Alert archive / Massachusetts / Tornado Warnings in 2015

Tornado Warning 6, NWS Boston/Norton, MA

July 1, 2015Essex County, Massachusetts

NWS Boston/Norton, MA issued this tornado warning at Jul 1, 2015, 3:57 PM EDT for Essex County, Massachusetts. It was in force for 18 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 1, 2015, 3:57 PM EDT (19:57 UTC)
Expired
Jul 1, 2015, 4:15 PM EDT
In force
18 min
Issued by
NWS Boston/Norton, MA
Area
Storm-based polygon

County Essex County, MA

The radar

The Boston radar (KBOX), 91 km from the middle of the area, began a volume at 19:59 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

Gray, ME (KGYX), launched 12:00Z, 8.0 hours before the alert went out and 135 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 2015-07-01Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Gray, ME at 12:00Z on 2015-07-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 119 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
699 m above ground
0-6 km bulk shear
41 kt
0-1 km storm-relative helicity
119 m²/s²
0-3 km storm-relative helicity
136 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.

713 
WFUS51 KBOX 011957
TORBOX
MAC009-012030-
/O.NEW.KBOX.TO.W.0006.150701T1957Z-150701T2030Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE TAUNTON MA
357 PM EDT WED JUL 1 2015

THE NATIONAL WEATHER SERVICE IN TAUNTON HAS ISSUED A

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

* UNTIL 430 PM EDT
    
* AT 357 PM EDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM
  CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS STORM WAS LOCATED
  OVER NEWBURY...OR 9 MILES EAST OF HAVERHILL...AND WAS MOVING EAST
  AT 20 MPH.

* SOME LOCATIONS IMPACTED INCLUDE...
  GLOUCESTER...NEWBURYPORT...IPSWICH...GEORGETOWN...ROCKPORT...
  NEWBURY...GROVELAND AND ROWLEY.

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 4270 7077 4269 7065 4269 7063 4266 7062
      4272 7096 4276 7098 4281 7083 4280 7083
      4282 7082
TIME...MOT...LOC 1957Z 265DEG 19KT 4275 7090 
$$

NOCERA
1 follow-up statement
616 
WWUS51 KBOX 012015
SVSBOX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TAUNTON MA
415 PM EDT WED JUL 1 2015

MAC009-012024-
/O.CAN.KBOX.TO.W.0006.000000T0000Z-150701T2030Z/
ESSEX MA-
415 PM EDT WED JUL 1 2015

...THE TORNADO WARNING FOR NORTHEASTERN ESSEX COUNTY IS CANCELED...
    
THE TORNADIC THUNDERSTORM WHICH PROMPTED THE WARNING FOR COASTAL 
ESSEX COUNTY OF MASSACHUSETTS HAS MOVED OFFSHORE. THEREFORE THE 
WARNING HAS BEEN CANCELED.

LAT...LON 4270 7077 4269 7065 4269 7063 4266 7062
      4272 7096 4276 7098 4281 7083 4280 7083
      4282 7082
TIME...MOT...LOC 2012Z 265DEG 19KT 4276 7077 

$$

NOCERA

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 1, 5:16 AM EDTSpecial Marine WarningBOX59 min
Jul 1, 6:06 AM EDTSpecial Weather StatementBOXFranklin, Hampden, Hampshire54 min
Jul 1, 6:25 AM EDTAreal Flood AdvisoryBOXFranklin, Hampden, Hampshire2 hr
Jul 1, 6:41 AM EDTSpecial Marine WarningBOX64 min
Jul 1, 6:57 AM EDTSpecial Weather StatementBOXWorcester63 min
Jul 1, 7:28 AM EDTSevere Thunderstorm WarningBOXBristol, Norfolk, Plymouth, Worcester62 min
Jul 1, 7:43 AM EDTSpecial Marine WarningBOX62 min
Jul 1, 7:56 AM EDTAreal Flood AdvisoryBOXBristol, Plymouth2 hr
Jul 1, 8:19 AM EDTSpecial Weather StatementBOXDukes56 min
Jul 1, 8:49 AM EDTSevere Thunderstorm WarningBOXBarnstable26 min
Jul 1, 8:53 AM EDTTornado WarningBOXBarnstable37 min
Jul 1, 8:55 AM EDTSpecial Marine WarningBOX50 min
Jul 1, 9:16 AM EDTSpecial Weather StatementBOXBarnstable59 min
Jul 1, 9:34 AM EDTSevere Thunderstorm WarningBOXDukes26 min
Jul 1, 9:44 AM EDTSpecial Marine WarningBOX61 min
Jul 1, 11:45 AM EDTSpecial Marine WarningBOX60 min
Jul 1, 3:31 PM EDTSpecial Weather StatementBOXEssex59 min
Jul 1, 3:36 PM EDTAreal Flood WarningBOXEssex114 min
Jul 1, 3:49 PM EDTSpecial Marine WarningBOX41 min
Jul 1, 3:50 PM EDTSevere Thunderstorm WarningBOXEssex25 min
Jul 1, 4:29 PM EDTSpecial Marine WarningBOX46 min
Jul 1, 4:47 PM EDTSevere Thunderstorm WarningBOXEssex14 min
Jul 1, 5:01 PM EDTSpecial Weather StatementBOXFranklin44 min
Jul 1, 5:48 PM EDTSpecial Weather StatementBOXFranklin, Hampden, Hampshire57 min
Jul 1, 6:41 PM EDTSpecial Weather StatementBOXWorcester49 min
Jul 1, 7:04 PM EDTSpecial Weather StatementBOXEssex41 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.