Alert archive / Massachusetts / Tornado Warnings in 2013

Tornado Warning 8, NWS Boston/Norton, MA

July 1, 2013Essex County, Middlesex County, Suffolk County, Massachusetts

NWS Boston/Norton, MA issued this tornado warning at Jul 1, 2013, 3:57 PM EDT for Essex County, Middlesex County, Suffolk County, Massachusetts. It was in force for 33 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: Jul 1, 2013, 3:57 PM EDT (19:57 UTC)
Expired: Jul 1, 2013, 4:30 PM EDT
In force: 33 min
Issued by: NWS Boston/Norton, MA
Area: Storm-based polygon

Counties Essex County, MA, Middlesex County, MA, Suffolk County, MA

The radar

The Boston radar (KBOX), 74 km from the middle of the area, began a volume at 20:00 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 1, 4:00 PM EDT	TSTM WND DMG	Lynn, MA	TIME APPROXIMATE. ON WARWICK STREET A TREE AND WIRES WERE DOWNED ONTO A FENCE. AN 8 DIAMETER TREE BRANCH WAS DOWNED AND BLEW INTO A HOUSE. ONLY MINIMAL DAMAGE TO THE HOUSE. SEVERAL OTHER TREE LIMBS WERE DOWNED ON LYNNFIELD STREET AND SAVORY STREET.

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 12:00Z, 8.0 hours before the alert went out and 122 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: 293 J/kg
Mixed-layer CIN: -13 J/kg
Mixed-layer LCL: 441 m above ground
0-6 km bulk shear: 39 kt
0-1 km storm-relative helicity: 100 m²/s²
0-3 km storm-relative helicity: 115 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.

684 
WFUS51 KBOX 011957
TORBOX
MAC009-017-025-012030-
/O.NEW.KBOX.TO.W.0008.130701T1957Z-130701T2030Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE TAUNTON MA
357 PM EDT MON JUL 1 2013

THE NATIONAL WEATHER SERVICE IN TAUNTON HAS ISSUED A

* TORNADO WARNING FOR...
  EXTREME EASTERN MIDDLESEX COUNTY IN NORTHEASTERN MASSACHUSETTS... 
  EXTREME NORTHERN SUFFOLK COUNTY IN EASTERN MASSACHUSETTS... 
  SOUTHERN ESSEX COUNTY IN NORTHEASTERN MASSACHUSETTS...

* UNTIL 430 PM EDT
    
* AT 355 PM EDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM
  CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS STORM WAS LOCATED
  NEAR SALEM...OR 3 MILES WEST OF BEVERLY...AND MOVING NORTHEAST AT
  30 MPH.

* LOCATIONS IMPACTED INCLUDE...
  LYNN...BEVERLY...GLOUCESTER...PEABODY...HAMILTON...WENHAM...
  DANVERS...ROCKPORT...IPSWICH...ESSEX AND MANCHESTER.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

MOTORISTS SHOULD NOT TAKE SHELTER UNDER HIGHWAY OVERPASSES. IF YOU
CANNOT SAFELY DRIVE AWAY FROM THE TORNADO...AS A LAST RESORT...EITHER
PARK YOUR VEHICLE AND STAY PUT...OR ABANDON YOUR VEHICLE AND LIE DOWN
IN A LOW LYING AREA AND PROTECT YOURSELF FROM FLYING DEBRIS.

&&

LAT...LON 4267 7073 4265 7076 4269 7064 4266 7059
      4258 7066 4261 7066 4253 7078 4256 7079
      4254 7090 4253 7090 4254 7087 4252 7089
      4251 7082 4246 7094 4242 7090 4242 7091
      4257 7106 4272 7078
TIME...MOT...LOC 1957Z 241DEG 27KT 4254 7091 

$$

RLG

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 1, 4:01 AM EDT	Flash Flood Watch	BOX	Franklin, Hampden, Hampshire, Middlesex, Worcester	64 hr
Jul 1, 4:50 AM EDT	Rip Current Statement	BOX	Bristol, Dukes	15 hr
Jul 1, 12:02 PM EDT	Flash Flood Warning	BOX	Franklin, Hampden, Hampshire, Worcester	3 hr
Jul 1, 12:15 PM EDT	Special Weather Statement	BOX	Hampden	60 min
Jul 1, 12:49 PM EDT	Special Weather Statement	BOX	Worcester	41 min
Jul 1, 1:32 PM EDT	Flash Flood Warning	BOX	Middlesex, Worcester	4 hr
Jul 1, 1:59 PM EDT	Severe Thunderstorm Warning	BOX	Hampden	46 min
Jul 1, 2:23 PM EDT	Areal Flood Advisory	BOX	Essex, Middlesex, Worcester	3 hr
Jul 1, 2:25 PM EDT	Tornado Warning	BOX	Essex, Middlesex, Worcester	50 min
Jul 1, 2:39 PM EDT	Flash Flood Warning	BOX	Middlesex, Worcester	3 hr
Jul 1, 2:46 PM EDT	Flash Flood Warning	BOX	Middlesex, Worcester	3 hr
Jul 1, 2:56 PM EDT	Tornado Warning	BOX	Essex	49 min
Jul 1, 3:17 PM EDT	Special Marine Warning	BOX		43 min
Jul 1, 3:27 PM EDT	Flash Flood Warning	BOX	Essex	2 hr
Jul 1, 3:35 PM EDT	Tornado Warning	BOX	Essex, Middlesex	40 min
Jul 1, 4:00 PM EDT	Special Marine Warning	BOX		60 min
Jul 1, 4:03 PM EDT	Small Craft Advisory for Hazardous Seas	BOX		48 hr
Jul 1, 4:59 PM EDT	Special Marine Warning	BOX		61 min
Jul 1, 5:22 PM EDT	Areal Flood Advisory	BOX	Essex	113 min

Nearby

Tornado Warnings in Massachusetts, 2013 Every tornado warning in 2013 Tornadoes in 2013

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.