Alert archive / Massachusetts / Severe Thunderstorm Warnings in 2006

Severe Thunderstorm Warning 113, NWS Boston/Norton, MA

August 2, 2006Franklin County, Hampshire County, Massachusetts

NWS Boston/Norton, MA issued this severe thunderstorm warning at Aug 2, 2006, 4:19 PM EDT for Franklin County, Hampshire County, Massachusetts. It was in force for 26 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Aug 2, 2006, 4:19 PM EDT (20:19 UTC)
Expired
Aug 2, 2006, 4:45 PM EDT
In force
26 min
Issued by
NWS Boston/Norton, MA
Area
Counties, with a storm outline in the text

Counties Franklin County, MA, Hampshire County, MA

The radar

The Albany radar (KENX), 125 km from the middle of the area, began a volume at 20:18 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Aug 2, 1:19 PM EDTSevere Thunderstorm WatchSPC8 hr

The nearest sounding before it

Albany, NY (KALY), launched 12:00Z, 8.3 hours before the alert went out and 109 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, Albany, NY at 12:00Z on 2006-08-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1361 joules per kilogram.LCLLFCEL10008507005003002001001 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, Albany, NY at 12:00Z on 2006-08-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 62 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
1361 J/kg
Mixed-layer CIN
-63 J/kg
Mixed-layer LCL
920 m above ground
0-6 km bulk shear
29 kt
0-1 km storm-relative helicity
62 m²/s²
0-3 km storm-relative helicity
76 m²/s²
Significant tornado parameter
0.3
Supercell composite
2.5

Open this sounding in Storm Lab

The text

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

000 
WUUS51 KBOX 022019
SVRBOX
MAC011-015-022045-
/O.NEW.KBOX.SV.W.0113.060802T2019Z-060802T2045Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TAUNTON MA
419 PM EDT WED AUG 2 2006

THE NATIONAL WEATHER SERVICE IN TAUNTON HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHEASTERN FRANKLIN COUNTY IN WESTERN MASSACHUSETTS
  CENTRAL HAMPSHIRE COUNTY IN WESTERN MASSACHUSETTS
  THIS INCLUDES THE CITY OF AMHERST

* UNTIL 445 PM EDT

* AT 418 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS
  OF 60 MPH.  THIS STORM WAS LOCATED NEAR WHATELY...OR ABOUT 7 MILES
  NORTHWEST OF AMHERST...AND MOVING EAST AT 30 MPH.

  THIS STORM HAS A HISTORY OF PRODUCING WIND DAMAGE IN CONWAY AND
  ASHFIELD.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  LEVERETT AND AMHERST BY 430 PM EDT...
  PELHAM AND SHUTESBURY BY 435 PM EDT...

THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH...PREPARE
IMMEDIATELY FOR DAMAGING WINDS...DESTRUCTIVE HAIL...AND DEADLY CLOUD
TO GROUND LIGHTNING. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER...
PREFERABLY INSIDE A STRONG BUILDING BUT AWAY FROM WINDOWS.

LAT...LON 4253 7269 4241 7276 4229 7232 4246 7227

$$

JWD
1 follow-up statement
000 
WWUS51 KBOX 022031
SVSBOX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TAUNTON MA
429 PM EDT WED AUG 2 2006

MAC011-015-022045-
/O.CON.KBOX.SV.W.0113.000000T0000Z-060802T2045Z/
FRANKLIN MA-HAMPSHIRE MA-
429 PM EDT WED AUG 2 2006

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 445 PM EDT
FOR CENTRAL HAMPSHIRE AND SOUTHEASTERN FRANKLIN COUNTIES...

AT 424 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING NICKEL
SIZE HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH.  THESE STORMS 
WERE LOCATED ALONG A LINE EXTENDING FROM LEVERETT TO AMHERST MOVING 
EAST AT 30 MPH

STORMS HAVE PRODUCED WIND DAMAGE AT CONWAY AND ASHFIELD AT 418 PM.
THESE STORMS HAVE GROWN STRONGER AND ARE CAPABLE OF PRODUCING 
WIDESPREAD TREE DAMAGE IN THEIR PATH. 


SEVERE THUNDERSTORMS WILL BE NEAR...
  SHUTESBURY AND PELHAM BY 435 PM EDT

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1000 PM EDT
WEDNESDAY EVENING FOR WESTERN MASSACHUSETTS AND SOUTHERN NEW
HAMPSHIRE.

LAT...LON 4253 7269 4241 7276 4229 7232 4246 7227

$$
DRAG

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 1, 10:04 PM EDTExcessive Heat WatchBOXBristol, Hampden, Norfolk, Plymouth, Worcester7 hr
Aug 2, 5:25 AM EDTHeat AdvisoryBOXBarnstable, Bristol, Dukes, Essex, Franklin, Hampden and 6 more37 hr
Aug 2, 4:38 PM EDTSevere Thunderstorm WarningBOXHampden, Hampshire, Worcester52 min
Aug 2, 5:27 PM EDTSevere Thunderstorm WarningBOXMiddlesex, Norfolk, Worcester63 min
Aug 2, 5:55 PM EDTSpecial Marine WarningBOX65 min
Aug 2, 6:03 PM EDTSevere Thunderstorm WarningBOXBristol, Plymouth57 min
Aug 2, 6:07 PM EDTSpecial Marine WarningBOX113 min
Aug 2, 6:35 PM EDTSpecial Marine WarningBOX85 min
Aug 2, 6:53 PM EDTSevere Thunderstorm WarningBOXBristol, Plymouth37 min
Aug 2, 7:00 PM EDTSevere Thunderstorm WarningBOXBarnstable55 min
Aug 2, 7:05 PM EDTSpecial Marine WarningBOX85 min
Aug 2, 7:24 PM EDTSevere Thunderstorm WarningBOXDukes33 min

Nearby

Severe Thunderstorm Warnings in Massachusetts, 2006Every severe thunderstorm warning in 2006

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.