Alert archive / Massachusetts / Severe Thunderstorm Warnings in 2016

Severe Thunderstorm Warning 72, NWS Boston/Norton, MA

July 23, 2016Essex County, Middlesex County, Worcester County, Massachusetts

NWS Boston/Norton, MA issued this severe thunderstorm warning at Jul 23, 2016, 6:38 PM EDT for Essex County, Middlesex County, Worcester County, Massachusetts. It was in force for 52 min. 23 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
Jul 23, 2016, 6:38 PM EDT (22:38 UTC)
Expired
Jul 23, 2016, 7:30 PM EDT
In force
52 min
Issued by
NWS Boston/Norton, MA
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

Counties Essex County, MA, Middlesex County, MA, Worcester County, MA

The radar

The Boston radar (KBOX), 87 km from the middle of the area, began a volume at 22:39 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

TimeReportWhereRemark
Jul 23, 6:50 PM EDTTSTM WND DMGHaverhill, MATREE DOWN AND TRANSFORMER BLEW ON LIBERTY STREET.
Jul 23, 6:50 PM EDTTSTM WND DMGMethuen, MATREE DOWN IN THE RIGHT LANE OF 213 WESTBOUND.
Jul 23, 6:52 PM EDTTSTM WND DMGLowell, MANUMEROUS TREES DOWN THROUGHOUT TOWN...INCLUDING A TREE DOWN ONTO A CAR. WIRES DOWN ON STEVEN STREET AND FAIRMONT STREET. LARGE TREE DOWN ON WIRES ON GREENDALE AVENUE. WIRES DOWN ON EMERY AVENUE.
Jul 23, 6:52 PM EDTTSTM WND DMGLowell, MAWIRES DOWN ON STEVEN STREET AND FAIRMONT STREET. LARGE TREE DOWN ON WIRES ON GREENDALE AVENUE. WIRES DOWN ON EMERY AVENUE.
Jul 23, 6:54 PM EDTTSTM WND DMGWestford, MATWO LARGE TREES DOWN.
Jul 23, 6:54 PM EDTTSTM WND DMGWest Newbury, MASEVERAL TREES AND WIRES DOWN ON MAIN STREET AND MECHANIC STREET.
Jul 23, 6:55 PM EDTTSTM WND DMGShirley, MAPOWER LINES DOWN ON COLD SPRING AT GRANITEVILLE.
Jul 23, 6:59 PM EDTTSTM WND DMGBillerica, MATREE DOWN ON RIVER STREET. LARGE BRANCH DOWN ON WIRES ON CONCORD STREET.
Jul 23, 7:00 PM EDTTSTM WND DMGChelmsford, MATREE DOWN IN CHELMSFORD CENTER DAMAGING A CAR SO IT HAD TO BE TOWED. TREE DOWN ON WIRES ON SPAULDING ROAD. TREE DOWN ON WARREN AVENUE. TREE DOWN ON CAR ON BOSTON ROAD.
Jul 23, 7:00 PM EDTTSTM WND DMGChelmsford, MATREE DOWN ON WIRES ON SPAULDING ROAD. TREE DOWN ON WARREN AVENUE. TREE DOWN ON CAR ON BOSTON ROAD.
Jul 23, 7:00 PM EDTTSTM WND DMGChelmsford, MAPOWER LINES AND A TREE DOWN ON JONATHAN LANE.
Jul 23, 7:00 PM EDTTSTM WND DMGNorth Reading, MATREE DOWN ON NORTH STREET.
Jul 23, 7:02 PM EDTTSTM WND DMGBoxford, MATREES DOWN ON IPSWICH ROAD...BAREHILL ROAD...WHITNEY ROAD. MOTORCYCLIST DOWN ON DOWNED WIRES ON GEORGETOWN ROAD NEAR HILLSIDE ROAD.
Jul 23, 7:05 PM EDTTSTM WND DMGFitchburg, MATREE DOWN BLOCKING HIGH STREET.
Jul 23, 7:08 PM EDTTSTM WND DMGLeominster, MAWIRES DOWN AND A TREE UPROOTED.
Jul 23, 7:09 PM EDTTSTM WND DMGBillerica, MALARGE BRANCH DOWN ON CONCORD STREET.
Jul 23, 7:09 PM EDTTSTM WND DMGWest Townsend, MABIG TREE DOWN.
Jul 23, 7:11 PM EDTTSTM WND DMGGroton, MATREES AND POWER LINES DOWN ON LOWELL ROAD.
Jul 23, 7:15 PM EDTTSTM WND DMGLittleton, MALARGE TREE AND POWER LINES DOWN IN WYCHWOOD HEIGHTS.
Jul 23, 7:27 PM EDTTSTM WND DMGTopsfield, MANUMEROUS TREES AND WIRES DOWN...INCLUDING VALLEY ROAD AND ROUTE 97.
Jul 23, 7:30 PM EDTTSTM WND DMGLeominster, MATREE DOWN BLOCKING WILLOW STREET.
Jul 23, 7:32 PM EDTTSTM WND DMGLeominster, MATREE DOWN ON WILLOW STREET.
Jul 23, 7:32 PM EDTTSTM WND DMGReading, MALARGE BRANCH DOWN.

