Alert archive / Massachusetts / Severe Thunderstorm Warnings in 2016

Severe Thunderstorm Warning 102, NWS Boston/Norton, MA

August 13, 2016Franklin County, Hampden County, Hampshire County, Massachusetts; Capitol Planning Region, Connecticut

NWS Boston/Norton, MA issued this severe thunderstorm warning at Aug 13, 2016, 9:09 PM EDT for Franklin County, Hampden County, Hampshire County, Massachusetts; Capitol Planning Region, Connecticut. It was in force for 44 min. 2 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued
Aug 13, 2016, 9:09 PM EDT (01:09 UTC)
Expired
Aug 13, 2016, 9:53 PM EDT
In force
44 min
Issued by
NWS Boston/Norton, MA
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

Counties Capitol Planning Region, CT, Franklin County, MA, Hampden County, MA, Hampshire County, MA

The radar

The Boston radar (KBOX), 121 km from the middle of the area, began a volume at 01:09 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.

What was reported inside it

TimeReportWhereRemark
Aug 13, 9:45 PM EDTTSTM WND DMGShutesbury, MATREES AND WIRES DOWN ON ROUTE 202
Aug 13, 9:50 PM EDTTSTM WND DMGMontague, MATREE DOWN ON SUTH AND FEDERAL STREET

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Albany, NY (KALY), launched 00:00Z, 1.2 hours before the alert went out and 117 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 00:00Z on 2016-08-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2222 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 00:00Z on 2016-08-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 112 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
2222 J/kg
Mixed-layer CIN
-33 J/kg
Mixed-layer LCL
1393 m above ground
0-6 km bulk shear
36 kt
0-1 km storm-relative helicity
112 m²/s²
0-3 km storm-relative helicity
175 m²/s²
Significant tornado parameter
0.0
Supercell composite
9.0

Open this sounding in Storm Lab

The text

As transmitted.

349 
WUUS51 KBOX 140109
SVRBOX
CTC003-MAC011-013-015-140215-
/O.NEW.KBOX.SV.W.0102.160814T0109Z-160814T0215Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TAUNTON MA
909 PM EDT SAT AUG 13 2016

THE NATIONAL WEATHER SERVICE IN TAUNTON HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHERN HARTFORD COUNTY IN NORTHERN CONNECTICUT...
  SOUTHEASTERN HAMPSHIRE COUNTY IN WESTERN MASSACHUSETTS...
  WESTERN HAMPDEN COUNTY IN WESTERN MASSACHUSETTS...
  FRANKLIN COUNTY IN WESTERN MASSACHUSETTS...

* UNTIL 1015 PM EDT

* AT 908 PM EDT...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
  EXTENDING FROM NEAR READSBORO TO NEAR PITTSFIELD TO NEAR
  SANDISFIELD TO SHARON...MOVING EAST AT 45 MPH.

  HAZARD...60 MPH WIND GUSTS. 

  SOURCE...RADAR INDICATED. 

  IMPACT...EXPECT DAMAGE TO ROOFS...SIDING...AND TREES. 

* LOCATIONS IMPACTED INCLUDE...
  SPRINGFIELD...CHICOPEE...ENFIELD...WESTFIELD...HOLYOKE...AMHERST...
  WINDSOR...NORTHAMPTON...AGAWAM...WEST SPRINGFIELD...
  SOUTH WINDSOR...GREENFIELD...ORANGE...DEERFIELD...SIMSBURY...
  LUDLOW...BLOOMFIELD...AVON...SOUTH HADLEY AND EASTHAMPTON.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS IS A DANGEROUS SITUATION. THESE STORMS ARE PRODUCING WIDESPREAD
WIND DAMAGE ACROSS BERKSHIRE COUNTY WITH NUMEROUS TREES DOWN AND
WIND GUSTS OF 50 MPH REPORTED. SEEK SHELTER NOW INSIDE A STURDY
STRUCTURE AND STAY AWAY FROM WINDOWS! 

