Alert archive / Connecticut / Severe Thunderstorm Warnings in 2016

Severe Thunderstorm Warning 91, NWS Boston/Norton, MA

August 12, 2016Providence County, Rhode Island; Northeastern Connecticut Planning Region, Connecticut; Worcester County, Massachusetts

NWS Boston/Norton, MA issued this severe thunderstorm warning at Aug 12, 2016, 4:28 PM EDT for Providence County, Rhode Island; Northeastern Connecticut Planning Region, Connecticut; Worcester County, Massachusetts. It was in force for 47 min. 7 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 12, 2016, 4:28 PM EDT (20:28 UTC)
Expired
Aug 12, 2016, 5:15 PM EDT
In force
47 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, Worcester County, MA, Providence County, RI

The radar

The Boston radar (KBOX), 47 km from the middle of the area, began a volume at 20:28 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 12, 4:40 PM EDTTSTM WND DMGPomfret, CTTREES AND WIRES DOWN ON QUASSET ROAD
Aug 12, 4:40 PM EDTTSTM WND DMGWoodstock, CTTREE DOWN ON WIRES ON SPRUCEDALE ROAD
Aug 12, 4:40 PM EDTTSTM WND DMGWoodstock, CTTREES DOWN AND UTILITY POLE SNAPPED ON EAST QUASSET ROAD
Aug 12, 5:05 PM EDTTSTM WND DMGFoster, RIFOSTER POLICE REPORTED MANY TREES DOWN ON ROUTE 6
Aug 12, 5:07 PM EDTTSTM WND DMGFoster, RITREES AND WIRES DOWN ON FOSTER ROAD
Aug 12, 5:13 PM EDTTSTM WND DMGGlocester, RITREE DOWN ON REYNOLDS ROAD PER GLOCESTER POLICE
Aug 12, 5:16 PM EDTTSTM WND DMGGlocester, RITREE DOWN ON LAKE WASHINGTON DRIVE

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, 8.5 hours before the alert went out and 148 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 2016-08-12Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 383 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Chatham, MA at 12:00Z on 2016-08-12The 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
383 J/kg
Mixed-layer CIN
-76 J/kg
Mixed-layer LCL
731 m above ground
0-6 km bulk shear
15 kt
0-1 km storm-relative helicity
62 m²/s²
0-3 km storm-relative helicity
11 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

381 
WUUS51 KBOX 122028
SVRBOX
CTC013-015-MAC027-RIC007-122115-
/O.NEW.KBOX.SV.W.0091.160812T2028Z-160812T2115Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TAUNTON MA
428 PM EDT FRI AUG 12 2016

THE NATIONAL WEATHER SERVICE IN TAUNTON HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  WINDHAM COUNTY IN NORTHERN CONNECTICUT...
  NORTHEASTERN TOLLAND COUNTY IN NORTHERN CONNECTICUT...
  SOUTHEASTERN WORCESTER COUNTY IN CENTRAL MASSACHUSETTS...
  NORTHERN PROVIDENCE COUNTY IN RHODE ISLAND...

* UNTIL 515 PM EDT

* AT 428 PM EDT...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
  EXTENDING FROM NORTH SMITHFIELD TO NEAR WEBSTER TO NEAR
  WILLINGTON... MOVING SOUTHEAST AT 20 MPH.

  HAZARD...60 MPH WIND GUSTS. 

  SOURCE...RADAR INDICATED. 

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

* LOCATIONS IMPACTED INCLUDE...
  WOONSOCKET...CUMBERLAND...NORTH PROVIDENCE...JOHNSTON...
  NORTH ATTLEBOROUGH...MANSFIELD...WINDHAM...SMITHFIELD...LINCOLN...
  CENTRAL FALLS...KILLINGLY...WEBSTER...SOUTHBRIDGE...BELLINGHAM...
  BURRILLVILLE...UXBRIDGE...STAFFORD...NORTH SMITHFIELD...
  DUDLEY AND WRENTHAM.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

TORRENTIAL RAINFALL IS OCCURRING WITH THESE STORMS...AND MAY LEAD TO
FLASH FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED ROADWAYS.

&&

LAT...LON 4207 7190 4208 7150 4202 7149 4202 7140
      4199 7138 4189 7138 4174 7213 4194 7231
TIME...MOT...LOC 2028Z 292DEG 16KT 4200 7153 4202 7184 4195 7221 

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

SIPPRELL
1 follow-up statement
185 
WWUS51 KBOX 122050
SVSBOX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TAUNTON MA
450 PM EDT FRI AUG 12 2016

CTC013-MAC027-122059-
/O.CAN.KBOX.SV.W.0091.000000T0000Z-160812T2115Z/
TOLLAND CT-WORCESTER MA-
450 PM EDT FRI AUG 12 2016

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN TOLLAND AND
SOUTHEASTERN WORCESTER COUNTIES IS CANCELLED...

