Alert archive / Massachusetts / Severe Thunderstorm Warnings in 2016

Severe Thunderstorm Warning 80, NWS Boston/Norton, MA

August 6, 2016Bristol County, Norfolk County, Massachusetts; Providence County, Rhode Island; Northeastern Connecticut Planning Region, Connecticut

NWS Boston/Norton, MA issued this severe thunderstorm warning at Aug 6, 2016, 6:13 PM EDT for Bristol County, Norfolk County, Massachusetts; Providence County, Rhode Island; Northeastern Connecticut Planning Region, Connecticut. It was in force for 34 min. 4 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 6, 2016, 6:13 PM EDT (22:13 UTC)
Expired
Aug 6, 2016, 6:47 PM EDT
In force
34 min
Issued by
NWS Boston/Norton, MA
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

Counties Northeastern Connecticut Planning Region, CT, Bristol County, MA, Norfolk County, MA, Providence County, RI

The radar

The Boston radar (KBOX), 25 km from the middle of the area, began a volume at 22:16 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 6, 6:30 PM EDTTSTM WND DMGCumberland, RITREE DOWN ON A CAR ON MENDON ROAD.
Aug 6, 6:40 PM EDTTSTM WND DMGAttleboro, MABRANCH DOWN ON WIRES ON GAYWOOD AVE
Aug 6, 6:40 PM EDTTSTM WND DMGAttleboro, MABRANCH DOWN ON WIRES ON GAYWOOD AVE.
Aug 6, 6:40 PM EDTTSTM WND DMGNorth Attleboro, MALARGE TREE DOWN ON ANAWAN STREET.

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

The nearest sounding before it

Chatham, MA (KCHH), launched 12:00Z, 10.2 hours before the alert went out and 126 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 2016-08-06Temperature 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 12:00Z on 2016-08-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 99 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
791 m above ground
0-6 km bulk shear
22 kt
0-1 km storm-relative helicity
99 m²/s²
0-3 km storm-relative helicity
110 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

593 
WUUS51 KBOX 062213
SVRBOX
CTC015-MAC005-021-RIC007-062300-
/O.NEW.KBOX.SV.W.0080.160806T2213Z-160806T2300Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TAUNTON MA
613 PM EDT SAT AUG 6 2016

THE NATIONAL WEATHER SERVICE IN TAUNTON HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  EAST CENTRAL WINDHAM COUNTY IN NORTHERN CONNECTICUT...
  NORTHWESTERN BRISTOL COUNTY IN SOUTHEASTERN MASSACHUSETTS...
  SOUTHERN NORFOLK COUNTY IN EASTERN MASSACHUSETTS...
  PROVIDENCE COUNTY IN RHODE ISLAND...

* UNTIL 700 PM EDT

* AT 612 PM EDT...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
  EXTENDING FROM MEDWAY MASSACHUSETTS TO NEAR KILLINGLY
  CONNECTICUT...MOVING EAST AT 30 MPH.

  HAZARD...60 MPH WIND GUSTS AND PENNY SIZE HAIL. 

  SOURCE...RADAR INDICATED. 

  IMPACT...EXPECT TREES AND WIRES DOWN.

* LOCATIONS IMPACTED INCLUDE...
  PROVIDENCE...BROCKTON...WARWICK...CRANSTON...PAWTUCKET...
  EAST PROVIDENCE...WOONSOCKET...CUMBERLAND...RANDOLPH...
  NORTH PROVIDENCE...FRANKLIN...JOHNSTON...NORTH ATTLEBOROUGH...
  NORWOOD...MILFORD...STOUGHTON...ATTLEBORO...WALPOLE...
  MANSFIELD AND EASTON.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.

&&

LAT...LON 4178 7193 4201 7165 4202 7150 4212 7150
      4213 7148 4215 7148 4218 7143 4216 7097
      4212 7101 4210 7108 4206 7107 4176 7140
TIME...MOT...LOC 2212Z 269DEG 24KT 4213 7143 4184 7178 

HAIL...0.75IN
WIND...60MPH
 
$$
FIELD
2 follow-up statements
953 
WWUS51 KBOX 062233
SVSBOX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TAUNTON MA
633 PM EDT SAT AUG 6 2016

CTC015-062241-
/O.CAN.KBOX.SV.W.0080.000000T0000Z-160806T2300Z/
WINDHAM CT-
633 PM EDT SAT AUG 6 2016

...THE SEVERE THUNDERSTORM WARNING FOR EAST CENTRAL WINDHAM COUNTY IS
CANCELLED...

THE STORMS WHICH PROMPTED THE WARNING HAVE MOVED OUT OF THE WARNED
AREA. THEREFORE...THE WARNING HAS BEEN CANCELLED.

