Alert archive / Massachusetts / Wind Advisories in 2020

Wind Advisory 29, NWS Boston/Norton, MA

December 5, 20205 counties in Massachusetts; 5 counties in Rhode Island

NWS Boston/Norton, MA issued this wind advisory at Dec 5, 2020, 2:52 AM EST for 5 counties in Massachusetts; 5 counties in Rhode Island. It took effect at Dec 5, 2020, 1:00 PM EST. It was in force for 11 hr.

The area

The counties it named.

The facts

Issued
Dec 5, 2020, 2:52 AM EST (07:52 UTC)
In effect from
Dec 5, 2020, 1:00 PM EST
Expired
Dec 5, 2020, 11:58 PM EST
In force
11 hr
Issued by
NWS Boston/Norton, MA

Counties Bristol County, MA, Middlesex County, MA, Norfolk County, MA, Plymouth County, MA, Suffolk County, MA, Bristol County, RI, Kent County, RI, Newport County, RI, Providence County, RI, Washington County, RI

The radar

The Boston radar (KBOX), 14 km from the middle of the area, began a volume at 07:52 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, 7.9 hours before the alert went out and 111 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 2020-12-05Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Chatham, MA at 00:00Z on 2020-12-05The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 129 square meters per square second.1939587897117Sfc1 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
1085 m above ground
0-6 km bulk shear
36 kt
0-1 km storm-relative helicity
129 m²/s²
0-3 km storm-relative helicity
152 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

423 
WWUS71 KBOX 050752
NPWBOX

URGENT - WEATHER MESSAGE
National Weather Service Boston/Norton MA
252 AM EST Sat Dec 5 2020

RIZ008-051600-
/O.EXA.KBOX.HW.W.0009.201205T1800Z-201206T0500Z/
Block Island RI-
Including the city of New Shoreham
252 AM EST Sat Dec 5 2020

...HIGH WIND WARNING IN EFFECT FROM 1 PM THIS AFTERNOON TO
MIDNIGHT EST TONIGHT...

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

* WHERE...Block Island RI County.

* WHEN...From 1 PM this afternoon to midnight EST tonight.

* IMPACTS...Scattered power outages and some downed trees may
  occur from the strong winds. Travel will be difficult, 
  especially for high profile vehicles.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People should avoid being outside in forested areas and around
trees and branches. If possible, remain in the lower levels of
your home during the windstorm, and avoid windows. Use caution if
you must drive.

&&

$$

MAZ007-019-022>024-051600-
/O.CON.KBOX.HW.W.0009.201205T1800Z-201206T0500Z/
Eastern Essex MA-Eastern Plymouth MA-Barnstable MA-Dukes MA-
Nantucket MA-
Including the cities of Gloucester, Plymouth, Chatham, Falmouth, 
Provincetown, Vineyard Haven, and Nantucket
252 AM EST Sat Dec 5 2020

...HIGH WIND WARNING REMAINS IN EFFECT FROM 1 PM THIS AFTERNOON
TO MIDNIGHT EST TONIGHT...

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

* WHERE...Eastern Plymouth MA, Eastern Essex MA, Dukes MA, 
  Nantucket MA and Barnstable MA Counties.

* WHEN...From 1 PM this afternoon to midnight EST tonight.

* IMPACTS...Scattered power outages and some downed trees may
  occur from the strong winds. Travel will be difficult, 
  especially for high profile vehicles.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People should avoid being outside in forested areas and around
trees and branches. If possible, remain in the lower levels of
your home during the windstorm, and avoid windows. Use caution if
you must drive.

&&

$$

MAZ016>018-020-021-RIZ002>007-051600-
/O.NEW.KBOX.WI.Y.0029.201205T1800Z-201206T0500Z/
Eastern Norfolk MA-Northern Bristol MA-Western Plymouth MA-
Southern Bristol MA-Southern Plymouth MA-Southeast Providence RI-
Western Kent RI-Eastern Kent RI-Bristol RI-Washington RI-
Newport RI-
Including the cities of Quincy, Taunton, Brockton, Fall River, 
New Bedford, Mattapoisett, Providence, Coventry, West Greenwich, 
East Greenwich, Warwick, West Warwick, Bristol, Narragansett, 
Westerly, and Newport
252 AM EST Sat Dec 5 2020

...WIND ADVISORY IN EFFECT FROM 1 PM THIS AFTERNOON TO MIDNIGHT
EST TONIGHT...

