Alert archive / Rhode Island / Severe Thunderstorm Warnings in 2014

Severe Thunderstorm Warning 3, NWS Boston/Norton, MA

May 25, 2014Providence County, Rhode Island; Northeastern Connecticut Planning Region, Connecticut; Worcester County, Massachusetts

NWS Boston/Norton, MA issued this severe thunderstorm warning at May 25, 2014, 2:15 PM EDT for Providence County, Rhode Island; Northeastern Connecticut Planning Region, Connecticut; Worcester County, Massachusetts. It was in force for 30 min. 6 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
May 25, 2014, 2:15 PM EDT (18:15 UTC)
Expired
May 25, 2014, 2:45 PM EDT
In force
30 min
Issued by
NWS Boston/Norton, MA
Area
Storm-based polygon

Counties Northeastern Connecticut Planning Region, CT, Worcester County, MA, Providence County, RI

The radar

The Boston radar (KBOX), 65 km from the middle of the area, began a volume at 18:15 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
May 25, 2:30 PM EDTHAIL 1Charlton, MAQUARTER SIZE HAIL REPORTED IN SOUTHERN PART OF CHARLTON.
May 25, 2:30 PM EDTHAIL 1.25Dudley, MAHALF-DOLLAR SIZE HAIL REPORTED.
May 25, 2:46 PM EDTHAIL 0.75Woodstock, CTDIME SIZE HAIL REPORTED.
May 25, 2:46 PM EDTHAIL 1Woodstock, CTDIME SIZE HAIL REPORTED AT 246 PM. NICKEL TO QUARTER SIZE HAIL REPORTED AT 249 PM.
May 25, 2:53 PM EDTHAIL 0.75Brooklyn, CTHAM RADIO
May 25, 2:53 PM EDTHAIL 0.88Brooklyn, CTDIME TO NICKEL SIZE HAIL LASTED 15 MINUTES.

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, 6.3 hours before the alert went out and 149 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 2014-05-25Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 10 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 2014-05-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 59 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
10 J/kg
Mixed-layer CIN
-100 J/kg
Mixed-layer LCL
1127 m above ground
0-6 km bulk shear
27 kt
0-1 km storm-relative helicity
59 m²/s²
0-3 km storm-relative helicity
77 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

926 
WUUS51 KBOX 251815
SVRBOX
CTC015-MAC027-RIC007-251845-
/O.NEW.KBOX.SV.W.0003.140525T1815Z-140525T1845Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TAUNTON MA
215 PM EDT SUN MAY 25 2014

THE NATIONAL WEATHER SERVICE IN TAUNTON HAS ISSUED A

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

* UNTIL 245 PM EDT

* AT 214 PM EDT...TRAINED WEATHER SPOTTERS REPORTED A SEVERE 
  THUNDERSTORM PRODUCING QUARTER SIZE HAIL IN LEICESTER AND IN 
  CHARLTON. THIS STORM WAS LOCATED OVER OXFORD...OR 12 MILES 
  SOUTHWEST OF WORCESTER...AND WAS MOVING SOUTH AT 35 MPH.

* SOME LOCATIONS IMPACTED INCLUDE...
  PLAINFIELD...KILLINGLY...WEBSTER...SOUTHBRIDGE...AUBURN...
  BURRILLVILLE...OXFORD...MILLBURY...CHARLTON...DUDLEY...GLOCESTER...
  PUTNAM...THOMPSON...SUTTON...DOUGLAS...BROOKLYN...WOODSTOCK...
  CANTERBURY...FOSTER AND POMFRET.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SEVERE THUNDERSTORMS PRODUCE DAMAGING WINDS AND LARGE HAIL. GO
INDOORS AND STAY AWAY FROM WINDOWS.  DRIVERS SHOULD PREPARE FOR LOW
VISIBILITY AND AVOID FLOODED ROADS.

&&

LAT...LON 4216 7203 4217 7179 4176 7169 4175 7205
TIME...MOT...LOC 1814Z 356DEG 29KT 4210 7191 
$$

RLG
1 follow-up statement
839 
WWUS51 KBOX 251834
SVSBOX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TAUNTON MA
234 PM EDT SUN MAY 25 2014

CTC015-MAC027-RIC007-251845-
/O.CON.KBOX.SV.W.0003.000000T0000Z-140525T1845Z/
WINDHAM CT-WORCESTER MA-PROVIDENCE RI-
234 PM EDT SUN MAY 25 2014

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 245 PM EDT
FOR NORTHEASTERN WINDHAM...SOUTH CENTRAL WORCESTER AND WESTERN
PROVIDENCE COUNTIES...

AT 234 PM EDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE
OF PRODUCING LARGE HAIL UP TO PING PONG BALL SIZE. THIS STORM WAS
LOCATED NEAR WOODSTOCK...OR 19 MILES NORTHEAST OF MANSFIELD...MOVING
SOUTH AT 30 MPH.

LOCATIONS IMPACTED INCLUDE...
PLAINFIELD...KILLINGLY...WEBSTER...SOUTHBRIDGE...AUBURN...
BURRILLVILLE...OXFORD...MILLBURY...CHARLTON...DUDLEY...GLOCESTER...
PUTNAM...THOMPSON...SUTTON...DOUGLAS...BROOKLYN...WOODSTOCK...
CANTERBURY...FOSTER AND POMFRET.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SEVERE THUNDERSTORMS PRODUCE DAMAGING WINDS AND DESTRUCTIVE HAIL. GO
INSIDE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME OR
BUSINESS. DRIVERS SHOULD EXPECT POOR VISIBILITY AND AVOID FLOODED
ROADS.

WHILE NOT IMMEDIATELY LIKELY...SHORT LIVED TORNADOES ARE POSSIBLE IN
ADDITION TO SIGNIFICANT WIND DAMAGE. MOVE TO AN INTERIOR ROOM ON THE
LOWEST FLOOR OF YOUR HOME OR BUSINESS.

&&

LAT...LON 4216 7203 4217 7179 4176 7169 4175 7205
TIME...MOT...LOC 1834Z 002DEG 25KT 4199 7196 

$$

RLG

The office that day

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

IssuedProductOfficeCountiesLasted
May 25, 1:07 PM EDTSpecial Weather StatementBOXProvidence83 min
May 25, 2:37 PM EDTSevere Thunderstorm WarningBOXKent, Washington38 min
May 25, 2:41 PM EDTSpecial Weather StatementBOXWashington49 min
May 25, 1:42 PM EDTSevere Thunderstorm WarningBOXNortheastern Connecticut Planning Region33 min
May 25, 2:43 PM EDTSevere Thunderstorm WarningBOXNortheastern Connecticut Planning Region47 min
May 25, 3:32 PM EDTSpecial Weather StatementBOX28 min
May 25, 3:03 PM EDTSevere Thunderstorm WarningBOXMiddlesex, Worcester27 min
May 25, 3:25 PM EDTSpecial Marine WarningBOX95 min
May 25, 4:45 PM EDTSmall Craft AdvisoryBOX37 hr
May 25, 6:30 PM EDTSevere Thunderstorm WarningBOXMiddlesex, Worcester30 min
May 25, 6:57 PM EDTSevere Thunderstorm WarningBOXMiddlesex, Worcester48 min
May 25, 7:40 PM EDTSevere Thunderstorm WarningBOXMiddlesex, Norfolk, Worcester50 min

Nearby

Severe Thunderstorm Warnings in Rhode Island, 2014Severe Thunderstorm Warnings in Connecticut, 2014Severe Thunderstorm Warnings in Massachusetts, 2014Every severe thunderstorm warning in 2014

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.