Alert archive / Massachusetts / Severe Thunderstorm Warnings in 2002

Severe Thunderstorm Warning 28, NWS Boston/Norton, MA

June 2, 2002Essex County, Massachusetts

NWS Boston/Norton, MA issued this severe thunderstorm warning at Jun 2, 2002, 1:39 PM EDT for Essex County, Massachusetts. It was in force for 36 min. 1 report 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 2, 2002, 1:39 PM EDT (17:39 UTC)
Expired
Jun 2, 2002, 2:15 PM EDT
In force
36 min
Issued by
NWS Boston/Norton, MA
Area
Whole counties

County Essex County, MA

What was reported inside it

TimeReportWhereRemark
Jun 2, 2:15 PM EDTThunderstorm Wind 50 ESwampscott, 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, 5.7 hours before the alert went out and 131 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 2002-06-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 12 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 2002-06-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -7 square meters per square second.1939587897Sfc1 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
12 J/kg
Mixed-layer CIN
-351 J/kg
Mixed-layer LCL
1507 m above ground
0-6 km bulk shear
54 kt
0-1 km storm-relative helicity
-7 m²/s²
0-3 km storm-relative helicity
96 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 021739
SVRBOX
MAC009-021815-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TAUNTON MA
139 PM EDT SUN JUN 2 2002

THE NATIONAL WEATHER SERVICE IN TAUNTON HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  CENTRAL ESSEX COUNTY IN EASTERN MASSACHUSETTS
    INCLUDING LAWRENCE

* UNTIL 215 PM EDT.

* AT 136 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM 5 MILES WEST OF METHUEN...OR ABOUT 4 MILES
  NORTHEAST OF LOWELL...MOVING EAST AT 30 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  LAWRENCE AND METHUEN AROUND 145 PM EDT
  ANDOVER AND NORTH ANDOVER AROUND 150 PM EDT
  TOPSFIELD AND BOXFORD AROUND 205 PM EDT
  WENHAM AROUND 215 PM EDT.

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

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 2, 12:05 PM EDTSevere Thunderstorm WarningBOXMiddlesex, Worcester40 min
Jun 2, 12:52 PM EDTSpecial Marine WarningBOX68 min
Jun 2, 12:52 PM EDTSpecial Marine WarningBOX68 min
Jun 2, 12:57 PM EDTSpecial Marine WarningBOX21 hr
Jun 2, 12:57 PM EDTSpecial Marine WarningBOX21 hr
Jun 2, 2:26 PM EDTSpecial Marine WarningBOX64 min
Jun 2, 2:27 PM EDTSpecial Marine WarningBOX21 hr

Nearby

Severe Thunderstorm Warnings in Massachusetts, 2002Every severe thunderstorm warning in 2002

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.