Alert archive / Massachusetts / Tornado Warnings in 2015

Tornado Warning 3, NWS Boston/Norton, MA

June 23, 2015Bristol County, Norfolk County, Plymouth County, Massachusetts

NWS Boston/Norton, MA issued this tornado warning at Jun 23, 2015, 5:46 PM EDT for Bristol County, Norfolk County, Plymouth County, Massachusetts. It was in force for 30 min. 2 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: Jun 23, 2015, 5:46 PM EDT (21:46 UTC)
Expired: Jun 23, 2015, 6:16 PM EDT
In force: 30 min
Issued by: NWS Boston/Norton, MA
Area: Storm-based polygon

Counties Bristol County, MA, Norfolk County, MA, Plymouth County, MA

The radar

The Boston radar (KBOX), 4 km from the middle of the area, began a volume at 21:48 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
Jun 23, 5:50 PM EDT	TSTM WND DMG	Mansfield, MA	LARGE LIMB DOWN ON MADISON AT EAST STREET
Jun 23, 6:00 PM EDT	TSTM WND DMG	Easton, MA	TREE DOWN BLOCKING DAY STREET... WIRES DOWN ON COLUMBUS AVE

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
Jun 23, 3:47 PM EDT	Tornado Watch	SPC	7 hr

The nearest sounding before it

Chatham, MA (KCHH), launched 12:00Z, 9.8 hours before the alert went out and 105 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 3 J/kg
Mixed-layer CIN: -165 J/kg
Mixed-layer LCL: 1240 m above ground
0-6 km bulk shear: 30 kt
0-1 km storm-relative helicity: 63 m²/s²
0-3 km storm-relative helicity: 135 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

995 
WFUS51 KBOX 232146
TORBOX
MAC005-021-023-232230-
/O.NEW.KBOX.TO.W.0003.150623T2146Z-150623T2230Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE TAUNTON MA
546 PM EDT TUE JUN 23 2015

THE NATIONAL WEATHER SERVICE IN TAUNTON HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHWESTERN BRISTOL COUNTY IN SOUTHEASTERN MASSACHUSETTS...
  WEST CENTRAL PLYMOUTH COUNTY IN SOUTHEASTERN MASSACHUSETTS...
  SOUTH CENTRAL NORFOLK COUNTY IN EASTERN MASSACHUSETTS...

* UNTIL 630 PM EDT
    
* AT 546 PM EDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM
  CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS STORM WAS LOCATED
  OVER MANSFIELD...OR NEAR NORTH ATTLEBOROUGH...AND WAS MOVING EAST
  AT 35 MPH.

* SOME LOCATIONS IMPACTED INCLUDE...
  BROCKTON...TAUNTON...NORTH ATTLEBOROUGH...BRIDGEWATER...
  ATTLEBORO...MANSFIELD...MIDDLEBOROUGH...EASTON...NORTON...SHARON...
  FOXBOROUGH...EAST BRIDGEWATER...RAYNHAM...NORFOLK...WRENTHAM...
  LAKEVILLE...PLAINVILLE AND WEST BRIDGEWATER.

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 4197 7134 4210 7131 4205 7090 4186 7093
TIME...MOT...LOC 2146Z 280DEG 29KT 4201 7125 
$$

JWD/MANNING

2 follow-up statements

501 
WWUS51 KBOX 232201
SVSBOX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TAUNTON MA
601 PM EDT TUE JUN 23 2015

MAC021-232209-
/O.CAN.KBOX.TO.W.0003.000000T0000Z-150623T2230Z/
NORFOLK MA-
601 PM EDT TUE JUN 23 2015

...THE TORNADO WARNING FOR SOUTH CENTRAL NORFOLK COUNTY IS
CANCELED...
    
THE TORNADIC THUNDERSTORM WHICH PROMPTED THE WARNING HAS MOVED OUT 
OF THE WARNED AREA. THEREFORE THE WARNING HAS BEEN CANCELED.

&&

LAT...LON 4194 7115 4207 7114 4208 7113 4208 7112
      4205 7090 4186 7093
TIME...MOT...LOC 2159Z 280DEG 29KT 4199 7110 

$$

MAC005-023-232230-
/O.CON.KBOX.TO.W.0003.000000T0000Z-150623T2230Z/
BRISTOL MA-PLYMOUTH MA-
601 PM EDT TUE JUN 23 2015

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 630 PM EDT FOR NORTH
CENTRAL BRISTOL AND WEST CENTRAL PLYMOUTH COUNTIES...
    
AT 559 PM EDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE
OF PRODUCING A TORNADO. THIS DANGEROUS STORM WAS LOCATED NEAR
EASTON...OR NEAR TAUNTON...MOVING EAST AT 35 MPH.

AS OF 6 PM...THERE HAS BEEN NO CONFIRMATION OF A TORNADO ON THE 
GROUND. HOWEVER A TORNADO MAY TOUCH DOWN AT ANY TIME!

A WALL CLOUD WAS VISIBLE FROM THE NATIONAL WEATHER SERVICE OFFICE IN 
TAUNTON AS THE STORM PASSED.

