Alert archive / Massachusetts / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 2, NWS Boston/Norton, MA
NWS Boston/Norton, MA issued this severe thunderstorm warning at Mar 14, 2012, 12:10 AM EDT for Middlesex County, Worcester County, Massachusetts; Hillsborough County, New Hampshire. It was in force for 50 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
- Mar 14, 2012, 12:10 AM EDT (04:10 UTC)
- Expired
- Mar 14, 2012, 1:00 AM EDT
- In force
- 50 min
- Issued by
- NWS Boston/Norton, MA
- Area
- Storm-based polygon
Counties Middlesex County, MA, Worcester County, MA, Hillsborough County, NH
The radar
The Boston radar (KBOX), 95 km from the middle of the area, began a volume at 04:13 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, 12:15 AM EDT | HAIL 1 | Westminster, MA | HAIL COVERED THE ROAD |
| Mar 14, 12:42 AM EDT | HAIL 0.75 | Groton, MA | |
| Mar 14, 12:43 AM EDT | HAIL 0.88 | Lunenburg, MA |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Albany, NY (KALY), launched 00:00Z, 4.2 hours before the alert went out and 172 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
- 1577 m above ground
- 0-6 km bulk shear
- 44 kt
- 0-1 km storm-relative helicity
- 60 m²/s²
- 0-3 km storm-relative helicity
- 239 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.3
The text
As transmitted, in the capitals the NWS used until 2016.
454 WUUS51 KBOX 140410 SVRBOX MAC017-027-NHC011-140500- /O.NEW.KBOX.SV.W.0002.120314T0410Z-120314T0500Z/ BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE TAUNTON MA 1210 AM EDT WED MAR 14 2012 THE NATIONAL WEATHER SERVICE IN TAUNTON HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... NORTH CENTRAL WORCESTER COUNTY IN CENTRAL MASSACHUSETTS... THIS INCLUDES THE CITY OF FITCHBURG... NORTHWESTERN MIDDLESEX COUNTY IN SOUTHEAST MASSACHUSETTS... SOUTHEASTERN HILLSBOROUGH COUNTY IN SOUTHERN NEW HAMPSHIRE... THIS INCLUDES THE CITY OF NASHUA... * UNTIL 100 AM EDT * AT 1208 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 ASHBURNHAM...OR 6 MILES WEST OF FITCHBURG...AND WAS MOVING NORTHEAST AT 25 MPH. * SOME LOCATIONS IN THE WARNING INCLUDE...ASHBY...LUNENBURG... TOWNSEND...MASON...BROOKLINE...GROTON...PEPPERELL...HOLLIS... TYNGSBORO AND DUNSTABLE. && LAT...LON 4284 7162 4265 7133 4248 7197 4264 7208 TIME...MOT...LOC 0410Z 242DEG 21KT 4260 7191 $$ FRANK
5 follow-up statements
703 WWUS51 KBOX 140419 SVSBOX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE TAUNTON MA 1219 AM EDT WED MAR 14 2012 MAC017-027-NHC011-140500- /O.CON.KBOX.SV.W.0002.000000T0000Z-120314T0500Z/ MIDDLESEX MA-WORCESTER MA-HILLSBOROUGH NH- 1219 AM EDT WED MAR 14 2012 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 100 AM EDT FOR SOUTHEASTERN HILLSBOROUGH...NORTH CENTRAL WORCESTER AND NORTHWESTERN MIDDLESEX COUNTIES... AT 1217 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED NEAR ASHBURNHAM...OR NEAR FITCHBURG...MOVING NORTHEAST AT 25 MPH. OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO ASHBY...LUNENBURG...TOWNSEND...MASON...BROOKLINE...GROTON... PEPPERELL...HOLLIS...NASHUA...TYNGSBORO AND DUNSTABLE LAT...LON 4250 7193 4263 7201 4284 7162 4265 7133 TIME...MOT...LOC 0420Z 242DEG 21KT 4263 7184 $$ FRANK
171 WWUS51 KBOX 140426 SVSBOX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE TAUNTON MA 1226 AM EDT WED MAR 14 2012 MAC017-027-NHC011-140500- /O.CON.KBOX.SV.W.0002.000000T0000Z-120314T0500Z/ MIDDLESEX MA-WORCESTER MA-HILLSBOROUGH NH- 1226 AM EDT WED MAR 14 2012 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 100 AM EDT FOR SOUTHEASTERN HILLSBOROUGH...NORTH CENTRAL WORCESTER AND NORTHWESTERN MIDDLESEX COUNTIES... AT 1221 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 FITCHBURG...MOVING NORTHEAST AT 25 MPH. OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO ASHBY...LUNENBURG...TOWNSEND...MASON...BROOKLINE...GROTON... PEPPERELL...HOLLIS...NASHUA...TYNGSBORO AND DUNSTABLE LAT...LON 4250 7192 4268 7191 4284 7162 4265 7133 TIME...MOT...LOC 0426Z 242DEG 21KT 4260 7177 $$ FRANK
