 12:00 AM EST. It was in force for 8 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Nov 8, 2017, 3:34 AM EST (08:34 UTC)
In effect from
Nov 9, 2017, 12:00 AM EST
Expired
Nov 9, 2017, 8:00 AM EST
In force
8 hr
Issued by
NWS Boston/Norton, MA

Counties Bristol County, MA, Norfolk County, MA, Plymouth County, MA, Suffolk County, MA, Bristol County, RI, Washington County, RI

The radar

The Boston radar (KBOX), 7 km from the middle of the area, began a volume at 08:33 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Chatham, MA (KCHH), launched 00:00Z, 8.6 hours before the alert went out and 102 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Chatham, MA at 00:00Z on 2017-11-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Chatham, MA at 00:00Z on 2017-11-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -1 square meters per square second.1939587897Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
823 m above ground
0-6 km bulk shear
68 kt
0-1 km storm-relative helicity
-1 m²/s²
0-3 km storm-relative helicity
151 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

109 
WWUS71 KBOX 080834
NPWBOX

URGENT - WEATHER MESSAGE
National Weather Service Taunton MA
334 AM EST Wed Nov 8 2017

MAZ015-020-021-RIZ005-006-081645-
/O.NEW.KBOX.FZ.W.0001.171109T0500Z-171109T1300Z/
Suffolk MA-Southern Bristol MA-Southern Plymouth MA-Bristol RI-
Washington RI-
Including the cities of Boston, Fall River, New Bedford, 
Mattapoisett, Bristol, Narragansett, and Westerly
334 AM EST Wed Nov 8 2017

...FREEZE WARNING IN EFFECT FROM MIDNIGHT TONIGHT TO 8 AM EST
THURSDAY...

The National Weather Service in Taunton has issued a Freeze
Warning, which is in effect from midnight tonight to 8 AM EST
Thursday.

* Location...South coast of Massachusetts and Rhode Island and 
  Boston.

* Temperatures...Lows in the upper 20s to lower 30s.

* Timing...After midnight.

* Impacts...Freezing temperatures will kill crops and other 
  sensitive vegetation.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Freeze Warning means sub-freezing temperatures are imminent or
highly likely. These conditions will kill crops and other
sensitive vegetation.

&&

$$

MAZ022-RIZ007-081645-
/O.NEW.KBOX.FR.Y.0006.171109T0500Z-171109T1300Z/
Barnstable MA-Newport RI-
Including the cities of Chatham, Falmouth, Provincetown, 
and Newport
334 AM EST Wed Nov 8 2017

...FROST ADVISORY IN EFFECT FROM MIDNIGHT TONIGHT TO 8 AM EST
THURSDAY...

The National Weather Service in Taunton has issued a Frost
Advisory, which is in effect from midnight tonight to 8 AM EST
Thursday.

* Location...Newport county in Rhode Island and Cape Cod.

* Temperatures...Lows in the mid 30s.

* Timing...After midnight.

* Impacts...Sensitive outdoor plants may be killed if left 
  uncovered.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Frost Advisory means that widespread frost is expected.
Sensitive outdoor plants may be killed if left uncovered.

&&

$$

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
6 follow-up statements
320 
WWUS71 KBOX 081620
NPWBOX

URGENT - WEATHER MESSAGE
National Weather Service Taunton MA
1120 AM EST Wed Nov 8 2017

MAZ015-020-021-RIZ005-006-090030-
/O.CON.KBOX.FZ.W.0001.171109T0500Z-171109T1300Z/
Suffolk MA-Southern Bristol MA-Southern Plymouth MA-Bristol RI-
Washington RI-
Including the cities of Boston, Fall River, New Bedford, 
Mattapoisett, Bristol, Narragansett, and Westerly
1120 AM EST Wed Nov 8 2017

...FREEZE WARNING FROM MIDNIGHT TONIGHT TO 8 AM EST THURSDAY...

* Locations...Include the south coast of Massachusetts, northern
  and western areas of Rhode Island, and Boston.

* Low Temperatures...Are forecast in the upper 20s to low 30s. 

* Timing...After midnight into early Thursday morning.

* Impacts...Freezing temperatures will kill crops and other 
  sensitive vegetation.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Freeze Warning means sub-freezing temperatures are imminent or
highly likely. These conditions will kill crops and other
sensitive vegetation.

