Alert archive / Massachusetts / Severe Thunderstorm Warnings in 2016

Severe Thunderstorm Warning 52, NWS Boston/Norton, MA

July 22, 2016Providence County, Rhode Island; Hampden County, Worcester County, Massachusetts; Northeastern Connecticut Planning Region, Connecticut

NWS Boston/Norton, MA issued this severe thunderstorm warning at Jul 22, 2016, 7:19 PM EDT for Providence County, Rhode Island; Hampden County, Worcester County, Massachusetts; Northeastern Connecticut Planning Region, Connecticut. It was in force for 41 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
Jul 22, 2016, 7:19 PM EDT (23:19 UTC)
Expired
Jul 22, 2016, 8:00 PM EDT
In force
41 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, Hampden County, MA, Worcester County, MA, Providence County, RI

The radar

The Boston radar (KBOX), 77 km from the middle of the area, began a volume at 23:20 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
Jul 22, 7:25 PM EDTTSTM WND DMGStafford, CTTREES AND WIRES DOWN ON WATERFORD AVE.
Jul 22, 7:25 PM EDTTSTM WND DMGStafford, CTTREES DOWN ON ROCKY DUNDEE ST.

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

The nearest sounding before it

Brookhaven, NY (KOKX), launched 12:00Z, 11.3 hours before the alert went out and 138 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, Brookhaven, NY at 12:00Z on 2016-07-22Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 29 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, Brookhaven, NY at 12:00Z on 2016-07-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 79 square meters per square second.1939Sfc1 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
29 J/kg
Mixed-layer CIN
-125 J/kg
Mixed-layer LCL
1200 m above ground
0-6 km bulk shear
12 kt
0-1 km storm-relative helicity
79 m²/s²
0-3 km storm-relative helicity
113 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

639 
WUUS51 KBOX 222319
SVRBOX
CTC013-015-MAC013-027-RIC007-230000-
/O.NEW.KBOX.SV.W.0052.160722T2319Z-160723T0000Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TAUNTON MA
719 PM EDT FRI JUL 22 2016

THE NATIONAL WEATHER SERVICE IN TAUNTON HAS ISSUED A

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

* UNTIL 800 PM EDT

* AT 719 PM EDT...A SEVERE THUNDERSTORM WAS LOCATED OVER
  WILLINGTON... OR 10 MILES NORTH OF MANSFIELD...MOVING EAST AT 25
  MPH.

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

  SOURCE...RADAR INDICATED. 

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

* LOCATIONS IMPACTED INCLUDE...
  KILLINGLY...WEBSTER...SOUTHBRIDGE...BURRILLVILLE...NORTHBRIDGE...
  ELLINGTON...TOLLAND...OXFORD...UXBRIDGE...CHARLTON...PALMER...
  STAFFORD...DUDLEY...GLOCESTER...PUTNAM...THOMPSON...STURBRIDGE...
  SUTTON...MONSON AND DOUGLAS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4186 7237 4217 7227 4210 7164 4177 7172
TIME...MOT...LOC 2319Z 278DEG 23KT 4194 7226 

HAIL...0.75IN
WIND...60MPH
 
$$

FRANK
1 follow-up statement
903 
WWUS51 KBOX 222354
SVSBOX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TAUNTON MA
754 PM EDT FRI JUL 22 2016

CTC013-015-MAC013-027-RIC007-230003-
/O.EXP.KBOX.SV.W.0052.000000T0000Z-160723T0000Z/
WINDHAM CT-TOLLAND CT-HAMPDEN MA-WORCESTER MA-PROVIDENCE RI-
754 PM EDT FRI JUL 22 2016

...THE SEVERE THUNDERSTORM WARNING FOR NORTHERN WINDHAM...
NORTHEASTERN TOLLAND...SOUTHEASTERN HAMPDEN...SOUTHWESTERN WORCESTER
AND WESTERN PROVIDENCE COUNTIES WILL EXPIRE AT 800 PM EDT...
        
THE MAIN STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE AREA.
THEREFORE...THE WARNING WILL BE ALLOWED TO EXPIRE.  HOWEVER HEAVY
RAIN IS STILL POSSIBLE WITH HEAVY SHOWERS AND EMBEDDED THUNDERSTORMS.

LAT...LON 4186 7237 4217 7227 4210 7164 4177 7172
TIME...MOT...LOC 2351Z 278DEG 23KT 4194 7226 

$$

FRANK

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 22, 5:09 PM EDTSpecial Weather StatementBOXWorcester36 min
Jul 22, 5:36 PM EDTSpecial Weather StatementBOXHampshire39 min
Jul 22, 5:54 PM EDTSevere Thunderstorm WarningBOXHampden, Hampshire51 min
Jul 22, 6:36 PM EDTSevere Thunderstorm WarningBOXHampden, Hampshire, Worcester39 min
Jul 22, 6:53 PM EDTSevere Thunderstorm WarningBOXHampshire, Worcester52 min
Jul 22, 7:13 PM EDTSevere Thunderstorm WarningBOXHampshire, Worcester20 min
Jul 22, 7:16 PM EDTSevere Thunderstorm WarningBOXWorcester44 min
Jul 22, 7:17 PM EDTSpecial Weather StatementBOXHampden58 min
Jul 22, 7:39 PM EDTSevere Thunderstorm WarningBOXHampden51 min
Jul 22, 7:57 PM EDTSevere Thunderstorm WarningBOXMiddlesex, Norfolk, Suffolk, Worcester48 min

Nearby

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