Alert archive / Massachusetts / Severe Thunderstorm Warnings in 2011
Severe Thunderstorm Warning 25, NWS Boston/Norton, MA
NWS Boston/Norton, MA issued this severe thunderstorm warning at Jun 1, 2011, 8:58 PM EDT for Middlesex County, Norfolk County, Worcester County, Massachusetts. It was in force for 32 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Jun 1, 2011, 8:58 PM EDT (00:58 UTC)
- Expired
- Jun 1, 2011, 9:30 PM EDT
- In force
- 32 min
- Issued by
- NWS Boston/Norton, MA
- Area
- Storm-based polygon
Counties Middlesex County, MA, Norfolk County, MA, Worcester County, MA
The radar
The Boston radar (KBOX), 42 km from the middle of the area, began a volume at 00:59 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.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jun 1, 7:40 PM EDT | Tornado Watch | SPC | 2 hr |
The nearest sounding before it
Chatham, MA (KCHH), launched 00:00Z, 1.0 hours before the alert went out and 143 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
- 801 J/kg
- Mixed-layer CIN
- -273 J/kg
- Mixed-layer LCL
- 869 m above ground
- 0-6 km bulk shear
- 26 kt
- 0-1 km storm-relative helicity
- 213 m²/s²
- 0-3 km storm-relative helicity
- 297 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
360
WUUS51 KBOX 020058
SVRBOX
MAC017-021-027-020145-
/O.NEW.KBOX.SV.W.0025.110602T0058Z-110602T0145Z/
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TAUNTON MA
858 PM EDT WED JUN 1 2011
THE NATIONAL WEATHER SERVICE IN TAUNTON HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
SOUTHEASTERN WORCESTER COUNTY IN CENTRAL MASSACHUSETTS...
THIS INCLUDES THE CITY OF MILFORD...
SOUTHERN NORFOLK COUNTY IN EASTERN MASSACHUSETTS...
THIS INCLUDES THE CITY OF FRANKLIN...
EXTREME SOUTH CENTRAL MIDDLESEX COUNTY IN SOUTHEAST
MASSACHUSETTS...
* UNTIL 945 PM EDT
* AT 854 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 SOUTHBRIDGE...OR 14 MILES
NORTH OF PUTNAM...AND WAS MOVING EAST AT 50 MPH.
* SOME LOCATIONS IN THE WARNING INCLUDE...WEBSTER...OXFORD...
AUBURN...SUTTON...MILLBURY...DOUGLAS...GRAFTON...WHITINSVILLE...
NORTHBRIDGE...UPTON...UXBRIDGE...MILLVILLE...MENDON...HOPEDALE...
HOPKINTON...BELLINGHAM...HOLLISTON...MEDWAY...MILLIS...WRENTHAM...
PLAINVILLE...NORFOLK...MEDFIELD...FOXBOROUGH...WALPOLE...
WESTWOOD...NORWOOD...SHARON...STOUGHTON AND CANTON.
A TORNADO WATCH IS ALSO IN EFFECT. SEVERE THUNDERSTORMS CAN PRODUCE
TORNADOES WITH LITTLE OR NO ADVANCED WARNING. REMAIN CALM...BUT TAKE
COVER NOW. GO TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A STURDY
BUILDING. AVOID WINDOWS.
&&
LAT...LON 4222 7208 4223 7106 4210 7107 4199 7135
4199 7138 4202 7138 4201 7180 4203 7184
4203 7207
TIME...MOT...LOC 0058Z 270DEG 43KT 4210 7193
$$
BELK1 follow-up statement
494
WWUS51 KBOX 020130
SVSBOX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TAUNTON MA
930 PM EDT WED JUN 1 2011
MAC017-021-027-020140-
/O.CAN.KBOX.SV.W.0025.000000T0000Z-110602T0145Z/
MIDDLESEX MA-WORCESTER MA-NORFOLK MA-
930 PM EDT WED JUN 1 2011
...THE SEVERE THUNDERSTORM WARNING FOR NORFOLK...SOUTHEASTERN
WORCESTER AND EXTREME SOUTH CENTRAL MIDDLESEX COUNTIES IS
CANCELLED...
A TORNADO WATCH REMAINS IN EFFECT UNTIL 1100 PM EDT WEDNESDAY EVENING
FOR NORTHERN CONNECTICUT AND MASSACHUSETTS AND SOUTHERN NEW HAMPSHIRE
AND CENTRAL RHODE ISLAND.
LAT...LON 4222 7208 4223 7106 4210 7107 4199 7135
4199 7138 4202 7138 4201 7180 4203 7184
4203 7207
TIME...MOT...LOC 0130Z 270DEG 43KT 4210 7141
$$
BELKThe office that day
Everything else NWS Boston/Norton, MA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 1, 8:03 PM EDT | Severe Thunderstorm Warning | BOX | Middlesex, Worcester | 27 min |
| Jun 1, 8:10 PM EDT | Severe Thunderstorm Warning | BOX | Hampden, Hampshire, Worcester | 44 min |
| Jun 1, 8:15 PM EDT | Special Weather Statement | BOX | Middlesex | 30 min |
| Jun 1, 8:22 PM EDT | Severe Thunderstorm Warning | BOX | Middlesex, Norfolk, Worcester | 38 min |
| Jun 1, 8:39 PM EDT | Special Weather Statement | BOX | Essex, Middlesex, Suffolk | 66 min |
| Jun 1, 8:47 PM EDT | Special Marine Warning | BOX | 58 min | |
| Jun 1, 8:48 PM EDT | Severe Thunderstorm Warning | BOX | Barnstable, Essex, Middlesex, Norfolk, Plymouth, Suffolk and 1 more | 42 min |
| Jun 1, 9:03 PM EDT | Special Marine Warning | BOX | 57 min | |
| Jun 1, 9:22 PM EDT | Special Weather Statement | BOX | Dukes | 53 min |
| Jun 1, 9:34 PM EDT | Special Marine Warning | BOX | 56 min | |
| Jun 1, 9:34 PM EDT | Special Weather Statement | BOX | Norfolk, Suffolk | 56 min |
| Jun 1, 9:54 PM EDT | Special Marine Warning | BOX | 50 min | |
| Jun 1, 9:58 PM EDT | Special Marine Warning | BOX | 62 min | |
| Jun 1, 10:53 PM EDT | Special Weather Statement | BOX | Barnstable | 37 min |
| Jun 1, 10:55 PM EDT | Special Marine Warning | BOX | 40 min | |
| Jun 1, 11:49 PM EDT | Special Marine Warning | BOX | 26 min | |
| Jun 1, 11:55 PM EDT | Special Weather Statement | BOX | Nantucket | 50 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.