&&

$$

MAZ022-RIZ007-090030-
/O.CON.KBOX.FR.Y.0006.171109T0500Z-171109T1300Z/
Barnstable MA-Newport RI-
Including the cities of Chatham, Falmouth, Provincetown, 
and Newport
1120 AM EST Wed Nov 8 2017

...FROST ADVISORY FROM MIDNIGHT TONIGHT TO 8 AM EST THURSDAY...

* Locations...Include Newport County in Rhode Island and Cape 
  Cod.

* Low Temperatures...Are forecast in the upper 30s.

* Timing...After midnight into early Thursday morning.

* Impacts...Sensitive outdoor plants may be killed if left 
  uncovered.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Frost Advisory means that widespread frost is expected.
Sensitive outdoor plants may be killed if left uncovered.

&&

$$

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
699 
WWUS71 KBOX 082007
NPWBOX

URGENT - WEATHER MESSAGE
National Weather Service Taunton MA
307 PM EST Wed Nov 8 2017

MAZ015-020-021-RIZ005-006-090415-
/O.CON.KBOX.FZ.W.0001.171109T0500Z-171109T1300Z/
Suffolk MA-Southern Bristol MA-Southern Plymouth MA-Bristol RI-
Washington RI-
Including the cities of Boston, Fall River, New Bedford, 
Mattapoisett, Bristol, Narragansett, and Westerly
307 PM EST Wed Nov 8 2017

...FREEZE WARNING FROM MIDNIGHT TONIGHT TO 8 AM EST THURSDAY...

* Locations...Include the south coast of Massachusetts, northern 
  and western areas of Rhode Island, and Boston.

* Low Temperatures...Are forecast in the upper 20s to low 30s.

* Timing...After midnight into early Thursday morning.

* Impacts...Freezing temperatures will kill crops and other 
  sensitive vegetation.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Freeze Warning means sub-freezing temperatures are imminent or
highly likely. These conditions will kill crops and other
sensitive vegetation.

&&

$$

MAZ023-090415-
/O.EXA.KBOX.FR.Y.0006.171109T0500Z-171109T1300Z/
Dukes MA-
Including the city of Vineyard Haven
307 PM EST Wed Nov 8 2017

...FROST ADVISORY FROM MIDNIGHT TONIGHT TO 8 AM EST THURSDAY...

The National Weather Service in Taunton has issued a Frost
Advisory, which is in effect from midnight tonight to 8 AM EST
Thursday.

* Locations...Include Marthas Vineyard. 

* Low Temperatures...Are forecast in the mid 30s.

* Timing...After midnight into early Thursday morning.

* Impacts...Sensitive outdoor plants may be killed if left
  uncovered.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Frost Advisory means that widespread frost is expected.
Sensitive outdoor plants may be killed if left uncovered.

&&

$$

MAZ022-RIZ007-090415-
/O.CON.KBOX.FR.Y.0006.171109T0500Z-171109T1300Z/
Barnstable MA-Newport RI-
Including the cities of Chatham, Falmouth, Provincetown, 
and Newport
307 PM EST Wed Nov 8 2017

...FROST ADVISORY FROM MIDNIGHT TONIGHT TO 8 AM EST THURSDAY...

* Locations...Include Newport County in Rhode Island and Cape 
  Cod.

* Low Temperatures...Are forecast in the upper 30s.

* Timing...After midnight into early Thursday morning.

* Impacts...Sensitive outdoor plants may be killed if left 
  uncovered.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Frost Advisory means that widespread frost is expected.
Sensitive outdoor plants may be killed if left uncovered.

&&

$$

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
348 
WWUS71 KBOX 082053
NPWBOX

URGENT - WEATHER MESSAGE
National Weather Service Taunton MA
353 PM EST Wed Nov 8 2017

MAZ015-020-021-RIZ005-006-090500-
/O.CON.KBOX.FZ.W.0001.171109T0500Z-171109T1300Z/
Suffolk MA-Southern Bristol MA-Southern Plymouth MA-Bristol RI-
Washington RI-
Including the cities of Boston, Fall River, New Bedford, 
Mattapoisett, Bristol, Narragansett, and Westerly
353 PM EST Wed Nov 8 2017

...FREEZE WARNING FROM MIDNIGHT TONIGHT TO 8 AM EST THURSDAY...

* Locations...Include the south coast of Massachusetts, northern 
  and western areas of Rhode Island, and Boston.

