Alert archive / Massachusetts / Tornado Warnings in 2015

Tornado Warning 1, NWS Boston/Norton, MA

June 23, 2015Essex County, Massachusetts

NWS Boston/Norton, MA issued this tornado warning at Jun 23, 2015, 12:20 PM EDT for Essex County, Massachusetts. It was in force for 11 min. 1 report 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, 12:20 PM EDT (16:20 UTC)
Expired
Jun 23, 2015, 12:31 PM EDT
In force
11 min
Issued by
NWS Boston/Norton, MA
Area
Storm-based polygon

County Essex County, MA

The radar

The Boston radar (KBOX), 98 km from the middle of the area, began a volume at 16:20 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

TimeReportWhereRemark
Jun 23, 12:25 PM EDTTSTM WND DMGNewburyport, MAWIRES DOWN ON SUNSET DRIVE

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.

IssuedProductOfficeLasted
Jun 23, 10:12 AM EDTSevere Thunderstorm WatchSPC6 hr

The nearest sounding before it

Gray, ME (KGYX), launched 12:00Z, 4.3 hours before the alert went out and 129 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-pSkew-T log-p diagram, Gray, ME at 12:00Z on 2015-06-23Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 17 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Gray, ME at 12:00Z on 2015-06-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 187 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
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
17 J/kg
Mixed-layer CIN
-121 J/kg
Mixed-layer LCL
952 m above ground
0-6 km bulk shear
38 kt
0-1 km storm-relative helicity
187 m²/s²
0-3 km storm-relative helicity
241 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.2

Open this sounding in Storm Lab

The text

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

375 
WFUS51 KBOX 231620
TORBOX
MAC009-231715-
/O.NEW.KBOX.TO.W.0001.150623T1620Z-150623T1715Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE TAUNTON MA
1220 PM EDT TUE JUN 23 2015

THE NATIONAL WEATHER SERVICE IN TAUNTON HAS ISSUED A

* TORNADO WARNING FOR...
  NORTH CENTRAL ESSEX COUNTY IN NORTHEASTERN MASSACHUSETTS...

* UNTIL 115 PM EDT
    
* AT 1220 PM EDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM
  CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS STORM WAS LOCATED
  OVER NEWBURYPORT...OR 8 MILES SOUTH OF HAMPTON...AND WAS MOVING
  EAST AT 60 MPH.

* SOME LOCATIONS IMPACTED INCLUDE...
  NEWBURYPORT...AMESBURY...SALISBURY...NEWBURY...MERRIMAC AND WEST
  NEWBURY.

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 4283 7081 4281 7087 4280 7085 4280 7082
      4276 7080 4276 7081 4277 7082 4276 7082
      4278 7098 4282 7099 4287 7090 4286 7085
      4287 7082
TIME...MOT...LOC 1620Z 258DEG 51KT 4281 7087 
$$

JWD/MANNING
2 follow-up statements
629 
WWUS51 KBOX 231627
SVSBOX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TAUNTON MA
1227 PM EDT TUE JUN 23 2015

MAC009-231715-
/O.CON.KBOX.TO.W.0001.000000T0000Z-150623T1715Z/
ESSEX MA-
1227 PM EDT TUE JUN 23 2015

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 115 PM EDT FOR NORTH
CENTRAL ESSEX COUNTY...
    
AT 1226 PM EDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM
CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS STORM WAS LOCATED OVER
SALISBURY...OR 8 MILES SOUTH OF HAMPTON...MOVING EAST AT 50 MPH.

LOCATIONS IMPACTED INCLUDE...
NEWBURYPORT...SALISBURY AND NEWBURY. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THERE HAVE BEEN NO CONFIRMED REPORTS OF A TORNADO AT THIS TIME...BUT 
RADAR INDICATED STRONG ROTATION. 

