Alert archive / Massachusetts / Severe Thunderstorm Warnings in 2016

Severe Thunderstorm Warning 48, NWS Boston/Norton, MA

July 22, 2016Hampden County, Hampshire County, Worcester County, Massachusetts

NWS Boston/Norton, MA issued this severe thunderstorm warning at Jul 22, 2016, 6:36 PM EDT for Hampden County, Hampshire County, Worcester County, Massachusetts. It was in force for 39 min. 3 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 22, 2016, 6:36 PM EDT (22:36 UTC)
Expired: Jul 22, 2016, 7:15 PM EDT
In force: 39 min
Issued by: NWS Boston/Norton, MA
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Hampden County, MA, Hampshire County, MA, Worcester County, MA

The radar

The Boston radar (KBOX), 110 km from the middle of the area, began a volume at 22:37 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
Jul 22, 6:40 PM EDT	TSTM WND DMG	Hatfield, MA	LARGE TREE FELL ON HOUSE ON ELM ST.
Jul 22, 6:43 PM EDT	TSTM WND DMG	Hadley, MA	TREES AND WIRES DOWN ON ROCKY HILL RD.
Jul 22, 6:45 PM EDT	TSTM WND DMG	Hadley, MA	TREES AND WIRES DOWN ON ROCKY HILL RD.

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

The nearest sounding before it

Albany, NY (KALY), launched 12:00Z, 10.6 hours before the alert went out and 126 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1498 m above ground
0-6 km bulk shear: 40 kt
0-1 km storm-relative helicity: 299 m²/s²
0-3 km storm-relative helicity: 262 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

470 
WUUS51 KBOX 222236
SVRBOX
MAC013-015-027-222315-
/O.NEW.KBOX.SV.W.0048.160722T2236Z-160722T2315Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TAUNTON MA
636 PM EDT FRI JUL 22 2016

THE NATIONAL WEATHER SERVICE IN TAUNTON HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHEASTERN HAMPSHIRE COUNTY IN WESTERN MASSACHUSETTS...
  NORTHEASTERN HAMPDEN COUNTY IN WESTERN MASSACHUSETTS...
  SOUTHWESTERN WORCESTER COUNTY IN CENTRAL MASSACHUSETTS...

* UNTIL 715 PM EDT

* AT 636 PM EDT...A SEVERE THUNDERSTORM WAS LOCATED NEAR HADLEY...OR
  NEAR NORTHAMPTON...MOVING EAST AT 35 MPH.

  HAZARD...60 MPH WIND GUSTS AND QUARTER SIZE HAIL. 

  SOURCE...RADAR INDICATED. 

  IMPACT...HAIL DAMAGE TO VEHICLES IS EXPECTED. EXPECT WIND DAMAGE 
           TO ROOFS...SIDING...AND TREES. 

* THIS SEVERE THUNDERSTORM WILL BE NEAR...
  GRANBY AROUND 650 PM EDT. BELCHERTOWN AND PELHAM AROUND 655 PM
  EDT. LUDLOW AND WILBRAHAM AROUND 700 PM EDT. MONSON AROUND 705 PM
  EDT. PALMER AROUND 710 PM EDT. WARREN...WEST
  BROOKFIELD...BRIMFIELD...BROOKFIELD...HOLLAND AND WALES AROUND 715
  PM EDT. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

THIS IS A POTENTIALLY DEADLY STORM. SEEK SHELTER IN AN INTERIOR ROOM
ON THE LOWEST FLOOR OF A WELL-BUILT STRUCTURE. ABANDON VEHICLES IN
SEARCH OF A MORE SUBSTANTIAL PERMANENT STRUCTURE. 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 4241 7263 4235 7236 4230 7236 4234 7231
      4227 7198 4203 7209 4224 7273
TIME...MOT...LOC 2236Z 291DEG 29KT 4231 7258 

HAIL...1.00IN
WIND...60MPH
 
$$

FRANK

3 follow-up statements

326 
WWUS51 KBOX 222248
SVSBOX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TAUNTON MA
648 PM EDT FRI JUL 22 2016

MAC013-015-027-222315-
/O.CON.KBOX.SV.W.0048.000000T0000Z-160722T2315Z/
HAMPSHIRE MA-HAMPDEN MA-WORCESTER MA-
648 PM EDT FRI JUL 22 2016

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 715 PM EDT
FOR SOUTHEASTERN HAMPSHIRE...NORTHEASTERN HAMPDEN AND SOUTHWESTERN
WORCESTER COUNTIES...

AT 646 PM EDT...A SEVERE THUNDERSTORM WAS LOCATED OVER
AMHERST...MOVING EAST AT 35 MPH.

HAZARD...60 MPH WIND GUSTS AND QUARTER SIZE HAIL. 

SOURCE...RADAR INDICATED. 

IMPACT...HAIL DAMAGE TO VEHICLES IS EXPECTED. EXPECT WIND DAMAGE TO 
         ROOFS...SIDING...AND TREES. 

