Alert archive / Massachusetts / Severe Thunderstorm Warnings in 1995

Severe Thunderstorm Warning 67, NWS Boston/Norton, MA

July 18, 1995Franklin County, Massachusetts

NWS Boston/Norton, MA issued this severe thunderstorm warning at Jul 18, 1995, 6:18 PM EDT for Franklin County, Massachusetts. It was in force for 42 min.

The area

The counties it named.

The facts

Issued
Jul 18, 1995, 6:18 PM EDT (22:18 UTC)
Expired
Jul 18, 1995, 7:00 PM EDT
In force
42 min
Issued by
NWS Boston/Norton, MA
Area
Whole counties

County Franklin County, MA

The nearest sounding before it

Albany, NY (KALB), launched 12:00Z, 10.3 hours before the alert went out and 102 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, Albany, NY at 12:00Z on 1995-07-18Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 158 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, Albany, NY at 12:00Z on 1995-07-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 51 square meters per square second.19395878Sfc1 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
158 J/kg
Mixed-layer CIN
-84 J/kg
Mixed-layer LCL
542 m above ground
0-6 km bulk shear
35 kt
0-1 km storm-relative helicity
51 m²/s²
0-3 km storm-relative helicity
69 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 
TTAA00 KBOS 182219 RRA
SVRBOS
MAC011-182300-
 
BULLETIN - EBS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TAUNTON MA
618 PM EDT TUE JUL 18 1995
 
THE NATIONAL WEATHER SERVICE IN TAUNTON HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  700 PM EDT
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN WEST MASSACHUSETTS
 
   ...NORTHERN FRANKLIN COUNTY
 
AT 615 PM WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM
IN NORTH CENTRAL FRANKLIN COUNTY NEAR GREENFIELD. THIS STORM WILL
MOVE EAST ACROSS NORTHERN FRANKLIN COUNTY AFFECTING TOWNS ALONG AND
NORTH OF A LINE FROM DEERFIELD TO NEW SALEM THROUGH 7 PM.
 
SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 55
MPH...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN.
FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR
OF YOUR HOME OR BUSINESS.  HEAVY RAINS FLOOD ROADS QUICKLY SO
DON'T DRIVE INTO AREAS WHERE WATER COVERS THE ROAD.
 
DRV/WD

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 18, 6:41 PM EDTSevere Thunderstorm WarningBOXWorcester64 min
Jul 18, 6:57 PM EDTSevere Thunderstorm WarningBOXFranklin33 min
Jul 18, 7:15 PM EDTTornado WarningBOXWorcester30 min
Jul 18, 7:45 PM EDTSevere Thunderstorm WarningBOXMiddlesex, Worcester30 min

Nearby

Severe Thunderstorm Warnings in Massachusetts, 1995Every severe thunderstorm warning in 1995

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.