Alert archive / Massachusetts / Severe Thunderstorm Warnings in 2011
Severe Thunderstorm Warning 5, NWS Boston/Norton, MA
NWS Boston/Norton, MA issued this severe thunderstorm warning at May 27, 2011, 12:14 AM EDT for Franklin County, Middlesex County, Worcester County, Massachusetts; Cheshire County, Hillsborough County, New Hampshire. It was in force for 34 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
- May 27, 2011, 12:14 AM EDT (04:14 UTC)
- Expired
- May 27, 2011, 12:48 AM EDT
- In force
- 34 min
- Issued by
- NWS Boston/Norton, MA
- Area
- Storm-based polygon
Counties Franklin County, MA, Middlesex County, MA, Worcester County, MA, Cheshire County, NH, Hillsborough County, NH
The radar
The Boston radar (KBOX), 145 km from the middle of the area, began a volume at 04:15 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 |
|---|---|---|---|
| May 27, 12:25 AM EDT | TSTM WND DMG | Winchester, NH | TREE DOWN ON HOUSE ON SPRUCE LANE DAMAGE TO WINDOWS AND ROOF |
| May 27, 12:30 AM EDT | TSTM WND DMG | Westmoreland, NH | TREES AND WIRES DOWN ON ROUTE 12 |
| May 27, 12:38 AM EDT | TSTM WND DMG | Spofford, NH | TREE DOWN ON WIRES ON EDGAR ROAD |
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 00:00Z, 4.2 hours before the alert went out and 127 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.
- Mixed-layer CAPE
- 1789 J/kg
- Mixed-layer CIN
- -111 J/kg
- Mixed-layer LCL
- 1244 m above ground
- 0-6 km bulk shear
- 22 kt
- 0-1 km storm-relative helicity
- 231 m²/s²
- 0-3 km storm-relative helicity
- 267 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 2.7
The text
As transmitted, in the capitals the NWS used until 2016.
290
WUUS51 KBOX 270414
SVRBOX
MAC011-017-027-NHC005-011-270500-
/O.NEW.KBOX.SV.W.0005.110527T0414Z-110527T0500Z/
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TAUNTON MA
1214 AM EDT FRI MAY 27 2011
THE NATIONAL WEATHER SERVICE IN TAUNTON HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
NORTHWESTERN WORCESTER COUNTY IN CENTRAL MASSACHUSETTS...
THIS INCLUDES THE CITY OF FITCHBURG...
EXTREME NORTHWESTERN MIDDLESEX COUNTY IN SOUTHEAST MASSACHUSETTS...
CHESHIRE COUNTY IN SOUTHERN NEW HAMPSHIRE...
THIS INCLUDES THE CITIES OF...KEENE...JAFFREY...
WESTERN HILLSBOROUGH COUNTY IN SOUTHERN NEW HAMPSHIRE...
FRANKLIN COUNTY IN WESTERN MASSACHUSETTS...
THIS INCLUDES THE CITY OF GREENFIELD...
* UNTIL 100 AM EDT
* AT 1212 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING QUARTER SIZE
HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. THESE STORMS WERE
LOCATED ALONG A LINE EXTENDING FROM 17 MILES WEST OF WALPOLE TO
ASHFIELD...OR ALONG A LINE EXTENDING FROM 10 MILES NORTHEAST OF
STRATTON TO 11 MILES NORTHWEST OF NORTHAMPTON...AND WAS MOVING EAST
AT 50 MPH.
* SOME LOCATIONS IN THE WARNING INCLUDE...CONWAY...SHELBURNE...
COLRAIN...WHATELY...LEYDEN...DEERFIELD...SUNDERLAND...
BERNARDSTON...MONTAGUE...LEVERETT...GILL...HINSDALE...
CHESTERFIELD...WESTMORELAND...NORTHFIELD...SHUTESBURY...WENDELL...
ERVING...WINCHESTER...ALSTEAD...NEW SALEM...WARWICK...SURRY...
ORANGE...RICHMOND...SWANZEY...GILSUM...ATHOL...SULLIVAN...
MARLBOROUGH...PETERSHAM...ROXBURY...MARLOW...ROYALSTON...TROY...
FITZWILLIAM...PHILLIPSTON...NELSON...HARRISVILLE...STODDARD...
TEMPLETON...DUBLIN...WINCHENDON...RINDGE...GARDNER...HANCOCK...
WINDSOR...TEMPLE...SHARON...PETERBOROUGH...NEW IPSWICH...
HILLSBOROUGH...GREENVILLE...GREENFIELD...FRANCESTOWN...DEERING...
BENNINGTON...WESTMINSTER...ASHBY AND ASHBURNHAM.
SEVERE THUNDERSTORMS PRODUCE DAMAGING WINDS AND LARGE HAIL...AS WELL
AS DEADLY LIGHTNING AND TORRENTIAL RAIN. GET TO SAFE SHELTER NOW...
INSIDE A STURDY BUILDING OR IN A VEHICLE. DO NOT SEEK SHELTER UNDER
TREES. IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE STRUCK BY
LIGHTNING. DRIVERS SHOULD BE ALERT FOR PONDING OF WATER AND AVOID
FLOODED ROADS.
