Alert archive / Massachusetts / Severe Thunderstorm Warnings in 2011
Severe Thunderstorm Warning 53, NWS Boston/Norton, MA
NWS Boston/Norton, MA issued this severe thunderstorm warning at Jul 6, 2011, 6:54 PM EDT for Hampshire County, Massachusetts. It was in force for 66 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
- Jul 6, 2011, 6:54 PM EDT (22:54 UTC)
- Expired
- Jul 6, 2011, 8:00 PM EDT
- In force
- 66 min
- Issued by
- NWS Boston/Norton, MA
- Area
- Storm-based polygon
County Hampshire County, MA
The radar
The Albany radar (KENX), 107 km from the middle of the area, began a volume at 22:55 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, 7:14 PM EDT | TSTM WND DMG | Worthington, MA | 8 INCH DIAMETER TREE LIMBS DOWN ON RIVER 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.
| 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, 10.9 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.
997
WUUS51 KBOX 062254
SVRBOX
MAC015-070000-
/O.NEW.KBOX.SV.W.0053.110706T2254Z-110707T0000Z/
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TAUNTON MA
654 PM EDT WED JUL 6 2011
THE NATIONAL WEATHER SERVICE IN TAUNTON HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
HAMPSHIRE COUNTY IN WESTERN MASSACHUSETTS...
THIS INCLUDES THE CITIES OF...NORTHAMPTON...AMHERST...
* UNTIL 800 PM EDT
* AT 650 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 NEAR EAST WINDSOR...OR 18 MILES
SOUTH OF NORTH ADAMS...AND WAS MOVING EAST AT 35 MPH.
* SOME LOCATIONS IN THE WARNING INCLUDE...WORTHINGTON...PLAINFIELD...
CUMMINGTON...CHESTERFIELD...GOSHEN...WESTHAMPTON...WILLIAMSBURG...
HATFIELD...HADLEY...SOUTH HADLEY...GRANBY AND PELHAM.
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.
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 4240 7301 4255 7299 4254 7289 4249 7287
4244 7275 4245 7271 4241 7270 4243 7250
4241 7248 4242 7239 4224 7245 4227 7260
4229 7261 4227 7264 4231 7288 4234 7290
4235 7295 4232 7298 4234 7307 4239 7307
TIME...MOT...LOC 2254Z 268DEG 29KT 4244 7299
$$
FRANK1 follow-up statement
806
WWUS51 KBOX 062335
SVSBOX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TAUNTON MA
735 PM EDT WED JUL 6 2011
MAC015-070000-
/O.CON.KBOX.SV.W.0053.000000T0000Z-110707T0000Z/
HAMPSHIRE MA-
735 PM EDT WED JUL 6 2011
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 800 PM EDT
FOR HAMPSHIRE COUNTY...
AT 733 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN
EXCESS OF 60 MPH. THIS STORM WAS LOCATED NEAR CHESTERFIELD...OR 9
MILES NORTHWEST OF NORTHAMPTON...MOVING EAST AT 35 MPH.
OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
WESTHAMPTON...WILLIAMSBURG...HATFIELD...HADLEY...SOUTH HADLEY...
GRANBY AND AMHERST
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 900 PM EDT
WEDNESDAY EVENING FOR NORTHERN CONNECTICUT AND WESTERN MASSACHUSETTS
AND SOUTHERN NEW HAMPSHIRE.
&&
LAT...LON 4240 7301 4255 7299 4254 7289 4249 7287
4244 7275 4245 7271 4241 7270 4243 7250
4241 7248 4242 7239 4224 7245 4227 7260
4229 7261 4227 7264 4231 7288 4234 7290
4235 7295 4232 7298 4234 7307 4239 7307
TIME...MOT...LOC 2335Z 273DEG 29KT 4240 7281
$$
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, 6:34 PM EDT | Severe Thunderstorm Warning | BOX | Franklin | 56 min |
| Jul 6, 6:47 PM EDT | Special Weather Statement | BOX | Hampshire | 58 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.