Alert archive / Massachusetts / Tornado Warnings in 2014
Tornado Warning 6, NWS Boston/Norton, MA
NWS Boston/Norton, MA issued this tornado warning at Aug 31, 2014, 8:14 PM EDT for Middlesex County, Worcester County, Massachusetts. It was in force for 34 min. 8 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
- Aug 31, 2014, 8:14 PM EDT (00:14 UTC)
- Expired
- Aug 31, 2014, 8:48 PM EDT
- In force
- 34 min
- Issued by
- NWS Boston/Norton, MA
- Area
- Storm-based polygon
Counties Middlesex County, MA, Worcester County, MA
The radar
The Boston radar (KBOX), 59 km from the middle of the area, began a volume at 00:15 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 |
|---|---|---|---|
| Aug 31, 8:20 PM EDT | TSTM WND DMG | Worcester, MA | SEVERAL LARGE TREE LIMBS DOWN IN VERNON HILLS AREA... 8 INCH DIAMETER |
| Aug 31, 8:21 PM EDT | TSTM WND DMG | Worcester, MA | TREE DOWN ON A HOUSE ON PILGRIM AVE. WIRES DOWN...CAUSING A FIRE. |
| Aug 31, 8:21 PM EDT | TSTM WND DMG | Worcester, MA | TREE DOWN ON PERRY AVENUE. TREES AND WIRES DOWN ON VERNON HILL AND STERLING ST. TREES DOWN ON MULTIPLE CARS ON STERLING ST. |
| Aug 31, 8:23 PM EDT | TSTM WND DMG | Worcester, MA | DEBRIS...LEAVES... SIDING AND GUTTERS IN ROADWAY ALONG PLANTATION ST...GRAFTON ST... ACTON ST AND HAMILTON ST. LARGE BRANCHES DOWN ON HEYWOOD ST...VALE ST AND STONEWALL ST. DAMAGE EXTENDS THROUGH HATFIELD ST. TREE BRANCHES ON CARS AND HOUSES. |
| Aug 31, 8:23 PM EDT | TSTM WND DMG | Worcester, MA | MULTIPLE BRANCHES AND TREES DOWN ON GRANITE ST. MULTIPLE TREES DOWN ON GORDON ST. |
| Aug 31, 8:23 PM EDT | TSTM WND DMG | Worcester, MA | MULTIPLE LARGE BRANCHES...AS BIG AS 13 INCHES...DOWNED AT SPURR ST AND PROVIDENCE ST |
| Aug 31, 8:23 PM EDT | TSTM WND DMG | Worcester, MA | TREE AND WIRES DOWN ON NORTH WOODFORD ST |
| Aug 31, 8:23 PM EDT | TSTM WND DMG | Worcester, MA | TREE AND WIRES DOWN ON NORTH WOODWARD ST |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Chatham, MA (KCHH), launched 00:00Z, 0.2 hours before the alert went out and 158 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
- 384 J/kg
- Mixed-layer CIN
- -51 J/kg
- Mixed-layer LCL
- 568 m above ground
- 0-6 km bulk shear
- 28 kt
- 0-1 km storm-relative helicity
- 133 m²/s²
- 0-3 km storm-relative helicity
- 149 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
288
WFUS51 KBOX 010014
TORBOX
MAC017-027-010100-
/O.NEW.KBOX.TO.W.0006.140901T0014Z-140901T0100Z/
BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE TAUNTON MA
814 PM EDT SUN AUG 31 2014
THE NATIONAL WEATHER SERVICE IN TAUNTON HAS ISSUED A
* TORNADO WARNING FOR...
EAST CENTRAL WORCESTER COUNTY IN CENTRAL MASSACHUSETTS...
SOUTH CENTRAL MIDDLESEX COUNTY IN NORTHEASTERN MASSACHUSETTS...
* UNTIL 900 PM EDT
* AT 813 PM EDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM
CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS STORM WAS LOCATED
OVER WORCESTER...AND WAS MOVING EAST AT 30 MPH.
* SOME LOCATIONS IMPACTED INCLUDE...
WORCESTER...FRAMINGHAM...MARLBOROUGH...SHREWSBURY...NATICK...
ACTON...HUDSON...WESTBOROUGH...GRAFTON...SUDBURY...ASHLAND...
AUBURN...HOPKINTON...NORTHBOROUGH...MAYNARD...SOUTHBOROUGH...WEST
BOYLSTON...STOW...BOLTON AND BOYLSTON.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW! DO NOT WAIT TO SEE THE TORNADO. GO TO A BASEMENT OR
INTERIOR ROOM ON THE LOWEST FLOOR OF A STURDY BUILDING...AWAY FROM
WINDOWS. IF IN A VEHICLE...A MOBILE HOME OR OUTDOORS...GET TO THE
CLOSEST SHELTER. PROTECT YOURSELF FROM FLYING DEBRIS.