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

* WHERE...Portions of eastern and southeastern Massachusetts and  
  Rhode Island.

* WHEN...From 1 PM this afternoon to midnight EST tonight.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use extra caution when driving, especially if operating a high
profile vehicle. Secure outdoor objects.

&&

$$

For more information from the National Weather Service visit
https://weather.gov/box
3 follow-up statements
747 
WWUS71 KBOX 051538
NPWBOX

URGENT - WEATHER MESSAGE
National Weather Service Boston/Norton MA
1038 AM EST Sat Dec 5 2020

MAZ007-019-022>024-RIZ008-052130-
/O.CON.KBOX.HW.W.0009.201205T1800Z-201206T0500Z/
Eastern Essex MA-Eastern Plymouth MA-Barnstable MA-Dukes MA-
Nantucket MA-Block Island RI-
Including the cities of Gloucester, Plymouth, Chatham, Falmouth, 
Provincetown, Vineyard Haven, Nantucket, and New Shoreham
1038 AM EST Sat Dec 5 2020

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL MIDNIGHT EST
TONIGHT...

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

* WHERE...In Massachusetts, Eastern Plymouth MA, Eastern Essex 
  MA, Dukes MA, Nantucket MA and Barnstable MA Counties. In 
  Rhode Island, Block Island RI County.

* WHEN...Until midnight EST tonight.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People should avoid being outside in forested areas and around
trees and branches. If possible, remain in the lower levels of
your home during the windstorm, and avoid windows. Use caution if
you must drive.

&&

$$

MAZ016>018-020-021-RIZ002>007-052130-
/O.CON.KBOX.WI.Y.0029.201205T1800Z-201206T0500Z/
Eastern Norfolk MA-Northern Bristol MA-Western Plymouth MA-
Southern Bristol MA-Southern Plymouth MA-Southeast Providence RI-
Western Kent RI-Eastern Kent RI-Bristol RI-Washington RI-
Newport RI-
Including the cities of Quincy, Taunton, Brockton, Fall River, 
New Bedford, Mattapoisett, Providence, Coventry, West Greenwich, 
East Greenwich, Warwick, West Warwick, Bristol, Narragansett, 
Westerly, and Newport
1038 AM EST Sat Dec 5 2020

...WIND ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT EST TONIGHT...

* WHAT...Northwest winds 20 to 25 mph with gusts up to 50 mph 
  expected.

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

* WHEN...Until midnight EST tonight.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use extra caution when driving, especially if operating a high
profile vehicle. Secure outdoor objects.

&&

$$

For more information from the National Weather Service visit
https://weather.gov/box
396 
WWUS71 KBOX 052052
NPWBOX

URGENT - WEATHER MESSAGE
National Weather Service Boston/Norton MA
352 PM EST Sat Dec 5 2020

MAZ007-019-022>024-RIZ008-060500-
/O.CON.KBOX.HW.W.0009.000000T0000Z-201206T0500Z/
Eastern Essex MA-Eastern Plymouth MA-Barnstable MA-Dukes MA-
Nantucket MA-Block Island RI-
Including the cities of Gloucester, Plymouth, Chatham, Falmouth, 
Provincetown, Vineyard Haven, Nantucket, and New Shoreham
352 PM EST Sat Dec 5 2020

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL MIDNIGHT EST
TONIGHT...

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

* WHERE...In Massachusetts, Eastern Plymouth MA, Eastern Essex 
  MA, Dukes MA, Nantucket MA and Barnstable MA Counties. In 
  Rhode Island, Block Island RI County.

* WHEN...Until midnight EST tonight.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People should avoid being outside in forested areas and around
trees and branches. If possible, remain in the lower levels of
your home during the windstorm, and avoid windows. Use caution if
you must drive.

