Wind Advisory 20, NWS Boston/Norton, MA

795 
WWUS71 KBOX 180522
NPWBOX

URGENT - WEATHER MESSAGE
National Weather Service Boston/Norton MA
1222 AM EST Thu Dec 18 2025

MAZ022>024-182100-
/O.UPG.KBOX.HW.A.0004.251219T1200Z-251219T2000Z/
/O.NEW.KBOX.HW.W.0005.251219T1200Z-251219T2000Z/
Barnstable MA-Dukes MA-Nantucket MA-
Including the cities of Chatham, Vineyard Haven, Nantucket,
Falmouth, and Provincetown
1222 AM EST Thu Dec 18 2025

...HIGH WIND WARNING IN EFFECT FROM 7 AM TO 3 PM EST FRIDAY...

* WHAT...South winds 25 to 35 mph with gusts up to 60 mph expected.

* WHERE...Barnstable MA, Dukes MA, and Nantucket MA Counties.

* WHEN...From 7 AM to 3 PM EST Friday.

* IMPACTS...Damaging winds will blow down trees and power lines. 
  Power outages are possible. Travel will be difficult, especially 
  for high profile vehicles.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Remain in the lower levels of your home during the windstorm, and 
avoid windows. Watch for falling debris and tree limbs. Use caution 
if you must drive.

&&

$$

CTZ002>004-MAZ002>021-026-RIZ001>008-182100-
/O.CON.KBOX.WI.Y.0020.251219T0900Z-251220T0600Z/
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-Northern
Middlesex MA-Northwest Providence RI-Southeast Providence RI-
Western Kent RI-Eastern Kent RI-Bristol RI-Washington RI-Newport
RI-Block Island RI-
Including the cities of Boston, New Shoreham, Fitchburg, Milford,
Putnam, Ayer, Barre, Springfield, West Greenwich, Norwood,
Lawrence, Lowell, East Greenwich, West Warwick, Westerly,
Blandford, Newport, Fall River, Foster, Narragansett, Providence,
Coventry, Gloucester, Smithfield, Warwick, Plymouth, Foxborough,
Chesterfield, Orange, Quincy, New Bedford, Greenfield, Taunton,
Windsor Locks, Amherst, Framingham, Brockton, Mattapoisett,
Bristol, Cambridge, Worcester, Union, Northampton, Willimantic,
Charlemont, Hartford, and Vernon
1222 AM EST Thu Dec 18 2025

...WIND ADVISORY REMAINS IN EFFECT FROM 4 AM FRIDAY TO 1 AM EST 
SATURDAY...

* WHAT...South winds 20 to 30 mph with gusts up to 45 to 55 mph in 
  the morning. A few gusts to 60 mph possible across southern Rhode 
  Island and southeast Massachusetts.

* WHERE...Most of southern New England.

* WHEN...From 4 AM Friday to 1 AM EST Saturday.

* IMPACTS...Gusty winds will blow around unsecured objects. Tree 
  limbs could be blown down and some power outages may result.

* ADDITIONAL DETAILS...Winds shift to west during the late afternoon 
  and evening with gusts to 40 to 50 mph possible, especially over 
  the Berkshires and Worcester Hills.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Winds this strong can make driving difficult, especially for high 
profile vehicles. Use extra caution.

&&

$$

Visit us at http://www.weather.gov/box

KC

915 
WWUS71 KBOX 181841
NPWBOX

URGENT - WEATHER MESSAGE
National Weather Service Boston/Norton MA
141 PM EST Thu Dec 18 2025

MAZ007-015-016-019>021-RIZ004>008-191000-
/O.UPG.KBOX.WI.Y.0020.251219T0900Z-251220T0600Z/
/O.EXB.KBOX.HW.W.0005.251219T1100Z-251219T2000Z/
Eastern Essex MA-Suffolk MA-Eastern Norfolk MA-Eastern Plymouth
MA-Southern Bristol MA-Southern Plymouth MA-Eastern Kent RI-
Bristol RI-Washington RI-Newport RI-Block Island RI-
Including the cities of Narragansett, Newport, East Greenwich,
New Shoreham, Mattapoisett, West Warwick, Bristol, Westerly, New
Bedford, Boston, Quincy, Fall River, Plymouth, Warwick, and
Gloucester
141 PM EST Thu Dec 18 2025

...HIGH WIND WARNING IN EFFECT FROM 6 AM TO 3 PM EST FRIDAY...

