Alert archive / Massachusetts / Wind Advisories in 2020

Wind Advisory 33, NWS Boston/Norton, MA

December 25, 2020Barnstable County, Dukes County, Nantucket County, Massachusetts

NWS Boston/Norton, MA issued this wind advisory at Dec 25, 2020, 11:38 AM EST for Barnstable County, Dukes County, Nantucket County, Massachusetts. It was in force for 80 min.

The area

The counties it named.

The facts

Issued
Dec 25, 2020, 11:38 AM EST (16:38 UTC)
Expired
Dec 25, 2020, 12:58 PM EST
In force
80 min
Issued by
NWS Boston/Norton, MA

Counties Barnstable County, MA, Dukes County, MA, Nantucket County, MA

The radar

The Boston radar (KBOX), 88 km from the middle of the area, began a volume at 16:37 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 12:00Z, 4.6 hours before the alert went out and 39 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 12:00Z on 2020-12-25Temperature 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 12:00Z on 2020-12-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 429 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
797 m above ground
0-6 km bulk shear
54 kt
0-1 km storm-relative helicity
429 m²/s²
0-3 km storm-relative helicity
427 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

893 
WWUS71 KBOX 251638
NPWBOX

URGENT - WEATHER MESSAGE
National Weather Service Boston/Norton MA
1138 AM EST Fri Dec 25 2020

MAZ022>024-260000-
/O.CAN.KBOX.HW.W.0011.000000T0000Z-201225T2100Z/
/O.NEW.KBOX.WI.Y.0033.201225T1638Z-201226T0000Z/
Barnstable MA-Dukes MA-Nantucket MA-
Including the cities of Chatham, Falmouth, Provincetown, 
Vineyard Haven, and Nantucket
1138 AM EST Fri Dec 25 2020

...WIND ADVISORY IN EFFECT UNTIL 7 PM EST THIS EVENING...
...HIGH WIND WARNING IS CANCELLED...

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

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

* WHEN...Until 7 PM EST this evening.

* 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.

&&

$$

MAZ007-013>021-RIZ005-007-251745-
/O.CAN.KBOX.HW.W.0011.000000T0000Z-201225T2100Z/
Eastern Essex 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-Bristol RI-Newport RI-
Including the cities of Gloucester, Foxborough, Norwood, 
Cambridge, Boston, Quincy, Taunton, Brockton, Plymouth, 
Fall River, New Bedford, Mattapoisett, Bristol, and Newport
1138 AM EST Fri Dec 25 2020

...HIGH WIND WARNING IS CANCELLED...

Winds have weakened below High Wind criteria.

$$

CTZ004-MAZ005-006-012-RIZ001>004-006-008-251745-
/O.CAN.KBOX.WI.Y.0032.000000T0000Z-201225T2200Z/
Windham CT-Central Middlesex MA-Western Essex MA-
Southern Worcester MA-Northwest Providence RI-
Southeast Providence RI-Western Kent RI-Eastern Kent RI-
Washington RI-Block Island RI-
Including the cities of Putnam, Willimantic, Framingham, Lowell, 
Lawrence, Milford, Worcester, Foster, Smithfield, Providence, 
Coventry, West Greenwich, East Greenwich, Warwick, West Warwick, 
Narragansett, Westerly, and New Shoreham
1138 AM EST Fri Dec 25 2020

...WIND ADVISORY IS CANCELLED...

Winds have weakened below Wind Advisory criteria.

$$

For more information from the National Weather Service visit
https://weather.gov/box
1 follow-up statement
855 
WWUS71 KBOX 251758
NPWBOX

URGENT - WEATHER MESSAGE
National Weather Service Boston/Norton MA
1258 PM EST Fri Dec 25 2020

MAZ022>024-251900-
/O.CAN.KBOX.WI.Y.0033.000000T0000Z-201226T0000Z/
Barnstable MA-Dukes MA-Nantucket MA-
Including the cities of Chatham, Falmouth, Provincetown, 
Vineyard Haven, and Nantucket
1258 PM EST Fri Dec 25 2020

...WIND ADVISORY IS CANCELLED...

Winds have weakened below Advisory criteria.

$$

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 25, 8:19 AM ESTSpecial Weather StatementBOXBarnstable, Bristol, Middlesex, Norfolk, Plymouth, Suffolk56 min
Dec 25, 8:34 AM ESTAreal Flood WarningBOXFranklin, Worcester10 hr
Dec 25, 8:49 AM ESTAreal Flood WarningBOXBristol, Norfolk5 hr
Dec 25, 9:43 AM ESTSpecial Weather StatementBOXBarnstable, Dukes, Plymouth62 min
Dec 25, 10:02 AM ESTGale WarningBOX5 hr
Dec 25, 10:03 AM ESTWind AdvisoryBOXEssex, Middlesex, Worcester95 min
Dec 25, 11:36 AM ESTSmall Craft AdvisoryBOX49 hr
Dec 25, 11:40 AM ESTAreal Flood WarningBOXHampshire5 hr
Dec 25, 12:41 PM ESTRiver Flood WarningBOXHampden, Hampshire24 hr
Dec 25, 12:41 PM ESTRiver Flood WarningBOXFranklin, Hampshire17 hr
Dec 25, 12:41 PM ESTRiver Flood WarningBOXMiddlesex, Worcester24 hr
Dec 25, 12:41 PM ESTRiver Flood WarningBOXHampden47 hr
Dec 25, 12:41 PM ESTRiver Flood WarningBOXWorcester16 hr
Dec 25, 12:58 PM ESTAreal Flood WarningBOXHampden4 hr
Dec 25, 1:37 PM ESTAreal Flood WarningBOXBristol, Norfolk5 hr
Dec 25, 2:26 PM ESTAreal Flood WarningBOXNorfolk, Suffolk4 hr
Dec 25, 2:26 PM ESTAreal Flood WarningBOXMiddlesex4 hr

Nearby

Wind Advisories in Massachusetts, 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.