Alert archive / Connecticut / Severe Thunderstorm Warnings in 1993

Severe Thunderstorm Warning 7, NWS Boston/Norton, MA

June 9, 1993Northeastern Connecticut Planning Region, Connecticut

NWS Boston/Norton, MA issued this severe thunderstorm warning at Jun 9, 1993, 4:00 PM EDT for Northeastern Connecticut Planning Region, Connecticut. It was in force for 2 hr.

The area

The counties it named.

The facts

Issued
Jun 9, 1993, 4:00 PM EDT (20:00 UTC)
Expired
Jun 9, 1993, 6:00 PM EDT
In force
2 hr
Issued by
NWS Boston/Norton, MA
Area
Whole counties

County Northeastern Connecticut Planning Region, CT

The nearest sounding before it

Chatham, MA (KCHH), launched 12:00Z, 8.0 hours before the alert went out and 167 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 1993-06-09Temperature 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, Chatham, MA at 12:00Z on 1993-06-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 194 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
722 m above ground
0-6 km bulk shear
56 kt
0-1 km storm-relative helicity
194 m²/s²
0-3 km storm-relative helicity
331 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 KBDL 092000 RRA
SVRBDL
CTC013-015-092200-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE HARTFORD CT
400 PM EDT WED JUN 9 1993
 
THE NATIONAL WEATHER SERVICE IN HARTFORD HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  600 PM EDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN NORTH CENTRAL CONNECTICUT
 
   ...TOLLAND COUNTY
 
IN NORTHEAST CONNECTICUT
 
   ...WINDHAM COUNTY
 
A LINE OF SEVERE THUNDERSTORMS OVER THE CONNECTICUT RIVER VALLEY FROM
HARTFORD TO SPRINGFIELD WAS TRACKING EAST AT 40 MILES AN HOUR. THE
STORMS WILL MOVE ACROSS TOLLAND AND WINDHAM COUNTY BETWEEN 415 PM EDT
AND 615 PM EDT.
 
ALONG THE PATH OF THESE SEVERE STORMS TREES WERE REPORTED DOWN IN THE
TOWN OF LITCHFIELD ALONG WITH 60 MILE AN HOUR WIND GUSTS IN THE HARTFORD
VICINITY.
 
 
 
THIS IS A DANGEROUS STORM.  IF YOU ARE IN ITS PATH YOU SHOULD
PREPARE FOR DAMAGING WIND IN EXCESS OF 55 MPH...LARGE HAIL...AND
DEADLY LIGHT:NING.  PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER...
PREFERABLY INSIDE A STRONG BUILDING BUT STAY AWAY FROM WINDOWS.
 
SEKELSKY

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

In the hours before

Special weather statement, Jun 9, 1:50 PM EDT, 2 hours 10 minutes before
MAZALL-CTZALL-092000-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BOSTON MA
150 PM EDT WED JUN 9 1993

 ...A SEVERE THUNDERSTORM WATCH IS IN EFFECT UNTIL 600 PM EDT FOR
 WESTERN MASSACHUSETTS AND PORTIONS OF NORTHERN CONNECTICUT...

A SEVERE THUNDERSTORM WATCH IS IN EFFECT UNTIL 600 PM EDT FOR THE
COUNTIES OF BERKSHIRE...HAMPDEN...AND HAMPSHIRE IN MASSACHUSETTS...AND
THE CONNECTICUT COUNTIES OF HARTFORD AND LITCHFIELD.

AT 145 PM EDT NATIONAL WEATHER SERVICE RADAR SHOWED AN AREA OF SHOWERS
AND THUNDERSTORMS EXTENDING FROM CENTRAL NEW YORK TO WESTERN
PENNSYLVANIA MOVING EAST AT 40 MILES PER HOUR AND WILL MOVE INTO
WESTERN MASSACHUSETTS AND NORTHWESTERN CONNECTICUT BETWEEN 300 AND 500
PM.

IF THUNDERSTORMS APPROACH GO TO A SAFE PLACE...SUCH AS A HOME OR
LARGE BUILDING...OR INSIDE A VEHICLE.  DO NOT USE TELEPHONES OR
ELECTRICAL APPLIANCES UNLESS IT IS AN EMERGENCY.

STAY TUNED TO LOCAL RADIO AND TELEVISIONS STATIONS...OR NOAA
WEATHER RADIO FOR ANY FURTHER INFORMATION ON THIS SEVERE THUNDERSTORM
WATCH.

HANLEY
Special weather statement, Jun 9, 1:52 PM EDT, 2 hours 8 minutes before
MAZALL-CTZALL-092000-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BOSTON MA
150 PM EDT WED JUN 9 1993

 ...A SEVERE THUNDERSTORM WATCH IS IN EFFECT UNTIL 600 PM EDT FOR
 WESTERN MASSACHUSETTS AND PORTIONS OF NORTHERN CONNECTICUT...

A SEVERE THUNDERSTORM WATCH IS IN EFFECT UNTIL 600 PM EDT FOR THE
COUNTIES OF BERKSHIRE...HAMPDEN...AND HAMPSHIRE IN MASSACHUSETTS...AND
THE CONNECTICUT COUNTIES OF HARTFORD AND LITCHFIELD.

AT 145 PM EDT NATIONAL WEATHER SERVICE RADAR SHOWED AN AREA OF SHOWERS
AND THUNDERSTORMS EXTENDING FROM CENTRAL NEW YORK TO WESTERN
PENNSYLVANIA MOVING EAST AT 40 MILES PER HOUR AND WILL MOVE INTO
WESTERN MASSACHUSETTS AND NORTHWESTERN CONNECTICUT BETWEEN 300 AND 500
PM.

