Alert archive / Massachusetts / Wind Advisories in 2012

Wind Advisory 16, NWS Boston/Norton, MA

December 27, 2012Essex County, Massachusetts

NWS Boston/Norton, MA issued this wind advisory at Dec 27, 2012, 11:38 AM EST for Essex County, Massachusetts. It took effect at Dec 27, 2012, 3:00 PM EST. It was in force for 6 hr.

The area

The counties it named.

The facts

Issued
Dec 27, 2012, 11:38 AM EST (16:38 UTC)
In effect from
Dec 27, 2012, 3:00 PM EST
Expired
Dec 27, 2012, 9:00 PM EST
In force
6 hr
Issued by
NWS Boston/Norton, MA

County Essex County, MA

The radar

The Boston radar (KBOX), 79 km from the middle of the area, began a volume at 16:42 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 131 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 2012-12-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 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 2012-12-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 831 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
514 m above ground
0-6 km bulk shear
66 kt
0-1 km storm-relative helicity
831 m²/s²
0-3 km storm-relative helicity
1080 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.1

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

080 
WWUS71 KBOX 271638
NPWBOX

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE TAUNTON MA
1138 AM EST THU DEC 27 2012

...HIGH WIND WARNING EXPIRED BUT GUSTY NORTHWEST WINDS LATE THIS
AFTERNOON INTO THIS EVENING...

.THE STRONGEST WINDS HAVE MOVED NORTH OF THE AREA. HOWEVER...NORTHWEST
WINDS WILL GUST TO 35 TO 40 MPH ACROSS MUCH OF EASTERN
MASSACHUSETTS AND RHODE ISLAND LATE THIS AFTERNOON INTO THE
EVENING. A FEW WIND GUSTS BETWEEN 45 AND 50 MPH MAY OCCUR LATE
THIS AFTERNOON AND EARLY EVENING ACROSS CAPE ANN.

MAZ007-280045-
/O.NEW.KBOX.WI.Y.0016.121227T2000Z-121228T0200Z/
EASTERN ESSEX MA-
INCLUDING THE CITY OF...GLOUCESTER
1138 AM EST THU DEC 27 2012

...WIND ADVISORY IN EFFECT FROM 3 PM THIS AFTERNOON TO 9 PM EST
THIS EVENING...

THE NATIONAL WEATHER SERVICE IN TAUNTON HAS ISSUED A WIND
ADVISORY...WHICH IS IN EFFECT FROM 3 PM THIS AFTERNOON TO 9 PM
EST THIS EVENING.

* WINDS...NORTH 25 TO 35 MPH WITH GUSTS BETWEEN 45 AND 50 MPH.

* TIMING...LATE THIS AFTERNOON AND EARLY EVENING...THEN
  DIMINISHING.

* IMPACTS...WINDS OF THIS MAGNITUDE COULD BRING DOWN NUMEROUS
  SMALL TO MEDIUM SIZED BRANCHES. ISOLATED NEW POWER OUTAGES ARE
  POSSIBLE. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND ADVISORY IS ISSUED WHEN SUSTAINED WINDS ARE FORECAST TO BE
31 TO 39 MPH OR GUSTS WILL RANGE BETWEEN 46 AND 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.

&&

$$

THOMPSON
1 follow-up statement
542 
WWUS71 KBOX 272052
NPWBOX

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE TAUNTON MA
352 PM EST THU DEC 27 2012

...GUSTY NORTHWEST WINDS THROUGH THIS EVENING ACROSS NORTHEAST
MASSACHUSETTS...

.NORTH TO NORTHWEST WINDS WILL GUST BETWEEN 45 AND 50 MPH AT
TIMES THROUGH THE EARLY EVENING ACROSS EASTERN ESSEX
COUNTY...INCLUDING CAPE ANN.

MAZ007-280200-
/O.CON.KBOX.WI.Y.0016.000000T0000Z-121228T0200Z/
EASTERN ESSEX MA-
INCLUDING THE CITY OF...GLOUCESTER
352 PM EST THU DEC 27 2012

...WIND ADVISORY REMAINS IN EFFECT UNTIL 9 PM EST THIS EVENING...

* WINDS...NORTH TO NORTHWEST 20 TO 30 MPH WITH GUSTS BETWEEN 45
  AND 50 MPH.

* TIMING...LATE THIS AFTERNOON AND EARLY EVENING...THEN 
  SLOWLY DIMINISHING. 

* IMPACTS...WINDS OF THIS MAGNITUDE COULD BRING DOWN NUMEROUS 
  SMALL TO MEDIUM SIZED BRANCHES. ISOLATED NEW POWER OUTAGES ARE 
  POSSIBLE. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND ADVISORY IS ISSUED WHEN SUSTAINED WINDS ARE FORECAST TO BE
31 TO 39 MPH OR GUSTS WILL RANGE BETWEEN 46 AND 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.

&&

$$

THOMPSON

The office that day

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

IssuedProductOfficeCountiesLasted
Dec 27, 10:04 AM ESTSmall Craft AdvisoryBOX38 hr

Nearby

Wind Advisories in Massachusetts, 2012Every wind advisory in 2012

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.