Alert archive / Massachusetts / Severe Thunderstorm Warnings in 2011
Severe Thunderstorm Warning 63, NWS Boston/Norton, MA
NWS Boston/Norton, MA issued this severe thunderstorm warning at Jul 8, 2011, 7:02 AM EDT for Bristol County, Norfolk County, Worcester County, Massachusetts; Providence County, Rhode Island. It was in force for 34 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
- Jul 8, 2011, 7:02 AM EDT (11:02 UTC)
- Expired
- Jul 8, 2011, 7:36 AM EDT
- In force
- 34 min
- Issued by
- NWS Boston/Norton, MA
- Area
- Storm-based polygon
Counties Bristol County, MA, Norfolk County, MA, Worcester County, MA, Providence County, RI
The radar
The Boston radar (KBOX), 31 km from the middle of the area, began a volume at 11:05 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, 11.0 hours before the alert went out and 133 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
- 1370 m above ground
- 0-6 km bulk shear
- 35 kt
- 0-1 km storm-relative helicity
- 50 m²/s²
- 0-3 km storm-relative helicity
- 69 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
476
WUUS51 KBOX 081102
SVRBOX
MAC005-021-027-RIC007-081145-
/O.NEW.KBOX.SV.W.0063.110708T1102Z-110708T1145Z/
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TAUNTON MA
702 AM EDT FRI JUL 8 2011
THE NATIONAL WEATHER SERVICE IN TAUNTON HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
NORTHEASTERN PROVIDENCE COUNTY IN RHODE ISLAND...
THIS INCLUDES THE CITY OF WOONSOCKET...
SOUTHEASTERN WORCESTER COUNTY IN CENTRAL MASSACHUSETTS...
THIS INCLUDES THE CITY OF MILFORD...
SOUTHWESTERN NORFOLK COUNTY IN EASTERN MASSACHUSETTS...
THIS INCLUDES THE CITY OF FRANKLIN...
NORTHWESTERN BRISTOL COUNTY IN SOUTHEAST MASSACHUSETTS...
THIS INCLUDES THE CITIES OF...NORTH ATTLEBOROUGH...ATTLEBOROUGH...
* UNTIL 745 AM EDT
* AT 700 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 7 MILES
WEST OF MILLVILLE...OR 11 MILES WEST OF WOONSOCKET...AND WAS MOVING
EAST AT 30 MPH.
* SOME LOCATIONS IN THE WARNING INCLUDE...UXBRIDGE...NORTH
SMITHFIELD...MENDON...HOPEDALE...BLACKSTONE...LINCOLN...
BELLINGHAM...CUMBERLAND...MEDWAY...MILLIS...PLAINVILLE...
WRENTHAM...NORFOLK...WALPOLE AND FOXBOROUGH.
SEVERE THUNDERSTORMS PRODUCE DAMAGING WINDS AND LARGE HAIL...AS WELL
AS DEADLY LIGHTNING AND TORRENTIAL RAIN. GET TO SAFE SHELTER NOW...
INSIDE A STURDY BUILDING OR IN A VEHICLE. DO NOT SEEK SHELTER UNDER
TREES. IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE STRUCK BY
LIGHTNING. DRIVERS SHOULD BE ALERT FOR PONDING OF WATER AND AVOID
FLOODED ROADS.
&&
LAT...LON 4193 7165 4214 7166 4216 7148 4216 7146
4216 7145 4219 7122 4188 7127
TIME...MOT...LOC 1102Z 267DEG 25KT 4203 7169
$$
SIPPRELL2 follow-up statements
230
WWUS51 KBOX 081129
SVSBOX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TAUNTON MA
729 AM EDT FRI JUL 8 2011
MAC027-081139-
/O.CAN.KBOX.SV.W.0063.000000T0000Z-110708T1145Z/
WORCESTER MA-
729 AM EDT FRI JUL 8 2011
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN WORCESTER COUNTY
IS CANCELLED...
LAT...LON 4192 7153 4202 7150 4212 7150 4213 7147
4215 7147 4214 7146 4215 7143 4216 7122
4188 7127
TIME...MOT...LOC 1129Z 267DEG 25KT 4204 7144
$$
MAC005-021-RIC007-081145-
/O.CON.KBOX.SV.W.0063.000000T0000Z-110708T1145Z/
NORFOLK MA-PROVIDENCE RI-BRISTOL MA-
729 AM EDT FRI JUL 8 2011
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 745 AM EDT
FOR SOUTHWESTERN NORFOLK COUNTY IN EASTERN MASSACHUSETTS...AND
NORTHWESTERN BRISTOL COUNTY IN SOUTHEAST MASSACHUSETTS...AND
NORTHEASTERN PROVIDENCE COUNTY IN RHODE ISLAND...
AT 724 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 WOONSOCKET...MOVING EAST AT 30 MPH.
OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
MEDWAY...FRANKLIN...PLAINVILLE...WRENTHAM...NORTH ATTLEBOROUGH...
NORFOLK...ATTLEBOROUGH...WALPOLE AND FOXBOROUGH
PRECAUTIONARY/PREPAREDNESS ACTIONS...
SEVERE THUNDERSTORMS PRODUCE DAMAGING WINDS AND LARGE HAIL...AS WELL
AS DEADLY LIGHTNING AND TORRENTIAL RAIN. GET TO SAFE SHELTER
NOW...INSIDE A STURDY BUILDING OR IN A VEHICLE. DO NOT SEEK SHELTER
UNDER TREES. IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE
STRUCK BY LIGHTNING. DRIVERS SHOULD BE ALERT FOR PONDING OF WATER
AND AVOID FLOODED ROADS.
&&
LAT...LON 4192 7153 4202 7150 4212 7150 4213 7147
4215 7147 4214 7146 4215 7143 4216 7122
4188 7127
TIME...MOT...LOC 1129Z 267DEG 25KT 4204 7144
$$
SIPPRELL621
WWUS51 KBOX 081136
SVSBOX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TAUNTON MA
736 AM EDT FRI JUL 8 2011
MAC005-021-RIC007-081145-
/O.CAN.KBOX.SV.W.0063.000000T0000Z-110708T1145Z/
NORFOLK MA-PROVIDENCE RI-BRISTOL MA-
736 AM EDT FRI JUL 8 2011
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHWESTERN NORFOLK COUNTY IN
EASTERN MASSACHUSETTS...AND NORTHWESTERN BRISTOL COUNTY IN SOUTHEAST
MASSACHUSETTS...AND NORTHEASTERN PROVIDENCE COUNTY IN RHODE ISLAND IS
CANCELLED...
THE STORM HAS WEAKENED AND IS NO LONGER SEVERE. THOUGH THE STORM
HAS WEAKENED ACROSS THE WARNED AREA...SMALL HAIL ALONG WITH FREQUENT
LIGHTNING AND GUSTY WINDS IS STILL POSSIBLE.
LAT...LON 4192 7153 4202 7150 4212 7150 4213 7147
4215 7147 4214 7146 4215 7143 4216 7122
4188 7127
TIME...MOT...LOC 1135Z 267DEG 25KT 4204 7138
$$
SIPPRELLThe office that day
Everything else NWS Boston/Norton, MA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 8, 5:03 AM EDT | Special Weather Statement | BOX | Hampshire | 42 min |
| Jul 8, 5:18 AM EDT | Severe Thunderstorm Warning | BOX | Franklin, Hampden, Hampshire, Worcester | 42 min |
| Jul 8, 6:00 AM EDT | Special Weather Statement | BOX | Worcester | 45 min |
| Jul 8, 6:34 AM EDT | Special Weather Statement | BOX | Worcester | 56 min |
| Jul 8, 6:41 AM EDT | Severe Thunderstorm Warning | BOX | Middlesex, Worcester | 38 min |
| Jul 8, 7:34 AM EDT | Special Weather Statement | BOX | Norfolk | 41 min |
| Jul 8, 8:07 AM EDT | Special Weather Statement | BOX | Plymouth | 53 min |
| Jul 8, 8:20 AM EDT | Areal Flood Advisory | BOX | Bristol, Norfolk, Plymouth | 3 hr |
| Jul 8, 8:34 AM EDT | Areal Flood Advisory | BOX | Bristol | 71 min |
| Jul 8, 8:39 AM EDT | Special Weather Statement | BOX | Hampden, Hampshire | 66 min |
| Jul 8, 8:57 AM EDT | Severe Thunderstorm Warning | BOX | Franklin, Hampden, Hampshire, Worcester | 27 min |
| Jul 8, 9:12 AM EDT | Areal Flood Advisory | BOX | Barnstable, Bristol, Plymouth | 2 hr |
| Jul 8, 9:50 AM EDT | Special Marine Warning | BOX | 25 min | |
| Jul 8, 10:09 AM EDT | Special Weather Statement | BOX | Barnstable | 66 min |
| Jul 8, 10:43 AM EDT | Areal Flood Advisory | BOX | Barnstable | 94 min |
| Jul 8, 11:06 AM EDT | Special Marine Warning | BOX | 54 min | |
| Jul 8, 11:53 AM EDT | Special Marine Warning | BOX | 67 min | |
| Jul 8, 8:17 AM EDT | Special Weather Statement | BOX | Bristol, Kent | 58 min |
| Jul 8, 11:28 AM EDT | Special Weather Statement | BOX | Providence | 62 min |
| Jul 8, 11:46 AM EDT | Areal Flood Advisory | BOX | Kent, Providence | 93 min |
Nearby
Severe Thunderstorm Warnings in Massachusetts, 2011Severe Thunderstorm Warnings in Rhode Island, 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.