Alert archive / Massachusetts / Severe Thunderstorm Warnings in 2011
Severe Thunderstorm Warning 52, NWS Boston/Norton, MA
NWS Boston/Norton, MA issued this severe thunderstorm warning at Jul 6, 2011, 6:34 PM EDT for Franklin County, Massachusetts. It was in force for 56 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 6, 2011, 6:34 PM EDT (22:34 UTC)
- Expired
- Jul 6, 2011, 7:30 PM EDT
- In force
- 56 min
- Issued by
- NWS Boston/Norton, MA
- Area
- Storm-based polygon
County Franklin County, MA
The radar
The Albany radar (KENX), 110 km from the middle of the area, began a volume at 22:36 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 6, 7:04 PM EDT | TSTM WND DMG | Heath, MA | TREE DOWN ON LONG HILL ROAD |
| Jul 6, 7:09 PM EDT | TSTM WND DMG | Shelburne, MA | TREE DOWN |
| Jul 6, 7:35 PM EDT | TSTM WND DMG | Erving, MA | TREE AND WIRES DOWN ON PROSPECT HEIGHTS LANE |
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.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jul 6, 1:29 PM EDT | Severe Thunderstorm Watch | SPC | 8 hr |
The nearest sounding before it
Albany, NY (KALY), launched 12:00Z, 10.6 hours before the alert went out and 92 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1486 m above ground
- 0-6 km bulk shear
- 37 kt
- 0-1 km storm-relative helicity
- 64 m²/s²
- 0-3 km storm-relative helicity
- 69 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
325
WUUS51 KBOX 062234
SVRBOX
MAC011-062330-
/O.NEW.KBOX.SV.W.0052.110706T2234Z-110706T2330Z/
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TAUNTON MA
634 PM EDT WED JUL 6 2011
THE NATIONAL WEATHER SERVICE IN TAUNTON HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
FRANKLIN COUNTY IN WESTERN MASSACHUSETTS...
THIS INCLUDES THE CITY OF GREENFIELD...
* UNTIL 730 PM EDT
* AT 631 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS
OF 60 MPH. THIS STORM WAS LOCATED 7 MILES SOUTHWEST OF MONROE...OR
NEAR NORTH ADAMS...AND WAS MOVING EAST AT 30 MPH.
* SOME LOCATIONS IN THE WARNING INCLUDE...ROWE...CHARLEMONT...
HAWLEY...HEATH...BUCKLAND...ASHFIELD...COLRAIN...SHELBURNE...
CONWAY...LEYDEN...WHATELY...DEERFIELD...SUNDERLAND...BERNARDSTON...
MONTAGUE...GILL...LEVERETT...WENDELL...WARWICK...SHUTESBURY...
NORTHFIELD AND ERVING.
IN ADDITION TO LARGE HAIL AND DAMAGING WINDS...FREQUENT LIGHTNING WAS
OCCURRING WITH THIS STORM. GET INDOORS OR INSIDE A VEHICLE NOW! DO
NOT SEEK SHELTER UNDER TREES. IF YOU CAN HEAR THUNDER...YOU ARE CLOSE
ENOUGH TO BE STRUCK BY LIGHTNING.
A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 900 PM EDT
WEDNESDAY EVENING FOR NORTHERN CONNECTICUT AND WESTERN MASSACHUSETTS
AND SOUTHERN NEW HAMPSHIRE.
&&
LAT...LON 4272 7228 4241 7237 4242 7238 4241 7248
4243 7250 4241 7270 4245 7271 4244 7275
4247 7278 4248 7286 4254 7289 4256 7298
4266 7296 4268 7299 4270 7296 4270 7302
4274 7303
TIME...MOT...LOC 2234Z 273DEG 26KT 4266 7302
$$
FRANK1 follow-up statement
642
WWUS51 KBOX 062303
SVSBOX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TAUNTON MA
703 PM EDT WED JUL 6 2011
MAC011-062330-
/O.CON.KBOX.SV.W.0052.000000T0000Z-110706T2330Z/
FRANKLIN MA-
703 PM EDT WED JUL 6 2011
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 730 PM EDT
FOR FRANKLIN COUNTY...
AT 700 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN
EXCESS OF 60 MPH. THIS STORM WAS LOCATED NEAR BUCKLAND...OR 9 MILES
NORTHWEST OF GREENFIELD...MOVING EAST AT 30 MPH.
OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
COLRAIN...SHELBURNE...CONWAY...LEYDEN...WHATELY...DEERFIELD...
SUNDERLAND...BERNARDSTON...MONTAGUE...GILL...LEVERETT...WENDELL...
WARWICK...SHUTESBURY...NORTHFIELD AND ERVING
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 900 PM EDT
WEDNESDAY EVENING FOR NORTHERN CONNECTICUT AND WESTERN MASSACHUSETTS
AND SOUTHERN NEW HAMPSHIRE.
&&
LAT...LON 4272 7228 4241 7237 4242 7238 4241 7248
4243 7250 4241 7270 4245 7271 4244 7275
4247 7278 4248 7286 4254 7289 4256 7298
4266 7296 4268 7299 4270 7296 4270 7302
4274 7303
TIME...MOT...LOC 2303Z 273DEG 26KT 4265 7274
$$
FRANKThe office that day
Everything else NWS Boston/Norton, MA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 6, 4:53 PM EDT | Special Weather Statement | BOX | Franklin | 37 min |
| Jul 6, 5:16 PM EDT | Special Weather Statement | BOX | Franklin | 29 min |
| Jul 6, 6:23 PM EDT | Special Weather Statement | BOX | Franklin | 67 min |
| Jul 6, 6:47 PM EDT | Special Weather Statement | BOX | Hampshire | 58 min |
| Jul 6, 6:54 PM EDT | Severe Thunderstorm Warning | BOX | Hampshire | 66 min |
| Jul 6, 7:26 PM EDT | Severe Thunderstorm Warning | BOX | Franklin, Middlesex, Worcester | 36 min |
| Jul 6, 7:39 PM EDT | Severe Thunderstorm Warning | BOX | Hampden, Hampshire | 66 min |
| Jul 6, 7:59 PM EDT | Severe Thunderstorm Warning | BOX | Franklin, Hampshire | 46 min |
Nearby
Severe Thunderstorm Warnings in Massachusetts, 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.