* Low Temperatures...Are forecast in the upper 20s to low 30s.

* Timing...After midnight into early Thursday morning.

* Impacts...Freezing temperatures will kill crops and other 
  sensitive vegetation.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Freeze Warning means sub-freezing temperatures are imminent or
highly likely. These conditions will kill crops and other
sensitive vegetation.

&&

$$

MAZ022-023-RIZ007-090500-
/O.CON.KBOX.FR.Y.0006.171109T0500Z-171109T1300Z/
Barnstable MA-Dukes MA-Newport RI-
Including the cities of Chatham, Falmouth, Provincetown, 
Vineyard Haven, and Newport
353 PM EST Wed Nov 8 2017

...FROST ADVISORY FROM MIDNIGHT TONIGHT TO 8 AM EST THURSDAY...

* Locations...Include Newport County in Rhode Island, Cape Cod,
  and Marthas Vineyard

* Low Temperatures...Are forecast in the low to mid 30s.

* Timing...After midnight into early Thursday morning.

* Impacts...Sensitive outdoor plants may be killed if left 
  uncovered.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Frost Advisory means that widespread frost is expected.
Sensitive outdoor plants may be killed if left uncovered.

&&

$$

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
722 
WWUS71 KBOX 090457
NPWBOX

URGENT - WEATHER MESSAGE
National Weather Service Taunton MA
1157 PM EST Wed Nov 8 2017

MAZ015-020-021-RIZ005-006-091300-
/O.CON.KBOX.FZ.W.0001.171109T0500Z-171109T1300Z/
Suffolk MA-Southern Bristol MA-Southern Plymouth MA-Bristol RI-
Washington RI-
Including the cities of Boston, Fall River, New Bedford, 
Mattapoisett, Bristol, Narragansett, and Westerly
1157 PM EST Wed Nov 8 2017

...FREEZE WARNING REMAINS IN EFFECT UNTIL 8 AM EST THURSDAY...

* Locations...Include the south coast of Massachusetts, northern 
  and western areas of Rhode Island, and Boston.

* Low Temperatures...Are forecast in the upper 20s to low 30s.

* Timing...After midnight into early Thursday morning.

* Impacts...Freezing temperatures will kill crops and other 
  sensitive vegetation.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Freeze Warning means sub-freezing temperatures are imminent or
highly likely. These conditions will kill crops and other
sensitive vegetation.

&&

$$

MAZ022-023-RIZ007-091300-
/O.CON.KBOX.FR.Y.0006.171109T0500Z-171109T1300Z/
Barnstable MA-Dukes MA-Newport RI-
Including the cities of Chatham, Falmouth, Provincetown, 
Vineyard Haven, and Newport
1157 PM EST Wed Nov 8 2017

...FROST ADVISORY REMAINS IN EFFECT UNTIL 8 AM EST THURSDAY...

* Locations...Include Newport County in Rhode Island, Cape Cod, 
  and Marthas Vineyard

* Low Temperatures...Are forecast in the low to mid 30s.

* Timing...After midnight into early Thursday morning.

* Impacts...Sensitive outdoor plants may be killed if left 
  uncovered.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Frost Advisory means that widespread frost is expected.
Sensitive outdoor plants may be killed if left uncovered.

&&

$$

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
808 
WWUS71 KBOX 090835
NPWBOX

URGENT - WEATHER MESSAGE
National Weather Service Taunton MA
335 AM EST Thu Nov 9 2017

MAZ022-023-RIZ007-091645-
/O.CAN.KBOX.FR.Y.0006.000000T0000Z-171109T1300Z/
/O.NEW.KBOX.FZ.A.0001.171111T0000Z-171111T1300Z/
Barnstable MA-Dukes MA-Newport RI-
Including the cities of Chatham, Falmouth, Provincetown, 
Vineyard Haven, and Newport
335 AM EST Thu Nov 9 2017

...FREEZE WATCH IN EFFECT FROM FRIDAY EVENING THROUGH SATURDAY
MORNING...
...FROST ADVISORY IS CANCELLED...

The National Weather Service in Taunton has issued a Freeze
Watch, which is in effect from Friday evening through Saturday
morning. The Frost Advisory has been cancelled.

* Temperatures...In the low to mid 20s.

* Locations...Include Newport County in Rhode Island, Cape Cod, 
  and Marthas Vineyard

* Timing...Friday evening into Saturday morning.