* WHAT...South winds 20 to 30 mph with gusts up to 60 mph expected.

* WHERE...The eastern and southern coast of Massachusetts and the 
  southern coast of Rhode Island.

* WHEN...From 6 AM to 3 PM EST Friday.

* IMPACTS...Damaging winds will blow down trees and power lines. 
  Power outages are possible. Travel will be difficult, especially 
  for high profile vehicles.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Remain in the lower levels of your home during the windstorm, and 
avoid windows. Watch for falling debris and tree limbs. Use caution 
if you must drive.

&&

$$

MAZ022>024-191000-
/O.EXT.KBOX.HW.W.0005.251219T1100Z-251219T2000Z/
Barnstable MA-Dukes MA-Nantucket MA-
Including the cities of Falmouth, Provincetown, Vineyard Haven,
Nantucket, and Chatham
141 PM EST Thu Dec 18 2025

...HIGH WIND WARNING NOW IN EFFECT FROM 6 AM TO 3 PM EST FRIDAY...

* WHAT...South winds 25 to 35 mph with gusts up to 60 mph expected.

* WHERE...Cape Cod and the Islands.

* WHEN...From 6 AM to 3 PM EST Friday.

* IMPACTS...Damaging winds will blow down trees and power lines. 
  Power outages are possible. Travel will be difficult, especially 
  for high profile vehicles.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Remain in the lower levels of your home during the windstorm, and 
avoid windows. Watch for falling debris and tree limbs. Use caution 
if you must drive.

&&

$$

CTZ002>004-MAZ002>006-008>014-017-018-026-RIZ001>003-191000-
/O.CON.KBOX.WI.Y.0020.251219T0900Z-251220T0600Z/
Hartford CT-Tolland CT-Windham CT-Western Franklin MA-Eastern
Franklin MA-Northern Worcester MA-Central Middlesex MA-Western
Essex MA-Western Hampshire MA-Western Hampden MA-Eastern
Hampshire MA-Eastern Hampden MA-Southern Worcester MA-Western
Norfolk MA-Southeast Middlesex MA-Northern Bristol MA-Western
Plymouth MA-Northern Middlesex MA-Northwest Providence RI-
Southeast Providence RI-Western Kent RI-
Including the cities of Foxborough, Providence, Ayer, Amherst,
Worcester, Barre, Charlemont, Norwood, Vernon, Milford,
Northampton, Windsor Locks, Foster, Coventry, Hartford,
Smithfield, Lowell, Willimantic, Taunton, Fitchburg, Lawrence,
West Greenwich, Brockton, Greenfield, Orange, Union, Putnam,
Framingham, Springfield, Blandford, Chesterfield, and Cambridge
141 PM EST Thu Dec 18 2025

...WIND ADVISORY REMAINS IN EFFECT FROM 4 AM FRIDAY TO 1 AM EST 
SATURDAY...

* WHAT...Southwest winds 15 to 25 mph with gusts up to 55 mph 
  expected.

* WHERE...Portions of northern Connecticut, central, eastern, 
  northeastern, southeastern, and western Massachusetts, and 
  northern Rhode Island.

* WHEN...From 4 AM Friday to 1 AM EST Saturday.

* IMPACTS...Gusty winds will blow around unsecured objects. Tree 
  limbs could be blown down and some power outages may result.

* ADDITIONAL DETAILS...Winds shift to west during the late afternoon 
  and evening with gusts to 40 to 50 mph possible, especially over 
  the Berkshires and Worcester Hills.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Winds this strong can make driving difficult, especially for high 
profile vehicles. Use extra caution.

&&

$$

Visit us at http://www.weather.gov/box

Dooley

992 
WWUS71 KBOX 190534
NPWBOX

URGENT - WEATHER MESSAGE
National Weather Service Boston/Norton MA
1234 AM EST Fri Dec 19 2025

MAZ017-018-RIZ002-192000-
/O.UPG.KBOX.WI.Y.0020.251219T0900Z-251220T0600Z/
/O.EXB.KBOX.HW.W.0005.251219T1300Z-251219T2000Z/
Northern Bristol MA-Western Plymouth MA-Southeast Providence RI-
Including the cities of Brockton, Taunton, and Providence
1234 AM EST Fri Dec 19 2025

...HIGH WIND WARNING IN EFFECT FROM 8 AM THIS MORNING TO 3 PM EST 
THIS AFTERNOON...