LOCATIONS IMPACTED INCLUDE...
BROCKTON...TAUNTON...BRIDGEWATER...MIDDLEBOROUGH...EASTON...NORTON...
EAST BRIDGEWATER...RAYNHAM...LAKEVILLE AND WEST BRIDGEWATER.

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 4194 7115 4207 7114 4208 7113 4208 7112
      4205 7090 4186 7093
TIME...MOT...LOC 2159Z 280DEG 29KT 4199 7110 

$$

JWD/MANNING

389 
WWUS51 KBOX 232216
SVSBOX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TAUNTON MA
616 PM EDT TUE JUN 23 2015

MAC005-023-232225-
/O.CAN.KBOX.TO.W.0003.000000T0000Z-150623T2230Z/
BRISTOL MA-PLYMOUTH MA-
616 PM EDT TUE JUN 23 2015

...THE TORNADO WARNING FOR NORTH CENTRAL BRISTOL AND WEST CENTRAL
PLYMOUTH COUNTIES IS CANCELED...
        
THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF BRISTOL AND 
FAR WESTERN PLYMOUTH COUNTIES. THEREFORE THE WARNING HAS BEEN 
CANCELED.

REMEMBER...A TORNADO WARNING STILL REMAINS IN EFFECT FOR CENTRAL AND 
EASTERN PLYMOUTH COUNTY UNTIL 7 PM. A TORNADO MAY TOUCH DOWN AT ANY 
TIME. TAKE COVER NOW!

&&

LAT...LON 4194 7115 4207 7114 4208 7113 4208 7112
      4205 7090 4186 7093
TIME...MOT...LOC 2214Z 280DEG 29KT 4197 7093 

$$

JWD/MANNING

The office that day

Everything else NWS Boston/Norton, MA issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 23, 10:07 AM EDT	Special Weather Statement	BOX	Hampden, Hampshire	53 min
Jun 23, 10:47 AM EDT	Special Weather Statement	BOX	Hampden, Worcester	58 min
Jun 23, 11:17 AM EDT	Special Marine Warning	BOX		58 min
Jun 23, 11:19 AM EDT	Special Weather Statement	BOX	Middlesex, Worcester	41 min
Jun 23, 12:15 PM EDT	Special Weather Statement	BOX	Essex	30 min
Jun 23, 12:17 PM EDT	Severe Thunderstorm Warning	BOX	Essex	14 min
Jun 23, 12:20 PM EDT	Tornado Warning	BOX	Essex	11 min
Jun 23, 12:21 PM EDT	Special Marine Warning	BOX		54 min
Jun 23, 1:37 PM EDT	Special Marine Warning	BOX		38 min
Jun 23, 4:28 PM EDT	Severe Thunderstorm Warning	BOX	Worcester	47 min
Jun 23, 4:33 PM EDT	Special Weather Statement	BOX	Franklin, Hampshire	42 min
Jun 23, 5:00 PM EDT	Special Weather Statement	BOX	Hampden	45 min
Jun 23, 5:08 PM EDT	Severe Thunderstorm Warning	BOX	Bristol, Norfolk, Worcester	52 min
Jun 23, 5:16 PM EDT	Tornado Warning	BOX	Bristol, Norfolk, Worcester	44 min
Jun 23, 5:21 PM EDT	Special Marine Warning	BOX		54 min
Jun 23, 5:42 PM EDT	Severe Thunderstorm Warning	BOX	Bristol	48 min
Jun 23, 5:48 PM EDT	Special Marine Warning	BOX		57 min
Jun 23, 5:52 PM EDT	Areal Flood Warning	BOX	Bristol, Norfolk, Plymouth	113 min
Jun 23, 5:53 PM EDT	Special Weather Statement	BOX	Franklin	52 min
Jun 23, 5:57 PM EDT	Severe Thunderstorm Warning	BOX	Franklin, Worcester	48 min
Jun 23, 6:03 PM EDT	Special Marine Warning	BOX		42 min
Jun 23, 6:10 PM EDT	Tornado Warning	BOX	Plymouth	30 min
Jun 23, 6:28 PM EDT	Special Weather Statement	BOX	Franklin	47 min
Jun 23, 6:41 PM EDT	Special Marine Warning	BOX		49 min
Jun 23, 6:50 PM EDT	Special Weather Statement	BOX	Worcester	40 min
Jun 23, 7:01 PM EDT	Severe Thunderstorm Warning	BOX	Franklin, Middlesex, Worcester	47 min
Jun 23, 7:19 PM EDT	Severe Thunderstorm Warning	BOX	Hampden, Hampshire	41 min
Jun 23, 7:40 PM EDT	Special Weather Statement	BOX	Middlesex	50 min
Jun 23, 7:45 PM EDT	Severe Thunderstorm Warning	BOX	Hampden, Worcester	45 min
Jun 23, 7:59 PM EDT	Special Marine Warning	BOX		61 min

Nearby

Tornado Warnings in Massachusetts, 2015 Every tornado warning in 2015 Tornadoes in 2015

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.