Alert archive / Massachusetts / Tornado Warnings in 2011

Tornado Warning 2, NWS Boston/Norton, MA

June 1, 2011Franklin County, Hampden County, Hampshire County, Massachusetts

NWS Boston/Norton, MA issued this tornado warning at Jun 1, 2011, 3:28 PM EDT for Franklin County, Hampden County, Hampshire County, Massachusetts. It was in force for 32 min. 5 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 1, 2011, 3:28 PM EDT (19:28 UTC)
Expired
Jun 1, 2011, 4:00 PM EDT
In force
32 min
Issued by
NWS Boston/Norton, MA
Area
Storm-based polygon

Counties Franklin County, MA, Hampden County, MA, Hampshire County, MA

The radar

The Albany radar (KENX), 98 km from the middle of the area, began a volume at 19:30 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
Jun 1, 3:32 PM EDTHAIL 1Huntington, MA
Jun 1, 3:45 PM EDTHAIL 1.25Northampton, MA
Jun 1, 3:46 PM EDTHAIL 1.25Northampton, MAHAM RADIO
Jun 1, 3:50 PM EDTHAIL 1.75Northampton, MAPER FIRE CHIEF VIA RELAYED MEDIA
Jun 1, 3:58 PM EDTTSTM WND DMGNorthampton, MATREE DOWN ON CAR ON WALNUT ST

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
Jun 1, 12:58 PM EDTTornado WatchSPC7 hr

The nearest sounding before it

Albany, NY (KALY), launched 12:00Z, 7.5 hours before the alert went out and 84 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 12:00Z on 2011-06-01Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2410 joules per kilogram.LCLLFCEL10008507005003002001001 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 12:00Z on 2011-06-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 159 square meters per square second.193958Sfc1 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
2410 J/kg
Mixed-layer CIN
-130 J/kg
Mixed-layer LCL
836 m above ground
0-6 km bulk shear
34 kt
0-1 km storm-relative helicity
159 m²/s²
0-3 km storm-relative helicity
189 m²/s²
Significant tornado parameter
0.0
Supercell composite
3.5

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

296 
WFUS51 KBOX 011928
TORBOX
MAC011-013-015-012000-
/O.NEW.KBOX.TO.W.0002.110601T1928Z-110601T2000Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE TAUNTON MA
328 PM EDT WED JUN 1 2011

THE NATIONAL WEATHER SERVICE IN TAUNTON HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTH CENTRAL FRANKLIN COUNTY IN WESTERN MASSACHUSETTS...
  NORTHWESTERN HAMPDEN COUNTY IN WESTERN MASSACHUSETTS...
  WESTERN HAMPSHIRE COUNTY IN WESTERN MASSACHUSETTS...
  THIS INCLUDES THE CITIES OF...NORTHAMPTON...AMHERST...

* UNTIL 400 PM EDT

* AT 327 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO NEAR CHESTER...
  OR 11 MILES WEST OF NORTHAMPTON...MOVING EAST AT 40 MPH.

* SOME LOCATIONS IN THE WARNING INCLUDE...CHESTERFIELD...GOSHEN...
  WESTHAMPTON...SOUTHAMPTON...WILLIAMSBURG...EASTHAMPTON...
  HATFIELD...WHATELY...HADLEY...SOUTH HADLEY AND GRANBY.

WHEN A TORNADO WARNING IS ISSUED BASED ON DOPPLER RADAR...IT MEANS A
TORNADO MAY ALREADY BE ON THE GROUND OR IS EXPECTED TO DEVELOP
SHORTLY. TAKE COVER NOW! MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR
OF A STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A VEHICLE
OR OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT
YOURSELF FROM FLYING DEBRIS.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 800 PM EDT WEDNESDAY EVENING
FOR NORTHERN CONNECTICUT AND MASSACHUSETTS AND SOUTHERN NEW HAMPSHIRE
AND CENTRAL RHODE ISLAND.

&&

LAT...LON 4239 7303 4239 7302 4243 7300 4244 7299
      4245 7251 4222 7247 4221 7302 4225 7301
      4230 7301 4231 7303
TIME...MOT...LOC 1928Z 264DEG 33KT 4233 7288

$$

DOODY
1 follow-up statement
376 
WWUS51 KBOX 011955
SVSBOX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TAUNTON MA
355 PM EDT WED JUN 1 2011

MAC011-013-015-012000-
/O.CON.KBOX.TO.W.0002.000000T0000Z-110601T2000Z/
FRANKLIN MA-HAMPSHIRE MA-HAMPDEN MA-
355 PM EDT WED JUN 1 2011

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 400 PM EDT FOR NORTH
CENTRAL HAMPDEN...CENTRAL HAMPSHIRE AND SOUTH CENTRAL FRANKLIN
COUNTIES...

AT 350 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A TORNADO.  THIS TORNADO WAS LOCATED NEAR HADLEY...OR NEAR
NORTHAMPTON...MOVING EAST AT 40 MPH.

GOLF BALL SIZED HAIL WAS REPORTED IN NORTHAMPTON BY FIRE 
OFFICIALS...RELAYED BY MEDIA.

OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO GRANBY
AND AMHERST

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A TORNADO WATCH REMAINS IN EFFECT UNTIL 800 PM EDT WEDNESDAY EVENING
FOR NORTHERN CONNECTICUT AND MASSACHUSETTS AND SOUTHERN NEW HAMPSHIRE
AND CENTRAL RHODE ISLAND.