* Impacts...Sensitive outdoor plants may be killed if left 
  uncovered.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Freeze Watch means sub-freezing temperatures are possible.
These conditions could kill crops and other sensitive vegetation.

&&

$$

MAZ015-020-021-RIZ005-006-091300-
/O.CON.KBOX.FZ.W.0001.000000T0000Z-171109T1300Z/
Suffolk MA-Southern Bristol MA-Southern Plymouth MA-Bristol RI-
Washington RI-
Including the cities of Boston, Fall River, New Bedford, 
Mattapoisett, Bristol, Narragansett, and Westerly
335 AM EST Thu Nov 9 2017

...FREEZE WARNING REMAINS IN EFFECT UNTIL 8 AM EST THIS MORNING...

* Locations...Include the south coast of Massachusetts, northern 
  and western areas of Rhode Island, and Boston.

* Low Temperatures...Are forecast in the upper 20s to low 30s.

* Timing...through a few hours after sunrise this morning.

* Impacts...Freezing temperatures will kill crops and other 
  sensitive vegetation.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Freeze Warning means sub-freezing temperatures are imminent or
highly likely. These conditions will kill crops and other
sensitive vegetation.

&&

$$

MAZ002-008-009-091645-
/O.NEW.KBOX.WI.Y.0024.171110T0900Z-171110T1700Z/
Western Franklin MA-Western Hampshire MA-Western Hampden MA-
Including the cities of Charlemont, Chesterfield, and Blandford
335 AM EST Thu Nov 9 2017

...WIND ADVISORY IN EFFECT FROM 4 AM TO NOON EST FRIDAY...

The National Weather Service in Taunton has issued a Wind
Advisory, which is in effect from 4 AM to noon EST Friday.

* Location...include the east slopes of the Berkshires.

* Winds...Northwest 15 to 25 mph with gusts up to 45 mph.

* Timing...Friday morning.

* Impacts...Winds of this magnitude may bring down some limbs or
  small trees.  Isolated power outages are possible.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Wind Advisory means that sustained winds of 31 to 39 mph are
expected, with gusts between 46 to 57 mph. Winds this strong are
capable of downing small tree limbs and branches, possibly
causing isolated power outages. Driving can also be difficult,
especially for high profile vehicles. Use extra caution.

&&

$$

MAZ024-RIZ008-091645-
/O.NEW.KBOX.FZ.A.0001.171111T0000Z-171111T1300Z/
Nantucket MA-Block Island RI-
Including the cities of Nantucket and New Shoreham
335 AM EST Thu Nov 9 2017

...FREEZE WATCH IN EFFECT FROM FRIDAY EVENING THROUGH SATURDAY
MORNING...

The National Weather Service in Taunton has issued a Freeze
Watch, which is in effect from Friday evening through Saturday
morning.

* Location...Include Block Island and Nantucket

* Temperatures...In the mid 20s.

* Timing...Friday evening into Saturday morning.

* Impacts...Freezing temperatures will kill crops and other 
  sensitive vegetation.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Freeze Watch means sub-freezing temperatures are possible.
These conditions could kill crops and other sensitive vegetation.

&&

$$

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
887 
WWUS71 KBOX 091259
NPWBOX

URGENT - WEATHER MESSAGE
National Weather Service Taunton MA
759 AM EST Thu Nov 9 2017

MAZ015-020-021-RIZ005-006-091400-
/O.EXP.KBOX.FZ.W.0001.000000T0000Z-171109T1300Z/
Suffolk MA-Southern Bristol MA-Southern Plymouth MA-Bristol RI-
Washington RI-
Including the cities of Boston, Fall River, New Bedford, 
Mattapoisett, Bristol, Narragansett, and Westerly
759 AM EST Thu Nov 9 2017

...FREEZE WARNING WILL EXPIRE AT 8 AM EST THIS MORNING...

Temperatures have risen above freezing across the warning area.

$$

MAZ002-008-009-092100-
/O.CON.KBOX.WI.Y.0024.171110T0900Z-171110T1700Z/
Western Franklin MA-Western Hampshire MA-Western Hampden MA-
Including the cities of Charlemont, Chesterfield, and Blandford
759 AM EST Thu Nov 9 2017

...WIND ADVISORY REMAINS IN EFFECT FROM 4 AM TO NOON EST FRIDAY...

