Alert archive / Massachusetts / Severe Thunderstorm Warnings in 2016
Severe Thunderstorm Warning 111, NWS Boston/Norton, MA
NWS Boston/Norton, MA issued this severe thunderstorm warning at Aug 14, 2016, 8:08 PM EDT for 4 counties in Massachusetts. It was in force for 52 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
- Aug 14, 2016, 8:08 PM EDT (00:08 UTC)
- Expired
- Aug 14, 2016, 9:00 PM EDT
- In force
- 52 min
- Issued by
- NWS Boston/Norton, MA
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Middlesex County, MA, Norfolk County, MA, Suffolk County, MA, Worcester County, MA
The radar
The Boston radar (KBOX), 36 km from the middle of the area, began a volume at 00:11 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, 0.1 hours before the alert went out and 118 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
- 2038 J/kg
- Mixed-layer CIN
- -74 J/kg
- Mixed-layer LCL
- 1225 m above ground
- 0-6 km bulk shear
- 29 kt
- 0-1 km storm-relative helicity
- 33 m²/s²
- 0-3 km storm-relative helicity
- 72 m²/s²
- Significant tornado parameter
- 0.3
- Supercell composite
- 1.4
The text
As transmitted.
792
WUUS51 KBOX 150008
SVRBOX
MAC017-021-025-027-150100-
/O.NEW.KBOX.SV.W.0111.160815T0008Z-160815T0100Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TAUNTON MA
808 PM EDT SUN AUG 14 2016
THE NATIONAL WEATHER SERVICE IN TAUNTON HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
NORFOLK COUNTY IN EASTERN MASSACHUSETTS...
SOUTHEASTERN WORCESTER COUNTY IN CENTRAL MASSACHUSETTS...
SUFFOLK COUNTY IN EASTERN MASSACHUSETTS...
SOUTHEASTERN MIDDLESEX COUNTY IN NORTHEASTERN MASSACHUSETTS...
* UNTIL 900 PM EDT
* AT 808 PM EDT...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
EXTENDING FROM HOPKINTON TO NEAR UPTON TO NEAR UXBRIDGE...MOVING
EAST NORTHEAST AT 35 MPH.
HAZARD...60 MPH WIND GUSTS.
SOURCE...RADAR INDICATED.
IMPACT...EXPECT DAMAGE TO ROOFS...SIDING...AND TREES.
* LOCATIONS IMPACTED INCLUDE...
BOSTON...CAMBRIDGE...QUINCY...NEWTON...SOMERVILLE...FRAMINGHAM...
WALTHAM...BROOKLINE...MARLBOROUGH...NATICK...RANDOLPH...
WATERTOWN...FRANKLIN...NEEDHAM...NORWOOD...MILFORD...WELLESLEY...
MILTON...STOUGHTON AND DEDHAM.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
CONTINUOUS CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THESE STORMS.
MOVE INDOORS IMMEDIATELY. LIGHTNING IS ONE OF NATURE'S LEADING
KILLERS. REMEMBER...IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH
TO BE STRUCK BY LIGHTNING.
TORRENTIAL RAINFALL IS OCCURRING WITH THESE STORMS...AND MAY LEAD TO
FLASH FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED ROADWAYS.
&&
LAT...LON 4239 7097 4234 7102 4233 7101 4232 7105
4230 7105 4229 7102 4230 7102 4231 7101
4228 7101 4214 7108 4199 7138 4202 7138
4202 7178 4216 7162 4234 7154 4238 7105
4235 7103 4238 7104 4237 7100 4239 7100
TIME...MOT...LOC 0008Z 270DEG 30KT 4224 7152 4215 7158 4209 7169
HAIL...<.75IN
WIND...60MPH
$$
SIPPRELL4 follow-up statements
611
WWUS51 KBOX 150024
SVSBOX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TAUNTON MA
824 PM EDT SUN AUG 14 2016
MAC027-150032-
/O.CAN.KBOX.SV.W.0111.000000T0000Z-160815T0100Z/
WORCESTER MA-
824 PM EDT SUN AUG 14 2016
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN WORCESTER COUNTY
IS CANCELLED...