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

LAT...LON 4193 7216 4203 7197 4203 7185 4202 7180
      4201 7180 4202 7149 4189 7138 4174 7213
TIME...MOT...LOC 2049Z 292DEG 16KT 4197 7142 4199 7173 4192 7210 

$$

CTC015-RIC007-122115-
/O.CON.KBOX.SV.W.0091.000000T0000Z-160812T2115Z/
WINDHAM CT-PROVIDENCE RI-
450 PM EDT FRI AUG 12 2016

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 515 PM EDT
FOR NORTHERN WINDHAM AND NORTHERN PROVIDENCE COUNTIES...

AT 449 PM EDT...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
EXTENDING FROM CUMBERLAND TO BURRILLVILLE TO EASTFORD...MOVING EAST
AT 20 MPH.

HAZARD...60 MPH WIND GUSTS. 

SOURCE...RADAR INDICATED. 

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

LOCATIONS IMPACTED INCLUDE...
WOONSOCKET...CUMBERLAND...NORTH PROVIDENCE...JOHNSTON...WINDHAM...
SMITHFIELD...LINCOLN...CENTRAL FALLS...KILLINGLY...WEBSTER...
BURRILLVILLE...UXBRIDGE...NORTH SMITHFIELD...DUDLEY...SCITUATE...
GLOCESTER...PUTNAM...THOMPSON...BLACKSTONE AND DOUGLAS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

TORRENTIAL RAINFALL IS OCCURRING WITH THESE STORMS...AND MAY LEAD TO
FLASH FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED ROADWAYS.

&&

LAT...LON 4193 7216 4203 7197 4203 7185 4202 7180
      4201 7180 4202 7149 4189 7138 4174 7213
TIME...MOT...LOC 2049Z 292DEG 16KT 4197 7142 4199 7173 4192 7210 

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

SIPPRELL

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 12, 3:22 PM EDTSevere Thunderstorm WarningBOXProvidence53 min
Aug 12, 4:14 PM EDTSpecial Weather StatementBOXProvidence46 min
Aug 12, 4:58 PM EDTSpecial Weather StatementBOXProvidence47 min
Aug 12, 5:07 PM EDTSpecial Weather StatementBOXProvidence53 min
Aug 12, 5:18 PM EDTSevere Thunderstorm WarningBOXBristol, Kent, Providence42 min
Aug 12, 5:27 PM EDTAreal Flood AdvisoryBOXKent, Providence2 hr
Aug 12, 5:36 PM EDTSpecial Weather StatementBOXKent39 min
Aug 12, 5:43 PM EDTAreal Flood WarningBOXKent, Providence2 hr
Aug 12, 5:51 PM EDTSevere Thunderstorm WarningBOXBristol, Kent, Providence54 min
Aug 12, 6:15 PM EDTFlash Flood WarningBOXKent, Providence3 hr
Aug 12, 6:43 PM EDTSpecial Weather StatementBOXBristol, Kent47 min
Aug 12, 7:01 PM EDTSpecial Weather StatementBOXKent, Newport44 min
Aug 12, 7:06 PM EDTHeat AdvisoryBOXKent, Providence24 hr
Aug 11, 8:30 PM EDTSpecial Weather StatementBOX45 min
Aug 11, 8:41 PM EDTAreal Flood AdvisoryBOXCapitol Planning Region64 min
Aug 12, 2:22 PM EDTExcessive Heat WarningBOXCapitol Planning Region, Northeastern Connecticut Planning Region5 hr
Aug 12, 6:11 PM EDTSevere Thunderstorm WarningBOXNortheastern Connecticut Planning Region49 min
Aug 12, 1:54 PM EDTSpecial Weather StatementBOXHampden51 min
Aug 12, 2:32 PM EDTSpecial Weather StatementBOXHampden, Hampshire43 min
Aug 12, 2:39 PM EDTSpecial Weather StatementBOXWorcester51 min
Aug 12, 2:51 PM EDTSevere Thunderstorm WarningBOXHampden, Worcester39 min
Aug 12, 2:57 PM EDTSevere Thunderstorm WarningBOXHampden, Hampshire26 min
Aug 12, 3:56 PM EDTSpecial Weather StatementBOXMiddlesex49 min
Aug 12, 5:17 PM EDTSevere Thunderstorm WarningBOXFranklin, Hampden, Hampshire43 min
Aug 12, 5:33 PM EDTSpecial Marine WarningBOX57 min
Aug 12, 6:01 PM EDTSpecial Marine WarningBOX59 min

Nearby

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