* Location...Include the east slopes of the Berkshires.

* Winds...Northwest 15 to 20 mph with gusts up to 45 mph.

* Timing...Friday morning.

* Impacts...Winds of this magnitude may bring down some limbs or 
  small trees. Isolated power outages are possible. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Wind Advisory means that sustained winds of 31 to 39 mph are
expected, with gusts between 46 to 57 mph. Winds this strong are
capable of downing small tree limbs and branches, possibly
causing isolated power outages. Driving can also be difficult,
especially for high profile vehicles. Use extra caution.

&&

$$

MAZ022>024-RIZ007-008-092100-
/O.CON.KBOX.FZ.A.0001.171111T0000Z-171111T1300Z/
Barnstable MA-Dukes MA-Nantucket MA-Newport RI-Block Island RI-
Including the cities of Chatham, Falmouth, Provincetown, 
Vineyard Haven, Nantucket, Newport, and New Shoreham
759 AM EST Thu Nov 9 2017

...FREEZE WATCH REMAINS IN EFFECT FROM FRIDAY EVENING THROUGH
SATURDAY MORNING...

* Location...Include Block Island and Nantucket.

* Temperatures...In the upper 20s.

* Timing...Friday evening into Saturday morning.

* Impacts...Freezing temperatures will kill crops and other 
  sensitive vegetation.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Freeze Watch means sub-freezing temperatures are possible.
These conditions could kill crops and other sensitive vegetation.

&&

$$

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

What forecasters said that day

The local office's own words before this freeze warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Boston/Norton, MA wrote its last area forecast discussion before this freeze warning went out at Nov 8, 3:32 AM EST, 2 minutes earlier.

Area forecast discussion, Nov 8, 3:32 AM EST, 2 minutes before
Area Forecast Discussion
National Weather Service Taunton MA
332 AM EST Wed Nov 8 2017

.SYNOPSIS...
High pressure will bring dry and cool conditions through
Thursday. An arctic front may trigger a few rain/snow showers
Thursday evening then usher unseasonably cold air into the
region for Friday and Saturday. There is a chance of
precipitation for Monday into Tuesday, but confidence is low at
this time. High pressure then builds into the area for mid
week.

&&

.NEAR TERM /UNTIL 6 PM THIS EVENING/...
Low pres moves offshore this morning as high pres builds in from
the west. A few lingering showers possible Cape/Islands early,
otherwise a dry and cool day. The column is drying from the NW
which will bring increasing sunshine today across much of the
region, but low level moisture will hang tough across SE MA and
especially Cape/Islands where clouds will persist much of the
day. A chilly day today with 925 mb temps near zero which will
result in highs mostly in the 40s to near 50 immediate south
coast. Gusty N/NE winds Cape/Islands will begin to diminish
this afternoon.

&&

.SHORT TERM /6 PM THIS EVENING THROUGH 6 PM THURSDAY/...
Tonight...
High pres builds over New Eng with clear skies and light winds,
but persistent low level moisture will keep some clouds around
over the Cape/Islands. Ideal radiational cooling will lead to a
cold night with lows in the 20s and some upper teens possible
for the CT valley in northern MA. Temps low/mid 30s near the
coast. Freeze warnings and frost advisories will be issued for
the south coast region and BOS metro where growing season is
still active.

Thursday...
Robust mid level trough and attending arctic front will be
moving through the Great Lakes, but high pres will remain
across New Eng bringing another dry day. Sunshine will give way
to increasing clouds in the afternoon as combination of low and
mid level moisture overspreads the region. Airmass moderates
ahead of the front with highs ranging from the mid 40s higher
terrain to lower 50s coastal plain.

&&

.LONG TERM /THURSDAY NIGHT THROUGH TUESDAY/...
Highlights...

* Much colder and coldest temperatures so far this season
  expected Friday into the weekend with a winter feel
* Chance for precipitation late Sunday into Monday but low confidence

Overview and model preferences...
Noting continued good agreement between both operational and
ensemble guidance suites through the long term with the 08.00Z
update. Zonal flow remains dominant through the period, but with
influence from the N stream, something that has been lacking
much of the fall. The first push is the coldest thus far, with
origins in the Yukon and NW Territories, where a snowpack has
been established, and will bring about a taste of winter-like
cold Fri into early in the weekend. The acute/depth of this trof
allows modest ridging to follow, but with little influence of
the S stream, temps are likely to remain seasonably cool. This
until a second, weaker, open wave arrives early next week. Given
the agreement mentioned above, will continue with a consensus
blend for the baseline of this long term forecast update.

