Alert archive / Massachusetts / Severe Thunderstorm Warnings in 2016

Severe Thunderstorm Warning 6, NWS Boston/Norton, MA

February 25, 2016Hampden County, Middlesex County, Worcester County, Massachusetts

NWS Boston/Norton, MA issued this severe thunderstorm warning at Feb 25, 2016, 1:57 AM EST for Hampden County, Middlesex County, Worcester County, Massachusetts. It was in force for 48 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
Feb 25, 2016, 1:57 AM EST (06:57 UTC)
Expired
Feb 25, 2016, 2:45 AM EST
In force
48 min
Issued by
NWS Boston/Norton, MA
Area
Storm-based polygon

Counties Hampden County, MA, Middlesex County, MA, Worcester County, MA

The radar

The Boston radar (KBOX), 80 km from the middle of the area, began a volume at 07:01 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
Feb 25, 2:22 AM ESTTSTM WND DMGBarre, MATREES DOWN ON SOUTH BARRE ROAD.

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
Feb 24, 11:51 PM ESTSevere Thunderstorm WatchSPC4 hr
Feb 25, 1:22 AM ESTSevere Thunderstorm WatchSPC4 hr

The nearest sounding before it

Albany, NY (KALY), launched 00:00Z, 7.0 hours before the alert went out and 161 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, Albany, NY at 00:00Z on 2016-02-25Temperature 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, Albany, NY at 00:00Z on 2016-02-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 534 square meters per square second.1939587897117Sfc1 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
536 m above ground
0-6 km bulk shear
44 kt
0-1 km storm-relative helicity
534 m²/s²
0-3 km storm-relative helicity
635 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.2

Open this sounding in Storm Lab

The text

As transmitted.

412 
WUUS51 KBOX 250657
SVRBOX
MAC013-017-027-250745-
/O.NEW.KBOX.SV.W.0006.160225T0657Z-160225T0745Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TAUNTON MA
157 AM EST THU FEB 25 2016

THE NATIONAL WEATHER SERVICE IN TAUNTON HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHEASTERN HAMPDEN COUNTY IN WESTERN MASSACHUSETTS...
  WORCESTER COUNTY IN CENTRAL MASSACHUSETTS...
  NORTHWESTERN MIDDLESEX COUNTY IN NORTHEASTERN MASSACHUSETTS...

* UNTIL 245 AM EST

* AT 156 AM EST...DOPPLER RADAR INDICATED A LINE OF SEVERE
  THUNDERSTORMS CAPABLE OF PRODUCING DESTRUCTIVE WINDS IN EXCESS OF
  70 MPH. THESE STORMS WERE LOCATED ALONG A LINE EXTENDING FROM NEAR
  GARDNER TO NEAR NEW BRAINTREE TO NEAR MONSON...AND WAS MOVING
  NORTHEAST AT 50 MPH.

* LOCATIONS IMPACTED INCLUDE...
  WORCESTER...LEOMINSTER...FITCHBURG...SHREWSBURY...GARDNER...GRAFTON...
  HOLDEN...WEBSTER...SOUTHBRIDGE...AUBURN...NORTHBOROUGH...OXFORD...
  CLINTON...MILLBURY...CHARLTON...SPENCER...PEPPERELL...DUDLEY...LEICESTER
  AND GROTON.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SEVERE THUNDERSTORMS PRODUCE DAMAGING WINDS AND LARGE HAIL. GO
INDOORS AND STAY AWAY FROM WINDOWS.  DRIVERS SHOULD PREPARE FOR LOW
VISIBILITY AND AVOID FLOODED ROADS.

THIS IS AN EXTREMELY DANGEROUS SITUATION. MOBILE HOMES AND HIGH
PROFILE VEHICLES ARE ESPECIALLY SUSCEPTIBLE TO WINDS OF THIS
MAGNITUDE AND MAY BE OVERTURNED. FOR YOUR PROTECTION MOVE
IMMEDIATELY TO A SAFE SHELTER OR TO AN INTERIOR ROOM ON THE LOWEST
FLOOR OF YOUR HOME OR BUSINESS.
THESE STORMS HAVE THE POTENTIAL TO CAUSE SERIOUS INJURY AND
SIGNIFICANT PROPERTY DAMAGE.

MINOR FLOODING CAN BE EXPECTED FROM TORRENTIAL RAINFALL. DO NOT DRIVE
THROUGH FLOODED ROADS.

&&

LAT...LON 4270 7156 4204 7173 4203 7234 4222 7214
      4271 7207
TIME...MOT...LOC 0656Z 209DEG 89KT 4261 7204 4231 7208 4210 7227 

$$

MD
2 follow-up statements
227 
WWUS51 KBOX 250722
SVSBOX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TAUNTON MA
222 AM EST THU FEB 25 2016

MAC013-250732-
/O.CAN.KBOX.SV.W.0006.000000T0000Z-160225T0745Z/
HAMPDEN MA-
222 AM EST THU FEB 25 2016

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN HAMPDEN COUNTY IS
CANCELLED...

THE STORMS WHICH PROMPTED THE WARNING HAVE MOVED OUT OF THE WARNED
AREA.THEREFORE THE WARNING HAS BEEN CANCELLED.

LAT...LON 4270 7156 4204 7173 4204 7212 4221 7206
      4271 7185
TIME...MOT...LOC 0722Z 209DEG 89KT 4316 7162 4286 7167 4265 7186 

$$

MAC017-027-250745-
/O.CON.KBOX.SV.W.0006.000000T0000Z-160225T0745Z/
WORCESTER MA-MIDDLESEX MA-
222 AM EST THU FEB 25 2016

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 245 AM EST
FOR CENTRAL WORCESTER AND NORTHWESTERN MIDDLESEX COUNTIES...