* WHAT...South winds 20 to 30 mph with gusts up to 60 mph expected.

* WHERE...Portions of Rhode Island and southeast Massachusetts

* WHEN...From 8 AM this morning to 3 PM EST this afternoon.

* IMPACTS...Damaging winds will blow down trees and power lines. 
  Power outages are possible. Travel will be difficult, especially 
  for high profile vehicles.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Remain in the lower levels of your home during the windstorm, and 
avoid windows. Watch for falling debris and tree limbs. Use caution 
if you must drive.

&&

$$

MAZ007-015-016-019>024-RIZ004>008-192000-
/O.EXT.KBOX.HW.W.0005.251219T1300Z-251219T2000Z/
Eastern Essex MA-Suffolk MA-Eastern Norfolk MA-Eastern Plymouth
MA-Southern Bristol MA-Southern Plymouth MA-Barnstable MA-Dukes
MA-Nantucket MA-Eastern Kent RI-Bristol RI-Washington RI-Newport
RI-Block Island RI-
Including the cities of East Greenwich, Fall River, Westerly,
Provincetown, Quincy, Gloucester, Warwick, New Shoreham,
Plymouth, Mattapoisett, Chatham, Newport, Narragansett, Vineyard
Haven, Nantucket, Boston, Bristol, West Warwick, Falmouth, and
New Bedford
1234 AM EST Fri Dec 19 2025

...HIGH WIND WARNING NOW IN EFFECT FROM 8 AM THIS MORNING TO 3 PM 
EST THIS AFTERNOON...

* WHAT...South winds 25 to 35 mph with gusts up to 60 mph expected.

* WHERE...The eastern and southern coast of Massachusetts and the 
  southern coast of Rhode Island.

* WHEN...From 8 AM this morning to 3 PM EST this afternoon.

* IMPACTS...Damaging winds will blow down trees and power lines. 
  Power outages are possible. Travel will be difficult, especially 
  for high profile vehicles.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Remain in the lower levels of your home during the windstorm, and 
avoid windows. Watch for falling debris and tree limbs. Use caution 
if you must drive.

&&

$$

CTZ002>004-MAZ002>006-008>014-026-RIZ001-003-192100-
/O.EXT.KBOX.WI.Y.0020.251219T1300Z-251221T0600Z/
Hartford CT-Tolland CT-Windham CT-Western Franklin MA-Eastern
Franklin MA-Northern Worcester MA-Central Middlesex MA-Western
Essex MA-Western Hampshire MA-Western Hampden MA-Eastern
Hampshire MA-Eastern Hampden MA-Southern Worcester MA-Western
Norfolk MA-Southeast Middlesex MA-Northern Middlesex MA-Northwest
Providence RI-Western Kent RI-
Including the cities of Norwood, Ayer, Putnam, Framingham,
Blandford, Foxborough, Smithfield, Fitchburg, Worcester,
Charlemont, Amherst, Windsor Locks, Hartford, West Greenwich,
Northampton, Chesterfield, Coventry, Foster, Cambridge, Lawrence,
Willimantic, Union, Greenfield, Lowell, Milford, Barre,
Springfield, Orange, and Vernon
1234 AM EST Fri Dec 19 2025

...WIND ADVISORY NOW IN EFFECT FROM 8 AM THIS MORNING TO 1 AM EST 
SUNDAY...

* WHAT...South winds 15 to 25 mph with gusts up to 50 mph expected. 
  Wind shifting to west 15 to 25 mph with gusts to 50 mph tonight.

* WHERE...Northern Connecticut, interior Massachusetts and portions 
  of northern and western Rhode Island.

* WHEN...From 8 AM this morning to 1 AM EST Sunday.

* IMPACTS...Gusty winds will blow around unsecured objects. Tree 
  limbs could be blown down and some power outages may result.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Winds this strong can make driving difficult, especially for high 
profile vehicles. Use extra caution.

