Alert archive / Rhode Island / Severe Thunderstorm Warnings in 2016

Severe Thunderstorm Warning 94, NWS Boston/Norton, MA

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

NWS Boston/Norton, MA issued this severe thunderstorm warning at Aug 12, 2016, 5:51 PM EDT for Bristol County, Kent County, Providence County, Rhode Island; Bristol County, Massachusetts; Northeastern Connecticut Planning Region, Connecticut. It was in force for 54 min. 3 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, 5:51 PM EDT (21:51 UTC)
Expired
Aug 12, 2016, 6:45 PM EDT
In force
54 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, Bristol County, RI, Kent County, RI, Providence County, RI

The radar

The Boston radar (KBOX), 35 km from the middle of the area, began a volume at 21:54 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, 6:00 PM EDTTSTM WND DMGPomfret, CTTREE AND WIRES DOWN IN A DRIVEWAY AT COUNTRY MANOR OFF PUTNAM ROAD
Aug 12, 6:40 PM EDTTSTM WND DMGKillingly, CTTREE DOWN ON TRUCK BETWEEN EXITS 91 AND 92 ON I-395S
Aug 12, 6:45 PM EDTTSTM WND DMGCoventry, RITREE AND WIRES DOWN ON LEWIS FARM ROAD

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, 9.9 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 2016-08-12Temperature 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°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.

413 
WUUS51 KBOX 122151
SVRBOX
CTC015-MAC005-RIC001-003-007-122245-
/O.NEW.KBOX.SV.W.0094.160812T2151Z-160812T2245Z/

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

THE NATIONAL WEATHER SERVICE IN TAUNTON HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  WINDHAM COUNTY IN NORTHERN CONNECTICUT...
  WEST CENTRAL BRISTOL COUNTY IN SOUTHEASTERN MASSACHUSETTS...
  NORTHERN BRISTOL COUNTY IN RHODE ISLAND...
  CENTRAL KENT COUNTY IN RHODE ISLAND...
  PROVIDENCE COUNTY IN RHODE ISLAND...

* UNTIL 645 PM EDT

* AT 551 PM EDT...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
  EXTENDING FROM NEAR EASTFORD TO NEAR KILLINGLY TO FOSTER...MOVING
  EAST AT 10 MPH.

  HAZARD...60 MPH WIND GUSTS. 

  SOURCE...RADAR INDICATED. 

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

* LOCATIONS IMPACTED INCLUDE...
  PROVIDENCE...WARWICK...CRANSTON...PAWTUCKET...EAST PROVIDENCE...
  COVENTRY...NORTH PROVIDENCE...WEST WARWICK...JOHNSTON...
  PLAINFIELD...SMITHFIELD...LINCOLN...SOMERSET...KILLINGLY...
  BARRINGTON...BURRILLVILLE...SWANSEA...SEEKONK...
  NORTH SMITHFIELD AND REHOBOTH.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

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

&&

LAT...LON 4194 7220 4197 7153 4193 7149 4173 7115
      4172 7122 4173 7122 4172 7123 4171 7131
      4175 7136 4179 7137 4176 7139 4173 7138
      4172 7136 4170 7136 4164 7197
TIME...MOT...LOC 2151Z 292DEG 8KT 4186 7209 4181 7190 4180 7173 

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

SIPPRELL
1 follow-up statement
987 
WWUS51 KBOX 122218
SVSBOX

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

CTC015-MAC005-RIC001-003-007-122245-
/O.CON.KBOX.SV.W.0094.000000T0000Z-160812T2245Z/
WINDHAM CT-BRISTOL MA-BRISTOL RI-KENT RI-PROVIDENCE RI-
618 PM EDT FRI AUG 12 2016

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 645 PM EDT
FOR SOUTHEASTERN WINDHAM...WEST CENTRAL BRISTOL...NORTHERN BRISTOL...
CENTRAL KENT AND PROVIDENCE COUNTIES...

AT 618 PM EDT...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
EXTENDING FROM NEAR POMFRET TO NEAR KILLINGLY TO NEAR SCITUATE...
MOVING EAST AT 10 MPH.

HAZARD...60 MPH WIND GUSTS. 

SOURCE...RADAR INDICATED. 

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

LOCATIONS IMPACTED INCLUDE...
PROVIDENCE...WARWICK...CRANSTON...PAWTUCKET...EAST PROVIDENCE...
COVENTRY...NORTH PROVIDENCE...WEST WARWICK...JOHNSTON...PLAINFIELD...
SMITHFIELD...LINCOLN...SOMERSET...KILLINGLY...BARRINGTON...SWANSEA...
SEEKONK...REHOBOTH...WARREN AND SCITUATE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS IS A DANGEROUS SITUATION. THESE STORMS ARE PRODUCING WIDESPREAD
WIND DAMAGE ACROSS NORTHEAST CONNECTICUT AND NORTHERN RHODE ISLAND.
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. THESE STORMS MAY CAUSE SERIOUS INJURY
AND SIGNIFICANT PROPERTY DAMAGE.

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.

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

&&

LAT...LON 4186 7214 4193 7149 4173 7115 4172 7122
      4173 7122 4172 7123 4171 7131 4175 7136
      4179 7137 4176 7139 4173 7138 4172 7136
      4170 7136 4164 7197
TIME...MOT...LOC 2218Z 270DEG 8KT 4184 7202 4179 7183 4178 7166 

TORNADO...POSSIBLE
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, 4:28 PM EDTSevere Thunderstorm WarningBOXProvidence47 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, 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 12, 1:54 PM EDTSpecial Weather StatementBOXHampden51 min
Aug 12, 2:22 PM EDTExcessive Heat WarningBOXEssex, Middlesex, Norfolk, Suffolk5 hr
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
Aug 11, 8:30 PM EDTSpecial Weather StatementBOX45 min
Aug 11, 8:41 PM EDTAreal Flood AdvisoryBOXCapitol Planning Region64 min
Aug 12, 6:11 PM EDTSevere Thunderstorm WarningBOXNortheastern Connecticut Planning Region49 min

Nearby

Severe Thunderstorm Warnings in Rhode Island, 2016Severe 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.