IF THUNDERSTORMS APPROACH GO TO A SAFE PLACE...SUCH AS A HOME OR
LARGE BUILDING...OR INSIDE A VEHICLE.  DO NOT USE TELEPHONES OR
ELECTRICAL APPLIANCES UNLESS IT IS AN EMERGENCY.

STAY TUNED TO LOCAL RADIO AND TELEVISIONS STATIONS...OR NOAAd
WEATHER RADIO FOR ANY FURTHER INFORMATION ON THIS SEVERE THUNDERSTORM
WATCH.

HANLEY
Special weather statement, Jun 9, 3:09 PM EDT, 51 minutes before
MAZALL-CTZALL-092100-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BOSTON MA
310 PM EDT WED JUN 9 1993

 ...SEVERE THUNDERSTORM WATCH IN EFFECT UNTIL 800 PM EDT FOR
 WESTERN AND CENTRAL MASSACHUSETTS AND ALL COUNTIES IN CONNECTICUT...

THE SEVERE THUNDERSTORM WATCH HAS BEEN EXTENDED UNTIL 800 PM EDT FOR
THE COUNTIES OF BERKSHIRE...HAMPDEN...HAMPSHIRE...FRANKLIN...WORCESTER
...AND MIDDLESEX IN MASSACHUSETTS...AND ALL COUNTIES IN CONNECTICUT.

AT 305 PM EDT NATIONAL WEATHER SERVICE RADAR SHOWED AN AREA OF SHOWERS
AND THUNDERSTORMS OVER THE HUDSON VALLEY IN NEW YORK.  THESE SHOWERS
AND THUNDERSTORMS WILL MOVE INTO WESTERN MASSACHUSETTS AND WESTERN
CONNECTICUT WITHIN THE HOUR.

IF THUNDERSTORMS APPROACH GO TO A SAFE PLACE...SUCH AS A HOME OR
LARGE BUILDING...OR INSIDE A VEHICLE.  DO NOT USE TELEPHONES OR
ELECTRICAL APPLIANCES UNLESS IT IS AN EMERGENCY.

STAY TUNED TO LOCAL RADIO AND TELEVISIONS STATIONS...OR NOAA
WEATHER RADIO ZFOR ANY FURTHER INFORMATION ON THIS SEVERE THUNDERSTORM
WATCH.

HANLEY
Special weather statement, Jun 9, 3:10 PM EDT, 50 minutes before
MAZALL-CTZALL-092100-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BOSTON MA
310 PM EDT WED JUN 9 1993

 ...SEVERE THUNDERSTORM WATCH IN EFFECT UNTIL 800 PM EDT FOR
 WESTERN AND CENTRAL MASSACHUSETTS AND ALL COUNTIES IN CONNECTICUT...

THE SEVERE THUNDERSTORM WATCH HAS BEEN EXTENDED UNTIL 800 PM EDT FOR
THE COUNTIES OF BERKSHIRE...HAMPDEN...HAMPSHIRE...FRANKLIN...WORCESTER
...AND MIDDLESEX IN MASSACHUSETTS...AND ALL COUNTIES IN CONNECTICUT.

AT 305 PM EDT NATIONAL WEATHER SERVICE RADAR SHOWED AN AREA OF SHOWERS
AND THUNDERSTORMS OVER THE HUDSON VALLEY IN NEW YORK.  THESE SHOWERS
AND THUNDERSTORMS WILL MOVE INTO WESTERN MASSACHUSETTS AND WESTERN
CONNECTICUT WITHIN THE HOUR.

IF THUNDERSTORMS APPROACH GO TO A SAFE PLACE...SUCH AS A HOME OR
LARGE BUILDING...OR INSIDE A VEHICLE.  DO NOT USE TELEPHONES OR
ELECTRICAL APPLIANCES UNLESS IT IS AN EMERGENCY.

STAY TUNED TO LOCAL RADIO AND TELEVISIONS STATIONS...OR NOAA
WEATHER RADIO FOR ANY FURTHER INFORMATION ON THIS SEVERE THUNDERSTORM
WATCH.

HANLEY
Special weather statement, Jun 9, 3:28 PM EDT, 32 minutes before
MAZ004-092030-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE WORCESTER MA
328 PM EDT WED JUN 9 1993

AN AREA OF THUNDERSTORMS HAVE MOVED INTO WESTERN MASSACHUSETTS AND
WESTERN CONNECTICUT. THESE STORMS ARE MOVING AT ABOUT 45 MPH. THESE
STORMS WILL BE IN SOUTH CENTRAL MASSACHUSETTS AND CENTRAL CONNECTICUT
BETWEEN 4 AND 5 PM EDT.
Special weather statement, Jun 9, 3:30 PM EDT, 30 minutes before
MAZ004-092030-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE WORCESTER MA
328 PM EDT WED JUN 9 1993

AN AREA OF THUNDERSTORMS HAVE MOVED INTO WESTERN MASSACHUSETTS AND
WESTERN CONNECTICUT. THESE STORMS ARE MOVING AT ABOUT 45 MPH. THESE
STORMS WILL BE IN SOUTH CENTRAL MASSACHUSETTS AND CENTRAL CONNECTICUT
BETWEEN 4 AND 5 PM EDT.

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 9, 3:04 PM EDTSevere Thunderstorm WarningBOXNorthwest Hills Planning Region56 min
Jun 9, 3:35 PM EDTSevere Thunderstorm WarningBOXCapitol Planning Region55 min

Nearby

Severe Thunderstorm Warnings in Connecticut, 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.