&&

$$

Visit us at http://www.weather.gov/box

546 
WWUS71 KBOX 190553
NPWBOX

URGENT - WEATHER MESSAGE
National Weather Service Boston/Norton MA
1253 AM EST Fri Dec 19 2025

MAZ007-015-016-019>024-RIZ004>008-192000-
/O.CON.KBOX.HW.W.0005.251219T1300Z-251219T2000Z/
Eastern Essex MA-Suffolk MA-Eastern Norfolk MA-Eastern Plymouth
MA-Southern Bristol MA-Southern Plymouth MA-Barnstable MA-Dukes
MA-Nantucket MA-Eastern Kent RI-Bristol RI-Washington RI-Newport
RI-Block Island RI-
Including the cities of Chatham, Nantucket, Warwick, West
Warwick, Newport, Mattapoisett, Quincy, Provincetown, New
Shoreham, Bristol, Plymouth, Narragansett, Gloucester, Fall
River, Vineyard Haven, East Greenwich, Westerly, New Bedford,
Falmouth, and Boston
1253 AM EST Fri Dec 19 2025

...HIGH WIND WARNING REMAINS IN EFFECT FROM 8 AM THIS MORNING TO 3 
PM EST THIS AFTERNOON...

* WHAT...South winds 25 to 35 mph with gusts up to 60 mph expected.

* WHERE...Portions of eastern, northeastern, and southeastern 
  Massachusetts and northern and southern Rhode Island.

* WHEN...From 8 AM this morning to 3 PM EST this afternoon.

* IMPACTS...Damaging winds will blow down trees and power lines. 
  Power outages are possible. Travel will be difficult, especially 
  for high profile vehicles.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Remain in the lower levels of your home during the windstorm, and 
avoid windows. Watch for falling debris and tree limbs. Use caution 
if you must drive.

&&

$$

MAZ017-018-RIZ002-192000-
/O.CON.KBOX.HW.W.0005.251219T1300Z-251219T2000Z/
Northern Bristol MA-Western Plymouth MA-Southeast Providence RI-
Including the cities of Brockton, Providence, and Taunton
1253 AM EST Fri Dec 19 2025

...HIGH WIND WARNING REMAINS IN EFFECT FROM 8 AM THIS MORNING TO 3 
PM EST THIS AFTERNOON...

* WHAT...South winds 20 to 25 mph with gusts up to 60 mph expected.

* WHERE...In Massachusetts, Northern Bristol MA and Western Plymouth 
  MA Counties. In Rhode Island, Southeast Providence RI County.

* WHEN...From 8 AM this morning to 3 PM EST this afternoon.

* IMPACTS...Damaging winds will blow down trees and power lines. 
  Power outages are possible. Travel will be difficult, especially 
  for high profile vehicles.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Remain in the lower levels of your home during the windstorm, and 
avoid windows. Watch for falling debris and tree limbs. Use caution 
if you must drive.

&&

$$

CTZ002>004-MAZ002>006-008>014-026-RIZ001-003-192100-
/O.EXT.KBOX.WI.Y.0020.251219T1300Z-251220T0600Z/
Hartford CT-Tolland CT-Windham CT-Western Franklin MA-Eastern
Franklin MA-Northern Worcester MA-Central Middlesex MA-Western
Essex MA-Western Hampshire MA-Western Hampden MA-Eastern
Hampshire MA-Eastern Hampden MA-Southern Worcester MA-Western
Norfolk MA-Southeast Middlesex MA-Northern Middlesex MA-Northwest
Providence RI-Western Kent RI-
Including the cities of Smithfield, Willimantic, Milford,
Framingham, Northampton, Amherst, West Greenwich, Norwood,
Orange, Vernon, Union, Lowell, Springfield, Windsor Locks,
Fitchburg, Coventry, Charlemont, Hartford, Lawrence, Putnam,
Blandford, Foster, Foxborough, Greenfield, Worcester, Ayer,
Barre, Cambridge, and Chesterfield
1253 AM EST Fri Dec 19 2025

...WIND ADVISORY NOW IN EFFECT FROM 8 AM THIS MORNING TO 1 AM EST 
SATURDAY...

* WHAT...Southwest winds 15 to 25 mph with gusts up to 50 mph 
  expected.

* WHERE...Portions of northern Connecticut, central, eastern, 
  northeastern, and western Massachusetts, and northern Rhode Island.

* WHEN...From 8 AM this morning to 1 AM EST Saturday.

* IMPACTS...Gusty winds will blow around unsecured objects. Tree 
  limbs could be blown down and some power outages may result.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Winds this strong can make driving difficult, especially for high 
profile vehicles. Use extra caution.