LARGE HAIL AND DAMAGING WINDS AND CONTINUOUS CLOUD TO GROUND
LIGHTNING IS OCCURRING WITH THESE STORMS. MOVE INDOORS IMMEDIATELY.
LIGHTNING IS ONE OF NATURE'S LEADING KILLERS. REMEMBER...IF YOU CAN
HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE STRUCK BY LIGHTNING.

&&

LAT...LON 4197 7289 4198 7290 4273 7268 4272 7228
      4267 7227 4264 7222 4258 7228 4204 7246
      4203 7251 4195 7249 4194 7251 4184 7252
      4180 7295
TIME...MOT...LOC 0108Z 262DEG 39KT 4276 7287 4250 7322 4211 7322 4188
7351

HAIL...<.75IN
WIND...60MPH
 
$$

SIPPRELL
2 follow-up statements
309 
WWUS51 KBOX 140143
SVSBOX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TAUNTON MA
943 PM EDT SAT AUG 13 2016

CTC003-MAC011-013-015-140215-
/O.CON.KBOX.SV.W.0102.000000T0000Z-160814T0215Z/
HARTFORD CT-HAMPSHIRE MA-HAMPDEN MA-FRANKLIN MA-
943 PM EDT SAT AUG 13 2016

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1015 PM EDT
FOR NORTHERN HARTFORD...SOUTHEASTERN HAMPSHIRE...WESTERN HAMPDEN AND
FRANKLIN COUNTIES...

AT 941 PM EDT...A SEVERE THUNDERSTORM WAS LOCATED NEAR ASHFIELD...OR
11 MILES NORTH OF NORTHAMPTON...MOVING EAST AT 65 MPH.

HAZARD...70 MPH WIND GUSTS. 

SOURCE...RADAR INDICATED. 

IMPACT...EXPECT CONSIDERABLE TREE DAMAGE. DAMAGE IS LIKELY TO MOBILE 
         HOMES...ROOFS...AND OUTBUILDINGS. 

LOCATIONS IMPACTED INCLUDE...
CONWAY...SUNDERLAND...DEERFIELD....MONTAGUE....LEVERETT....WENDELL...
NEW SALEM.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS IS A DANGEROUS SITUATION. THIS STORM IS PRODUCING WIDESPREAD
WIND DAMAGE ACROSS WESTERN MASSACHUSETTS. SEEK SHELTER NOW INSIDE A
STURDY STRUCTURE AND STAY AWAY FROM WINDOWS.

INTENSE THUNDERSTORM LINES CAN PRODUCE BRIEF TORNADOES AND
WIDESPREAD SIGNIFICANT WIND DAMAGE. ALTHOUGH A TORNADO IS NOT
IMMEDIATELY LIKELY...IT IS BEST TO MOVE TO AN INTERIOR ROOM ON THE
LOWEST FLOOR OF A BUILDING. THIS STORM MAY CAUSE SERIOUS INJURY AND
SIGNIFICANT PROPERTY DAMAGE.

&&

LAT...LON 4197 7289 4198 7290 4273 7268 4272 7228
      4267 7227 4264 7222 4258 7228 4204 7246
      4203 7251 4195 7249 4194 7251 4184 7252
      4180 7295
TIME...MOT...LOC 0141Z 269DEG 55KT 4249 7276 

TORNADO...POSSIBLE
HAIL...<.75IN
WIND...70MPH
 
$$

SIPPRELL
924 
WWUS51 KBOX 140153
SVSBOX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TAUNTON MA
953 PM EDT SAT AUG 13 2016

CTC003-MAC011-013-015-140203-
/O.CAN.KBOX.SV.W.0102.000000T0000Z-160814T0215Z/
HARTFORD CT-HAMPSHIRE MA-HAMPDEN MA-FRANKLIN MA-
953 PM EDT SAT AUG 13 2016

...THE SEVERE THUNDERSTORM WARNING FOR NORTHERN HARTFORD...
SOUTHEASTERN HAMPSHIRE...WESTERN HAMPDEN AND FRANKLIN COUNTIES IS
CANCELLED...
    


