Alert archive / Massachusetts / Wind Advisories in 2017

Wind Advisory 31, NWS Boston/Norton, MA

December 25, 2017Barnstable County, Dukes County, Nantucket County, Massachusetts

NWS Boston/Norton, MA issued this wind advisory at Dec 25, 2017, 4:39 PM EST for Barnstable County, Dukes County, Nantucket County, Massachusetts. It was in force for 5 hr.

The area

The counties it named.

The facts

Issued
Dec 25, 2017, 4:39 PM EST (21:39 UTC)
Expired
Dec 25, 2017, 9:31 PM EST
In force
5 hr
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 21:36 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, 9.7 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 2017-12-25Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1 joules per kilogram.LCLEL10008507005003002001001 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 2017-12-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 647 square meters per square second.1939587897117136156175Sfc1 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
1 J/kg
Mixed-layer CIN
0 J/kg
Mixed-layer LCL
422 m above ground
0-6 km bulk shear
128 kt
0-1 km storm-relative helicity
647 m²/s²
0-3 km storm-relative helicity
661 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.1

Open this sounding in Storm Lab

The text

As transmitted.

676 
WWUS71 KBOX 252139
NPWBOX

URGENT - WEATHER MESSAGE
National Weather Service Taunton MA
439 PM EST Mon Dec 25 2017

MAZ022>024-260500-
/O.CAN.KBOX.HW.W.0011.000000T0000Z-171226T0300Z/
/O.NEW.KBOX.WI.Y.0031.171225T2139Z-171226T0500Z/
Barnstable MA-Dukes MA-Nantucket MA-
Including the cities of Chatham, Falmouth, Provincetown, 
Vineyard Haven, and Nantucket
439 PM EST Mon Dec 25 2017

...WIND ADVISORY IN EFFECT UNTIL MIDNIGHT EST TONIGHT...
...HIGH WIND WARNING IS CANCELLED...

The National Weather Service in Taunton has issued a Wind
Advisory, which is in effect until midnight EST tonight. The High
Wind Warning has been cancelled.

* Location...Cape Cod and the Islands.

* Winds...West 15 to 25 mph with gusts up to 40 mph.

* Timing...Through this evening.

* Impacts...The potential exists for trees and power lines to be 
  knocked down, causing power outages and property damage.

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.

&&

$$

MAZ007-RIZ008-252245-
/O.CAN.KBOX.HW.W.0011.000000T0000Z-171226T0300Z/
Eastern Essex MA-Block Island RI-
Including the cities of Gloucester and New Shoreham
439 PM EST Mon Dec 25 2017

...HIGH WIND WARNING IS CANCELLED...

The National Weather Service in Taunton has cancelled the High
Wind Warning.

Winds have diminished and will remain below 30 mph.

$$

CTZ002>004-MAZ002>006-008>018-026-RIZ001>005-252245-
/O.CAN.KBOX.WI.Y.0030.000000T0000Z-171226T0000Z/
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-Suffolk MA-
Eastern Norfolk MA-Northern Bristol MA-Western Plymouth MA-
Northern Middlesex MA-Northwest Providence RI-
Southeast Providence RI-Western Kent RI-Eastern Kent RI-
Bristol RI-
Including the cities of Hartford, Windsor Locks, Union, Vernon, 
Putnam, Willimantic, Charlemont, Greenfield, Orange, Barre, 
Fitchburg, Framingham, Lowell, Lawrence, Chesterfield, Blandford,
Amherst, Northampton, Springfield, Milford, Worcester, 
Foxborough, Norwood, Cambridge, Boston, Quincy, Taunton, 
Brockton, Ayer, Foster, Smithfield, Providence, Coventry, 
West Greenwich, East Greenwich, Warwick, West Warwick, 
and Bristol
439 PM EST Mon Dec 25 2017

...WIND ADVISORY IS CANCELLED...

The National Weather Service in Taunton has cancelled the Wind
Advisory.

Winds have diminished and will remain below 30 mph.

$$

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
1 follow-up statement
072 
WWUS71 KBOX 260231
NPWBOX

URGENT - WEATHER MESSAGE
National Weather Service Taunton MA
931 PM EST Mon Dec 25 2017

MAZ022>024-260345-
/O.CAN.KBOX.WI.Y.0031.000000T0000Z-171226T0500Z/
Barnstable MA-Dukes MA-Nantucket MA-
Including the cities of Chatham, Falmouth, Provincetown, 
Vineyard Haven, and Nantucket
931 PM EST Mon Dec 25 2017

...WIND ADVISORY IS CANCELLED...

The National Weather Service in Taunton has cancelled the Wind
Advisory.

West winds will continue to slowly diminish overnight. Wind gusts
are no longer expected to exceed 35 mph.

$$

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

Nearby

Wind Advisories in Massachusetts, 2017Every wind advisory 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.