&&

$$

Visit us at http://www.weather.gov/box

052 
WWUS71 KBOX 191606
NPWBOX

URGENT - WEATHER MESSAGE
National Weather Service Boston/Norton MA
1106 AM EST Fri Dec 19 2025

MAZ007-015-016-019>024-RIZ004>008-192000-
/O.CON.KBOX.HW.W.0005.000000T0000Z-251219T2000Z/
Eastern Essex MA-Suffolk MA-Eastern Norfolk MA-Eastern Plymouth
MA-Southern Bristol MA-Southern Plymouth MA-Barnstable MA-Dukes
MA-Nantucket MA-Eastern Kent RI-Bristol RI-Washington RI-Newport
RI-Block Island RI-
Including the cities of Newport, Fall River, Boston,
Provincetown, Mattapoisett, New Bedford, Nantucket, Falmouth, New
Shoreham, Narragansett, Plymouth, East Greenwich, West Warwick,
Gloucester, Bristol, Quincy, Warwick, Chatham, Westerly, and
Vineyard Haven
1106 AM EST Fri Dec 19 2025

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 3 PM EST THIS 
AFTERNOON...

* WHAT...South winds 25 to 35 mph with gusts up to 60 mph.

* WHERE...Portions of eastern, northeastern, and southeastern 
  Massachusetts and northern and southern Rhode Island.

* WHEN...Until 3 PM EST this afternoon.

* IMPACTS...Damaging winds will blow down trees and power lines. 
  Power outages are possible. Travel will be difficult, especially 
  for high profile vehicles.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Remain in the lower levels of your home during the windstorm, and 
avoid windows. Watch for falling debris and tree limbs. Use caution 
if you must drive.

&&

$$

MAZ017-018-RIZ002-192000-
/O.CON.KBOX.HW.W.0005.000000T0000Z-251219T2000Z/
Northern Bristol MA-Western Plymouth MA-Southeast Providence RI-
Including the cities of Providence, Brockton, and Taunton
1106 AM EST Fri Dec 19 2025

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 3 PM EST THIS 
AFTERNOON...

* WHAT...South winds 20 to 30 mph with gusts up to 60 mph.

* WHERE...In Massachusetts, Northern Bristol MA and Western Plymouth 
  MA Counties. In Rhode Island, Southeast Providence RI County.

* WHEN...Until 3 PM EST this afternoon.

* IMPACTS...Damaging winds will blow down trees and power lines. 
  Power outages are possible. Travel will be difficult, especially 
  for high profile vehicles.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Remain in the lower levels of your home during the windstorm, and 
avoid windows. Watch for falling debris and tree limbs. Use caution 
if you must drive.

&&

$$

CTZ002>004-MAZ002>006-008>014-026-RIZ001-003-200515-
/O.CON.KBOX.WI.Y.0020.000000T0000Z-251220T0600Z/
Hartford CT-Tolland CT-Windham CT-Western Franklin MA-Eastern
Franklin MA-Northern Worcester MA-Central Middlesex MA-Western
Essex MA-Western Hampshire MA-Western Hampden MA-Eastern
Hampshire MA-Eastern Hampden MA-Southern Worcester MA-Western
Norfolk MA-Southeast Middlesex MA-Northern Middlesex MA-Northwest
Providence RI-Western Kent RI-
Including the cities of Norwood, Windsor Locks, West Greenwich,
Fitchburg, Milford, Putnam, Chesterfield, Smithfield, Union,
Lawrence, Barre, Northampton, Orange, Foxborough, Blandford,
Charlemont, Vernon, Greenfield, Ayer, Hartford, Framingham,
Lowell, Willimantic, Coventry, Foster, Springfield, Amherst,
Worcester, and Cambridge
1106 AM EST Fri Dec 19 2025

...WIND ADVISORY REMAINS IN EFFECT UNTIL 1 AM EST SATURDAY...

* WHAT...West winds 15 to 25 mph with gusts up to 50 mph.

* WHERE...Portions of northern Connecticut, central, eastern, 
  northeastern, and western Massachusetts, and northern Rhode Island.

* WHEN...Until 1 AM EST Saturday.

* IMPACTS...Gusty winds will blow around unsecured objects. Tree 
  limbs could be blown down and some power outages may result.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Winds this strong can make driving difficult, especially for high 
profile vehicles. Use extra caution.