LAT...LON 4197 7289 4198 7290 4273 7268 4272 7228
      4267 7227 4264 7222 4258 7228 4204 7246
      4203 7251 4195 7249 4194 7251 4184 7252
      4180 7295
TIME...MOT...LOC 0152Z 262DEG 39KT 4251 7258 

$$

SIPPRELL

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 13, 8:22 PM EDTSpecial Weather StatementBOXFranklin38 min
Aug 13, 8:37 PM EDTSevere Thunderstorm WarningBOXFranklin, Hampden, Hampshire53 min
Aug 13, 8:59 PM EDTSpecial Weather StatementBOXFranklin, Hampden, Hampshire61 min
Aug 13, 9:04 PM EDTAreal Flood WarningBOXFranklin, Hampshire, Middlesex, Worcester116 min
Aug 13, 9:04 PM EDTSpecial Weather StatementBOXMiddlesex56 min
Aug 13, 9:29 PM EDTSevere Thunderstorm WarningBOXFranklin, Hampden, Hampshire46 min
Aug 13, 9:31 PM EDTAreal Flood WarningBOXFranklin, Hampshire, Worcester119 min
Aug 13, 9:59 PM EDTSpecial Weather StatementBOXEssex, Middlesex, Worcester61 min
Aug 13, 10:07 PM EDTSevere Thunderstorm WarningBOXFranklin, Hampshire, Middlesex, Worcester38 min
Aug 13, 10:15 PM EDTSevere Thunderstorm WarningBOXHampden, Hampshire, Worcester45 min
Aug 13, 10:25 PM EDTFlash Flood WarningBOXWorcester2 hr
Aug 13, 10:38 PM EDTSevere Thunderstorm WarningBOXMiddlesex, Worcester52 min
Aug 13, 11:04 PM EDTSpecial Weather StatementBOXNorfolk41 min
Aug 13, 11:06 PM EDTSpecial Marine WarningBOX54 min
Aug 13, 11:35 PM EDTSpecial Weather StatementBOXBristol, Norfolk, Plymouth55 min
Aug 13, 11:42 PM EDTSpecial Marine WarningBOX63 min
Aug 14, 12:44 AM EDTSpecial Marine WarningBOX61 min
Aug 14, 1:44 AM EDTSpecial Marine WarningBOX61 min
Aug 14, 1:50 AM EDTSevere Thunderstorm WarningBOXWorcester40 min
Aug 14, 2:04 AM EDTSpecial Weather StatementBOXBristol, Norfolk56 min
Aug 14, 2:10 AM EDTSpecial Marine WarningBOX65 min
Aug 14, 2:28 AM EDTSevere Thunderstorm WarningBOXNorfolk, Plymouth, Suffolk32 min
Aug 14, 3:13 AM EDTSpecial Marine WarningBOX62 min
Aug 14, 3:28 AM EDTExcessive Heat WarningBOXBristol, Plymouth16 hr
Aug 14, 7:27 PM EDTSpecial Weather StatementBOXWorcester33 min
Aug 14, 7:47 PM EDTSpecial Weather StatementBOXWorcester28 min
Aug 14, 7:49 PM EDTSevere Thunderstorm WarningBOXMiddlesex, Worcester38 min
Aug 13, 10:28 PM EDTSpecial Weather StatementBOX47 min
Aug 13, 11:19 PM EDTAreal Flood WarningBOXNortheastern Connecticut Planning Region3 hr
Aug 14, 12:06 AM EDTSpecial Weather StatementBOX54 min
Aug 14, 12:15 AM EDTSevere Thunderstorm WarningBOXCapitol Planning Region45 min
Aug 14, 12:37 AM EDTSpecial Weather StatementBOX38 min
Aug 14, 12:51 AM EDTSpecial Weather StatementBOX39 min
Aug 14, 1:32 AM EDTSpecial Weather StatementBOX58 min

Nearby

Severe Thunderstorm Warnings in Massachusetts, 2016Severe Thunderstorm Warnings in Connecticut, 2016Every severe thunderstorm warning in 2016

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.