Alert archive / Massachusetts / Severe Thunderstorm Warnings in 2016

Severe Thunderstorm Warning 3, NWS Boston/Norton, MA

February 25, 2016Franklin County, Hampden County, Hampshire County, Massachusetts; Capitol Planning Region, Connecticut

NWS Boston/Norton, MA issued this severe thunderstorm warning at Feb 25, 2016, 12:55 AM EST for Franklin County, Hampden County, Hampshire County, Massachusetts; Capitol Planning Region, Connecticut. It was in force for 50 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, 12:55 AM EST (05:55 UTC)
Expired
Feb 25, 2016, 1:45 AM EST
In force
50 min
Issued by
NWS Boston/Norton, MA
Area
Storm-based polygon

Counties Capitol Planning Region, CT, Franklin County, MA, Hampden County, MA, Hampshire County, MA

The radar

The Albany radar (KENX), 93 km from the middle of the area, began a volume at 05:54 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, 1:04 AM ESTTSTM WND DMGWestfield, MALARGE LIMB DOWN ON EAST MOUNTAIN 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

The nearest sounding before it

Albany, NY (KALY), launched 00:00Z, 5.9 hours before the alert went out and 78 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.

192 
WUUS51 KBOX 250555
SVRBOX
CTC003-MAC011-013-015-250700-
/O.NEW.KBOX.SV.W.0003.160225T0555Z-160225T0700Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TAUNTON MA
1255 AM EST THU FEB 25 2016

THE NATIONAL WEATHER SERVICE IN TAUNTON HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTH CENTRAL HARTFORD COUNTY IN NORTHERN CONNECTICUT...
  HAMPSHIRE COUNTY IN WESTERN MASSACHUSETTS...
  WESTERN HAMPDEN COUNTY IN WESTERN MASSACHUSETTS...
  FRANKLIN COUNTY IN WESTERN MASSACHUSETTS...

* UNTIL 200 AM EST

* AT 1254 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
  NEWFANE TO NEAR ASHFIELD TO NEAR HARTLAND...AND WAS MOVING
  NORTHEAST AT 45 MPH.

* LOCATIONS IMPACTED INCLUDE...
  WESTFIELD...HOLYOKE...AMHERST...NORTHAMPTON...AGAWAM...WEST SPRINGFIELD...
  GREENFIELD...DEERFIELD...SOUTH HADLEY...EASTHAMPTON...SUFFIELD...MONROE...
  GRANBY...SOUTHWICK...MONTAGUE...SOUTHAMPTON...HADLEY...SUNDERLAND...
  HATFIELD AND NORTHFIELD.

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 4215 7307 4214 7305 4215 7303 4231 7300
      4233 7306 4238 7307 4239 7301 4266 7295
      4267 7300 4270 7295 4270 7302 4274 7302
      4272 7235 4203 7272 4204 7305
TIME...MOT...LOC 0554Z 207DEG 56KT 4292 7263 4255 7278 4200 7306 

$$

MD
2 follow-up statements
200 
WWUS51 KBOX 250636
SVSBOX

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

CTC003-MAC011-013-015-250700-
/O.CON.KBOX.SV.W.0003.000000T0000Z-160225T0700Z/
HARTFORD CT-HAMPSHIRE MA-HAMPDEN MA-FRANKLIN MA-
136 AM EST THU FEB 25 2016

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 200 AM EST
FOR NORTHERN HARTFORD...SOUTH CENTRAL HAMPSHIRE...WESTERN HAMPDEN AND
CENTRAL FRANKLIN COUNTIES...

AT 135 AM EST...DOPPLER RADAR INDICATED A LINE OF SEVERE
THUNDERSTORMS PRODUCING DESTRUCTIVE WINDS IN EXCESS OF 70 MPH. THESE
STORMS WERE LOCATED ALONG A LINE EXTENDING FROM 8 MILES NORTHWEST OF
NEWPORT TO WALPOLE TO NEAR CONWAY...MOVING NORTHEAST AT 65 MPH.

LOCATIONS IMPACTED INCLUDE...
WESTFIELD...HOLYOKE...AMHERST...NORTHAMPTON...AGAWAM...WEST SPRINGFIELD...
GREENFIELD...DEERFIELD...SOUTH HADLEY...EASTHAMPTON...SUFFIELD...
SOUTHWICK...MONTAGUE...SOUTHAMPTON...HADLEY...SUNDERLAND...HATFIELD...
NORTHFIELD...WILLIAMSBURG AND HUNTINGTON.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SEVERE THUNDERSTORMS PRODUCE DAMAGING WINDS...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.

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.

TORRENTIAL RAINFALL IS ALSO OCCURRING WITH THESE STORMS...AND MAY LEAD
TO FLASH FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED
ROADWAYS.

&&

LAT...LON 4272 7235 4203 7272 4204 7289 4273 7269
TIME...MOT...LOC 0635Z 207DEG 56KT 4347 7224 4310 7239 4256 7268 

$$

MD
829 
WWUS51 KBOX 250645
SVSBOX

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

CTC003-MAC011-013-015-250655-
/O.CAN.KBOX.SV.W.0003.000000T0000Z-160225T0700Z/
HARTFORD CT-HAMPSHIRE MA-HAMPDEN MA-FRANKLIN MA-
145 AM EST THU FEB 25 2016

...THE SEVERE THUNDERSTORM WARNING FOR NORTHERN HARTFORD...SOUTH
CENTRAL HAMPSHIRE...WESTERN HAMPDEN AND CENTRAL FRANKLIN COUNTIES IS
CANCELLED...
    
THE STORMS WHICH PROMPTED THE WARNING HAVE MOVED OUT OF THE AREA.
THEREFORE THE WARNING HAS BEEN CANCELLED. HOWEVER GUSTY WINDS ARE
STILL POSSIBLE WITH THESE THUNDERSTORMS.

LAT...LON 4272 7235 4203 7272 4204 7289 4273 7269
TIME...MOT...LOC 0643Z 207DEG 56KT 4359 7215 4322 7231 4268 7260 

$$

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, 12:58 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, 1:57 AM ESTSevere Thunderstorm WarningBOXHampden, Middlesex, Worcester48 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
Feb 25, 12:25 AM ESTSevere Thunderstorm WarningBOXCapitol Planning Region35 min
Feb 25, 12:43 AM ESTAreal Flood AdvisoryBOXCapitol Planning Region3 hr
Feb 25, 2:21 PM ESTRiver Flood WarningBOXCapitol Planning Region, Lower Connecticut River Valley Planning Region4 days
Feb 25, 2:21 PM ESTRiver Flood WarningBOXLower Connecticut River Valley Planning Region4 days

Nearby

Severe Thunderstorm Warnings in Massachusetts, 2016Severe Thunderstorm Warnings in Connecticut, 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.