Details...

Thu night...
Strong cold front, associated with a sharpening (and even
potentially developing cutoff) trof slides quickly through S New
England. Although moisture flux is minimal, a weak spike in
PWATs combined with very strong baroclinicity suggest some
shower precip development. Mix of SHRA mixing with SHSN likely,
with even modest SN accums in the higher terrain and where
dynamic cooling under heavier SN/strong lift. Low moisture
suggests low QPF though so SN accums should generally remain
around a half inch or less especially given sfc temps are still
near or above freezing. Temps in the upper 20s to mid 30s as the
cold air lags the fropa into the morning. Given strong winds
aloft and modest near sfc instability with the cold advection,
will also need to monitor for a few squalls.

Fri and Fri night...
Post frontal airmass is 2-3 std deviations colder than normal
at both H92 and H85. H92 temps drop to -10C to -12C while H85
drop to -14C to -16C. Given the strong cold advection following
the cold FROPA, BL mixing is likely to reach near H85. However,
given the cold at this level, daytime highs are likely to
struggle to break out of the 30s, with a only a few spots in the
low 40s given a W component to the flow. Speaking of the flow,
strong pres rises nearly 5mb/3hr combined with mixing to a
40-45kt LLJ suggest breezy conditions. Therefore, winds could
gust 25-35 mph at times through the day, leading to wind chills
in the upper teens and low 20s. Overnight mins will be dependent
on how quickly the sfc gradient can slacken, but expecting lows
in low teens in the normally colder valleys if interior MA/CT
with 20s elsewhere. This may lead to the end of the growing
season for those final zones that don't end tonight.

Sat and Sun...
Modest ridging follows the shift the trof/cutoff into the
Maritimes. However, as mentioned above, airmass remains cool
given influence of the N stream. H92 temps warm to an average of
-4C on Sat, then -2C by Sun. This still suggests temps cooler
 than seasonal normals, mainly in the upper 30s and 40s on Sat,
 40s to around 50 on Sun. Overnight mins Sat night will still
 be very cold given perfect radiational cooling conditions, with
 teens and 20s once again expected. Open wave approach is
 expected to be delayed and slow given the ridge development,
 and overnight models support this slower timing. Therefore,
 expecting a dry and cool weekend.

Early next week...
Uncertainty, particularly with timing. However an open wave
within a zonal, N stream dominated flow pattern favor a coastal
low pres development. Most guidance supports this, however with
dry high pres to the N, there is uncertainty with QPF gradient
and low lvl thermal profiles. Given it will take some time to
resolve these individual meso-scale features, will continue with
a blend and chance POPs at most. However, this will be a
feature to watch as we approach, unless the high pres (which is
strong at 1025mb) to the N is able to dominate and force the
parent low well to the S.

&&

.AVIATION /09Z WEDNESDAY THROUGH SUNDAY/...
Forecaster Confidence Levels...

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

Short Term /through Thursday/...

Through 12z...Areas of MVFR/IFR cigs with rain/snow ending
NW to SE 06-11z. NE wind gusts 20-25 kt Cape/Islands.

Today...Moderate confidence. Conditions improving to VFR
interior in the morning, but MVFR cigs lingering across SE MA
and especially Cape/Islands into the afternoon. Northerly
gusts to 20-25 kt Cape/Islands diminishing in the afternoon.

Tonight and Thursday...Moderate confidence. Mainly VFR, but
MVFR cigs lingering over portions of Cape/Islands. Low risk for
these lower cigs expanding south of the Pike and south coast
Thu afternoon. Light N winds becoming S/SE Thu afternoon.

KBOS Terminal...High confidence in trends, lower confidence in
timing.

KBDL Terminal...High confidence in trends, lower confidence in
timing.

Outlook /Thursday Night through Sunday/... High confidence.

Thursday Night: Mainly VFR, with areas MVFR possible. Windy
with gusts to 35 kt. Isolated SHRA and SHSN.

Friday: VFR. Strong winds with local gusts to 40 kt.

Friday Night: VFR. Windy with gusts to 30 kt.

Veterans Day: VFR. Breezy.

Saturday Night through Sunday: VFR.

&&

.MARINE...
Forecaster Confidence Levels...