THIS SEVERE STORM WILL BE NEAR...
  BELCHERTOWN AND PELHAM AROUND 700 PM EDT. 
  WARE AROUND 705 PM EDT. 
  PALMER AND WARREN AROUND 710 PM EDT. 
  NORTH BROOKFIELD...WEST BROOKFIELD...BROOKFIELD...HARDWICK AND NEW 
  BRAINTREE AROUND 715 PM EDT. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

THIS IS A POTENTIALLY DEADLY STORM. SEEK SHELTER IN AN INTERIOR ROOM
ON THE LOWEST FLOOR OF A WELL-BUILT STRUCTURE. ABANDON VEHICLES IN
SEARCH OF A MORE SUBSTANTIAL PERMANENT STRUCTURE. STAY AWAY FROM
WINDOWS.

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 4239 7254 4235 7236 4230 7236 4234 7231
      4227 7198 4203 7209 4221 7264
TIME...MOT...LOC 2246Z 278DEG 35KT 4234 7250 

HAIL...1.00IN
WIND...60MPH
 
$$

FRANK

240 
WWUS51 KBOX 222256
SVSBOX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TAUNTON MA
656 PM EDT FRI JUL 22 2016

MAC013-015-027-222315-
/O.CON.KBOX.SV.W.0048.000000T0000Z-160722T2315Z/
HAMPSHIRE MA-HAMPDEN MA-WORCESTER MA-
656 PM EDT FRI JUL 22 2016

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 715 PM EDT
FOR SOUTHEASTERN HAMPSHIRE...EAST CENTRAL HAMPDEN AND SOUTHWESTERN
WORCESTER COUNTIES...

AT 655 PM EDT...A SEVERE THUNDERSTORM WAS LOCATED OVER
BELCHERTOWN...OR NEAR AMHERST...MOVING EAST AT 30 MPH.

HAZARD...60 MPH WIND GUSTS AND QUARTER SIZE HAIL. 

SOURCE...RADAR INDICATED. 

IMPACT...HAIL DAMAGE TO VEHICLES IS EXPECTED. EXPECT WIND DAMAGE TO 
         ROOFS...SIDING...AND TREES. 

THIS SEVERE STORM WILL BE NEAR...  WARE AROUND 705 PM EDT.  
PALMER...WARREN...WEST BROOKFIELD...BRIMFIELD AND BROOKFIELD AROUND 
 715 PM EDT. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

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 4235 7247 4235 7236 4230 7236 4234 7231
      4227 7198 4203 7209 4218 7254
TIME...MOT...LOC 2255Z 291DEG 29KT 4231 7240 

HAIL...1.00IN
WIND...60MPH
 
$$

FRANK

139 
WWUS51 KBOX 222303
SVSBOX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TAUNTON MA
703 PM EDT FRI JUL 22 2016

MAC013-015-027-222315-
/O.CON.KBOX.SV.W.0048.000000T0000Z-160722T2315Z/
HAMPSHIRE MA-HAMPDEN MA-WORCESTER MA-
703 PM EDT FRI JUL 22 2016

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 715 PM EDT
FOR SOUTHEASTERN HAMPSHIRE...EAST CENTRAL HAMPDEN AND SOUTHWESTERN
WORCESTER COUNTIES...

AT 703 PM EDT...A SEVERE THUNDERSTORM WAS LOCATED OVER WARE...OR 11
MILES SOUTHEAST OF AMHERST...MOVING EAST AT 30 MPH.

HAZARD...60 MPH WIND GUSTS AND PENNY SIZE HAIL. 

SOURCE...RADAR INDICATED. 

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

THIS SEVERE STORM WILL BE NEAR...
  WARREN...WEST BROOKFIELD...BRIMFIELD AND BROOKFIELD AROUND 715 PM 
  EDT. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

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 4226 7240 4235 7236 4230 7236 4234 7231
      4227 7198 4203 7209 4211 7234
TIME...MOT...LOC 2303Z 291DEG 29KT 4229 7232 

HAIL...0.75IN
WIND...60MPH
 
$$

FRANK

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 22, 5:09 PM EDT	Special Weather Statement	BOX	Worcester	36 min
Jul 22, 5:36 PM EDT	Special Weather Statement	BOX	Hampshire	39 min
Jul 22, 5:54 PM EDT	Severe Thunderstorm Warning	BOX	Hampden, Hampshire	51 min
Jul 22, 6:53 PM EDT	Severe Thunderstorm Warning	BOX	Hampshire, Worcester	52 min
Jul 22, 7:13 PM EDT	Severe Thunderstorm Warning	BOX	Hampshire, Worcester	20 min
Jul 22, 7:16 PM EDT	Severe Thunderstorm Warning	BOX	Worcester	44 min
Jul 22, 7:17 PM EDT	Special Weather Statement	BOX	Hampden	58 min
Jul 22, 7:19 PM EDT	Severe Thunderstorm Warning	BOX	Hampden, Worcester	41 min
Jul 22, 7:39 PM EDT	Severe Thunderstorm Warning	BOX	Hampden	51 min
Jul 22, 7:57 PM EDT	Severe Thunderstorm Warning	BOX	Middlesex, Norfolk, Suffolk, Worcester	48 min

Nearby

Severe Thunderstorm Warnings in Massachusetts, 2016 Every 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.