THE STORMS WHICH PROMPTED THE WARNING HAVE MOVED OUT OF THE WARNED
AREA. THEREFORE...THE WARNING HAS BEEN CANCELLED.
LAT...LON 4239 7097 4234 7102 4233 7101 4232 7105
4230 7105 4230 7101 4228 7101 4214 7108
4199 7138 4202 7138 4205 7150 4217 7148
4219 7150 4220 7158 4224 7154 4238 7105
4235 7103 4238 7104 4237 7100 4239 7100
TIME...MOT...LOC 0022Z 281DEG 26KT 4220 7143 4211 7149 4205 7160
$$
MAC017-021-025-150100-
/O.CON.KBOX.SV.W.0111.000000T0000Z-160815T0100Z/
NORFOLK MA-SUFFOLK MA-MIDDLESEX MA-
824 PM EDT SUN AUG 14 2016
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 900 PM EDT
FOR NORFOLK...SUFFOLK AND SOUTHEASTERN MIDDLESEX COUNTIES...
AT 822 PM EDT...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
EXTENDING FROM HOLLISTON TO NEAR HOPEDALE TO MILLVILLE...MOVING EAST
AT 30 MPH.
HAZARD...60 MPH WIND GUSTS.
SOURCE...RADAR INDICATED.
IMPACT...EXPECT DAMAGE TO ROOFS...SIDING...AND TREES.
LOCATIONS IMPACTED INCLUDE...
MEDWAY...NORFOLK....FRANKLIN...BELLINGHAM...WRENTHAM...FOXBOROUGH.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
CONTINUOUS CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THESE STORMS.
MOVE INDOORS IMMEDIATELY. LIGHTNING IS ONE OF NATURE'S LEADING
KILLERS. REMEMBER...IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO
BE STRUCK BY LIGHTNING.
TORRENTIAL RAINFALL IS OCCURRING WITH THESE STORMS...AND MAY LEAD TO
FLASH FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED ROADWAYS.
&&
LAT...LON 4239 7097 4234 7102 4233 7101 4232 7105
4230 7105 4230 7101 4228 7101 4214 7108
4199 7138 4202 7138 4205 7150 4217 7148
4219 7150 4220 7158 4224 7154 4238 7105
4235 7103 4238 7104 4237 7100 4239 7100
TIME...MOT...LOC 0022Z 281DEG 26KT 4220 7143 4211 7149 4205 7160
HAIL...<.75IN
WIND...60MPH
$$
SIPPRELL502
WWUS51 KBOX 150030
SVSBOX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TAUNTON MA
830 PM EDT SUN AUG 14 2016
MAC017-025-150040-
/O.CAN.KBOX.SV.W.0111.000000T0000Z-160815T0100Z/
SUFFOLK MA-MIDDLESEX MA-
830 PM EDT SUN AUG 14 2016
...THE SEVERE THUNDERSTORM WARNING FOR SUFFOLK AND SOUTHEASTERN
MIDDLESEX COUNTIES IS CANCELLED...
THE STORMS WHICH PROMPTED THE WARNING HAVE WEAKENED. THEREFORE...THE
WARNING HAS BEEN CANCELLED.
LAT...LON 4214 7108 4199 7138 4202 7138 4205 7150
4215 7148 4218 7143 4218 7141 4219 7140
4220 7135 4221 7135 4222 7134
TIME...MOT...LOC 0030Z 283DEG 29KT 4218 7132 4209 7138 4203 7149
$$
MAC021-150100-
/O.CON.KBOX.SV.W.0111.000000T0000Z-160815T0100Z/
NORFOLK MA-
830 PM EDT SUN AUG 14 2016
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 900 PM EDT
FOR SOUTHWESTERN NORFOLK COUNTY...
AT 830 PM EDT...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
EXTENDING FROM MEDFIELD TO FRANKLIN TO NEAR BLACKSTONE...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...NORWOOD...MILFORD...STOUGHTON...WALPOLE...CANTON...
