Alert archive / Massachusetts / Severe Thunderstorm Warnings in 2016

Severe Thunderstorm Warning 30, NWS Boston/Norton, MA

July 15, 2016Plymouth County, Massachusetts

NWS Boston/Norton, MA issued this severe thunderstorm warning at Jul 15, 2016, 3:34 PM EDT for Plymouth County, Massachusetts. It was in force for 23 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 15, 2016, 3:34 PM EDT (19:34 UTC)
Expired: Jul 15, 2016, 3:57 PM EDT
In force: 23 min
Issued by: NWS Boston/Norton, MA
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

County Plymouth County, MA

The radar

The Boston radar (KBOX), 38 km from the middle of the area, began a volume at 19:33 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

Chatham, MA (KCHH), launched 12:00Z, 7.6 hours before the alert went out and 72 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: 214 J/kg
Mixed-layer CIN: -124 J/kg
Mixed-layer LCL: 1318 m above ground
0-6 km bulk shear: 21 kt
0-1 km storm-relative helicity: 42 m²/s²
0-3 km storm-relative helicity: 110 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.2

Open this sounding in Storm Lab

The text

As transmitted.

503 
WUUS51 KBOX 151934
SVRBOX
MAC023-152015-
/O.NEW.KBOX.SV.W.0030.160715T1934Z-160715T2015Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TAUNTON MA
334 PM EDT FRI JUL 15 2016

THE NATIONAL WEATHER SERVICE IN TAUNTON HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  CENTRAL PLYMOUTH COUNTY IN SOUTHEASTERN MASSACHUSETTS...

* UNTIL 415 PM EDT

* AT 334 PM EDT...A SEVERE THUNDERSTORM WAS LOCATED OVER HANSON...OR
  NEAR BRIDGEWATER...MOVING EAST AT 15 MPH.

  HAZARD...60 MPH WIND GUSTS AND PENNY SIZE HAIL. 

  SOURCE...RADAR INDICATED. 

  IMPACT...EXPECT DAMAGE TO ROOFS...SIDING...AND TREES. 

* LOCATIONS IMPACTED INCLUDE...
  PLYMOUTH...BRIDGEWATER...MARSHFIELD...MIDDLEBOROUGH...SCITUATE...
  PEMBROKE...ROCKLAND...DUXBURY...WHITMAN...HANOVER...
  EAST BRIDGEWATER...KINGSTON...NORWELL...HANSON...
  HALIFAX AND PLYMPTON.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.

&&

LAT...LON 4199 7063 4201 7070 4201 7071 4198 7068
      4198 7065 4191 7095 4207 7097 4219 7072
      4217 7073 4209 7064 4205 7066 4202 7062
      4204 7065 4204 7066 4202 7068 4200 7064
      4202 7061 4201 7060
TIME...MOT...LOC 1934Z 247DEG 14KT 4203 7087 

HAIL...0.75IN
WIND...60MPH
 
$$

FRANK

3 follow-up statements

172 
WWUS51 KBOX 151946
SVSBOX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TAUNTON MA
346 PM EDT FRI JUL 15 2016

MAC023-152015-
/O.CON.KBOX.SV.W.0030.000000T0000Z-160715T2015Z/
PLYMOUTH MA-
346 PM EDT FRI JUL 15 2016

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 415 PM EDT
FOR CENTRAL PLYMOUTH COUNTY...

AT 345 PM EDT...A SEVERE THUNDERSTORM WAS LOCATED OVER MARSHFIELD...
MOVING NORTHEAST AT 30 MPH.

HAZARD...60 MPH WIND GUSTS. 

SOURCE...RADAR INDICATED. 

IMPACT...EXPECT DAMAGE TO ROOFS...SIDING...AND TREES. 

LOCATIONS IMPACTED INCLUDE...
MARSHFIELD...SCITUATE...PEMBROKE...DUXBURY...HANOVER...KINGSTON...
NORWELL...HANSON...HALIFAX AND PLYMPTON.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.

