Alert archive / Massachusetts / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 53, NWS Boston/Norton, MA
NWS Boston/Norton, MA issued this severe thunderstorm warning at Jul 18, 2012, 2:44 PM EDT for Hampden County, Norfolk County, Worcester County, Massachusetts; Northeastern Connecticut Planning Region, Connecticut; Providence County, Rhode Island. It was in force for 61 min. 10 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
- Jul 18, 2012, 2:44 PM EDT (18:44 UTC)
- Expired
- Jul 18, 2012, 3:45 PM EDT
- In force
- 61 min
- Issued by
- NWS Boston/Norton, MA
- Area
- Storm-based polygon
Counties Northeastern Connecticut Planning Region, CT, Hampden County, MA, Norfolk County, MA, Worcester County, MA, Providence County, RI
The radar
The Boston radar (KBOX), 67 km from the middle of the area, began a volume at 18:46 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 |
|---|---|---|---|
| Jul 18, 2:50 PM EDT | HAIL 1.75 | Eastford, CT | HAIL RANGED FROM DIME TO GOLFBALL SIZE |
| Jul 18, 3:00 PM EDT | HAIL 1.75 | Putnam, CT | |
| Jul 18, 3:00 PM EDT | HAIL 1.75 | Thompson, CT | |
| Jul 18, 3:02 PM EDT | HAIL 1.75 | Burrillville, RI | |
| Jul 18, 3:03 PM EDT | HAIL 1 | Burrillville, RI | |
| Jul 18, 3:13 PM EDT | HAIL 1.75 | Uxbridge, MA | |
| Jul 18, 3:15 PM EDT | TSTM WND DMG | Smithfield, RI | TREES DOWN AT ROUTE 7 AND ROUTE 5 |
| Jul 18, 3:15 PM EDT | HAIL 1.75 | Smithfield, RI | |
| Jul 18, 3:18 PM EDT | HAIL 0.88 | North Smithfield, RI | |
| Jul 18, 3:20 PM EDT | HAIL 0.88 | Pomfret, CT |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jul 18, 12:20 PM EDT | Severe Thunderstorm Watch | SPC | 9 hr |
The nearest sounding before it
Brookhaven, NY (KOKX), launched 12:00Z, 6.7 hours before the alert went out and 149 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
- 2129 J/kg
- Mixed-layer CIN
- -147 J/kg
- Mixed-layer LCL
- 1491 m above ground
- 0-6 km bulk shear
- 30 kt
- 0-1 km storm-relative helicity
- 82 m²/s²
- 0-3 km storm-relative helicity
- 95 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
423 WUUS51 KBOX 181844 SVRBOX CTC013-015-MAC013-021-027-RIC007-181945- /O.NEW.KBOX.SV.W.0053.120718T1844Z-120718T1945Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE TAUNTON MA 244 PM EDT WED JUL 18 2012 THE NATIONAL WEATHER SERVICE IN TAUNTON HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... EXTREME EAST CENTRAL HAMPDEN COUNTY IN WESTERN MASSACHUSETTS... EXTREME SOUTHWESTERN NORFOLK COUNTY IN EASTERN MASSACHUSETTS... NORTHWESTERN PROVIDENCE COUNTY IN RHODE ISLAND... EXTREME NORTHEASTERN TOLLAND COUNTY IN NORTHERN CONNECTICUT... NORTHERN WINDHAM COUNTY IN NORTHERN CONNECTICUT... EXTREME SOUTHEASTERN WORCESTER COUNTY IN CENTRAL MASSACHUSETTS... * UNTIL 345 PM EDT * AT 242 PM EDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING HALF DOLLAR SIZE HAIL AND DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED NEAR TOLLAND...OR 10 MILES NORTHWEST OF PUTNAM...AND MOVING EAST AT 30 MPH. * LOCATIONS IMPACTED INCLUDE... WOONSOCKET...PUTNAM...BLACKSTONE...MILLVILLE... NORTH SMITHFIELD...SOUTHBRIDGE...WEBSTER...GLOCESTER... SMITHFIELD...WHITINSVILLE...BURRILLVILLE...MILLBURY... HOPEDALE...MENDON...UXBRIDGE...DOUGLAS...HOLLAND...WALES... THOMPSON AND TOLLAND. PRECAUTIONARY/PREPAREDNESS ACTIONS... SEVERE THUNDERSTORMS PRODUCE DAMAGING WINDS IN EXCESS OF 60 MPH... DESTRUCTIVE HAIL...DEADLY LIGHTNING AND VERY HEAVY RAIN. FOR YOUR PROTECTION...MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME OR BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO DO NOT DRIVE INTO AREAS WHERE WATER COVERS THE ROAD. && LAT...LON 4208 7225 4214 7153 4187 7146 4189 7224 TIME...MOT...LOC 1842Z 269DEG 26KT 4199 7208 $$ FRANK
1 follow-up statement
837 WWUS51 KBOX 181852 SVSBOX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE TAUNTON MA 252 PM EDT WED JUL 18 2012 CTC013-015-MAC013-021-027-RIC007-181945- /O.CON.KBOX.SV.W.0053.000000T0000Z-120718T1945Z/ WINDHAM CT-TOLLAND CT-HAMPDEN MA-NORFOLK MA-WORCESTER MA- PROVIDENCE RI- 252 PM EDT WED JUL 18 2012 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 345 PM EDT FOR NORTHERN WINDHAM...NORTHEASTERN TOLLAND...EXTREME EAST CENTRAL HAMPDEN...EXTREME SOUTHWESTERN NORFOLK...EXTREME SOUTHEASTERN WORCESTER AND NORTHWESTERN PROVIDENCE COUNTIES... AT 246 PM EDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING LARGE DAMAGING HAIL UP TO GOLF BALL SIZE AND DESTRUCTIVE WINDS IN EXCESS OF 70 MPH. THIS STORM WAS LOCATED NEAR WOODSTOCK...OR 8 MILES NORTHWEST OF PUTNAM...MOVING EAST AT 30 MPH. IN ADDITION...THERE ARE SOME SIGNS OF ROTATION NEAR BURRILLVILLE RHODE ISLAND. WHILE ITS NOT IMMINENT...THERE IS A LOW RISK OF A TORNADO DEVELOPING. LOCATIONS IMPACTED INCLUDE... WOONSOCKET...PUTNAM...BLACKSTONE...MILLVILLE...NORTH SMITHFIELD... SOUTHBRIDGE...WEBSTER...GLOCESTER...SMITHFIELD...LINCOLN... WHITINSVILLE...BURRILLVILLE...MILLBURY...HOPEDALE...MENDON... UXBRIDGE...DOUGLAS...HOLLAND...WALES AND THOMPSON. PRECAUTIONARY/PREPAREDNESS ACTIONS... SEVERE THUNDERSTORMS PRODUCE DAMAGING WINDS IN EXCESS OF 60 MILES PER HOUR...DESTRUCTIVE HAIL...DEADLY LIGHTNING AND VERY HEAVY RAIN. FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME OR BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO DO NOT DRIVE INTO AREAS WHERE WATER COVERS THE ROAD. THIS IS A SUPERCELL THUNDERSTORM. DUE TO THE ROTATING NATURE OF THESE STORMS...THEY ARE CAPABLE OF PRODUCING ALL TYPES OF SEVERE WEATHER...INCLUDING EXTREMELY LARGE HAIL...DESTRUCTIVE STRAIGHT LINE WINDS...AND POSSIBLY TORNADOES. MOVE QUICKLY TO A SAFE SHELTER...PREFERABLY INTO A BASEMENT...OR AN INTERIOR ROOM SUCH AS A BATHROOM OR CLOSET. && LAT...LON 4208 7225 4214 7153 4187 7145 4189 7223 TIME...MOT...LOC 1846Z 269DEG 26KT 4199 7204 $$ FRANK