SHARON...FOXBOROUGH...BELLINGHAM...HOLLISTON...MEDWAY...MEDFIELD...
NORFOLK...WRENTHAM...PLAINVILLE...MILLIS AND SHERBORN.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.
CONTINUOUS CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THESE STORMS.
MOVE INDOORS IMMEDIATELY. LIGHTNING IS ONE OF NATURE'S LEADING
KILLERS. REMEMBER...IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO
BE STRUCK BY LIGHTNING.
TORRENTIAL RAINFALL IS OCCURRING WITH THESE STORMS...AND MAY LEAD TO
FLASH FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED ROADWAYS.
&&
LAT...LON 4214 7108 4199 7138 4202 7138 4205 7150
4215 7148 4218 7143 4218 7141 4219 7140
4220 7135 4221 7135 4222 7134
TIME...MOT...LOC 0030Z 283DEG 29KT 4218 7132 4209 7138 4203 7149
HAIL...<.75IN
WIND...60MPH
$$
SIPPRELL643 WWUS51 KBOX 150045 SVSBOX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE TAUNTON MA 845 PM EDT SUN AUG 14 2016 MAC021-150100- /O.CON.KBOX.SV.W.0111.000000T0000Z-160815T0100Z/ NORFOLK MA- 845 PM EDT SUN AUG 14 2016 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 900 PM EDT FOR CENTRAL NORFOLK COUNTY... AT 845 PM EDT...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE EXTENDING FROM NORWOOD TO NEAR FOXBOROUGH TO PLAINVILLE...MOVING EAST AT 35 MPH. HAZARD...60 MPH WIND GUSTS. SOURCE...RADAR INDICATED. IMPACT...EXPECT DAMAGE TO ROOFS...SIDING...AND TREES. LOCATIONS IMPACTED INCLUDE... FRANKLIN...NORWOOD...STOUGHTON...WALPOLE...CANTON...SHARON... FOXBOROUGH...WESTWOOD...MEDFIELD...NORFOLK...WRENTHAM AND PLAINVILLE. PRECAUTIONARY/PREPAREDNESS ACTIONS... CONTINUOUS CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THESE STORMS. MOVE INDOORS IMMEDIATELY. LIGHTNING IS ONE OF NATURE'S LEADING KILLERS. REMEMBER...IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE STRUCK BY LIGHTNING. TORRENTIAL RAINFALL IS OCCURRING WITH THESE STORMS...AND MAY LEAD TO FLASH FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED ROADWAYS. && LAT...LON 4203 7129 4208 7137 4221 7130 4214 7108 TIME...MOT...LOC 0045Z 270DEG 30KT 4218 7117 4209 7123 4203 7134 HAIL...<.75IN WIND...60MPH $$ SIPPRELL
404
WWUS51 KBOX 150055
SVSBOX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TAUNTON MA
855 PM EDT SUN AUG 14 2016
MAC021-150105-
/O.EXP.KBOX.SV.W.0111.000000T0000Z-160815T0100Z/
NORFOLK MA-
855 PM EDT SUN AUG 14 2016
...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL NORFOLK COUNTY WILL
EXPIRE AT 900 PM EDT...
THE STORMS WHICH PROMPTED THE WARNING HAVE WEAKENED BELOW SEVERE
LIMITS...AND HAVE EXITED THE WARNED AREA. THEREFORE...THE WARNING
WILL BE ALLOWED TO EXPIRE.
LAT...LON 4203 7129 4208 7137 4221 7130 4214 7108
TIME...MOT...LOC 0054Z 270DEG 30KT 4218 7117 4209 7123 4203 7134
$$
SIPPRELLThe office that day
Everything else NWS Boston/Norton, MA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 14, 8:15 PM EDT | Special Marine Warning | BOX | 90 min | |
| Aug 14, 8:42 PM EDT | Special Weather Statement | BOX | Norfolk | 48 min |
| Aug 14, 8:43 PM EDT | Severe Thunderstorm Warning | BOX | Norfolk | 12 min |
| Aug 15, 3:30 PM EDT | Small Craft Advisory | BOX | 52 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.