Alert archive / Massachusetts / Severe Thunderstorm Warnings in 2011
Severe Thunderstorm Warning 23, NWS Boston/Norton, MA
NWS Boston/Norton, MA issued this severe thunderstorm warning at Jun 1, 2011, 8:22 PM EDT for Middlesex County, Norfolk County, Worcester County, Massachusetts. It was in force for 38 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, 8:22 PM EDT (00:22 UTC)
- Expired
- Jun 1, 2011, 9:00 PM EDT
- In force
- 38 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), 80 km from the middle of the area, began a volume at 00:22 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
Albany, NY (KALY), launched 00:00Z, 0.4 hours before the alert went out and 160 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
- 3154 m above ground
- 0-6 km bulk shear
- 53 kt
- 0-1 km storm-relative helicity
- 96 m²/s²
- 0-3 km storm-relative helicity
- 187 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
358 WUUS51 KBOX 020022 SVRBOX MAC017-021-027-020100- /O.NEW.KBOX.SV.W.0023.110602T0022Z-110602T0100Z/ BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE TAUNTON MA 822 PM EDT WED JUN 1 2011 THE NATIONAL WEATHER SERVICE IN TAUNTON HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... CENTRAL WORCESTER COUNTY IN CENTRAL MASSACHUSETTS... THIS INCLUDES THE CITY OF WORCESTER... EXTREME NORTH CENTRAL NORFOLK COUNTY IN EASTERN MASSACHUSETTS... SOUTH CENTRAL MIDDLESEX COUNTY IN SOUTHEAST MASSACHUSETTS... THIS INCLUDES THE CITY OF FRAMINGHAM... * UNTIL 900 PM EDT * AT 817 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED NEAR EAST BROOKFIELD...OR 12 MILES WEST OF WORCESTER...AND WAS MOVING NORTHEAST AT 50 MPH. * SOME LOCATIONS IN THE WARNING INCLUDE...LEICESTER...PAXTON... AUBURN...RUTLAND...HUBBARDSTON...HOLDEN...PRINCETON...WEST BOYLSTON...SHREWSBURY...BOYLSTON...STERLING...WESTBOROUGH... NORTHBOROUGH...CLINTON...BERLIN...SOUTHBOROUGH...MARLBOROUGH... HUDSON...SUDBURY AND WAYLAND. 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 4254 7208 4233 7121 4214 7204 4232 7221 TIME...MOT...LOC 0022Z 240DEG 44KT 4227 7198 $$ DOODY
1 follow-up statement
905 WWUS51 KBOX 020052 SVSBOX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE TAUNTON MA 852 PM EDT WED JUN 1 2011 MAC017-021-027-020102- /O.EXP.KBOX.SV.W.0023.000000T0000Z-110602T0100Z/ MIDDLESEX MA-WORCESTER MA-NORFOLK MA- 852 PM EDT WED JUN 1 2011 ...THE SEVERE THUNDERSTORM WARNING FOR EXTREME NORTH CENTRAL NORFOLK...CENTRAL WORCESTER AND SOUTH CENTRAL MIDDLESEX COUNTIES WILL EXPIRE AT 900 PM EDT... A TORNADO WATCH REMAINS IN EFFECT UNTIL 1100 PM EDT WEDNESDAY EVENING FOR NORTHERN CONNECTICUT AND MASSACHUSETTS AND SOUTHERN NEW HAMPSHIRE AND CENTRAL RHODE ISLAND. LAT...LON 4254 7208 4233 7121 4214 7204 4232 7221 TIME...MOT...LOC 0052Z 240DEG 44KT 4245 7155 $$ DOODY
The 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, 8:39 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, 8:58 PM EDT | Severe Thunderstorm Warning | BOX | Middlesex, Norfolk, Worcester | 32 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.