The office that day
Everything else NWS Boston/Norton, MA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 17, 8:23 PM EDT | Special Weather Statement | BOX | Essex | 67 min |
| Jul 18, 12:37 PM EDT | Special Weather Statement | BOX | Middlesex | 53 min |
| Jul 18, 12:41 PM EDT | Heat Advisory | BOX | Bristol, Essex, Franklin, Hampden, Hampshire, Middlesex and 2 more | 6 hr |
| Jul 18, 12:54 PM EDT | Severe Thunderstorm Warning | BOX | Essex, Middlesex | 66 min |
| Jul 18, 1:21 PM EDT | Special Marine Warning | BOX | 84 min | |
| Jul 18, 1:29 PM EDT | Flash Flood Warning | BOX | Essex, Middlesex | 98 min |
| Jul 18, 1:43 PM EDT | Severe Thunderstorm Warning | BOX | Essex, Middlesex, Suffolk | 36 min |
| Jul 18, 1:45 PM EDT | Special Marine Warning | BOX | 60 min | |
| Jul 18, 1:50 PM EDT | Special Weather Statement | BOX | Hampden | 40 min |
| Jul 18, 2:04 PM EDT | Severe Thunderstorm Warning | BOX | Hampden, Hampshire, Worcester | 56 min |
| Jul 18, 2:04 PM EDT | Tornado Warning | BOX | Essex, Suffolk | 12 min |
| Jul 18, 2:21 PM EDT | Severe Thunderstorm Warning | BOX | Essex, Middlesex, Suffolk | 39 min |
| Jul 18, 2:21 PM EDT | Severe Thunderstorm Warning | BOX | Hampden | 54 min |
| Jul 18, 2:24 PM EDT | Flash Flood Warning | BOX | Hampden, Worcester | 3 hr |
| Jul 18, 2:30 PM EDT | Special Marine Warning | BOX | 90 min | |
| Jul 18, 2:39 PM EDT | Severe Thunderstorm Warning | BOX | Bristol, Middlesex, Norfolk, Plymouth, Suffolk, Worcester | 51 min |
| Jul 18, 3:09 PM EDT | Severe Thunderstorm Warning | BOX | Bristol, Norfolk, Worcester | 51 min |
| Jul 18, 3:46 PM EDT | Severe Thunderstorm Warning | BOX | Barnstable, Bristol, Norfolk, Plymouth | 59 min |
| Jul 18, 4:04 PM EDT | Special Marine Warning | BOX | 56 min | |
| Jul 18, 4:25 PM EDT | Special Marine Warning | BOX | 80 min | |
| Jul 18, 4:42 PM EDT | Severe Thunderstorm Warning | BOX | Barnstable, Plymouth | 36 min |
| Jul 18, 5:08 PM EDT | Special Weather Statement | BOX | Norfolk, Suffolk | 52 min |
| Jul 18, 5:24 PM EDT | Flash Flood Warning | BOX | Middlesex, Norfolk, Suffolk | 78 min |
| Jul 18, 5:27 PM EDT | Severe Thunderstorm Warning | BOX | Middlesex, Norfolk, Plymouth, Suffolk | 48 min |
| Jul 18, 5:30 PM EDT | Special Marine Warning | BOX | 54 min | |
| Jul 18, 6:08 PM EDT | Special Marine Warning | BOX | 67 min | |
| Jul 18, 6:27 PM EDT | Special Weather Statement | BOX | Essex | 33 min |
| Jul 18, 2:29 PM EDT | Severe Thunderstorm Warning | BOX | Capitol Planning Region, Northeastern Connecticut Planning Region | 61 min |
| Jul 18, 4:57 PM EDT | Severe Thunderstorm Warning | BOX | Providence | 13 min |
Nearby
Severe Thunderstorm Warnings in Massachusetts, 2012Severe Thunderstorm Warnings in Connecticut, 2012Severe Thunderstorm Warnings in Rhode Island, 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.