&&

$$

MAZ013>015-060500-
/O.EXA.KBOX.WI.Y.0029.000000T0000Z-201206T0500Z/
Western Norfolk MA-Southeast Middlesex MA-Suffolk MA-
Including the cities of Foxborough, Norwood, Cambridge, 
and Boston
352 PM EST Sat Dec 5 2020

...WIND ADVISORY IN EFFECT UNTIL MIDNIGHT EST TONIGHT...

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

* WHERE...Western Norfolk MA, Southeast Middlesex MA and Suffolk 
  MA Counties.

* WHEN...Until midnight EST tonight.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use extra caution when driving, especially if operating a high
profile vehicle. Secure outdoor objects.

&&

$$

MAZ016>018-020-021-RIZ002>007-060500-
/O.CON.KBOX.WI.Y.0029.000000T0000Z-201206T0500Z/
Eastern Norfolk MA-Northern Bristol MA-Western Plymouth MA-
Southern Bristol MA-Southern Plymouth MA-Southeast Providence RI-
Western Kent RI-Eastern Kent RI-Bristol RI-Washington RI-
Newport RI-
Including the cities of Quincy, Taunton, Brockton, Fall River, 
New Bedford, Mattapoisett, Providence, Coventry, West Greenwich, 
East Greenwich, Warwick, West Warwick, Bristol, Narragansett, 
Westerly, and Newport
352 PM EST Sat Dec 5 2020

...WIND ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT EST TONIGHT...

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

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

* WHEN...Until midnight EST tonight.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use extra caution when driving, especially if operating a high
profile vehicle. Secure outdoor objects.

&&

$$

For more information from the National Weather Service visit
https://weather.gov/box
880 
WWUS71 KBOX 060458
NPWBOX

URGENT - WEATHER MESSAGE
National Weather Service Boston/Norton MA
1158 PM EST Sat Dec 5 2020

MAZ007-019-022>024-RIZ008-061300-
/O.CAN.KBOX.HW.W.0009.000000T0000Z-201206T0500Z/
/O.NEW.KBOX.WI.Y.0030.201206T0458Z-201206T1800Z/
Eastern Essex MA-Eastern Plymouth MA-Barnstable MA-Dukes MA-
Nantucket MA-Block Island RI-
Including the cities of Gloucester, Plymouth, Chatham, Falmouth, 
Provincetown, Vineyard Haven, Nantucket, and New Shoreham
1158 PM EST Sat Dec 5 2020

...WIND ADVISORY IN EFFECT UNTIL 1 PM EST SUNDAY...
...HIGH WIND WARNING IS CANCELLED...

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

* WHERE...In Massachusetts, Eastern Essex MA, Eastern Plymouth 
  MA, Barnstable MA, Dukes MA and Nantucket MA Counties. In 
  Rhode Island, Block Island RI County.

* WHEN...Until 1 PM EST Sunday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use extra caution when driving, especially if operating a high
profile vehicle. Secure outdoor objects.

&&

$$

MAZ013>018-020-021-RIZ002>007-060600-
/O.CAN.KBOX.WI.Y.0029.000000T0000Z-201206T0500Z/
Western Norfolk MA-Southeast Middlesex MA-Suffolk MA-
Eastern Norfolk MA-Northern Bristol MA-Western Plymouth MA-
Southern Bristol MA-Southern Plymouth MA-Southeast Providence RI-
Western Kent RI-Eastern Kent RI-Bristol RI-Washington RI-
Newport RI-
Including the cities of Foxborough, Norwood, Cambridge, Boston, 
Quincy, Taunton, Brockton, Fall River, New Bedford, Mattapoisett,
Providence, Coventry, West Greenwich, East Greenwich, Warwick, 
West Warwick, Bristol, Narragansett, Westerly, and Newport
1158 PM EST Sat Dec 5 2020

...WIND ADVISORY IS CANCELLED...

$$

For more information from the National Weather Service visit
https://weather.gov/box

The office that day

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

IssuedProductOfficeCountiesLasted
Dec 5, 2:48 AM ESTWinter Weather AdvisoryBOXBristol, Franklin, Hampden, Hampshire, Norfolk, Plymouth17 hr

Nearby

Wind Advisories in Massachusetts, 2020Wind Advisories in Rhode Island, 2020Every wind advisory in 2020

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.