Alert archive / Massachusetts / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 3, NWS Boston/Norton, MA
NWS Boston/Norton, MA issued this severe thunderstorm warning at Mar 14, 2012, 12:43 AM EDT for Essex County, Middlesex County, Worcester County, Massachusetts. It was in force for 47 min. 4 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
- Mar 14, 2012, 12:43 AM EDT (04:43 UTC)
- Expired
- Mar 14, 2012, 1:30 AM EDT
- In force
- 47 min
- Issued by
- NWS Boston/Norton, MA
- Area
- Storm-based polygon
Counties Essex County, MA, Middlesex County, MA, Worcester County, MA
The radar
The Boston radar (KBOX), 76 km from the middle of the area, began a volume at 04:43 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 |
|---|---|---|---|
| Mar 14, 12:48 AM EDT | HAIL 1 | Shirley, MA | HAM RADIO |
| Mar 14, 12:55 AM EDT | HAIL 0.75 | Littleton, MA | |
| Mar 14, 12:57 AM EDT | HAIL 1.25 | Littleton, MA | HAM RADIO...ON HARTWELL AVENUE |
| Mar 14, 1:20 AM EDT | HAIL 0.88 | Wilmington, MA | HAM RADIO |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Chatham, MA (KCHH), launched 00:00Z, 4.7 hours before the alert went out and 156 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
- 640 m above ground
- 0-6 km bulk shear
- 22 kt
- 0-1 km storm-relative helicity
- 106 m²/s²
- 0-3 km storm-relative helicity
- 135 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
756 WUUS51 KBOX 140443 SVRBOX MAC009-017-027-140530- /O.NEW.KBOX.SV.W.0003.120314T0443Z-120314T0530Z/ BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE TAUNTON MA 1243 AM EDT WED MAR 14 2012 THE NATIONAL WEATHER SERVICE IN TAUNTON HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... NORTHEASTERN WORCESTER COUNTY IN CENTRAL MASSACHUSETTS... WEST CENTRAL ESSEX COUNTY IN EASTERN MASSACHUSETTS... NORTHERN MIDDLESEX COUNTY IN SOUTHEAST MASSACHUSETTS... THIS INCLUDES THE CITY OF LOWELL... * UNTIL 130 AM EDT * AT 1238 AM 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 SHIRLEY...OR 8 MILES EAST OF LEOMINSTER...AND WAS MOVING EAST AT 25 MPH. * SOME LOCATIONS IN THE WARNING INCLUDE...GROTON...BOXBOROUGH... LITTLETON...WESTFORD...CARLISLE...CHELMSFORD...BILLERICA... DRACUT...TEWKSBURY AND WILMINGTON. && LAT...LON 4272 7118 4255 7113 4247 7165 4261 7169 TIME...MOT...LOC 0443Z 254DEG 22KT 4256 7158 $$ FRANK
5 follow-up statements
352 WWUS51 KBOX 140459 SVSBOX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE TAUNTON MA 1259 AM EDT WED MAR 14 2012 MAC027-140508- /O.CAN.KBOX.SV.W.0003.000000T0000Z-120314T0530Z/ WORCESTER MA- 1259 AM EDT WED MAR 14 2012 ...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN WORCESTER COUNTY IS CANCELLED... THE THUNDERSTORM THAT PROMPTED THE WARNING HAS EXITED THE REGION. THEREFORE...THE SEVERE THUNDERSTORM WARNING HAS BEEN CANCELLED. LAT...LON 4250 7148 4265 7151 4272 7118 4255 7113 TIME...MOT...LOC 0458Z 254DEG 22KT 4258 7138 $$ MAC009-017-140530- /O.CON.KBOX.SV.W.0003.000000T0000Z-120314T0530Z/ MIDDLESEX MA-ESSEX MA- 1259 AM EDT WED MAR 14 2012 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 130 AM EDT FOR WEST CENTRAL ESSEX AND NORTH CENTRAL MIDDLESEX COUNTIES... AT 1256 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED NEAR WESTFORD...OR 6 MILES SOUTHWEST OF LOWELL...MOVING EAST AT 25 MPH. OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO CARLISLE...CHELMSFORD...BILLERICA...DRACUT...TEWKSBURY...WILMINGTON AND METHUEN LAT...LON 4250 7148 4265 7151 4272 7118 4255 7113 TIME...MOT...LOC 0458Z 254DEG 22KT 4258 7138 $$ FRANK