AT 222 AM EST...DOPPLER RADAR INDICATED A LINE OF SEVERE THUNDERSTORMS
CAPABLE OF PRODUCING DESTRUCTIVE WINDS IN EXCESS OF 70 MPH. THESE
STORMS WERE LOCATED ALONG A LINE EXTENDING FROM NEAR HOPKINTON TO
NEAR MILFORD TO NEAR ASHBY...MOVING NORTHEAST AT 100 MPH.

LOCATIONS IMPACTED INCLUDE...
WORCESTER...LEOMINSTER...FITCHBURG...SHREWSBURY...GRAFTON...HOLDEN...
WEBSTER...SOUTHBRIDGE...AUBURN...NORTHBOROUGH...OXFORD...CLINTON...
MILLBURY...CHARLTON...SPENCER...PEPPERELL...DUDLEY...LEICESTER...GROTON AND
LUNENBURG.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SEVERE THUNDERSTORMS PRODUCE DAMAGING WINDS...DESTRUCTIVE HAIL...DEADLY
LIGHTNING AND VERY HEAVY RAIN. FOR YOUR PROTECTION MOVE TO AN
INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME OR BUSINESS. HEAVY
RAINS FLOOD ROADS QUICKLY SO DO NOT DRIVE INTO AREAS WHERE WATER
COVERS THE ROAD.

&&

LAT...LON 4270 7156 4204 7173 4204 7212 4221 7206
      4271 7185
TIME...MOT...LOC 0722Z 209DEG 89KT 4316 7162 4286 7167 4265 7186 

$$

MD
601 
WWUS51 KBOX 250741
SVSBOX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TAUNTON MA
241 AM EST THU FEB 25 2016

MAC017-027-250751-
/O.EXP.KBOX.SV.W.0006.000000T0000Z-160225T0745Z/
WORCESTER MA-MIDDLESEX MA-
241 AM EST THU FEB 25 2016

...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL WORCESTER AND
NORTHWESTERN MIDDLESEX COUNTIES WILL EXPIRE AT 245 AM EST...

THE STORMS WHICH PROMPTED THE WARNING HAVE MOVED OUT OF THE WARNED
AREA. THEREFORE THE WARNING WILL BE ALLOWED TO EXPIRE.

LAT...LON 4270 7156 4204 7173 4204 7212 4221 7206
      4271 7185
TIME...MOT...LOC 0739Z 209DEG 89KT 4316 7162 4286 7167 4265 7186 

$$

MD

The office that day

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

IssuedProductOfficeCountiesLasted
Feb 24, 10:13 PM ESTSpecial Weather StatementBOXHampden32 min
Feb 24, 10:32 PM ESTSpecial Weather StatementBOXFranklin, Hampshire28 min
Feb 24, 11:24 PM ESTSpecial Weather StatementBOXFranklin, Hampden, Hampshire36 min
Feb 24, 11:55 PM ESTSpecial Weather StatementBOXFranklin, Hampden, Hampshire, Worcester50 min
Feb 25, 12:19 AM ESTSevere Thunderstorm WarningBOXFranklin, Hampden, Hampshire41 min
Feb 25, 12:38 AM ESTSpecial Weather StatementBOXHampden52 min
Feb 25, 12:55 AM ESTSevere Thunderstorm WarningBOXFranklin, Hampden, Hampshire50 min
Feb 25, 12:58 AM ESTSevere Thunderstorm WarningBOXFranklin, Hampden, Hampshire, Middlesex, Worcester62 min
Feb 25, 1:11 AM ESTAreal Flood AdvisoryBOXFranklin, Hampden, Hampshire, Worcester3 hr
Feb 25, 1:25 AM ESTAreal Flood WarningBOXFranklin, Hampden, Hampshire4 hr
Feb 25, 1:54 AM ESTSevere Thunderstorm WarningBOXHampden51 min
Feb 25, 2:40 AM ESTSevere Thunderstorm WarningBOXBristol, Essex, Middlesex, Norfolk, Worcester50 min
Feb 25, 2:56 AM ESTSpecial Marine WarningBOX64 min
Feb 25, 3:01 AM ESTSevere Thunderstorm WarningBOXBristol, Essex, Middlesex, Norfolk, Plymouth, Suffolk59 min
Feb 25, 3:11 AM ESTSevere Thunderstorm WarningBOXBarnstable, Bristol, Norfolk, Plymouth64 min
Feb 25, 3:52 AM ESTSevere Thunderstorm WarningBOXBristol, Essex, Middlesex, Norfolk, Plymouth, Suffolk38 min
Feb 25, 4:11 AM ESTSevere Thunderstorm WarningBOXBarnstable, Bristol, Plymouth49 min
Feb 25, 5:29 AM ESTAreal Flood WarningBOXFranklin, Hampden, Hampshire2 hr
Feb 25, 7:26 AM ESTAreal Flood WarningBOXFranklin, Hampshire2 hr
Feb 25, 8:02 AM ESTRiver Flood WarningBOXHampden, Hampshire17 hr
Feb 25, 2:21 PM ESTRiver Flood WarningBOXFranklin, Hampshire44 hr
Feb 25, 2:21 PM ESTRiver Flood WarningBOXHampden, Hampshire62 hr
Feb 25, 2:21 PM ESTRiver Flood WarningBOXHampden71 hr
Feb 25, 6:53 PM ESTSmall Craft AdvisoryBOX33 hr

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.