Alert archive / Massachusetts / Severe Thunderstorm Warnings in 2016

Severe Thunderstorm Warning 77, NWS Boston/Norton, MA

July 23, 2016Bristol County, Plymouth County, Massachusetts; Newport County, Rhode Island

NWS Boston/Norton, MA issued this severe thunderstorm warning at Jul 23, 2016, 8:33 PM EDT for Bristol County, Plymouth County, Massachusetts; Newport County, Rhode Island. It was in force for 27 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: Jul 23, 2016, 8:33 PM EDT (00:33 UTC)
Expired: Jul 23, 2016, 9:00 PM EDT
In force: 27 min
Issued by: NWS Boston/Norton, MA
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

Counties Bristol County, MA, Plymouth County, MA, Newport County, RI

The radar

The Boston radar (KBOX), 39 km from the middle of the area, began a volume at 00:34 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 23, 8:35 PM EDT	TSTM WND DMG	Dartmouth, MA	TREE DOWN ON CAR ON COOLIDGE STREET.
Jul 23, 8:35 PM EDT	TSTM WND DMG	New Bedford, MA	LARGE BRANCH ON CAR ON HOWART AT CONDUIT STREET. TREE DOWN IN THE BUTTONWOOD PARK AREA. TREE DOWN ON UNION AND 6TH STREET. TREE DOWN ON AQUIDNECK AT BROCK AVENUE. TREE DOWN ON HAWTHORN AND PAGE STREET. TREE DOWN ON WIRES ON BROWNELL 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 00:00Z, 0.6 hours before the alert went out and 77 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: 639 J/kg
Mixed-layer CIN: -118 J/kg
Mixed-layer LCL: 1924 m above ground
0-6 km bulk shear: 34 kt
0-1 km storm-relative helicity: 53 m²/s²
0-3 km storm-relative helicity: 39 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.3

Open this sounding in Storm Lab

The text

As transmitted.

034 
WUUS51 KBOX 240033
SVRBOX
MAC005-023-RIC005-240100-
/O.NEW.KBOX.SV.W.0077.160724T0033Z-160724T0100Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TAUNTON MA
833 PM EDT SAT JUL 23 2016

THE NATIONAL WEATHER SERVICE IN TAUNTON HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHEASTERN BRISTOL COUNTY IN SOUTHEASTERN MASSACHUSETTS...
  SOUTHEASTERN PLYMOUTH COUNTY IN SOUTHEASTERN MASSACHUSETTS...
  NORTHEASTERN NEWPORT COUNTY IN RHODE ISLAND...

* UNTIL 900 PM EDT

* AT 832 PM EDT...A SEVERE THUNDERSTORM WAS LOCATED OVER NEW
  BEDFORD... MOVING EAST AT 40 MPH.

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

  SOURCE...RADAR INDICATED. 

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

* LOCATIONS IMPACTED INCLUDE...
  NEW BEDFORD...FALL RIVER...PLYMOUTH...DARTMOUTH...MARION...
  MIDDLEBOROUGH...WAREHAM...SOMERSET...PORTSMOUTH...FAIRHAVEN...
  TIVERTON...WESTPORT...CARVER...LAKEVILLE...ACUSHNET...FREETOWN...
  MATTAPOISETT...ROCHESTER AND LITTLE COMPTON.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4164 7123 4172 7116 4172 7121 4187 7065
      4170 7065 4170 7067 4171 7066 4174 7071
      4170 7072 4172 7076 4164 7077 4163 7087
      4159 7083 4165 7092 4161 7090 4160 7090
      4161 7092 4152 7096 4150 7110
TIME...MOT...LOC 0032Z 287DEG 40KT 4165 7095 

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

FRANK

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 23, 8:03 PM EDT	Special Weather Statement	BOX	Hampden	57 min
Jul 23, 8:18 PM EDT	Special Weather Statement	BOX	Bristol	57 min
Jul 23, 8:23 PM EDT	Special Marine Warning	BOX		52 min
Jul 23, 8:24 PM EDT	Special Weather Statement	BOX	Bristol	36 min
Jul 23, 8:45 PM EDT	Special Marine Warning	BOX		45 min
Jul 23, 8:53 PM EDT	Special Weather Statement	BOX	Dukes	37 min
Jul 23, 8:56 PM EDT	Special Marine Warning	BOX		64 min
Jul 23, 9:00 PM EDT	Severe Thunderstorm Warning	BOX	Barnstable, Dukes	45 min
Jul 23, 9:44 PM EDT	Special Marine Warning	BOX		91 min
Jul 23, 9:46 PM EDT	Special Weather Statement	BOX	Nantucket	59 min
Jul 23, 10:17 PM EDT	Special Marine Warning	BOX		58 min
Jul 24, 4:03 AM EDT	Heat Advisory	BOX	Bristol, Hampden, Hampshire, Middlesex, Norfolk, Worcester	38 hr

Nearby

Severe Thunderstorm Warnings in Massachusetts, 2016 Severe Thunderstorm Warnings in Rhode Island, 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.