Alert archive / Massachusetts / Severe Thunderstorm Warnings in 2016
Severe Thunderstorm Warning 20, NWS Boston/Norton, MA
NWS Boston/Norton, MA issued this severe thunderstorm warning at Jun 21, 2016, 4:02 AM EDT for Bristol County, Norfolk County, Massachusetts. It was in force for 43 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 21, 2016, 4:02 AM EDT (08:02 UTC)
- Expired
- Jun 21, 2016, 4:45 AM EDT
- In force
- 43 min
- Issued by
- NWS Boston/Norton, MA
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Bristol County, MA, Norfolk County, MA
The radar
The Boston radar (KBOX), 22 km from the middle of the area, began a volume at 08:02 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 nearest sounding before it
Chatham, MA (KCHH), launched 00:00Z, 8.0 hours before the alert went out and 122 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
- 2021 m above ground
- 0-6 km bulk shear
- 26 kt
- 0-1 km storm-relative helicity
- 56 m²/s²
- 0-3 km storm-relative helicity
- 95 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
236
WUUS51 KBOX 210802
SVRBOX
MAC005-021-210845-
/O.NEW.KBOX.SV.W.0020.160621T0802Z-160621T0845Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TAUNTON MA
402 AM EDT TUE JUN 21 2016
THE NATIONAL WEATHER SERVICE IN TAUNTON HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
NORTHWESTERN BRISTOL COUNTY IN SOUTHEASTERN MASSACHUSETTS...
SOUTHWESTERN NORFOLK COUNTY IN EASTERN MASSACHUSETTS...
* UNTIL 445 AM EDT
* AT 400 AM EDT...A SEVERE THUNDERSTORM WAS LOCATED OVER MENDON
AND MILFORD...MOVING SOUTHEAST AT 35 MPH.
HAZARD...60 MPH WIND GUSTS.
SOURCE...RADAR INDICATED.
IMPACT...EXPECT DAMAGE TO ROOFS...SIDING...AND TREES.
* LOCATIONS IMPACTED INCLUDE...
FRANKLIN...NORTH ATTLEBOROUGH...MILFORD...STOUGHTON...ATTLEBORO...
WALPOLE...MANSFIELD...EASTON...NORTON...SHARON...FOXBOROUGH...
BELLINGHAM...HOLLISTON...MEDWAY...NORFOLK...WRENTHAM...
BLACKSTONE...PLAINVILLE...MILLIS AND MENDON.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.
&&
LAT...LON 4208 7108 4191 7118 4198 7138 4202 7138
4202 7150 4212 7150 4213 7148 4215 7148
4218 7144
TIME...MOT...LOC 0800Z 292DEG 29KT 4210 7154
HAIL...<.75IN
WIND...60MPH
$$
WTB2 follow-up statements
133
WWUS51 KBOX 210824
SVSBOX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TAUNTON MA
424 AM EDT TUE JUN 21 2016
MAC005-021-210845-
/O.CON.KBOX.SV.W.0020.000000T0000Z-160621T0845Z/
BRISTOL MA-NORFOLK MA-
424 AM EDT TUE JUN 21 2016
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 445 AM EDT
FOR NORTHWESTERN BRISTOL AND SOUTHWESTERN NORFOLK COUNTIES...
AT 423 AM EDT...A SEVERE THUNDERSTORM WAS LOCATED OVER
PLAINVILLE AND NORTH ATTLEBOROUGH...MOVING EAST AT 35 MPH.
HAZARD...60 MPH WIND GUSTS.
SOURCE...RADAR INDICATED.
IMPACT...EXPECT DAMAGE TO ROOFS...SIDING...AND TREES.
LOCATIONS IMPACTED INCLUDE...
FRANKLIN...NORTH ATTLEBOROUGH...MILFORD...STOUGHTON...ATTLEBORO...
WALPOLE...MANSFIELD...EASTON...NORTON...SHARON...FOXBOROUGH...
BELLINGHAM...HOLLISTON...MEDWAY...NORFOLK...WRENTHAM...BLACKSTONE...
PLAINVILLE...MILLIS AND MENDON.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.
&&
LAT...LON 4208 7108 4191 7118 4198 7138 4202 7138
4202 7150 4212 7150 4213 7148 4215 7148
4218 7144
TIME...MOT...LOC 0823Z 292DEG 29KT 4203 7130
HAIL...<.75IN
WIND...60MPH
$$
WTB407
WWUS51 KBOX 210841
SVSBOX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TAUNTON MA
441 AM EDT TUE JUN 21 2016
MAC005-021-210851-
/O.EXP.KBOX.SV.W.0020.000000T0000Z-160621T0845Z/
BRISTOL MA-NORFOLK MA-
441 AM EDT TUE JUN 21 2016
...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN BRISTOL AND
SOUTHWESTERN NORFOLK COUNTIES WILL EXPIRE AT 445 AM EDT...
THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE
LIMITS...AND NO LONGER POSES AN IMMEDIATE THREAT TO LIFE OR PROPERTY.
THEREFORE...THE WARNING WILL BE ALLOWED TO EXPIRE. HOWEVER HEAVY RAIN
IS STILL POSSIBLE WITH THIS THUNDERSTORM.
LAT...LON 4208 7108 4191 7118 4198 7138 4202 7138
4202 7150 4212 7150 4213 7148 4215 7148
4218 7144
TIME...MOT...LOC 0837Z 292DEG 29KT 4203 7130
$$
WTBThe office that day
Everything else NWS Boston/Norton, MA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 21, 1:39 AM EDT | Special Weather Statement | BOX | Franklin | 51 min |
| Jun 21, 3:05 AM EDT | Special Weather Statement | BOX | Middlesex, Worcester | 55 min |
| Jun 21, 3:22 AM EDT | Special Weather Statement | BOX | Hampden, Hampshire | 53 min |
| Jun 21, 4:05 AM EDT | Severe Thunderstorm Warning | BOX | Hampden | 40 min |
| Jun 21, 4:18 AM EDT | Special Marine Warning | BOX | 87 min | |
| Jun 21, 4:34 AM EDT | Special Marine Warning | BOX | 86 min | |
| Jun 21, 4:56 AM EDT | Special Marine Warning | BOX | 2 hr | |
| Jun 21, 5:12 AM EDT | Severe Thunderstorm Warning | BOX | Bristol | 48 min |
| Jun 21, 5:38 AM EDT | Special Marine Warning | BOX | 112 min | |
| Jun 21, 5:44 AM EDT | Special Marine Warning | BOX | 61 min | |
| Jun 21, 3:39 PM EDT | Small Craft Advisory for Hazardous Seas | BOX | 39 hr |
Nearby
Severe Thunderstorm Warnings in Massachusetts, 2016Every severe thunderstorm warning in 2016
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.