Alert archive / Massachusetts / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 43, NWS Boston/Norton, MA

June 9, 2011Cheshire County, Hillsborough County, New Hampshire; 7 counties in Massachusetts

NWS Boston/Norton, MA issued this severe thunderstorm warning at Jun 9, 2011, 4:23 PM EDT for Cheshire County, Hillsborough County, New Hampshire; 7 counties in Massachusetts. It was in force for 67 min. 17 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 9, 2011, 4:23 PM EDT (20:23 UTC)
Expired: Jun 9, 2011, 5:30 PM EDT
In force: 67 min
Issued by: NWS Boston/Norton, MA
Area: Storm-based polygon

Counties Essex County, MA, Franklin County, MA, Hampshire County, MA, Middlesex County, MA, Norfolk County, MA, Suffolk County, MA, Worcester County, MA, Cheshire County, NH, Hillsborough County, NH

The radar

The Boston radar (KBOX), 81 km from the middle of the area, began a volume at 20:23 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, 5:07 PM EDT	TSTM WND DMG	Wayland, MA	TREE DOWN ON SHED ON KNOB HILL ROAD
Jun 9, 5:11 PM EDT	TSTM WND DMG	Lowell, MA	TREES AND WIRES DOWN ON DUNBAR STREET
Jun 9, 5:13 PM EDT	TSTM WND DMG	Southborough, MA	TREES DOWN ON WIRES ON WALNUT STREET
Jun 9, 5:15 PM EDT	TSTM WND DMG	North Andover, MA	TREES AND WIRES DOWN ON ASHLAND STREET
Jun 9, 5:18 PM EDT	TSTM WND DMG	Lynn, MA	TREE DOWN ON CAR ON PARKLAND AVE
Jun 9, 5:18 PM EDT	TSTM WND DMG	Saugus, MA	WIRES DOWN ON CHESTNUT STREET
Jun 9, 5:20 PM EDT	TSTM WND DMG	Lynn, MA	LARGE TREE BRANCH DOWN ON POWER LINES ON LOCUST STREET
Jun 9, 5:20 PM EDT	TSTM WND DMG	Topsfield, MA	TREES AND WIRES DOWN ON RTE 97
Jun 9, 5:21 PM EDT	TSTM WND DMG	Topsfield, MA	TREES AND WIRES DOWN ON RTE 97 ROAD IMPASSABLE
Jun 9, 5:27 PM EDT	TSTM WND DMG	Wenham, MA	TREES DOWN ON PATTY LANE
Jun 9, 5:29 PM EDT	TSTM WND DMG	Danvers, MA	MULTIPLE TREES DOWN ACROSS TOWN
Jun 9, 5:29 PM EDT	TSTM WND DMG	Newbury, MA	TREES DOWN ON PARKER RIVER BRIDGE AND ON RTE 1 SOUTH ACROSS SOUTHBOUND LANES
Jun 9, 5:30 PM EDT	TSTM WND DMG	Manchester, MA	LARGE TREE DOWN ACROSS TRAIN TRACKS ON TUCKS POINT ROAD
Jun 9, 5:31 PM EDT	TSTM WND DMG	Southborough, MA	TREES DOWN ON WORES ON WALNUT STREET
Jun 9, 5:37 PM EDT	TSTM WND DMG	Topsfield, MA	TREES AND WIRES DOWN ON RTE 97
Jun 9, 5:37 PM EDT	TSTM WND DMG	Wenham, MA	TREES DOWN ON PATTY LANE
Jun 9, 5:40 PM EDT	TSTM WND DMG	Peabody, MA	TREE DOWN ON RAINBOW ROAD IN SOUTH PEABODY

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Jun 9, 12:06 PM EDT	Severe Thunderstorm Watch	SPC	8 hr
Jun 9, 2:34 PM EDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Chatham, MA (KCHH), launched 12:00Z, 8.4 hours before the alert went out and 148 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: 47 J/kg
Mixed-layer CIN: -267 J/kg
Mixed-layer LCL: 1937 m above ground
0-6 km bulk shear: 37 kt
0-1 km storm-relative helicity: 4 m²/s²
0-3 km storm-relative helicity: 52 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.