&&
LAT...LON 4222 7185 4228 7188 4246 7146 4229 7137
TIME...MOT...LOC 0013Z 248DEG 26KT 4228 7176
$$
FIELD3 follow-up statements
001
WWUS51 KBOX 010024
SVSBOX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TAUNTON MA
824 PM EDT SUN AUG 31 2014
MAC017-027-010100-
/O.CON.KBOX.TO.W.0006.000000T0000Z-140901T0100Z/
WORCESTER MA-MIDDLESEX MA-
824 PM EDT SUN AUG 31 2014
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 900 PM EDT FOR EAST
CENTRAL WORCESTER AND SOUTH CENTRAL MIDDLESEX COUNTIES...
AT 822 PM EDT...DOPPLER RADAR CONTINUED TO INDICATE A SEVERE
THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS STORM
WAS LOCATED OVER SHREWSBURY...MOVING EAST AT 30 MPH. SPOTTERS AND
AMATEUR RADIO OPERATORS REPORTED NUMEROUS LARGE TREE LIMBS AND SOME
TREES HAVE DOWN IN WORCESTER.
LOCATIONS IMPACTED INCLUDE...
WORCESTER...FRAMINGHAM...MARLBOROUGH...SHREWSBURY...NATICK...ACTON...
HUDSON...WESTBOROUGH...SUDBURY...ASHLAND...NORTHBOROUGH...MAYNARD...
SOUTHBOROUGH...STOW...BOYLSTON AND BERLIN.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW! LEAVE MOBILE HOMES AND GO TO A STRONG BUILDING. GO TO
THE BASEMENT OR AN INTERIOR ROOM ON THE LOWEST FLOOR. STAY AWAY FROM
WINDOWS.
&&
LAT...LON 4225 7174 4230 7177 4246 7146 4229 7137
TIME...MOT...LOC 0022Z 248DEG 26KT 4231 7167
$$
FIELD850
WWUS51 KBOX 010037
SVSBOX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TAUNTON MA
837 PM EDT SUN AUG 31 2014
MAC017-027-010100-
/O.CON.KBOX.TO.W.0006.000000T0000Z-140901T0100Z/
WORCESTER MA-MIDDLESEX MA-
837 PM EDT SUN AUG 31 2014
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 900 PM EDT FOR EAST
CENTRAL WORCESTER AND SOUTH CENTRAL MIDDLESEX COUNTIES...
AT 835 PM EDT...DOPPLER RADAR SHOWS THAT THE STORM THAT PROMPTED THE
TORNADO WARNING HAS WEAKENED OVER MARLBOROUGH. HOWEVER THIS STORM
HAS DOWNED NUMEROUS TREES IN THE WORCESTER AREA AND CONTINUES TO
HAVE THE POTENTIAL TO PRODUCE A TORNADO. THE STORM IS MOVING EAST AT
30 MPH.
LOCATIONS IMPACTED INCLUDE...
FRAMINGHAM...MARLBOROUGH...NATICK...HUDSON...WESTBOROUGH...SUDBURY...
ASHLAND...NORTHBOROUGH...MAYNARD...SOUTHBOROUGH AND STOW.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW! LEAVE MOBILE HOMES AND GO TO A STRONG BUILDING. GO TO
THE BASEMENT OR AN INTERIOR ROOM ON THE LOWEST FLOOR. STAY AWAY FROM
WINDOWS.
&&
LAT...LON 4226 7166 4232 7169 4243 7145 4229 7137
TIME...MOT...LOC 0035Z 248DEG 26KT 4234 7156
$$
FIELD576
WWUS51 KBOX 010048
SVSBOX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TAUNTON MA
848 PM EDT SUN AUG 31 2014
MAC017-027-010058-
/O.CAN.KBOX.TO.W.0006.000000T0000Z-140901T0100Z/
WORCESTER MA-MIDDLESEX MA-
848 PM EDT SUN AUG 31 2014
...THE TORNADO WARNING FOR EAST CENTRAL WORCESTER AND SOUTH CENTRAL
MIDDLESEX COUNTIES IS CANCELED...
THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE
LIMITS...AND NO LONGER APPEARS TO BE CAPABLE OF PRODUCING A TORNADO.
THEREFORE THE WARNING HAS BEEN CANCELED. HOWEVER GUSTY WINDS TO
50 MPH ARE STILL POSSIBLE WITH THIS THUNDERSTORM.
LAT...LON 4226 7166 4232 7169 4243 7145 4229 7137
TIME...MOT...LOC 0046Z 248DEG 26KT 4238 7144
$$
FIELDThe office that day
Everything else NWS Boston/Norton, MA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 31, 8:04 PM EDT | Special Weather Statement | BOX | Middlesex | 41 min |
| Aug 31, 8:11 PM EDT | Flash Flood Warning | BOX | Worcester | 3 hr |
| Aug 31, 9:09 PM EDT | Areal Flood Advisory | BOX | Essex, Middlesex, Norfolk, Suffolk | 2 hr |
| Aug 31, 10:01 PM EDT | Areal Flood Advisory | BOX | Bristol, Dukes | 119 min |
Nearby
Tornado Warnings in Massachusetts, 2014Every tornado warning in 2014Tornadoes in 2014
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.