Alert archive / Massachusetts / Wind Advisories in 2009

Wind Advisory 64, NWS Boston/Norton, MA

October 31, 20097 counties in Massachusetts

NWS Boston/Norton, MA issued this wind advisory at Oct 31, 2009, 3:31 AM EDT for 7 counties in Massachusetts. It took effect at Oct 31, 2009, 1:00 PM EDT. It was in force for 7 hr.

The area

The counties it named.

The facts

Issued
Oct 31, 2009, 3:31 AM EDT (07:31 UTC)
In effect from
Oct 31, 2009, 1:00 PM EDT
Expired
Oct 31, 2009, 8:00 PM EDT
In force
7 hr
Issued by
NWS Boston/Norton, MA

Counties Bristol County, MA, Essex County, MA, Middlesex County, MA, Norfolk County, MA, Plymouth County, MA, Suffolk County, MA, Worcester County, MA

The radar

The Boston radar (KBOX), 33 km from the middle of the area, began a volume at 07:32 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, 7.5 hours before the alert went out and 119 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 2009-10-31Temperature 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 2009-10-31The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 17 square meters per square second.193958Sfc1 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
886 m above ground
0-6 km bulk shear
29 kt
0-1 km storm-relative helicity
17 m²/s²
0-3 km storm-relative helicity
61 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

000 
WWUS71 KBOX 310731
NPWBOX

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE TAUNTON MA
331 AM EDT SAT OCT 31 2009

...A PERIOD OF STRONG WINDS EXPECTED THIS AFTERNOON...

.SOUTH TO SOUTHWEST WINDS OF 20 TO 30 MPH WITH GUSTS TO 40 TO 50 MPH
ARE POSSIBLE OVER EASTERN PORTIONS OF SOUTHERN NEW ENGLAND THIS AFTERNOON...

MAZ004>007-012>019-026-311545-
/O.NEW.KBOX.WI.Y.0064.091031T1700Z-091031T2200Z/
NORTHERN WORCESTER MA-CENTRAL MIDDLESEX MA-WESTERN ESSEX MA-
EASTERN ESSEX MA-SOUTHERN WORCESTER MA-WESTERN NORFOLK MA-
SOUTHEAST MIDDLESEX MA-SUFFOLK MA-EASTERN NORFOLK MA-
NORTHERN BRISTOL MA-WESTERN PLYMOUTH MA-EASTERN PLYMOUTH MA-
NORTHERN MIDDLESEX MA-
INCLUDING THE CITIES OF...BARRE...FITCHBURG...FRAMINGHAM...
LOWELL...LAWRENCE...GLOUCESTER...MILFORD...WORCESTER...FOXBORO...
NORWOOD...CAMBRIDGE...BOSTON...QUINCY...TAUNTON...BROCKTON...
PLYMOUTH...AYER
331 AM EDT SAT OCT 31 2009

...WIND ADVISORY IN EFFECT FROM 1 PM THIS AFTERNOON TO 6 PM EDT
THIS EVENING...

THE NATIONAL WEATHER SERVICE IN TAUNTON HAS ISSUED A WIND
ADVISORY...WHICH IS IN EFFECT FROM 1 PM THIS AFTERNOON TO 6 PM
EDT THIS EVENING. THE ADVISORY AREA EXTENDS FROM WORCESTER COUNTY
EASTWARD TO THE COAST INCLUDING THE NORTH SHORE...BOSTON METRO
AREA...AND SOUTHWARD TO TAUNTON AND PLYMOUTH.

VERY STRONG WINDS WILL BE BLOWING JUST ABOVE THE SURFACE TODAY. 
CLOUD COVER AND A STRONG INVERSION WILL MAKE IT DIFFICULT TO MIX
THESE DOWN TO THE GROUND. HOWEVER...FROM ABOUT 2 PM TO 5 PM THIS
AFTERNOON...JUST ENOUGH HEATING IS EXPECTED TO OCCUR TO HELP
TRANSPORT WIND GUSTS OF MINIMAL WIND ADVISORY THRESHOLDS...
46 MPH...DOWN TO THE SURFACE. THE BEST CHANCES FOR THIS TO OCCUR ARE
FROM WORCESTER TO BOSTON AND THE NORTH AND SOUTH SHORE COMMUNITIES OF
EASTERN MASSACHUSETTS. IF WE GET SOME SUNSHINE...THE WINDS COULD BE
MORE WIDESPREAD.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND ADVISORY IS ISSUED EITHER 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 DISRUPTIONS.

&&

$$
FIELD
3 follow-up statements
000 
WWUS71 KBOX 311613
NPWBOX

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE TAUNTON MA
1213 PM EDT SAT OCT 31 2009

...A PERIOD OF STRONG WINDS EXPECTED THIS AFTERNOON...

.SOUTH TO SOUTHWEST WINDS OF 20 TO 30 MPH WITH GUSTS TO 40 TO
50 MPH ARE POSSIBLE OVER EASTERN PORTIONS OF SOUTHERN NEW ENGLAND
THIS AFTERNOON...

MAZ004>007-012>019-026-312200-
/O.CON.KBOX.WI.Y.0064.091031T1700Z-091031T2200Z/
NORTHERN WORCESTER MA-CENTRAL MIDDLESEX MA-WESTERN ESSEX MA-
EASTERN ESSEX MA-SOUTHERN WORCESTER MA-WESTERN NORFOLK MA-
SOUTHEAST MIDDLESEX MA-SUFFOLK MA-EASTERN NORFOLK MA-
NORTHERN BRISTOL MA-WESTERN PLYMOUTH MA-EASTERN PLYMOUTH MA-
NORTHERN MIDDLESEX MA-
INCLUDING THE CITIES OF...BARRE...FITCHBURG...FRAMINGHAM...
LOWELL...LAWRENCE...GLOUCESTER...MILFORD...WORCESTER...FOXBORO...
NORWOOD...CAMBRIDGE...BOSTON...QUINCY...TAUNTON...BROCKTON...
PLYMOUTH...AYER
1213 PM EDT SAT OCT 31 2009

...WIND ADVISORY REMAINS IN EFFECT UNTIL 6 PM EDT THIS EVENING...