&&

$$

Visit us at http://www.weather.gov/box

Dooley

879 
WWUS71 KBOX 191934
NPWBOX

URGENT - WEATHER MESSAGE
National Weather Service Boston/Norton MA
234 PM EST Fri Dec 19 2025

MAZ007-015>024-RIZ002-004>008-201000-
/O.EXP.KBOX.HW.W.0005.000000T0000Z-251219T2000Z/
/O.EXB.KBOX.WI.Y.0020.251219T2000Z-251220T1200Z/
Eastern Essex 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-
Southeast Providence RI-Eastern Kent RI-Bristol RI-Washington RI-
Newport RI-Block Island RI-
Including the cities of Newport, Fall River, Boston,
Provincetown, Mattapoisett, New Bedford, Nantucket, Falmouth,
Brockton, New Shoreham, Narragansett, Plymouth, East Greenwich,
West Warwick, Gloucester, Taunton, Bristol, Quincy, Warwick,
Chatham, Westerly, Providence, and Vineyard Haven
234 PM EST Fri Dec 19 2025

...WIND ADVISORY IN EFFECT UNTIL 7 AM EST SATURDAY...
...HIGH WIND WARNING WILL EXPIRE AT 3 PM EST THIS AFTERNOON...

* WHAT...West winds 20 to 30 mph with gusts up to 50 mph expected.

* WHERE...Portions of eastern, northeastern, and southeastern 
  Massachusetts and northern and southern Rhode Island.

* WHEN...Until 7 AM EST Saturday.

* IMPACTS...Gusty winds will blow around unsecured objects. Tree 
  limbs could be blown down and some power outages may result.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Winds this strong can make driving difficult, especially for high 
profile vehicles. Use extra caution.

&&

$$

CTZ002>004-MAZ002>006-008>014-026-RIZ001-003-201000-
/O.EXT.KBOX.WI.Y.0020.000000T0000Z-251220T1200Z/
Hartford CT-Tolland CT-Windham CT-Western Franklin MA-Eastern
Franklin MA-Northern Worcester MA-Central Middlesex MA-Western
Essex MA-Western Hampshire MA-Western Hampden MA-Eastern
Hampshire MA-Eastern Hampden MA-Southern Worcester MA-Western
Norfolk MA-Southeast Middlesex MA-Northern Middlesex MA-Northwest
Providence RI-Western Kent RI-
Including the cities of Norwood, Windsor Locks, West Greenwich,
Fitchburg, Milford, Putnam, Chesterfield, Smithfield, Union,
Lawrence, Barre, Northampton, Orange, Foxborough, Blandford,
Charlemont, Vernon, Greenfield, Ayer, Hartford, Framingham,
Lowell, Willimantic, Coventry, Foster, Springfield, Amherst,
Worcester, and Cambridge
234 PM EST Fri Dec 19 2025

...WIND ADVISORY NOW IN EFFECT UNTIL 7 AM EST SATURDAY...

* WHAT...West winds 15 to 25 mph with gusts up to 50 mph.

* WHERE...Portions of northern Connecticut, central, eastern, 
  northeastern, and western Massachusetts, and northern Rhode Island.

* WHEN...Until 7 AM EST Saturday.

* IMPACTS...Gusty winds will blow around unsecured objects. Tree 
  limbs could be blown down and some power outages may result.

* ADDITIONAL DETAILS...Infrequent gusts up to 60 mph are possible 
  across the high terrain of the Berkshires and the northern 
  Worcester Hills.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Winds this strong can make driving difficult, especially for high 
profile vehicles. Use extra caution.

&&

$$

Visit us at http://www.weather.gov/box

Dooley

694 
WWUS71 KBOX 201021
NPWBOX

URGENT - WEATHER MESSAGE
National Weather Service Boston/Norton MA
521 AM EST Sat Dec 20 2025

