Alert archive / Massachusetts / Severe Thunderstorm Warnings in 1993

Severe Thunderstorm Warning 4, NWS Boston/Norton, MA

May 15, 1993Hampshire County, Massachusetts

NWS Boston/Norton, MA issued this severe thunderstorm warning at May 15, 1993, 6:32 PM EDT for Hampshire County, Massachusetts. It was in force for 28 min.

The area

The counties it named.

The facts

Issued
May 15, 1993, 6:32 PM EDT (22:32 UTC)
Expired
May 15, 1993, 7:00 PM EDT
In force
28 min
Issued by
NWS Boston/Norton, MA
Area
Whole counties

County Hampshire County, MA

The nearest sounding before it

Albany, NY (KALB), launched 12:00Z, 10.5 hours before the alert went out and 103 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 1993-05-15Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 1993-05-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 200 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1385 m above ground
0-6 km bulk shear
40 kt
0-1 km storm-relative helicity
200 m²/s²
0-3 km storm-relative helicity
231 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 
WUUS1 KORH 152235
SVRBOX
MAC011-015-152300-                                                

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE WORCESTER MA
632 PM EDT SAT MAY 15 1993

THE NATIONAL WEATHER SERVICE IN WORCSETER HAS ISSUED A SEVERE
THUNDERSTORM WARNING EFFECTIVE UNTIL  700 PM EDT FOR PEOPLE IN THE
FOLLOWING LOCATION...

IN WESTERN MASSACHUSETTS

   ...HAMPSHIRE COUNTY

AT 630 PM NATIONAL WEATHER SERVICE RADAR SHOWED A SEVERE THUNDERSTORM
IN EASTERN BERKSHIRE COUNTY. THIS STORM IS MOVING INTO HAMPSHIRE    
COUNTY AND HAS A HISTORY OF PRODUCING DIME SIZE HAIL.

THIS THUNDERSTORM IS MOVING EAST AT ABOUT 30 MPH AND WILL BE IN THE 
PLAINFIELD AREA BY 640 PM.


IF THREATENING WEATHER APPROACHES YOU SHOULD GO TO SAFE SHELTER
IMMEDIATELY.   ASK THE NEAREST LAW ENFORCEMENT AGENCY TO RELAY
YOUR SEVERE WEATHER REPORTS TO THE LOCAL NATIONAL WEATHER
SERVICE OFFICE.

BILODEAU

Nearby

Severe Thunderstorm Warnings in Massachusetts, 1993Every severe thunderstorm warning in 1993

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.