&&

LAT...LON 4201 7070 4199 7068 4198 7065 4196 7081
      4212 7087 4219 7072 4217 7073 4209 7064
      4205 7066 4203 7063 4203 7065 4204 7066
      4202 7068 4201 7065 4202 7061 4201 7060
      4200 7065
TIME...MOT...LOC 1945Z 237DEG 27KT 4209 7076 

HAIL...<.75IN
WIND...60MPH
 
$$

FRANK

168 
WWUS51 KBOX 151954
SVSBOX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TAUNTON MA
354 PM EDT FRI JUL 15 2016

MAC023-152015-
/O.CON.KBOX.SV.W.0030.000000T0000Z-160715T2015Z/
PLYMOUTH MA-
354 PM EDT FRI JUL 15 2016

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 415 PM EDT
FOR NORTHEASTERN PLYMOUTH COUNTY...

AT 353 PM EDT...A SEVERE THUNDERSTORM WAS LOCATED OVER MARSHFIELD...
MOVING NORTHEAST AT 20 MPH.

HAZARD...60 MPH WIND GUSTS. 

SOURCE...RADAR INDICATED. 

IMPACT...EXPECT DAMAGE TO ROOFS...SIDING...AND TREES. 

LOCATIONS IMPACTED INCLUDE...
MARSHFIELD...SCITUATE...PEMBROKE AND DUXBURY. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.

&&

LAT...LON 4206 7066 4205 7066 4205 7068 4203 7067
      4207 7070 4211 7078 4219 7073 4218 7072
      4218 7073 4217 7073 4209 7064
TIME...MOT...LOC 1953Z 233DEG 18KT 4213 7071 

HAIL...<.75IN
WIND...60MPH
 
$$

FRANK

773 
WWUS51 KBOX 151957
SVSBOX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TAUNTON MA
357 PM EDT FRI JUL 15 2016

MAC023-152006-
/O.CAN.KBOX.SV.W.0030.000000T0000Z-160715T2015Z/
PLYMOUTH MA-
357 PM EDT FRI JUL 15 2016

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN PLYMOUTH COUNTY
IS CANCELLED...
        
THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE
LIMITS...AND HAS EXITED THE WARNED AREA. THEREFORE...THE WARNING HAS
BEEN CANCELLED.

LAT...LON 4206 7066 4205 7066 4205 7068 4203 7067
      4207 7070 4211 7078 4219 7073 4218 7072
      4218 7073 4217 7073 4209 7064
TIME...MOT...LOC 1954Z 247DEG 14KT 4214 7069 

$$

FRANK

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 15, 4:11 AM EDT	Dense Fog Advisory	BOX	Barnstable, Bristol, Norfolk, Plymouth	5 hr
Jul 15, 2:02 PM EDT	Special Weather Statement	BOX	Plymouth	43 min
Jul 15, 2:11 PM EDT	Severe Thunderstorm Warning	BOX	Bristol	49 min
Jul 15, 2:12 PM EDT	Special Marine Warning	BOX		48 min
Jul 15, 2:18 PM EDT	Special Weather Statement	BOX	Plymouth	42 min
Jul 15, 2:34 PM EDT	Areal Flood Advisory	BOX	Bristol	56 min
Jul 15, 2:34 PM EDT	Special Weather Statement	BOX	Plymouth	41 min
Jul 15, 2:36 PM EDT	Special Marine Warning	BOX		54 min
Jul 15, 2:54 PM EDT	Special Marine Warning	BOX		51 min
Jul 15, 2:58 PM EDT	Severe Thunderstorm Warning	BOX	Bristol	28 min
Jul 15, 3:06 PM EDT	Special Marine Warning	BOX		54 min
Jul 15, 3:08 PM EDT	Special Weather Statement	BOX	Plymouth	52 min
Jul 15, 3:13 PM EDT	Special Weather Statement	BOX	Barnstable	47 min
Jul 15, 3:28 PM EDT	Severe Thunderstorm Warning	BOX	Barnstable	47 min
Jul 15, 3:50 PM EDT	Special Marine Warning	BOX		55 min
Jul 15, 4:17 PM EDT	Special Marine Warning	BOX		43 min
Jul 15, 4:54 PM EDT	Special Weather Statement	BOX	Franklin	51 min
Jul 15, 7:31 PM EDT	Special Weather Statement	BOX	Franklin	44 min
Jul 15, 7:55 PM EDT	Severe Thunderstorm Warning	BOX	Franklin, Hampden, Hampshire	22 min

Nearby

Severe Thunderstorm Warnings in Massachusetts, 2016 Every severe thunderstorm warning in 2016

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.