LAT...LON 4182 7178 4198 7158 4200 7146 4210 7145
      4214 7141 4214 7139 4217 7135 4216 7097
      4212 7101 4210 7108 4206 7107 4179 7137
TIME...MOT...LOC 2231Z 269DEG 24KT 4213 7128 4184 7163 

$$

MAC005-021-RIC007-062300-
/O.CON.KBOX.SV.W.0080.000000T0000Z-160806T2300Z/
BRISTOL MA-NORFOLK MA-PROVIDENCE RI-
633 PM EDT SAT AUG 6 2016

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 700 PM EDT
FOR NORTHWESTERN BRISTOL...SOUTHERN NORFOLK AND CENTRAL PROVIDENCE
COUNTIES...

AT 631 PM EDT...STRONG THUNDERSTORMS WERE LOCATED ALONG A LINE
EXTENDING FROM WALPOLE MASSACHUSETTS TO NEAR SCITUATE RHODE
ISLAND...MOVING EAST AT 30 MPH.  THE WIND GUSTS IN THE STORMS HAD
WEAKENED CONSIDERABLY BUT AN ISOLATED SEVERE GUST TO 55 TO 60 MPH IS
STILL POSSIBLE. OTHERWISE...FREQUENT LIGHTNING, VERY HEAVY
DOWNPOURS, AND SMALL HAIL WILL ACCOMPANY THESE STORMS.

HAZARD...60 MPH WIND GUSTS AND PENNY SIZE HAIL. 

SOURCE...RADAR INDICATED. 

IMPACT...ISOLATED TREE AND WIRE DAMAGE POSSIBLE.

LOCATIONS IMPACTED INCLUDE...
PROVIDENCE...BROCKTON...CRANSTON...PAWTUCKET...EAST PROVIDENCE...
WOONSOCKET...CUMBERLAND...RANDOLPH...NORTH PROVIDENCE...FRANKLIN...
JOHNSTON...NORTH ATTLEBOROUGH...NORWOOD...STOUGHTON...ATTLEBORO...
WALPOLE...MANSFIELD...EASTON...CANTON AND SMITHFIELD.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.

&&

LAT...LON 4182 7178 4198 7158 4200 7146 4210 7145
      4214 7141 4214 7139 4217 7135 4216 7097
      4212 7101 4210 7108 4206 7107 4179 7137
TIME...MOT...LOC 2231Z 269DEG 24KT 4213 7128 4184 7163 

HAIL...0.75IN
WIND...60MPH
 
$$
FIELD
111 
WWUS51 KBOX 062247
SVSBOX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TAUNTON MA
647 PM EDT SAT AUG 6 2016

MAC005-021-RIC007-062256-
/O.CAN.KBOX.SV.W.0080.000000T0000Z-160806T2300Z/
BRISTOL MA-NORFOLK MA-PROVIDENCE RI-
647 PM EDT SAT AUG 6 2016

...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN BRISTOL...
SOUTHERN NORFOLK AND CENTRAL PROVIDENCE COUNTIES IS CANCELLED...

THE STORMS WHICH PROMPTED THE WARNING HAVE WEAKENED. THEREFORE...THE
SEVERE THUNDERSTORM WARNING HAS BEEN CANCELLED. 

BRIEFLY HEAVY RAIN...FREQUENT LIGHTNING...AND WIND GUSTS UP TO 30
MPH CAN BE EXPECTED AS THESE STORMS MOVE ACROSS SOUTHEAST
MASSACHUSETTS.

LAT...LON 4182 7178 4198 7158 4200 7146 4210 7145
      4214 7141 4214 7139 4217 7135 4216 7097
      4212 7101 4210 7108 4206 7107 4179 7137
TIME...MOT...LOC 2243Z 269DEG 24KT 4213 7117 4184 7152 

$$
FIELD

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 6, 3:23 PM EDTSpecial Weather StatementBOXMiddlesex22 min
Aug 6, 3:55 PM EDTSpecial Weather StatementBOXEssex35 min
Aug 6, 4:17 PM EDTSpecial Weather StatementBOXBristol28 min
Aug 6, 4:46 PM EDTSpecial Weather StatementBOXWorcester44 min
Aug 6, 5:28 PM EDTAreal Flood AdvisoryBOXHampden, Worcester2 hr
Aug 6, 5:42 PM EDTSevere Thunderstorm WarningBOXNorfolk, Worcester33 min
Aug 6, 6:11 PM EDTSpecial Marine WarningBOX49 min
Aug 6, 6:18 PM EDTSpecial Marine WarningBOX42 min
Aug 6, 3:33 PM EDTSpecial Weather StatementBOXWashington42 min
Aug 6, 6:05 PM EDTSpecial Weather StatementBOXBristol, Kent, Providence55 min
Aug 6, 5:13 PM EDTSpecial Weather StatementBOX47 min

Nearby

Severe Thunderstorm Warnings in Massachusetts, 2016Severe Thunderstorm Warnings in Rhode Island, 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.