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.

IssuedProductOfficeLasted
Jul 23, 6:04 PM EDTSevere Thunderstorm WatchSPC2 hr

The nearest sounding before it

Gray, ME (KGYX), launched 12:00Z, 10.6 hours before the alert went out and 141 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, Gray, ME at 12:00Z on 2016-07-23Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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, Gray, ME at 12:00Z on 2016-07-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 2 square meters per square second.19395878Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1588 m above ground
0-6 km bulk shear
34 kt
0-1 km storm-relative helicity
2 m²/s²
0-3 km storm-relative helicity
73 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

370 
WUUS51 KBOX 232238
SVRBOX
MAC009-017-027-232330-
/O.NEW.KBOX.SV.W.0072.160723T2238Z-160723T2330Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TAUNTON MA
638 PM EDT SAT JUL 23 2016

THE NATIONAL WEATHER SERVICE IN TAUNTON HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  ESSEX COUNTY IN NORTHEASTERN MASSACHUSETTS...
  NORTHEASTERN WORCESTER COUNTY IN CENTRAL MASSACHUSETTS...
  NORTHERN MIDDLESEX COUNTY IN NORTHEASTERN MASSACHUSETTS...

* UNTIL 730 PM EDT

* AT 636 PM EDT...A LINE OF SEVERE THUNDERSTORMS IN SOUTHERN NEW
  HAMPSHIRE WILL BE DROPPING SOUTHEAST INTO NORTH CENTRAL AND
  NORTHEAST MASSACHUSETTS THROUGH 730 PM.

  HAZARD...60 MPH WIND GUSTS. 

  SOURCE...SPOTTER REPORTING NUMEROUS REPORTS OF WIND DAMAGE IN
           SOUTHERN NEW HAMPSHIRE.

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

* LOCATIONS IMPACTED INCLUDE...
  LOWELL...NASHUA...LAWRENCE...HAVERHILL...PEABODY...METHUEN...
  LEOMINSTER...FITCHBURG...BILLERICA...BEVERLY...CHELMSFORD...
  ANDOVER...DRACUT...TEWKSBURY...GLOUCESTER...NORTH ANDOVER...
  DANVERS...READING...BURLINGTON AND HUDSON.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

THIS IS A DANGEROUS SITUATION. THIS STORM IS PRODUCING WIDESPREAD
WIND DAMAGE ACROSS SOUTHERN NEW HAMPSHIRE. SEEK SHELTER NOW INSIDE A
STURDY STRUCTURE AND STAY AWAY FROM WINDOWS!

LARGE HAIL AND DAMAGING WINDS AND CONTINUOUS CLOUD TO GROUND
LIGHTNING IS OCCURRING WITH THIS STORM. MOVE INDOORS IMMEDIATELY.
LIGHTNING IS ONE OF NATURE'S LEADING KILLERS. REMEMBER...IF YOU CAN
HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE STRUCK BY LIGHTNING.

