Alert archive / Massachusetts / Severe Thunderstorm Warnings in 2003

Severe Thunderstorm Warning 16, NWS Boston/Norton, MA

August 13, 2003Bristol County, Massachusetts

NWS Boston/Norton, MA issued this severe thunderstorm warning at Aug 13, 2003, 7:17 PM EDT for Bristol County, Massachusetts. It was in force for 28 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 13, 2003, 7:17 PM EDT (23:17 UTC)
Expired
Aug 13, 2003, 7:45 PM EDT
In force
28 min
Issued by
NWS Boston/Norton, MA
Area
Counties, with a storm outline in the text

County Bristol County, MA

The radar

The Boston radar (KBOX), 18 km from the middle of the area, began a volume at 23:17 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, 11.3 hours before the alert went out and 104 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 2003-08-13Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1026 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 2003-08-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 3 square meters per square second.193958Sfc1 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
1026 J/kg
Mixed-layer CIN
-7 J/kg
Mixed-layer LCL
560 m above ground
0-6 km bulk shear
18 kt
0-1 km storm-relative helicity
3 m²/s²
0-3 km storm-relative helicity
20 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 132319
SVRBOX
MAC005-132345-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TAUNTON MA
717 PM EDT WED AUG 13 2003

THE NATIONAL WEATHER SERVICE IN TAUNTON HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  CENTRAL BRISTOL COUNTY IN SOUTHEAST MASSACHUSETTS
    INCLUDING FALL RIVER

* UNTIL 745 PM.

* AT 712 PM...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A   
  SEVERE THUNDERSTORM OVER SOUTHERN SEEKONK AND SOUTHERN REHOBOTH 
  MASSACHUSETTS.  THE STORM WAS SLOWLY DRIFTING SOUTHEAST AT 20 
  MILES AN HOUR.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  SWANSEA AROUND 730 PM
  SOMERSET AROUND 740 PM
  FALL RIVER AROUND 745 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 4190 7126 4178 7132 4166 7115 4177 7105

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 12, 8:23 PM EDTFlash Flood WarningBOXWorcester3 hr
Aug 13, 3:00 PM EDTSevere Thunderstorm WarningBOXMiddlesex45 min
Aug 13, 3:27 PM EDTSpecial Marine WarningBOX93 min
Aug 13, 3:27 PM EDTSpecial Marine WarningBOX93 min
Aug 13, 3:29 PM EDTSpecial Marine WarningBOX22 hr
Aug 13, 3:29 PM EDTSpecial Marine WarningBOX22 hr
Aug 13, 4:50 PM EDTSpecial Marine WarningBOX70 min
Aug 13, 4:50 PM EDTSpecial Marine WarningBOX70 min
Aug 13, 4:51 PM EDTSpecial Marine WarningBOX21 hr
Aug 13, 4:51 PM EDTSpecial Marine WarningBOX21 hr
Aug 13, 5:20 PM EDTSevere Thunderstorm WarningBOXPlymouth40 min
Aug 13, 5:51 PM EDTFlash Flood WarningBOXPlymouth3 hr
Aug 13, 7:28 PM EDTFlash Flood WarningBOXBristol3 hr
Aug 13, 7:40 PM EDTSpecial Marine WarningBOX21 hr
Aug 13, 7:40 PM EDTSpecial Marine WarningBOX65 min

Nearby

Severe Thunderstorm Warnings in Massachusetts, 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.