Alert archive / Massachusetts / Severe Thunderstorm Warnings in 1995

Severe Thunderstorm Warning 69, NWS Boston/Norton, MA

July 18, 1995Franklin County, Massachusetts

NWS Boston/Norton, MA issued this severe thunderstorm warning at Jul 18, 1995, 6:57 PM EDT for Franklin County, Massachusetts. It was in force for 33 min.

The area

The counties it named.

The facts

Issued
Jul 18, 1995, 6:57 PM EDT (22:57 UTC)
Expired
Jul 18, 1995, 7:30 PM EDT
In force
33 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, 11.0 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 182248 RRA
SVRBOS
MAC011-015-182330-
 
BULLETIN - EBS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TAUNTON MA
647 PM EDT TUE JUL 18 1995
 
THE NATIONAL WEATHER SERVICE IN TAUNTON HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  730 PM EDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN WEST MASSACHUSETTS
 
   ...SOUTHERN FRANKLIN COUNTY...NORTHERN HAMPSHIRE COUNTY
 
AT 645 PM...WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE
THUNDERSTORM MOVING INTO NORTHWEST HAMPSHIRE AND SOUTHWEST FRANKLIN
COUNTIES FROM CUMMINGTON TO HAWLEY. THIS STORM WILL CONTINUE EAST
AFFECTING TOWNS ALONG THE HAMPSHIRE...FRANKLIN COUNTY BORDER THROUGH
730 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, 6:18 PM EDTSevere Thunderstorm WarningBOXFranklin42 min
Jul 18, 6:41 PM EDTSevere Thunderstorm WarningBOXWorcester64 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.