CTZ002>004-MAZ002>024-026-RIZ001>008-201130-
/O.CAN.KBOX.WI.Y.0020.000000T0000Z-251220T1200Z/
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-Northwest
Providence RI-Southeast Providence RI-Western Kent RI-Eastern
Kent RI-Bristol RI-Washington RI-Newport RI-Block Island RI-
Including the cities of Vernon, Ayer, Falmouth, Vineyard Haven,
Norwood, Mattapoisett, Providence, Smithfield, Union, Putnam,
Springfield, Blandford, Chatham, Worcester, Foxborough, Taunton,
Charlemont, Hartford, Provincetown, Quincy, Amherst, Greenfield,
Fitchburg, Lowell, Plymouth, Narragansett, Boston, Bristol,
Chesterfield, New Bedford, Fall River, Newport, New Shoreham,
Brockton, Warwick, Barre, West Greenwich, Westerly, Coventry,
Willimantic, Lawrence, Framingham, Milford, Orange, Cambridge,
Foster, Gloucester, East Greenwich, Northampton, Windsor Locks,
Nantucket, and West Warwick
521 AM EST Sat Dec 20 2025

...WIND ADVISORY IS CANCELLED...

Winds have diminished below Wind Advisory criteria so the advisory 
has been cancelled.

$$

Visit us at http://www.weather.gov/box

Area Forecast Discussion
National Weather Service Boston/Norton MA
1209 PM EST Wed Dec 17 2025

.WHAT HAS CHANGED...
High wind watch issued for Cape Cod and the Islands for Friday. The
risk for minor coastal flooding for the south coast during the
Friday morning high tide has diminished somewhat.

&&

.KEY MESSAGES...

- Dry weather with mild temperatures continue through Thursday.
  Gusty winds 25-35 mph arrive this morning and linger through
  the evening.

- Widespread rain with strong to possibly damaging winds late
  Thursday night into Friday.

- The risk for minor coastal flooding for south-facing shores
  during the Friday morning high tide has diminished.

&&

.DISCUSSION...
KEY MESSAGE 1...Dry and milder through Thursday. Gusty winds
today.

SW-ly LLJ has already starting to build in, and surface winds are
beginning to respond... especially over the Cape/Islands and waters.
Will start to see those gusty winds 25-35 mph by mid-morning as
well. Will be a rather chilly start to the day with wind chills in
the teens to low 20s by daybreak. However, warmer temperatures will
begin to make their appearance today with afternoon highs in the low
to mid 40s. Expect to see winds drop off overnight tonight into
Thursday morning, with even warmer temperatures in the mid 40s to
low 50s.

KEY MESSAGE 2...Locally heavy rainfall and strong to possibly
damaging winds

Deep trough moves across the Gt Lakes and towards New England
Thursday night into Friday. Ahead of the trough an anomalous low
level jet 3-4SD above normal develops which advects PWATs 1-1.25"
northward into SNE. This is a strong signal for locally heavy
rainfall as a period of strong low level convergence acts on
anomalous moisture. However, what will likely prevent an excessive
rainfall event is it's a fast moving system with bulk of heavy rain
likely limited to about a 6 hr period late Thu night into Fri from
west to east. Also, while a few t-storms can't be ruled out
instability appears to be meager which should keep rainfall rates in
check. Overall, looking at widespread rainfall 0.50-1 inch with
locally 1-2 inches possible where more persistent downpours, which
is consistent with the 90th percentile of the global ensemble
guidance. The heavy rain may impact the morning commute Friday,
especially across CT valley as timing of low level jet appears to
favor western New Eng. Minor urban and poor drainage street flooding
is possible but not expecting significant impacts. The heavier rain
is expected to impact eastern New Eng later in the morning into
early afternoon. The cold front moves through during the afternoon
followed by strong drying so rain will taper off after the wind
shift, but scattered showers should develop in the afternoon/evening
as robust upper trough approaches from the west.

Regarding strong wind potential, core of the southerly low level jet
70-80 kt develops across SE New Eng Fri morning, potentially peaking
around 85 kt as it reaches the outer Cape/Islands by early afternoon
before moving offshore. The challenge with these southerly low level
jet events is always determining how much wind will mix down to the
surface. An examination of the forecast soundings reveal a neutral
temp profile for areas away from the immediate coast, while a fairly
strong inversion is present over the Cape/Islands. It looks like we
would need temps to reach 58-59 degrees to efficiently mix the
strongest winds to the surface, and it will be close as current
forecast has temps mid-upper 50s away from immediate south coast as
the low level jet is moving through. One factor which could help
enhance strong gusts is the strong pressure falls which develop
across eastern MA and adjacent waters. Using a conservative 50-60
percent of the low level jet would yield gusts to 45-55 mph,
strongest across SE MA, mostly during the morning into early
afternoon on the Cape/Islands. If the milder temps are realized,
gusts could reach 60+. This will have to be monitored closely, but
we decided to issue a high wind watch for Cape/Islands where 925 mb
winds peak around 85 kt with 850 mb winds exceeding 90 kt. Wind
advisories will likely eventually be needed for at least RI and
eastern MA.

