Alert archive / Massachusetts / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 35, NWS Boston/Norton, MA

June 9, 2011Bristol County, Plymouth County, Massachusetts; Bristol County, Newport County, Rhode Island

NWS Boston/Norton, MA issued this severe thunderstorm warning at Jun 9, 2011, 2:22 AM EDT for Bristol County, Plymouth County, Massachusetts; Bristol County, Newport County, Rhode Island. It was in force for 23 min. 1 report 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 9, 2011, 2:22 AM EDT (06:22 UTC)
Expired: Jun 9, 2011, 2:45 AM EDT
In force: 23 min
Issued by: NWS Boston/Norton, MA
Area: Storm-based polygon

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

The radar

The Boston radar (KBOX), 37 km from the middle of the area, began a volume at 06:24 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 9, 2:25 AM EDT	TSTM WND DMG	Fall River, MA	TREE DOWN IN AREA OF MADISON STREET BLOCKING THE ROADWAY

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 00:00Z, 6.4 hours before the alert went out and 86 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: 522 J/kg
Mixed-layer CIN: -245 J/kg
Mixed-layer LCL: 1312 m above ground
0-6 km bulk shear: 31 kt
0-1 km storm-relative helicity: 63 m²/s²
0-3 km storm-relative helicity: 131 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.1

Open this sounding in Storm Lab

The text

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

353 
WUUS51 KBOX 090622
SVRBOX
MAC005-023-RIC001-005-090645-
/O.NEW.KBOX.SV.W.0035.110609T0622Z-110609T0645Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TAUNTON MA
222 AM EDT THU JUN 9 2011

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...
  SOUTHERN BRISTOL COUNTY IN SOUTHEAST MASSACHUSETTS...
  THIS INCLUDES THE CITIES OF...NEW BEDFORD...FALL RIVER...
  SOUTH CENTRAL PLYMOUTH COUNTY IN SOUTHEAST MASSACHUSETTS...

* UNTIL 245 AM EDT

* AT 219 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING LARGE DAMAGING HAIL UP TO
  GOLF BALL SIZE.  THIS STORM WAS LOCATED NEAR BARRINGTON...AND WAS
  MOVING EAST AT 50 MPH.

* SOME LOCATIONS IN THE WARNING INCLUDE...SWANSEA...SOMERSET...
  TIVERTON...WESTPORT...DARTMOUTH...ACUSHNET...ROCHESTER...
  MATTAPOISETT AND MARION.

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.

THIS STORM HAS HAD A HISTORY OF PRODUCING GOLF BALL SIZED HAIL ALONG 
WITH WIND GUSTS IN EXCESS OF 50 MPH. 

&&

LAT...LON 4165 7124 4170 7119 4171 7122 4167 7123
      4166 7126 4172 7134 4182 7129 4173 7074
      4165 7075 4165 7079 4161 7080 4162 7085
      4159 7081 4158 7083 4157 7086 4162 7089
      4159 7089 4157 7093 4154 7092 4150 7102
TIME...MOT...LOC 0622Z 292DEG 45KT 4175 7127