&&

LAT...LON 4222 7275 4226 7275 4234 7275 4238 7276
      4242 7277 4243 7277 4244 7276 4245 7251
      4222 7247
TIME...MOT...LOC 1954Z 264DEG 33KT 4235 7256

$$

DOODY

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 1, 8:25 AM EDTSpecial Weather StatementBOXMiddlesex50 min
Jun 1, 8:32 AM EDTSevere Thunderstorm WarningBOXEssex, Middlesex43 min
Jun 1, 8:48 AM EDTSpecial Weather StatementBOXSuffolk42 min
Jun 1, 8:50 AM EDTSpecial Marine WarningBOX71 min
Jun 1, 8:55 AM EDTSpecial Weather StatementBOXBristol50 min
Jun 1, 9:12 AM EDTSpecial Weather StatementBOXPlymouth48 min
Jun 1, 9:40 AM EDTSpecial Marine WarningBOX50 min
Jun 1, 9:41 AM EDTSpecial Marine WarningBOX64 min
Jun 1, 10:00 AM EDTSpecial Marine WarningBOX39 min
Jun 1, 10:22 AM EDTSpecial Weather StatementBOXBarnstable38 min
Jun 1, 10:36 AM EDTSpecial Marine WarningBOX54 min
Jun 1, 2:37 PM EDTSevere Thunderstorm WarningBOXFranklin, Hampshire53 min
Jun 1, 2:58 PM EDTSpecial Weather StatementBOXHampshire62 min
Jun 1, 3:09 PM EDTSevere Thunderstorm WarningBOXFranklin, Hampden, Hampshire, Worcester51 min
Jun 1, 3:32 PM EDTSevere Thunderstorm WarningBOXFranklin, Middlesex, Worcester40 min
Jun 1, 3:56 PM EDTAreal Flood AdvisoryBOXFranklin, Hampden, Hampshire3 hr
Jun 1, 4:05 PM EDTTornado WarningBOXFranklin, Hampden, Hampshire, Worcester40 min
Jun 1, 4:15 PM EDTAreal Flood AdvisoryBOXFranklin, Hampden, Hampshire, Worcester3 hr
Jun 1, 4:18 PM EDTSevere Thunderstorm WarningBOXHampden, Hampshire, Worcester42 min
Jun 1, 4:30 PM EDTTornado WarningBOXHampden, Hampshire, Worcester45 min
Jun 1, 4:44 PM EDTSevere Thunderstorm WarningBOXFranklin, Hampden, Hampshire, Middlesex, Norfolk, Worcester61 min
Jun 1, 4:51 PM EDTAreal Flood AdvisoryBOXFranklin, Hampshire, Worcester3 hr
Jun 1, 5:01 PM EDTTornado WarningBOXFranklin, Hampden, Hampshire, Middlesex, Norfolk, Worcester44 min
Jun 1, 5:06 PM EDTAreal Flood AdvisoryBOXHampden, Worcester3 hr
Jun 1, 5:17 PM EDTFlash Flood WarningBOXMiddlesex, Worcester3 hr
Jun 1, 5:17 PM EDTTornado WarningBOXHampden, Norfolk, Worcester29 min
Jun 1, 5:38 PM EDTSevere Thunderstorm WarningBOXBristol, Norfolk, Worcester67 min
Jun 1, 5:46 PM EDTTornado WarningBOXMiddlesex, Norfolk, Worcester44 min
Jun 1, 5:49 PM EDTFlash Flood WarningBOXBristol, Middlesex, Norfolk, Worcester3 hr
Jun 1, 5:54 PM EDTSevere Thunderstorm WarningBOXFranklin, Worcester52 min
Jun 1, 5:57 PM EDTSevere Thunderstorm WarningBOXFranklin, Hampden, Hampshire, Worcester26 min
Jun 1, 6:00 PM EDTSevere Thunderstorm WarningBOXWorcester45 min
Jun 1, 6:07 PM EDTTornado WarningBOXHampden, Hampshire, Worcester53 min
Jun 1, 6:20 PM EDTSpecial Marine WarningBOX28 min
Jun 1, 6:29 PM EDTAreal Flood AdvisoryBOXBristol, Norfolk, Plymouth, Suffolk2 hr
Jun 1, 6:31 PM EDTSpecial Weather StatementBOXNorfolk59 min
Jun 1, 6:44 PM EDTSpecial Weather StatementBOXBristol, Plymouth61 min
Jun 1, 6:44 PM EDTSevere Thunderstorm WarningBOXFranklin, Middlesex, Worcester30 min
Jun 1, 6:57 PM EDTTornado WarningBOXHampden, Worcester63 min
Jun 1, 7:12 PM EDTTornado WarningBOXFranklin, Middlesex, Worcester48 min
Jun 1, 7:14 PM EDTSpecial Marine WarningBOX91 min
Jun 1, 7:15 PM EDTAreal Flood AdvisoryBOXFranklin, Middlesex, Worcester104 min
Jun 1, 7:55 PM EDTSpecial Weather StatementBOXBristol35 min
Jun 1, 7:56 PM EDTSpecial Weather StatementBOXHampden34 min
Jun 1, 7:57 PM EDTSevere Thunderstorm WarningBOXBristol, Middlesex, Norfolk, Plymouth, Suffolk, Worcester24 min
Jun 1, 7:59 PM EDTAreal Flood AdvisoryBOXHampden, Hampshire, Worcester66 min

Nearby

Tornado Warnings in Massachusetts, 2011Every tornado warning in 2011Tornadoes 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.