Alert archive / Massachusetts / Severe Thunderstorm Warnings in 2003

Severe Thunderstorm Warning 28, NWS Boston/Norton, MA

August 22, 2003Providence County, Rhode Island; Bristol County, Norfolk County, Plymouth County, Massachusetts

NWS Boston/Norton, MA issued this severe thunderstorm warning at Aug 22, 2003, 6:56 PM EDT for Providence County, Rhode Island; Bristol County, Norfolk County, Plymouth County, Massachusetts. It was in force for 49 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
Aug 22, 2003, 6:56 PM EDT (22:56 UTC)
Expired
Aug 22, 2003, 7:45 PM EDT
In force
49 min
Issued by
NWS Boston/Norton, MA
Area
Counties, with a storm outline in the text

Counties Bristol County, MA, Norfolk County, MA, Plymouth County, MA, Providence County, RI

The radar

The Boston radar (KBOX), 17 km from the middle of the area, began a volume at 23:00 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.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Aug 22, 1:15 PM EDTSevere Thunderstorm WatchSPC7 hr

The nearest sounding before it

Chatham, MA (KCHH), launched 12:00Z, 10.9 hours before the alert went out and 99 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, Chatham, MA at 12:00Z on 2003-08-22Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 629 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, Chatham, MA at 12:00Z on 2003-08-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 37 square meters per square second.1939Sfc1 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
629 J/kg
Mixed-layer CIN
-158 J/kg
Mixed-layer LCL
909 m above ground
0-6 km bulk shear
11 kt
0-1 km storm-relative helicity
37 m²/s²
0-3 km storm-relative helicity
5 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.

000 
WUUS51 KBOX 222256
SVRBOX
MAC005-021-023-RIC007-222345-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TAUNTON MA
656 PM EDT FRI AUG 22 2003

THE NATIONAL WEATHER SERVICE IN TAUNTON HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  EXTREME NORTHEASTERN PROVIDENCE COUNTY IN RHODE ISLAND
    INCLUDING WOONSOCKET
  EXTREME SOUTHERN NORFOLK COUNTY IN EASTERN MASSACHUSETTS
    INCLUDING WEYMOUTH
  NORTHERN BRISTOL COUNTY IN SOUTHEAST MASSACHUSETTS
    INCLUDING NORTH ATTLEBOROUGH AND MANSFIELD
  NORTHERN PLYMOUTH COUNTY IN SOUTHEAST MASSACHUSETTS     
    INCLUDING BROCKTON AND MARSHFIELD

* UNTIL 745 PM.

* AT 650 PM...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A LINE
  OF SEVERE THUNDERSTORMS FROM 10 MILES WEST OF WOONSOCKET TO
  COHASSET...OR FROM 10 MILES WEST OF WOONSOCKET TO 9 MILES EAST OF
  WEYMOUTH...MOVING SOUTHEAST AT 35 MPH.

* SEVERE THUNDERSTORMS WILL BE NEAR...
  WOONSOCKET AND WHITMAN AROUND 705 PM
  MANSFIELD AND HANOVER AROUND 710 PM
  PLAINVILLE...PEMBROKE AND HANSON AROUND 715 PM
  NORTH ATTLEBOROUGH...MARSHFIELD AND EAST BRIDGEWATER AROUND 720 PM
  WEST BRIDGEWATER AROUND 725 PM
  NORTON AROUND 730 PM.

SEVERE THUNDERSTORMS PRODUCE LARGE HAIL AND/OR WIND STRONG ENOUGH TO
KNOCK DOWN TREES AND POWER LINES. MOVE INDOORS AND STAY AWAY FROM
WINDOWS.

$$

LAT...LON 4207 7063 4200 7088 4195 7113 4200 7157
          4200 7150 4205 7149 4212 7118 4224 7084
          4224 7076 4220 7072

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 22, 7:51 PM EDTSevere Thunderstorm WarningBOXKent24 min
Aug 22, 4:08 PM EDTSevere Thunderstorm WarningBOXFranklin, Hampshire, Worcester52 min
Aug 22, 4:59 PM EDTSevere Thunderstorm WarningBOXMiddlesex46 min
Aug 22, 5:16 PM EDTSevere Thunderstorm WarningBOXMiddlesex, Worcester44 min
Aug 22, 5:50 PM EDTSpecial Marine WarningBOX115 min
Aug 22, 5:50 PM EDTSpecial Marine WarningBOX115 min
Aug 22, 5:51 PM EDTSpecial Marine WarningBOX22 hr
Aug 22, 5:51 PM EDTSpecial Marine WarningBOX22 hr
Aug 22, 5:55 PM EDTSevere Thunderstorm WarningBOXMiddlesex, Norfolk, Suffolk, Worcester65 min
Aug 22, 6:30 PM EDTFlash Flood WarningBOXMiddlesex, Norfolk, Suffolk2 hr

Nearby

Severe Thunderstorm Warnings in Massachusetts, 2003Severe Thunderstorm Warnings in Rhode Island, 2003Every severe thunderstorm warning in 2003

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.