&&

LAT...LON 4287 7082 4281 7087 4281 7081 4270 7077
      4270 7078 4277 7082 4270 7083 4267 7073
      4264 7076 4269 7063 4264 7059 4255 7080
      4248 7200 4272 7220 4270 7129 4274 7118
      4282 7115 4281 7107 4286 7103 4289 7090
TIME...MOT...LOC 2236Z 306DEG 26KT 4281 7159 

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

FRANK

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 22, 8:15 PM EDTSpecial Marine WarningBOX90 min
Jul 22, 8:25 PM EDTSevere Thunderstorm WarningBOXBristol, Norfolk65 min
Jul 22, 8:31 PM EDTSevere Thunderstorm WarningBOXMiddlesex, Norfolk, Plymouth, Suffolk59 min
Jul 22, 8:44 PM EDTSpecial Marine WarningBOX61 min
Jul 22, 8:44 PM EDTSevere Thunderstorm WarningBOXBristol46 min
Jul 22, 8:49 PM EDTSevere Thunderstorm WarningBOXBristol, Plymouth56 min
Jul 22, 8:53 PM EDTSpecial Marine WarningBOX52 min
Jul 22, 9:04 PM EDTSevere Thunderstorm WarningBOXPlymouth41 min
Jul 22, 9:27 PM EDTSpecial Weather StatementBOXBristol48 min
Jul 22, 9:40 PM EDTSevere Thunderstorm WarningBOXBarnstable, Plymouth35 min
Jul 22, 9:42 PM EDTSpecial Marine WarningBOX48 min
Jul 22, 10:05 PM EDTSevere Thunderstorm WarningBOXBarnstable40 min
Jul 22, 10:09 PM EDTSpecial Marine WarningBOX66 min
Jul 22, 10:15 PM EDTSpecial Marine WarningBOX60 min
Jul 22, 10:25 PM EDTSevere Thunderstorm WarningBOXBristol65 min
Jul 22, 10:40 PM EDTSpecial Marine WarningBOX65 min
Jul 22, 10:46 PM EDTSpecial Marine WarningBOX59 min
Jul 22, 11:06 PM EDTSevere Thunderstorm WarningBOXBristol54 min
Jul 22, 11:14 PM EDTSevere Thunderstorm WarningBOXBarnstable46 min
Jul 22, 11:37 PM EDTSpecial Marine WarningBOX83 min
Jul 22, 11:39 PM EDTSpecial Marine WarningBOX66 min
Jul 22, 11:55 PM EDTSevere Thunderstorm WarningBOXBarnstable, Bristol, Dukes, Plymouth50 min
Jul 23, 12:46 AM EDTSevere Thunderstorm WarningBOXDukes, Nantucket44 min
Jul 23, 1:10 AM EDTSpecial Weather StatementBOXBristol50 min
Jul 23, 1:41 AM EDTSpecial Weather StatementBOXBarnstable, Dukes, Nantucket94 min
Jul 23, 5:36 PM EDTSpecial Weather StatementBOXSuffolk39 min
Jul 23, 5:43 PM EDTSpecial Weather StatementBOXSuffolk32 min
Jul 23, 5:46 PM EDTSevere Thunderstorm WarningBOXEssex, Middlesex, Suffolk44 min
Jul 23, 5:52 PM EDTSpecial Marine WarningBOX38 min
Jul 23, 6:01 PM EDTSpecial Weather StatementBOXNorfolk44 min
Jul 23, 6:22 PM EDTSpecial Marine WarningBOX38 min
Jul 23, 6:27 PM EDTSpecial Weather StatementBOXSuffolk48 min
Jul 23, 6:46 PM EDTSpecial Marine WarningBOX119 min
Jul 23, 6:52 PM EDTSevere Thunderstorm WarningBOXFranklin38 min
Jul 23, 7:06 PM EDTSevere Thunderstorm WarningBOXEssex, Middlesex, Norfolk, Suffolk, Worcester54 min
Jul 23, 7:15 PM EDTSevere Thunderstorm WarningBOXFranklin, Hampden, Hampshire, Worcester60 min
Jul 23, 7:29 PM EDTSevere Thunderstorm WarningBOXEssex, Middlesex, Worcester31 min
Jul 23, 7:35 PM EDTSpecial Marine WarningBOX55 min
Jul 23, 7:46 PM EDTSpecial Marine WarningBOX59 min
Jul 23, 7:50 PM EDTSpecial Weather StatementBOXBristol40 min
Jul 23, 7:53 PM EDTSpecial Marine WarningBOX67 min
Jul 23, 7:54 PM EDTSpecial Weather StatementBOXBristol, Norfolk51 min
Jul 23, 7:57 PM EDTSpecial Weather StatementBOXBristol, Norfolk48 min

Nearby

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