Strong cold advection in the post-frontal environment will
yield strong west wind gusts Fri night. Soundings are well mixed
boundary layer with potential for 40-50 mph gusts across all
SNE.

KEY MESSAGE 3...Diminishing risk for minor coastal flooding

Latest guidance suggests the timing of the low level jet and highest
surge will occur a few hours after high tide Fri morning which would
likely preclude minor coastal flood impacts along the south coast.
The greatest risk would be for Narragansett Bay and Buzzards Bay,
but it would take a storm surge of 2.5 to 3 ft during high tide to
produce minor flooding. Latest guidance from the Stevens Institute
indicated a 2-2.5 ft surge for Providence but occurring after
high tide. The 95th percentile which represents a 5 percent
exceedance probability has Providence slightly exceeding the 7
ft flood stage but this is a very low probability at this time.
It would take more favorable timing of the strongest winds at
high tide and a worst case wind forecast to realize this
potential, which would yield just minor flooding impacts along
Narragansett and Buzzards Bay.

&&

.AVIATION /18Z WEDNESDAY THROUGH MONDAY/...
Forecaster Confidence Levels...

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

18Z TAF Update: High confidence.

Tonight and Tomorrow ...High Confidence

VFR. SW wind gusts from 20 to 30 knots continue through late
this afternoon. Winds shift to W this evening becoming light
overnight, then S around 10 kt Thu afternoon.

Tomorrow Night...High Confidence in trends

MVFR/IFR ceilings overspread the region from west to east
tomorrow night with RA. Winds increase out of the south
with sustained speeds of 15 to 20 knots with gusts approaching
25 to 35 knots by Friday morning.

KBOS Terminal...High confidence in TAF.

KBDL Terminal...High confidence in TAF.

Outlook /Thursday Night through Sunday/...

Thursday Night: MVFR/IFR conditions possible. Strong winds with
local gusts up to 40 kt. Chance RA.

Friday: Mainly MVFR, with local IFR possible. Strong winds with
gusts up to 45 kt. RA.

Friday Night: VFR. Strong winds with gusts up to 45 kt.

Saturday: VFR. Windy with local gusts up to 30 kt.

Saturday Night: VFR. Windy with areas of gusts up to 30 kt.
Slight chance RA, slight chance SN.

Sunday: VFR. Windy with local gusts up to 30 kt. Slight chance
RA.

&&

.MARINE...
Forecaster Confidence Levels...

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

Today Through Thursday...High confidence.

Gale force wind gusts likely through Wednesday evening as a
southwesterly low level jet settles overhead. Seas increase to
8-10 feet in the southern waters, and 6-8 feet in the eastern
waters today. Winds decrease and seas subside briefly during the
day Thursday before ramping back up Thursday night.

Outlook /Thursday Night through Sunday/...

Thursday Night: Low risk for gale force winds with gusts up to
40 kt. Areas of rough seas. Chance of rain.

Friday: gale force winds with gusts up to 45 kt. Rough seas up
to 14 ft. Rain.

Friday Night: gale force winds with areas of gusts up to 45 kt.
Rough seas up to 14 ft. Chance of rain.

Saturday: Low risk for Small Craft Advisory winds with gusts up
to 30 kt. Rough seas up to 11 ft.

Saturday Night: Low risk for gale force winds with gusts up to
35 kt. Seas up to 5 ft. Slight chance of rain.

Sunday: Strong winds with gusts up to 35 kt. Areas of rough
seas. Slight chance of rain.

&&

.BOX WATCHES/WARNINGS/ADVISORIES...
CT...None.
MA...High Wind Watch from Friday morning through Friday afternoon
     for MAZ022>024.
RI...None.
MARINE...Gale Warning until 7 PM EST this evening for ANZ230>237-251.
     Gale Warning until 1 AM EST Thursday for ANZ250-254>256.

&&

DISCUSSION...KJC/McMinn
AVIATION...McMinn/RM
MARINE...McMinn