Alert archive / Massachusetts / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 57, NWS Boston/Norton, MA

June 26, 1998Bristol County, Plymouth County, Massachusetts

NWS Boston/Norton, MA issued this severe thunderstorm warning at Jun 26, 1998, 5:45 PM EDT for Bristol County, Plymouth County, Massachusetts. It was in force for 65 min. 4 reports came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued
Jun 26, 1998, 5:45 PM EDT (21:45 UTC)
Expired
Jun 26, 1998, 6:50 PM EDT
In force
65 min
Issued by
NWS Boston/Norton, MA
Area
Whole counties

Counties Bristol County, MA, Plymouth County, MA

What was reported inside it

TimeReportWhereRemark
Jun 26, 5:46 PM EDTThunderstorm Wind 50North Dartmouth, MA
Jun 26, 6:05 PM EDTHail 0.75New Bedford, MA
Jun 26, 6:20 PM EDTThunderstorm Wind 50Mattapoisett, MA
Jun 26, 6:30 PM EDTThunderstorm Wind 60Acushnet, MA

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.

The nearest sounding before it

Chatham, MA (KCHH), launched 12:00Z, 9.8 hours before the alert went out and 81 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 1998-06-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 643 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Chatham, MA at 12:00Z on 1998-06-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 88 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
643 J/kg
Mixed-layer CIN
-145 J/kg
Mixed-layer LCL
950 m above ground
0-6 km bulk shear
33 kt
0-1 km storm-relative helicity
88 m²/s²
0-3 km storm-relative helicity
108 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.2

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
TTAA00 KBOS 262145 RRA
SVRBOS
MAC005-023-262250-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TAUNTON MA
545 PM EDT FRI JUN 26 1998

THE NATIONAL WEATHER SERVICE IN TAUNTON HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHERN BRISTOL MA COUNTY IN SOUTHEASTERN MASSACHUSETTS
  SOUTHERN PLYMOUTH COUNTY IN SOUTHEASTERN MASSACHUSETTS

* UNTIL 650 PM EDT

* AT 540 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM OVER NORTHWEST DARTMOUTH...MOVING EAST AT 20
  MPH.

* TOWNS IN/NEAR THE PATH OF THIS STORM INCLUDE...
  NEW BEDFORD...ACUSHNET AND FAIRHAVEN BY 6 PM
  ROCHESTER...MATTAPOISETT...MARION AND WAREHAM BY 615 PM

SEVERE THUNDERSTORMS PRODUCE WINDS STRONG ENOUGH TO KNOCK DOWN
TREES AND POWER LINES.  MOVE INDOORS AND STAY AWAY FROM WINDOWS.

DRV/WB

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 26, 11:43 AM EDTSevere Thunderstorm WarningBOXBarnstable37 min
Jun 26, 6:34 PM EDTSevere Thunderstorm WarningBOXBarnstable36 min

Nearby

Severe Thunderstorm Warnings in Massachusetts, 1998Every severe thunderstorm warning in 1998

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.