$$

SIPPRELL

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 8, 8:12 PM EDT	Severe Thunderstorm Warning	BOX	Franklin, Hampden, Hampshire	48 min
Jun 8, 8:37 PM EDT	Special Weather Statement	BOX	Franklin	23 min
Jun 8, 8:56 PM EDT	Severe Thunderstorm Warning	BOX	Franklin, Hampden, Hampshire, Worcester	49 min
Jun 8, 9:42 PM EDT	Severe Thunderstorm Warning	BOX	Middlesex, Norfolk, Worcester	48 min
Jun 8, 10:21 PM EDT	Severe Thunderstorm Warning	BOX	Bristol, Norfolk, Plymouth	24 min
Jun 8, 10:33 PM EDT	Severe Thunderstorm Warning	BOX	Bristol, Plymouth	42 min
Jun 8, 10:34 PM EDT	Special Marine Warning	BOX		41 min
Jun 8, 10:41 PM EDT	Special Marine Warning	BOX		49 min
Jun 8, 10:51 PM EDT	Special Marine Warning	BOX		39 min
Jun 8, 10:52 PM EDT	Severe Thunderstorm Warning	BOX	Barnstable, Bristol, Dukes, Plymouth	38 min
Jun 8, 11:17 PM EDT	Special Marine Warning	BOX		58 min
Jun 9, 12:19 AM EDT	Special Marine Warning	BOX		41 min
Jun 9, 12:37 AM EDT	Severe Thunderstorm Warning	BOX	Hampden, Hampshire	38 min
Jun 9, 1:04 AM EDT	Severe Thunderstorm Warning	BOX	Hampden, Worcester	41 min
Jun 9, 1:40 AM EDT	Severe Thunderstorm Warning	BOX	Bristol	50 min
Jun 9, 2:12 AM EDT	Special Marine Warning	BOX		48 min
Jun 9, 2:36 AM EDT	Special Marine Warning	BOX		54 min
Jun 9, 2:42 AM EDT	Severe Thunderstorm Warning	BOX	Barnstable, Bristol, Dukes, Plymouth	27 min
Jun 9, 2:53 AM EDT	Special Marine Warning	BOX		52 min
Jun 9, 8:38 AM EDT	Special Weather Statement	BOX	Norfolk, Plymouth	52 min
Jun 9, 10:21 AM EDT	Special Weather Statement	BOX	Hampshire	39 min
Jun 9, 10:24 AM EDT	Severe Thunderstorm Warning	BOX	Hampden, Hampshire	22 min
Jun 9, 3:00 PM EDT	Special Weather Statement	BOX	Franklin, Hampshire	90 min
Jun 9, 3:06 PM EDT	Severe Thunderstorm Warning	BOX	Franklin, Hampshire	54 min
Jun 9, 3:55 PM EDT	Severe Thunderstorm Warning	BOX	Franklin, Hampshire, Middlesex, Worcester	65 min
Jun 9, 3:57 PM EDT	Special Marine Warning	BOX		108 min
Jun 9, 4:00 PM EDT	Severe Thunderstorm Warning	BOX	Franklin, Hampden, Hampshire, Worcester	60 min
Jun 9, 4:23 PM EDT	Severe Thunderstorm Warning	BOX	Essex, Franklin, Hampshire, Middlesex, Norfolk, Suffolk and 1 more	67 min
Jun 9, 4:54 PM EDT	Severe Thunderstorm Warning	BOX	Hampden, Hampshire, Middlesex, Worcester	54 min
Jun 9, 5:00 PM EDT	Special Marine Warning	BOX		2 hr
Jun 9, 5:24 PM EDT	Severe Thunderstorm Warning	BOX	Barnstable, Bristol, Essex, Middlesex, Norfolk, Plymouth and 2 more	66 min
Jun 9, 5:38 PM EDT	Special Marine Warning	BOX		112 min
Jun 9, 5:52 PM EDT	Severe Thunderstorm Warning	BOX	Bristol	53 min
Jun 9, 6:13 PM EDT	Severe Thunderstorm Warning	BOX	Barnstable, Bristol, Plymouth	62 min
Jun 9, 6:14 PM EDT	Special Marine Warning	BOX		2 hr
Jun 9, 6:49 PM EDT	Severe Thunderstorm Warning	BOX	Barnstable, Dukes, Nantucket	56 min
Jun 8, 10:54 PM EDT	Special Weather Statement	BOX	Washington	36 min
Jun 9, 2:08 AM EDT	Special Weather Statement	BOX	Kent, Newport	67 min
Jun 9, 6:54 AM EDT	Severe Thunderstorm Warning	BOX	Kent, Providence, Washington	51 min
Jun 9, 6:39 PM EDT	Special Weather Statement	BOX	Washington	36 min

Nearby

Severe Thunderstorm Warnings in Massachusetts, 2011 Severe Thunderstorm Warnings in Rhode Island, 2011 Every severe thunderstorm warning in 2011

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.