242 WWUS51 KBOX 140434 SVSBOX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE TAUNTON MA 1234 AM EDT WED MAR 14 2012 MAC017-027-NHC011-140500- /O.CON.KBOX.SV.W.0002.000000T0000Z-120314T0500Z/ MIDDLESEX MA-WORCESTER MA-HILLSBOROUGH NH- 1234 AM EDT WED MAR 14 2012 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 100 AM EDT FOR SOUTH CENTRAL HILLSBOROUGH...NORTH CENTRAL WORCESTER AND NORTHWESTERN MIDDLESEX COUNTIES... AT 1230 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED NEAR LUNENBURG...OR NEAR FITCHBURG...MOVING NORTHEAST AT 25 MPH. OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO TOWNSEND...GROTON...PEPPERELL...HOLLIS...NASHUA...TYNGSBORO AND DUNSTABLE LAT...LON 4262 7183 4279 7156 4265 7133 4253 7181 TIME...MOT...LOC 0434Z 242DEG 21KT 4262 7171 $$ FRANK
772 WWUS51 KBOX 140445 SVSBOX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE TAUNTON MA 1245 AM EDT WED MAR 14 2012 MAC017-027-NHC011-140500- /O.CON.KBOX.SV.W.0002.000000T0000Z-120314T0500Z/ MIDDLESEX MA-WORCESTER MA-HILLSBOROUGH NH- 1245 AM EDT WED MAR 14 2012 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 100 AM EDT FOR SOUTHEASTERN HILLSBOROUGH...NORTHEASTERN WORCESTER AND NORTHWESTERN MIDDLESEX COUNTIES... AT 1243 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 PEPPERELL...OR 9 MILES NORTHEAST OF FITCHBURG...MOVING NORTHEAST AT 25 MPH. OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO GROTON...NASHUA...TYNGSBORO AND DUNSTABLE LAT...LON 4256 7171 4264 7171 4276 7151 4265 7133 TIME...MOT...LOC 0446Z 242DEG 21KT 4265 7163 $$ FRANK
290 WWUS51 KBOX 140450 SVSBOX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE TAUNTON MA 1250 AM EDT WED MAR 14 2012 NHC011-140459- /O.CAN.KBOX.SV.W.0002.000000T0000Z-120314T0500Z/ HILLSBOROUGH NH- 1250 AM EDT WED MAR 14 2012 ...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN HILLSBOROUGH COUNTY IS CANCELLED... THE THUNDERSTORM THAT PROMPTED THE WARNING HAS EXITED THE REGION. THEREFORE...THE SEVERE THUNDERSTORM WARNING HAS BEEN CANCELLED. LAT...LON 4256 7171 4264 7171 4270 7144 4265 7133 TIME...MOT...LOC 0449Z 242DEG 21KT 4266 7161 $$ MAC017-027-140500- /O.CON.KBOX.SV.W.0002.000000T0000Z-120314T0500Z/ MIDDLESEX MA-WORCESTER MA- 1250 AM EDT WED MAR 14 2012 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 100 AM EDT FOR NORTHEASTERN WORCESTER AND NORTHWESTERN MIDDLESEX COUNTIES... AT 1247 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 GROTON...OR 9 MILES SOUTHWEST OF NASHUA...MOVING NORTHEAST AT 25 MPH. OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO TYNGSBORO AND DUNSTABLE LAT...LON 4256 7171 4264 7171 4270 7144 4265 7133 TIME...MOT...LOC 0449Z 242DEG 21KT 4266 7161 $$ 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, 12:43 AM EDT | Severe Thunderstorm Warning | BOX | Essex, Middlesex, Worcester | 47 min |
| Mar 14, 1:24 AM EDT | Special Weather Statement | BOX | Essex | 51 min |
| Mar 13, 11:47 PM EDT | Special Weather Statement | BOX | Hillsborough | 43 min |
| Mar 13, 11:49 PM EDT | Special Weather Statement | BOX | Hillsborough | 41 min |
| Mar 13, 11:57 PM EDT | Special Weather Statement | BOX | Hillsborough | 48 min |
| Mar 14, 12:08 AM EDT | Special Weather Statement | BOX | Hillsborough | 67 min |
Nearby
Severe Thunderstorm Warnings in Massachusetts, 2012Severe Thunderstorm Warnings in New Hampshire, 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.