457 WWUS51 KBOX 140502 SVSBOX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE TAUNTON MA 102 AM EDT WED MAR 14 2012 MAC009-017-140530- /O.CON.KBOX.SV.W.0003.000000T0000Z-120314T0530Z/ MIDDLESEX MA-ESSEX MA- 102 AM EDT WED MAR 14 2012 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 130 AM EDT FOR WEST CENTRAL ESSEX AND NORTH CENTRAL MIDDLESEX COUNTIES... AT 100 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED NEAR CHELMSFORD...OR NEAR LOWELL...MOVING EAST AT 25 MPH. OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO BILLERICA...DRACUT...TEWKSBURY...WILMINGTON AND METHUEN LAT...LON 4251 7144 4265 7146 4272 7118 4255 7113 TIME...MOT...LOC 0502Z 254DEG 22KT 4259 7135 $$ FRANK
326 WWUS51 KBOX 140512 SVSBOX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE TAUNTON MA 112 AM EDT WED MAR 14 2012 MAC009-017-140530- /O.CON.KBOX.SV.W.0003.000000T0000Z-120314T0530Z/ MIDDLESEX MA-ESSEX MA- 112 AM EDT WED MAR 14 2012 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 130 AM EDT FOR WEST CENTRAL ESSEX AND NORTH CENTRAL MIDDLESEX COUNTIES... AT 109 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED NEAR LOWELL...MOVING EAST AT 25 MPH. OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO TEWKSBURY...WILMINGTON AND METHUEN LAT...LON 4252 7136 4266 7136 4272 7118 4255 7113 TIME...MOT...LOC 0512Z 254DEG 22KT 4261 7127 $$ FRANK
629 WWUS51 KBOX 140520 SVSBOX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE TAUNTON MA 120 AM EDT WED MAR 14 2012 MAC009-017-140530- /O.CON.KBOX.SV.W.0003.000000T0000Z-120314T0530Z/ MIDDLESEX MA-ESSEX MA- 120 AM EDT WED MAR 14 2012 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 130 AM EDT FOR WEST CENTRAL ESSEX AND EAST CENTRAL MIDDLESEX COUNTIES... AT 117 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED NEAR TEWKSBURY...OR NEAR LOWELL...MOVING EAST AT 25 MPH. THE SEVERE THUNDERSTORM WILL OTHERWISE REMAIN OVER MAINLY RURAL AREAS OF THE INDICATED COUNTIES. LAT...LON 4253 7125 4266 7127 4272 7118 4255 7113 TIME...MOT...LOC 0521Z 254DEG 22KT 4262 7120 $$ FRANK
603 WWUS51 KBOX 140527 SVSBOX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE TAUNTON MA 127 AM EDT WED MAR 14 2012 MAC009-017-140537- /O.EXP.KBOX.SV.W.0003.000000T0000Z-120314T0530Z/ MIDDLESEX MA-ESSEX MA- 127 AM EDT WED MAR 14 2012 ...THE SEVERE THUNDERSTORM WARNING FOR WEST CENTRAL ESSEX AND EAST CENTRAL MIDDLESEX COUNTIES WILL EXPIRE AT 130 AM EDT... THE THUNDERSTORM THAT PROMPTED THE WARNING HAS EXITED THE REGION. THEREFORE...THE SEVERE THUNDERSTORM WARNING HAS BEEN ALLOWED TO EXPIRE. LAT...LON 4253 7125 4266 7127 4272 7118 4255 7113 TIME...MOT...LOC 0527Z 254DEG 22KT 4263 7115 $$ FRANK
The office that day
Everything else NWS Boston/Norton, MA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 13, 10:45 PM EDT | Special Weather Statement | BOX | Essex | 45 min |
| Mar 13, 10:51 PM EDT | Special Weather Statement | BOX | Franklin | 39 min |
| Mar 13, 11:06 PM EDT | Special Weather Statement | BOX | Franklin | 39 min |
| Mar 13, 11:24 PM EDT | Severe Thunderstorm Warning | BOX | Franklin, Worcester | 40 min |
| Mar 14, 12:10 AM EDT | Severe Thunderstorm Warning | BOX | Middlesex, Worcester | 50 min |
| Mar 14, 1:24 AM EDT | Special Weather Statement | BOX | Essex | 51 min |
Nearby
Severe Thunderstorm Warnings in Massachusetts, 2012Every severe thunderstorm warning in 2012
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.