Alert archive / Massachusetts / Severe Thunderstorm Warnings in 1995

Severe Thunderstorm Warning 10, NWS Boston/Norton, MA

April 4, 1995Norfolk County, Massachusetts

NWS Boston/Norton, MA issued this severe thunderstorm warning at Apr 4, 1995, 3:25 PM EDT for Norfolk County, Massachusetts. It was in force for 65 min.

The area

The counties it named.

The facts

Issued
Apr 4, 1995, 3:25 PM EDT (19:25 UTC)
Expired
Apr 4, 1995, 4:30 PM EDT
In force
65 min
Issued by
NWS Boston/Norton, MA
Area
Whole counties

County Norfolk County, MA

The radar

The Boston radar (KBOX), 24 km from the middle of the area, began a volume at 19:26 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Chatham, MA (KCHH), launched 12:00Z, 7.4 hours before the alert went out and 115 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 1995-04-04Temperature 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 1995-04-04The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 340 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
716 m above ground
0-6 km bulk shear
47 kt
0-1 km storm-relative helicity
340 m²/s²
0-3 km storm-relative helicity
401 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 041924 RRA
SVRBOS
MAC021-042030-
 
BULLETIN - EBS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TAUNTON MA
325 PM EDT TUE APR 4 1995
 
THE NATIONAL WEATHER SERVICE IN TAUNTON HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  430 PM EDT
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN  MASSACHUSETTS
 
   ...NORFOLK COUNTY
 
AND THE ADJACENT COASTAL WATERS.
 
 
SEVERE THUNDERSTORMS WERE MOVING ACROSS WORCESTER COUNTY. THEY WILL
ENTER NORFOLK COUNTY BY 330 PM. THESE THUNDERSTORMS HAVE PRODUCED WIND
GUSTS TO 70 MPH AT WORCESTER AIRPORT.
 
 
SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 55
MPH...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN.
FOR YOUR dPROTECTION 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.
 
 
 
&

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

Local storm report, Apr 4, 2:21 PM EDT, 1 hour 4 minutes before
LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TAUNTON MA
220 PM EDT TUE APR 4 1995

A WEATHER SERVICE SPOTTER IN SOUTHINGTON CT REPORTED WIND GUSTS TO
56 MPH WITH CONSIDERABLE WIND DAMAGE AT 210 PM.

&
`
VALLIER-TALBOT
Local storm report, Apr 4, 2:24 PM EDT, 1 hour 1 minute before
LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TAUNTON MA
321 PM EDT TUE APR 4 1995

AT ABOUT 314 PM...THE NATIONAL WEATHER SERVICE AT WORCESTER REPORTED A
WIND GUST TO 64 MPH.

&
DRAG
Special weather statement, Apr 4, 3:21 PM EDT, 4 minutes before
CTZ002>004-MAZ002>024-RIZALL-042200-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TAUNTON MA
320 PM EST TUE APR 4 1995

...SEVERE THUNDERSTORM WATCH CANCELED FOR THE WESTERN HALF OF
MASSACHUSETTS...

A STRONG COLD FRONT AND ASSOCIATED LINE OF SEVERE THUNDERSTORMS HAS
MOVED INTO CENTRAL MASSACHUSETTS AND NO LONGER POSES A THREAT FOR
BERKSHIRE...FRANKLIN...HAMPSHIRE AND HAMPDEN COUNTIES.  THEREFORE THE
SEVERE THUNDERSTORM WATCH HAS BEEN CANCEPLED FOR THOSE COUNTIES.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 600 PM EDT FOR THE
REMAINDER OF MASSACHUSETTS...EXCEPT THE CAPE...AS WELL AS ALL OF
CONNECTICUT AND RHODE ISLAND.

DCY
Local storm report, Apr 4, 3:21 PM EDT, 4 minutes before
LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TAUNTON MA
321 PM EDT TUE APR 4 1995

AT ABOUT 314 PM...THE NATIONAL WEATHER SERVICE AT WORCESTER REPORTED A
WIND GUST TO 64 MPH.

&
DRAG

MAGE.

VALLIER-TALBOT

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 4, 2:06 PM EDTSevere Thunderstorm WarningBOXHampden, Hampshire69 min
Apr 4, 2:06 PM EDTSevere Thunderstorm WarningBOXFranklin69 min
Apr 4, 2:46 PM EDTSevere Thunderstorm WarningBOXWorcester59 min
Apr 4, 3:05 PM EDTSevere Thunderstorm WarningBOXMiddlesex, Worcester70 min
Apr 4, 3:29 PM EDTSevere Thunderstorm WarningBOXBristol61 min
Apr 4, 3:45 PM EDTSevere Thunderstorm WarningBOXEssex, Suffolk60 min
Apr 4, 3:50 PM EDTSevere Thunderstorm WarningBOXWorcester25 min
Apr 4, 3:53 PM EDTSevere Thunderstorm WarningBOXPlymouth67 min
Apr 4, 4:17 PM EDTSevere Thunderstorm WarningBOXMiddlesex28 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; radar from the NEXRAD Level II archive.