Alert archive / Rhode Island / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 32, NWS Boston/Norton, MA

June 23, 2012Bristol County, Newport County, Rhode Island; Bristol County, Massachusetts

NWS Boston/Norton, MA issued this severe thunderstorm warning at Jun 23, 2012, 6:10 PM EDT for Bristol County, Newport County, Rhode Island; Bristol County, Massachusetts. It was in force for 31 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Jun 23, 2012, 6:10 PM EDT (22:10 UTC)
Expired
Jun 23, 2012, 6:41 PM EDT
In force
31 min
Issued by
NWS Boston/Norton, MA
Area
Storm-based polygon

Counties Bristol County, MA, Bristol County, RI, Newport County, RI

The radar

The Boston radar (KBOX), 31 km from the middle of the area, began a volume at 22:10 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.

The nearest sounding before it

Chatham, MA (KCHH), launched 12:00Z, 10.2 hours before the alert went out and 105 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 2012-06-23Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 365 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 2012-06-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 3 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
365 J/kg
Mixed-layer CIN
-86 J/kg
Mixed-layer LCL
949 m above ground
0-6 km bulk shear
22 kt
0-1 km storm-relative helicity
3 m²/s²
0-3 km storm-relative helicity
71 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.

270 
WUUS51 KBOX 232210
SVRBOX
MAC005-RIC001-005-232300-
/O.NEW.KBOX.SV.W.0032.120623T2210Z-120623T2300Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TAUNTON MA
610 PM EDT SAT JUN 23 2012

THE NATIONAL WEATHER SERVICE IN TAUNTON HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  BRISTOL COUNTY IN RHODE ISLAND...
  THIS INCLUDES THE CITIES OF...BRISTOL...BARRINGTON...
  NORTHEASTERN NEWPORT COUNTY IN RHODE ISLAND...
  CENTRAL BRISTOL COUNTY IN SOUTHEAST MASSACHUSETTS...
  THIS INCLUDES THE CITY OF FALL RIVER...

* UNTIL 700 PM EDT

* AT 610 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND
  DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS LOCATED NEAR
  BARRINGTON...OR NEAR WARWICK...AND WAS MOVING EAST AT 20 MPH.

* SOME LOCATIONS IN THE WARNING INCLUDE...WARREN...TIVERTON...
  SWANSEA...SOMERSET AND WESTPORT.

SEVERE THUNDERSTORMS PRODUCE DAMAGING WINDS AND LARGE HAIL...AS WELL
AS DEADLY LIGHTNING AND TORRENTIAL RAIN. GET TO SAFE SHELTER NOW...
INSIDE A STURDY BUILDING OR IN A VEHICLE. DO NOT SEEK SHELTER UNDER
TREES. IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE STRUCK BY
LIGHTNING. DRIVERS SHOULD BE ALERT FOR PONDING OF WATER AND AVOID
FLOODED ROADS.

&&

LAT...LON 4165 7124 4170 7119 4171 7122 4170 7123
      4167 7123 4165 7125 4166 7128 4166 7131
      4167 7132 4170 7130 4172 7133 4176 7133
      4179 7106 4162 7106
TIME...MOT...LOC 2211Z 268DEG 17KT 4169 7135

$$

SIPPRELL
1 follow-up statement
171 
WWUS51 KBOX 232241
SVSBOX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TAUNTON MA
641 PM EDT SAT JUN 23 2012

MAC005-RIC001-005-232251-
/O.CAN.KBOX.SV.W.0032.000000T0000Z-120623T2300Z/
NEWPORT RI-BRISTOL RI-BRISTOL MA-
641 PM EDT SAT JUN 23 2012

...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL BRISTOL COUNTY IN
SOUTHEAST MASSACHUSETTS...AND BRISTOL AND NORTHEASTERN NEWPORT
COUNTIES IN RHODE ISLAND IS CANCELLED...

THE STORM HAS WEAKENED ACROSS THE WARNED AREA. 

LAT...LON 4165 7124 4170 7119 4171 7122 4170 7123
      4167 7123 4165 7125 4166 7128 4166 7131
      4167 7132 4170 7130 4172 7133 4176 7133
      4179 7106 4162 7106
TIME...MOT...LOC 2241Z 268DEG 17KT 4169 7116

$$

SIPPRELL

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 23, 5:26 PM EDTSevere Thunderstorm WarningBOXBristol, Newport35 min
Jun 23, 5:51 PM EDTSevere Thunderstorm WarningBOXBristol, Kent, Newport, Washington32 min
Jun 23, 3:22 PM EDTSpecial Weather StatementBOXFranklin38 min
Jun 23, 3:52 PM EDTSpecial Weather StatementBOXFranklin38 min
Jun 23, 4:23 PM EDTSpecial Weather StatementBOXEssex52 min
Jun 23, 4:30 PM EDTSevere Thunderstorm WarningBOXEssex, Middlesex35 min
Jun 23, 4:42 PM EDTSevere Thunderstorm WarningBOXMiddlesex, Suffolk48 min
Jun 23, 4:56 PM EDTSevere Thunderstorm WarningBOXMiddlesex, Norfolk, Suffolk49 min
Jun 23, 4:57 PM EDTSevere Thunderstorm WarningBOXEssex, Middlesex33 min
Jun 23, 5:01 PM EDTSpecial Marine WarningBOX89 min
Jun 23, 5:09 PM EDTSevere Thunderstorm WarningBOXEssex, Middlesex, Norfolk, Suffolk36 min
Jun 23, 5:19 PM EDTAreal Flood AdvisoryBOXEssex, Middlesex, Norfolk, Plymouth, Suffolk4 hr
Jun 23, 5:22 PM EDTSevere Thunderstorm WarningBOXNorfolk, Plymouth, Suffolk53 min
Jun 23, 5:27 PM EDTSpecial Marine WarningBOX33 min
Jun 23, 5:52 PM EDTSpecial Marine WarningBOX30 min
Jun 23, 5:55 PM EDTSpecial Marine WarningBOX65 min
Jun 23, 6:06 PM EDTSevere Thunderstorm WarningBOXNorfolk, Plymouth39 min
Jun 23, 6:11 PM EDTSpecial Marine WarningBOX26 min
Jun 23, 6:29 PM EDTSpecial Weather StatementBOXBristol, Plymouth46 min
Jun 23, 6:35 PM EDTSpecial Marine WarningBOX55 min
Jun 23, 6:45 PM EDTSpecial Weather StatementBOXBarnstable, Dukes90 min
Jun 23, 7:26 PM EDTSpecial Marine WarningBOX40 min

Nearby

Severe Thunderstorm Warnings in Rhode Island, 2012Severe Thunderstorm Warnings in Massachusetts, 2012Every severe thunderstorm warning in 2012

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.