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 4283 7081 4281 7087 4280 7085 4280 7082
      4276 7080 4276 7081 4277 7082 4276 7082
      4279 7092 4282 7093 4285 7089 4286 7085
      4287 7082
TIME...MOT...LOC 1626Z 257DEG 45KT 4282 7080 

$$

JWD/MANNING
399 
WWUS51 KBOX 231631
SVSBOX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TAUNTON MA
1231 PM EDT TUE JUN 23 2015

MAC009-231640-
/O.CAN.KBOX.TO.W.0001.000000T0000Z-150623T1715Z/
ESSEX MA-
1231 PM EDT TUE JUN 23 2015

...THE TORNADO WARNING FOR NORTH CENTRAL ESSEX COUNTY IS CANCELED...
        
THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE AREA.
THEREFORE THE WARNING HAS BEEN CANCELED.

DANGEROUS WATERSPOUT MAY BE OFFSHORE...AND A SPECIAL MARINE WARNING 
IS IN EFFECT UNTIL 115 PM. 

LAT...LON 4283 7081 4281 7087 4280 7085 4280 7082
      4276 7080 4276 7081 4277 7082 4276 7082
      4279 7092 4282 7093 4285 7089 4286 7085
      4287 7082
TIME...MOT...LOC 1629Z 258DEG 51KT 4283 7072 

$$

JWD/MANNING

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 23, 10:07 AM EDTSpecial Weather StatementBOXHampden, Hampshire53 min
Jun 23, 10:47 AM EDTSpecial Weather StatementBOXHampden, Worcester58 min
Jun 23, 11:17 AM EDTSpecial Marine WarningBOX58 min
Jun 23, 11:19 AM EDTSpecial Weather StatementBOXMiddlesex, Worcester41 min
Jun 23, 12:15 PM EDTSpecial Weather StatementBOXEssex30 min
Jun 23, 12:17 PM EDTSevere Thunderstorm WarningBOXEssex14 min
Jun 23, 12:21 PM EDTSpecial Marine WarningBOX54 min
Jun 23, 1:37 PM EDTSpecial Marine WarningBOX38 min
Jun 23, 4:28 PM EDTSevere Thunderstorm WarningBOXWorcester47 min
Jun 23, 4:33 PM EDTSpecial Weather StatementBOXFranklin, Hampshire42 min
Jun 23, 5:00 PM EDTSpecial Weather StatementBOXHampden45 min
Jun 23, 5:08 PM EDTSevere Thunderstorm WarningBOXBristol, Norfolk, Worcester52 min
Jun 23, 5:16 PM EDTTornado WarningBOXBristol, Norfolk, Worcester44 min
Jun 23, 5:21 PM EDTSpecial Marine WarningBOX54 min
Jun 23, 5:42 PM EDTSevere Thunderstorm WarningBOXBristol48 min
Jun 23, 5:46 PM EDTTornado WarningBOXBristol, Norfolk, Plymouth30 min
Jun 23, 5:48 PM EDTSpecial Marine WarningBOX57 min
Jun 23, 5:52 PM EDTAreal Flood WarningBOXBristol, Norfolk, Plymouth113 min
Jun 23, 5:53 PM EDTSpecial Weather StatementBOXFranklin52 min
Jun 23, 5:57 PM EDTSevere Thunderstorm WarningBOXFranklin, Worcester48 min
Jun 23, 6:03 PM EDTSpecial Marine WarningBOX42 min
Jun 23, 6:10 PM EDTTornado WarningBOXPlymouth30 min
Jun 23, 6:28 PM EDTSpecial Weather StatementBOXFranklin47 min
Jun 23, 6:41 PM EDTSpecial Marine WarningBOX49 min
Jun 23, 6:50 PM EDTSpecial Weather StatementBOXWorcester40 min
Jun 23, 7:01 PM EDTSevere Thunderstorm WarningBOXFranklin, Middlesex, Worcester47 min
Jun 23, 7:19 PM EDTSevere Thunderstorm WarningBOXHampden, Hampshire41 min
Jun 23, 7:40 PM EDTSpecial Weather StatementBOXMiddlesex50 min
Jun 23, 7:45 PM EDTSevere Thunderstorm WarningBOXHampden, Worcester45 min
Jun 23, 7:59 PM EDTSpecial Marine WarningBOX61 min

Nearby

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