465 
WUUS51 KBOX 092023
SVRBOX
MAC009-011-015-017-021-025-027-NHC005-011-092130-
/O.NEW.KBOX.SV.W.0043.110609T2023Z-110609T2130Z/

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

THE NATIONAL WEATHER SERVICE IN TAUNTON HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHERN WORCESTER COUNTY IN CENTRAL MASSACHUSETTS...
  THIS INCLUDES THE CITIES OF...WORCESTER...LEOMINSTER...FITCHBURG...
  ESSEX COUNTY IN EASTERN MASSACHUSETTS...
  THIS INCLUDES THE CITIES OF...NEWBURYPORT...LYNN...LAWRENCE...
  GLOUCESTER...BEVERLY...
  NORTH CENTRAL NORFOLK COUNTY IN EASTERN MASSACHUSETTS...
  THIS INCLUDES THE CITY OF BROOKLINE...
  SUFFOLK COUNTY IN EASTERN MASSACHUSETTS...
  THIS INCLUDES THE CITY OF BOSTON...
  MIDDLESEX COUNTY IN SOUTHEAST MASSACHUSETTS...
  THIS INCLUDES THE CITIES OF...WALTHAM...SOMERVILLE...NEWTON...
  LOWELL...FRAMINGHAM...CAMBRIDGE...
  EXTREME SOUTHEASTERN CHESHIRE COUNTY IN SOUTHERN NEW HAMPSHIRE...
  EASTERN HILLSBOROUGH COUNTY IN SOUTHERN NEW HAMPSHIRE...
  THIS INCLUDES THE CITIES OF...NASHUA...MANCHESTER...
  EXTREME SOUTHEASTERN FRANKLIN COUNTY IN WESTERN MASSACHUSETTS...
  EAST CENTRAL HAMPSHIRE COUNTY IN WESTERN MASSACHUSETTS...

* UNTIL 530 PM EDT

* AT 424 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING QUARTER SIZE
  HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH.  THESE STORMS WERE
  LOCATED ALONG A LINE EXTENDING FROM MANCHESTER TO HARDWICK...OR
  ALONG A LINE EXTENDING FROM MANCHESTER TO 15 MILES EAST OF
  AMHERST...AND WAS MOVING EAST AT 50 MPH.

* SOME LOCATIONS IN THE WARNING INCLUDE...ASHBY...BARRE...
  HUBBARDSTON...WESTMINSTER...BROOKLINE...MERRIMACK...NEW
  BRAINTREE...TOWNSEND...LITCHFIELD...HOLLIS...OAKHAM...LUNENBURG...
  PRINCETON...PEPPERELL...RUTLAND...HUDSON...SHIRLEY...GROTON...
  PAXTON...DUNSTABLE...STERLING...HOLDEN...AYER...TYNGSBORO...WEST
  BOYLSTON...PELHAM...LANCASTER...CLINTON...HARVARD...BOYLSTON...
  WESTFORD...LITTLETON...BOLTON...DRACUT...BOXBOROUGH...CHELMSFORD...
  BERLIN...SHREWSBURY...METHUEN...ACTON...HAVERHILL...MERRIMAC...
  STOW...NORTHBOROUGH...CARLISLE...TEWKSBURY...NEWBURY...WEST
  NEWBURY...AMESBURY...NORTH ANDOVER...MAYNARD...MARLBOROUGH...
  GROVELAND...ANDOVER...BILLERICA...WESTBOROUGH...CONCORD...
  GEORGETOWN...SOUTHBOROUGH...SALISBURY...BEDFORD...WILMINGTON...
  SUDBURY...BURLINGTON...BOXFORD...WAYLAND...LINCOLN...LEXINGTON...
  ASHLAND...READING...NORTH READING...ROWLEY...MIDDLETON...WOBURN...
  TOPSFIELD...WESTON...WINCHESTER...LYNNFIELD...NATICK...WAKEFIELD...
  STONEHAM...ARLINGTON...IPSWICH...WELLESLEY...DANVERS...BELMONT...
  SHERBORN...HAMILTON...WATERTOWN...PEABODY...MEDFORD...WENHAM...
  MELROSE...SAUGUS...MALDEN...NEEDHAM...DOVER...EVERETT...ESSEX...
  CHELSEA...SALEM...REVERE...DEDHAM...WESTWOOD...MANCHESTER...
  WINTHROP...ROCKPORT...NAHANT...MARBLEHEAD AND SWAMPSCOTT.

