Alert archive / Rhode Island / Severe Thunderstorm Warnings in 2016

Severe Thunderstorm Warning 96, NWS Boston/Norton, MA

August 13, 2016Bristol County, Kent County, Rhode Island

NWS Boston/Norton, MA issued this severe thunderstorm warning at Aug 13, 2016, 1:30 PM EDT for Bristol County, Kent County, Rhode Island. It was in force for 30 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
Aug 13, 2016, 1:30 PM EDT (17:30 UTC)
Expired
Aug 13, 2016, 2:00 PM EDT
In force
30 min
Issued by
NWS Boston/Norton, MA
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

Counties Bristol County, RI, Kent County, RI

The radar

The Boston radar (KBOX), 36 km from the middle of the area, began a volume at 17:32 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, 5.5 hours before the alert went out and 116 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 2016-08-13Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 231 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 2016-08-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 28 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
231 J/kg
Mixed-layer CIN
-130 J/kg
Mixed-layer LCL
1051 m above ground
0-6 km bulk shear
21 kt
0-1 km storm-relative helicity
28 m²/s²
0-3 km storm-relative helicity
105 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

527 
WUUS51 KBOX 131730
SVRBOX
RIC001-003-131800-
/O.NEW.KBOX.SV.W.0096.160813T1730Z-160813T1800Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TAUNTON MA
130 PM EDT SAT AUG 13 2016

THE NATIONAL WEATHER SERVICE IN TAUNTON HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  WESTERN BRISTOL COUNTY IN RHODE ISLAND...
  SOUTHEASTERN KENT COUNTY IN RHODE ISLAND...

* UNTIL 200 PM EDT

* AT 130 PM EDT...A SEVERE THUNDERSTORM WAS LOCATED NEAR EAST
  GREENWICH...OR NEAR NORTH KINGSTOWN...MOVING EAST AT 10 MPH.

  HAZARD...60 MPH WIND GUSTS. 

  SOURCE...RADAR INDICATED. 

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

* LOCATIONS IMPACTED INCLUDE...
  WARWICK...NORTH KINGSTOWN...BRISTOL...BARRINGTON...
  EAST GREENWICH...WARREN AND PRUDENCE ISLAND.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

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

&&

LAT...LON 4166 7154 4167 7131 4169 7129 4171 7129
      4172 7133 4168 7138 4169 7143 4176 7127
      4164 7126 4167 7128 4168 7128 4165 7130
      4165 7142 4160 7149
TIME...MOT...LOC 1730Z 247DEG 9KT 4163 7144 

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

NOCERA

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 12, 11:07 PM EDTSpecial Weather StatementBOXWashington38 min
Aug 12, 11:46 PM EDTSpecial Weather StatementBOXWashington44 min
Aug 13, 3:41 PM EDTSevere Thunderstorm WarningBOXProvidence34 min
Aug 13, 4:09 PM EDTHeat AdvisoryBOXBristol, Kent, Newport, Providence, Washington27 hr
Aug 13, 4:34 PM EDTAreal Flood AdvisoryBOXProvidence116 min
Aug 13, 5:04 PM EDTSpecial Weather StatementBOXProvidence26 min
Aug 13, 6:38 PM EDTAreal Flood AdvisoryBOXProvidence52 min

Nearby

Severe 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.