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

Short Term /through Thursday/...High confidence.

N/NE wind gusts to 25-30 kt this morning will diminish this
afternoon through tonight as high pres builds in from the west.
Small craft advisories will continue through tonight as seas
will be slow to subside over the outer waters. Light NE winds
Thu veering to SE in the afternoon.

Outlook /Thursday Night through Sunday/...Moderate Confidence.

Thursday Night: Low risk for Small Craft Advisory winds with
gusts up to 30 kt. Local rough seas. Scattered rain showers.

Friday: Low risk for gale force winds with gusts up to 35 kt.
Rough seas up to 10 ft.

Friday Night: Strong winds with gusts up to 35 kt. Areas of
rough seas.

Veterans Day: Winds less than 25 kt. Local rough seas.

Saturday Night through Sunday:Winds less than 25 kt.

&&

.CLIMATE...
High temperatures Friday Nov 10 may approach record cold max
temps.

Here are the current record coldest max temps:

Boston 		37 (1873)
Providence 	34 (1956)
Hartford 	37 (1914)
Worcester   32 (1956)

&&

.BOX WATCHES/WARNINGS/ADVISORIES...
CT...None.
MA...Freeze Warning from midnight tonight to 8 AM EST Thursday for
     MAZ015-020-021.
     Frost Advisory from midnight tonight to 8 AM EST Thursday for
     MAZ022.
RI...Freeze Warning from midnight tonight to 8 AM EST Thursday for
     RIZ005-006.
     Frost Advisory from midnight tonight to 8 AM EST Thursday for
     RIZ007.
MARINE...Small Craft Advisory until 4 PM EST this afternoon for
     ANZ231>235-237.
     Small Craft Advisory until noon EST today for ANZ236.
     Small Craft Advisory until 6 AM EST Thursday for ANZ250-251-
     254>256.

&&

SYNOPSIS...KJC/Doody
NEAR TERM...KJC
SHORT TERM...KJC
LONG TERM...Doody
AVIATION...KJC/Doody
MARINE...KJC/Doody
CLIMATE...staff
Hazardous weather outlook, Nov 8, 3:34 AM EST, 0 minutes before
Hazardous Weather Outlook
National Weather Service Taunton MA
334 AM EST Wed Nov 8 2017

CTZ002>004-MAZ002>014-016>019-023-024-026-RIZ001>004-008-090845-
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-
Eastern Norfolk MA-Northern Bristol MA-Western Plymouth MA-
Eastern Plymouth MA-Dukes MA-Nantucket MA-Northern Middlesex MA-
Northwest Providence RI-Southeast Providence RI-Western Kent RI-
Eastern Kent RI-Block Island RI-
334 AM EST Wed Nov 8 2017

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

.DAY ONE...Today and Tonight.

No hazardous weather is expected at this time.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

MAZ015-020-021-RIZ005-006-090845-
Suffolk MA-Southern Bristol MA-Southern Plymouth MA-Bristol RI-
Washington RI-
334 AM EST Wed Nov 8 2017

...FREEZE WARNING IN EFFECT FROM MIDNIGHT TONIGHT TO 8 AM EST
THURSDAY...

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

.DAY ONE...Today and Tonight.

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

   Freeze Warning.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

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

   Freeze Warning.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

MAZ022-RIZ007-090845-
Barnstable MA-Newport RI-
334 AM EST Wed Nov 8 2017

...FROST ADVISORY IN EFFECT FROM MIDNIGHT TONIGHT TO 8 AM EST
THURSDAY...

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

.DAY ONE...Today and Tonight.

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

   Frost Advisory.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

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

   Frost Advisory.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

ANZ230>237-250-251-254>256-090845-
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-
334 AM EST Wed Nov 8 2017

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

.DAY ONE...Today and Tonight.

No hazardous weather is expected at this time.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

Gale force winds are likely early Friday into Friday evening across
the waters.

.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

The office that day

Everything else NWS Boston/Norton, MA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Nov 8, 3:34 AM ESTFrost AdvisoryBOXBarnstable, Dukes24 hr
Nov 8, 4:03 AM ESTSmall Craft AdvisoryBOX23 hr
Nov 8, 3:05 PM ESTGale WatchBOX12 hr

Nearby

Freeze Warnings in Massachusetts, 2017Freeze Warnings in Rhode Island, 2017Every freeze warning in 2017

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.