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.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 800 PM EDT
THURSDAY EVENING FOR SOUTHERN NEW HAMPSHIRE. A SEVERE THUNDERSTORM
WATCH ALSO REMAINS IN EFFECT UNTIL 1000 PM EDT THURSDAY EVENING FOR
NORTHERN CONNECTICUT AND MASSACHUSETTS AND CENTRAL RHODE ISLAND.

&&

LAT...LON 4301 7139 4291 7144 4278 7134 4274 7119
      4282 7116 4289 7090 4287 7081 4269 7077
      4266 7059 4250 7081 4254 7084 4248 7082
      4244 7096 4236 7097 4219 7117 4231 7245
      4307 7152
TIME...MOT...LOC 2023Z 280DEG 42KT 4303 7141 4236 7224

$$

KJC

2 follow-up statements

355 
WWUS51 KBOX 092056
SVSBOX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TAUNTON MA
456 PM EDT THU JUN 9 2011

MAC011-015-NHC005-092107-
/O.CAN.KBOX.SV.W.0043.000000T0000Z-110609T2130Z/
CHESHIRE NH-FRANKLIN MA-HAMPSHIRE MA-
456 PM EDT THU JUN 9 2011

...THE SEVERE THUNDERSTORM WARNING FOR EAST CENTRAL HAMPSHIRE...
EXTREME SOUTHEASTERN FRANKLIN AND EXTREME SOUTHEASTERN CHESHIRE
COUNTIES IS CANCELLED...

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 800 PM EDT
THURSDAY EVENING FOR SOUTHERN NEW HAMPSHIRE. A SEVERE THUNDERSTORM
WATCH ALSO REMAINS IN EFFECT UNTIL 1000 PM EDT THURSDAY EVENING FOR
NORTHERN CONNECTICUT AND MASSACHUSETTS AND CENTRAL RHODE ISLAND.

LAT...LON 4231 7200 4278 7134 4274 7119 4282 7116
      4289 7090 4287 7081 4269 7077 4266 7059
      4250 7081 4254 7084 4248 7082 4244 7096
      4236 7097 4219 7117
TIME...MOT...LOC 2057Z 280DEG 42KT 4284 7109 4230 7176

$$

MAC009-017-021-025-027-NHC011-092130-
/O.CON.KBOX.SV.W.0043.000000T0000Z-110609T2130Z/
MIDDLESEX MA-WORCESTER MA-NORFOLK MA-HILLSBOROUGH NH-ESSEX MA-
SUFFOLK MA-
456 PM EDT THU JUN 9 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 530 PM EDT
FOR SUFFOLK...ESSEX...SOUTHEASTERN HILLSBOROUGH...NORTH CENTRAL
NORFOLK...EAST CENTRAL WORCESTER AND MIDDLESEX COUNTIES...

AT 455 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING QUARTER
SIZE HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH.  THESE STORMS
WERE LOCATED ALONG A LINE EXTENDING FROM HAVERHILL TO SHREWSBURY...OR
ALONG A LINE EXTENDING FROM 6 MILES NORTHEAST OF SALEM TO
WORCESTER...MOVING EAST AT 50 MPH.

OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
BERLIN...METHUEN...ACTON...HUDSON...MERRIMAC...STOW...NORTHBOROUGH...
LAWRENCE...CARLISLE...TEWKSBURY...NEWBURY...WEST NEWBURY...NORTH
ANDOVER...MAYNARD...MARLBOROUGH...GROVELAND...AMESBURY...
WESTBOROUGH...ANDOVER...BILLERICA...CONCORD...NEWBURYPORT...
GEORGETOWN...SOUTHBOROUGH...BEDFORD...WILMINGTON...SALISBURY...
SUDBURY...BOXFORD...BURLINGTON...WAYLAND...LINCOLN...FRAMINGHAM...
ASHLAND...LEXINGTON...READING...ROWLEY...NORTH READING...MIDDLETON...
WOBURN...TOPSFIELD...WALTHAM...WESTON...WINCHESTER...LYNNFIELD...
NATICK...WAKEFIELD...STONEHAM...ARLINGTON...IPSWICH...SHERBORN...
WELLESLEY...DANVERS...BELMONT...HAMILTON...WATERTOWN...PEABODY...
MEDFORD...WENHAM...MELROSE...NEWTON...SAUGUS...MALDEN...NEEDHAM...
SOMERVILLE...CAMBRIDGE...BRIGHTON...DOVER...ALLSTON...EVERETT...
ESSEX...LYNN...CHARLESTOWN...BROOKLINE...BEVERLY...WINTHROP...
WESTWOOD...WEST ROXBURY...SWAMPSCOTT...SOUTH BOSTON...SALEM...
ROSLINDALE...ROCKPORT...REVERE...MATTAPAN...MARBLEHEAD...
MANCHESTER...HYDE PARK...GLOUCESTER...FOREST HILLS...JAMAICA PLAIN...
EAST BOSTON...DORCHESTER...DEDHAM...CHELSEA AND BOSTON