&&
LAT...LON 4313 7186 4313 7181 4253 7175 4241 7270
4245 7271 4248 7286 4274 7286 4273 7246
4276 7252 4288 7256 4295 7254 4301 7245
4316 7246 4314 7238 4316 7238 4319 7216
4314 7217 4313 7205 4319 7203 4321 7191
TIME...MOT...LOC 0414Z 260DEG 44KT 4314 7274 4248 7273
$$
KJC2 follow-up statements
887
WWUS51 KBOX 270432
SVSBOX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TAUNTON MA
1232 AM EDT FRI MAY 27 2011
MAC011-017-027-NHC005-011-270500-
/O.CON.KBOX.SV.W.0005.000000T0000Z-110527T0500Z/
CHESHIRE NH-MIDDLESEX MA-WORCESTER MA-FRANKLIN MA-HILLSBOROUGH NH-
1232 AM EDT FRI MAY 27 2011
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 100 AM EDT
FOR WESTERN HILLSBOROUGH...EASTERN FRANKLIN...NORTHWESTERN
WORCESTER...EXTREME NORTHWESTERN MIDDLESEX AND CHESHIRE COUNTIES...
AT 1230 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
WEAKENING LINE OF SEVERE THUNDERSTORMS WHICH STILL MAY BE CAPABLE OF
PRODUCING DAMAGING WINDS IN EXCESS OF 60 MPH. THESE STORMS WERE
LOCATED ALONG A LINE EXTENDING FROM ALSTEAD TO WENDELL...OR ALONG A
LINE EXTENDING FROM BELLOWS FALLS TO 8 MILES SOUTHEAST OF
GREENFIELD...MOVING EAST AT 50 MPH.
OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
NORTHFIELD...WALPOLE...ERVING...WINCHESTER...NEW SALEM...WARWICK...
SURRY...ORANGE...KEENE...RICHMOND...SWANZEY...GILSUM...ATHOL...
SULLIVAN...MARLBOROUGH...PETERSHAM...ROXBURY...MARLOW...ROYALSTON...
TROY...FITZWILLIAM...PHILLIPSTON...NELSON...HARRISVILLE...STODDARD...
TEMPLETON...DUBLIN...WINCHENDON...JAFFREY...RINDGE...GARDNER...
WINDSOR...TEMPLE...SHARON...PETERBOROUGH...NEW IPSWICH...
HILLSBOROUGH...GREENVILLE...GREENFIELD...FRANCESTOWN...DEERING...
BENNINGTON...ANTRIM...WESTMINSTER...FITCHBURG...ASHBY...ASHBURNHAM
AND HANCOCK
LAT...LON 4313 7186 4313 7181 4253 7175 4244 7248
4257 7257 4273 7257 4273 7246 4276 7252
4288 7256 4295 7254 4301 7245 4316 7246
4314 7238 4316 7238 4319 7216 4314 7217
4313 7205 4319 7203 4321 7191
TIME...MOT...LOC 0431Z 260DEG 44KT 4317 7245 4253 7245
$$980
WWUS51 KBOX 270448
SVSBOX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TAUNTON MA
1248 AM EDT FRI MAY 27 2011
MAC011-017-027-NHC005-011-270457-
/O.CAN.KBOX.SV.W.0005.000000T0000Z-110527T0500Z/
CHESHIRE NH-MIDDLESEX MA-WORCESTER MA-FRANKLIN MA-HILLSBOROUGH NH-
1248 AM EDT FRI MAY 27 2011
...THE SEVERE THUNDERSTORM WARNING FOR WESTERN HILLSBOROUGH...EASTERN
FRANKLIN...NORTHWESTERN WORCESTER...EXTREME NORTHWESTERN MIDDLESEX
AND CHESHIRE COUNTIES IS CANCELLED...
THUNDERSTORMS HAVE WEAKENED AND THE THREAT FOR SEVERE WEATHER HAS
DIMINISHED.
LAT...LON 4313 7186 4313 7181 4253 7175 4244 7248
4257 7257 4273 7257 4273 7246 4276 7252
4288 7256 4295 7254 4301 7245 4316 7246
4314 7238 4316 7238 4319 7216 4314 7217
4313 7205 4319 7203 4321 7191
TIME...MOT...LOC 0447Z 260DEG 44KT 4320 7218 4256 7219
$$
KJCThe office that day
Everything else NWS Boston/Norton, MA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 26, 8:07 PM EDT | Dense Fog Advisory | BOX | Barnstable, Bristol, Dukes, Nantucket, Norfolk, Plymouth | 13 hr |
| May 26, 11:23 PM EDT | Special Weather Statement | BOX | Franklin | 52 min |
| May 26, 11:48 PM EDT | Severe Thunderstorm Warning | BOX | Franklin, Hampshire | 27 min |
| May 27, 12:09 AM EDT | Special Weather Statement | BOX | Cheshire | 66 min |
Nearby
Severe Thunderstorm Warnings in Massachusetts, 2011Severe Thunderstorm Warnings in New Hampshire, 2011Every severe thunderstorm warning 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.