Alert archive / Rhode Island / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 21, NWS Boston/Norton, MA

June 22, 20125 counties in Rhode Island

NWS Boston/Norton, MA issued this severe thunderstorm warning at Jun 22, 2012, 5:27 PM EDT for 5 counties in Rhode Island. It was in force for 39 min. 7 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: Jun 22, 2012, 5:27 PM EDT (21:27 UTC)
Expired: Jun 22, 2012, 6:06 PM EDT
In force: 39 min
Issued by: NWS Boston/Norton, MA
Area: Storm-based polygon

Counties Bristol County, RI, Kent County, RI, Newport County, RI, Providence County, RI, Washington County, RI

The radar

The Boston radar (KBOX), 38 km from the middle of the area, began a volume at 21:27 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

Time	Report	Where	Remark
Jun 22, 5:30 PM EDT	TSTM WND DMG	Coventry, RI	TREES AND WIRES DOWN ON WATERMAN ROAD
Jun 22, 5:30 PM EDT	HAIL 0.75	Coventry, RI
Jun 22, 5:30 PM EDT	HAIL 1	Coventry, RI
Jun 22, 5:35 PM EDT	TSTM WND DMG	Coventry, RI	TREES AND WIRES DOWN ON MOHAWK STREET...SHADY VALLEY ROAD...NEW DAM ROAD...EAST SHORE AND WINDSOR PARK DRIVES
Jun 22, 5:37 PM EDT	MARINE TSTM WIND 40	East Providence, RI	SABIN POINT
Jun 22, 5:47 PM EDT	TSTM WND DMG	West Warwick, RI	LARGE BRANCHES AND WIRES DOWN ON MAIN STREET...NEW LONDON TURNPIKE AND COWESSET AVE
Jun 22, 6:00 PM EDT	MARINE TSTM WIND 43	Warwick, RI	CONIMICUT LIGHT

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, 9.5 hours before the alert went out and 119 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 83 J/kg
Mixed-layer CIN: -112 J/kg
Mixed-layer LCL: 1837 m above ground
0-6 km bulk shear: 34 kt
0-1 km storm-relative helicity: -4 m²/s²
0-3 km storm-relative helicity: 87 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.

530 
WUUS51 KBOX 222127
SVRBOX
RIC001-003-005-007-009-222230-
/O.NEW.KBOX.SV.W.0021.120622T2127Z-120622T2230Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TAUNTON MA
527 PM EDT FRI JUN 22 2012

THE NATIONAL WEATHER SERVICE IN TAUNTON HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHWESTERN BRISTOL COUNTY IN RHODE ISLAND...
  KENT COUNTY IN RHODE ISLAND...
  THIS INCLUDES THE CITY OF WARWICK...
  NORTHWESTERN NEWPORT COUNTY IN RHODE ISLAND...
  SOUTHERN PROVIDENCE COUNTY IN RHODE ISLAND...
  THIS INCLUDES THE CITY OF PROVIDENCE...
  EXTREME NORTHEASTERN WASHINGTON COUNTY IN RHODE ISLAND...

* UNTIL 630 PM EDT

* AT 522 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
  WEST WARWICK...OR 8 MILES WEST OF WARWICK...AND WAS MOVING EAST AT
  20 MPH.

* SOME LOCATIONS IN THE WARNING INCLUDE...EAST GREENWICH...
  CRANSTON...JOHNSTON AND EAST PROVIDENCE.

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 4161 7134 4165 7137 4166 7140 4163 7139
      4161 7139 4163 7167 4180 7172 4186 7136
      4172 7133 4174 7137 4172 7135 4167 7137
      4166 7133 4160 7130
TIME...MOT...LOC 2127Z 256DEG 19KT 4168 7154

$$

MLD

1 follow-up statement

969 
WWUS51 KBOX 222206
SVSBOX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TAUNTON MA
606 PM EDT FRI JUN 22 2012

RIC001-003-005-007-009-222216-
/O.CAN.KBOX.SV.W.0021.000000T0000Z-120622T2230Z/
NEWPORT RI-BRISTOL RI-PROVIDENCE RI-WASHINGTON RI-KENT RI-
606 PM EDT FRI JUN 22 2012

...THE SEVERE THUNDERSTORM WARNING FOR KENT...EXTREME NORTHEASTERN
WASHINGTON...SOUTHERN PROVIDENCE...EXTREME NORTHWESTERN BRISTOL AND
NORTHWESTERN NEWPORT COUNTIES IN RHODE ISLAND IS CANCELLED...

LAT...LON 4161 7134 4165 7137 4166 7140 4163 7139
      4161 7139 4163 7167 4180 7172 4186 7136
      4172 7133 4174 7137 4172 7135 4167 7137
      4166 7133 4160 7130
TIME...MOT...LOC 2206Z 256DEG 19KT 4173 7127

$$

MLD

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 22, 4:23 PM EDT	Special Weather Statement	BOX	Kent	67 min
Jun 22, 4:57 PM EDT	Special Weather Statement	BOX	Kent	63 min
Jun 22, 5:06 PM EDT	Special Weather Statement	BOX	Providence	54 min
Jun 22, 5:07 PM EDT	Areal Flood Advisory	BOX	Kent, Providence	3 hr
Jun 22, 5:26 PM EDT	Flash Flood Warning	BOX	Bristol, Kent, Providence	3 hr

Nearby

Severe Thunderstorm Warnings in Rhode Island, 2012 Every 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.