A WIND ADVISORY REMAINS IN EFFECT UNTIL 6 PM EDT THIS EVENING. 

SOME BREAKS IN THE OVERCAST ACROSS THE ADVISORY AREA WILL ALLOW
TEMPERATURES TO RISE CLOSE TO 70 DEGREES. THE WARMER TEMPERATURES AND
BRIEF BREAKS OF SUNSHINE MAY ALLOW STRONG SOUTH TO SOUTHWEST WINDS
TO REACH THE GROUND DURING THIS AFTERNOON...MAINLY FROM ABOUT 2 PM TO
5 PM.

THE BEST CHANCES FOR THIS TO OCCUR ARE FROM WORCESTER TO BOSTON AND
THE NORTH AND SOUTH SHORE COMMUNITIES OF EASTERN MASSACHUSETTS. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND ADVISORY IS ISSUED EITHER 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 DISRUPTIONS.

&&

$$
000 
WWUS71 KBOX 312158
NPWBOX

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE TAUNTON MA
558 PM EDT SAT OCT 31 2009

...STRONG WINDS INTO EARLY EVENING...

.SOUTH TO SOUTHWEST WINDS WILL CONTINUE TO GUST BETWEEN 40 AND 50 MPH
OVER PORTIONS OF CENTRAL AND EASTERN MASSACHUSETTS INTO EARLY EVENING...

MAZ004>007-012>019-026-010000-
/O.EXT.KBOX.WI.Y.0064.000000T0000Z-091101T0000Z/
NORTHERN WORCESTER MA-CENTRAL MIDDLESEX MA-WESTERN ESSEX MA-
EASTERN ESSEX MA-SOUTHERN WORCESTER MA-WESTERN NORFOLK MA-
SOUTHEAST MIDDLESEX MA-SUFFOLK MA-EASTERN NORFOLK MA-
NORTHERN BRISTOL MA-WESTERN PLYMOUTH MA-EASTERN PLYMOUTH MA-
NORTHERN MIDDLESEX MA-
INCLUDING THE CITIES OF...BARRE...FITCHBURG...FRAMINGHAM...
LOWELL...LAWRENCE...GLOUCESTER...MILFORD...WORCESTER...FOXBORO...
NORWOOD...CAMBRIDGE...BOSTON...QUINCY...TAUNTON...BROCKTON...
PLYMOUTH...AYER
558 PM EDT SAT OCT 31 2009

...WIND ADVISORY NOW IN EFFECT UNTIL 8 PM EDT THIS EVENING...

THE WIND ADVISORY IS NOW IN EFFECT UNTIL 8 PM EDT THIS EVENING. 

SOUTH TO SOUTHWEST WINDS WILL CONTINUE TO GUST BETWEEN 40 AND 50 MPH
ACROSS PORTIONS OF CENTRAL AND EASTERN MASSACHUSETTS INTO EARLY THIS
EVENING. AS OF 545 PM...REPORTS OF SCATTERED DOWNED LIMBS AND EVEN
ISOLATED DOWNED TREES WERE STILL BEING RECEIVED. THE WINDS SHOULD
BEGIN TO DIMINISH...HOWEVER...BY 8 PM.

THE BEST CHANCES FOR SCATTERED TREE AND WIRE DAMAGE TO OCCUR WILL
CONTINUE TO BE FROM WORCESTER TO BOSTON AND THE NORTH AND SOUTH SHORE
COMMUNITIES OF EASTERN MASSACHUSETTS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND ADVISORY IS ISSUED EITHER 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 DISRUPTIONS.

&&

$$

THOMPSON
000 
WWUS71 KBOX 010005
NPWBOX

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE TAUNTON MA
805 PM EDT SAT OCT 31 2009

MAZ004>007-012>019-026-010115-
/O.EXP.KBOX.WI.Y.0064.000000T0000Z-091101T0000Z/
NORTHERN WORCESTER MA-CENTRAL MIDDLESEX MA-WESTERN ESSEX MA-
EASTERN ESSEX MA-SOUTHERN WORCESTER MA-WESTERN NORFOLK MA-
SOUTHEAST MIDDLESEX MA-SUFFOLK MA-EASTERN NORFOLK MA-
NORTHERN BRISTOL MA-WESTERN PLYMOUTH MA-EASTERN PLYMOUTH MA-
NORTHERN MIDDLESEX MA-
INCLUDING THE CITIES OF...BARRE...FITCHBURG...FRAMINGHAM...
LOWELL...LAWRENCE...GLOUCESTER...MILFORD...WORCESTER...FOXBORO...
NORWOOD...CAMBRIDGE...BOSTON...QUINCY...TAUNTON...BROCKTON...
PLYMOUTH...AYER
805 PM EDT SAT OCT 31 2009

...WIND ADVISORY HAS EXPIRED...

THE WIND ADVISORY IS NO LONGER IN EFFECT. HOWEVER...WIND GUSTS UP TO
AROUND 40 MPH WILL STILL BE POSSIBLE THIS EVENING INTO THE EARLY
OVERNIGHT HOURS.

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Oct 31, 3:11 AM EDTSmall Craft AdvisoryBOX37 hr

Nearby

Wind Advisories in Massachusetts, 2009Every wind advisory in 2009

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.