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 800 PM EDT
THURSDAY EVENING FOR SOUTHERN NEW HAMPSHIRE. A SEVERE THUNDERSTORM
WATCH ALSO REMAINS IN EFFECT UNTIL 1000 PM EDT THURSDAY EVENING FOR
NORTHERN CONNECTICUT AND MASSACHUSETTS AND CENTRAL RHODE ISLAND.

&&

LAT...LON 4231 7200 4278 7134 4274 7119 4282 7116
      4289 7090 4287 7081 4269 7077 4266 7059
      4250 7081 4254 7084 4248 7082 4244 7096
      4236 7097 4219 7117
TIME...MOT...LOC 2057Z 280DEG 42KT 4284 7109 4230 7176

$$

KJC

409 
WWUS51 KBOX 092126
SVSBOX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TAUNTON MA
526 PM EDT THU JUN 9 2011

MAC009-017-021-025-027-NHC011-092136-
/O.EXP.KBOX.SV.W.0043.000000T0000Z-110609T2130Z/
MIDDLESEX MA-WORCESTER MA-NORFOLK MA-HILLSBOROUGH NH-ESSEX MA-
SUFFOLK MA-
526 PM EDT THU JUN 9 2011

...THE SEVERE THUNDERSTORM WARNING FOR SUFFOLK...ESSEX...SOUTHEASTERN
HILLSBOROUGH...NORTH CENTRAL NORFOLK...EAST CENTRAL WORCESTER AND
MIDDLESEX COUNTIES WILL EXPIRE AT 530 PM EDT...

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 800 PM EDT
THURSDAY EVENING FOR SOUTHERN NEW HAMPSHIRE. A SEVERE THUNDERSTORM
WATCH ALSO REMAINS IN EFFECT UNTIL 1000 PM EDT THURSDAY EVENING FOR
NORTHERN CONNECTICUT AND MASSACHUSETTS AND CENTRAL RHODE ISLAND.

LAT...LON 4231 7200 4278 7134 4274 7119 4282 7116
      4289 7090 4287 7081 4269 7077 4266 7059
      4250 7081 4254 7084 4248 7082 4244 7096
      4236 7097 4219 7117
TIME...MOT...LOC 2126Z 280DEG 42KT 4278 7063 4224 7131

$$

KJC

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 8, 8:37 PM EDT	Special Weather Statement	BOX	Cheshire, Hillsborough	23 min
Jun 9, 2:47 PM EDT	Special Weather Statement	BOX	Cheshire	58 min
Jun 9, 3:03 PM EDT	Severe Thunderstorm Warning	BOX	Cheshire, Hillsborough	57 min
Jun 9, 3:06 PM EDT	Severe Thunderstorm Warning	BOX	Cheshire	54 min
Jun 9, 3:55 PM EDT	Severe Thunderstorm Warning	BOX	Cheshire, Hillsborough	65 min
Jun 8, 8:12 PM EDT	Severe Thunderstorm Warning	BOX	Franklin, Hampden, Hampshire	48 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, 2:22 AM EDT	Severe Thunderstorm Warning	BOX	Bristol, Plymouth	23 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, 3:57 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, 4:54 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

Nearby

Severe Thunderstorm Warnings in Massachusetts, 2011 Severe Thunderstorm Warnings in New Hampshire, 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.