Alert archive / Massachusetts / Severe Thunderstorm Warnings in 1992

Severe Thunderstorm Warning 37, NWS Boston/Norton, MA

August 11, 1992Plymouth County, Massachusetts

NWS Boston/Norton, MA issued this severe thunderstorm warning at Aug 11, 1992, 3:59 PM EDT for Plymouth County, Massachusetts. It was in force for 31 min.

The area

The counties it named.

The facts

Issued
Aug 11, 1992, 3:59 PM EDT (19:59 UTC)
Expired
Aug 11, 1992, 4:30 PM EDT
In force
31 min
Issued by
NWS Boston/Norton, MA
Area
Whole counties

County Plymouth County, MA

The nearest sounding before it

Chatham, MA (KCHH), launched 12:00Z, 8.0 hours before the alert went out and 73 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 1992-08-11Temperature 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 1992-08-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 91 square meters per square second.193958Sfc1 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
868 m above ground
0-6 km bulk shear
31 kt
0-1 km storm-relative helicity
91 m²/s²
0-3 km storm-relative helicity
73 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 112000
SVRBOS
MAC023-112030-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM AND SPECIAL MARINE WARNING
NATIONAL WEATHER SERVICE BOSTON MA
359 PM EDT TUE AUG 11 1992
 
THE NATIONAL WEATHER SERVICE IN BOSTON HAS ISSUED A
SEVERE THUNDERSTORM AND SPECIAL MARINE WARNING
EFFECTIVE UNTIL  430 PM EDT
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN EAST MASSACHUSETTS
 
   ...EASTERN PLYMOUTH COUNTY
 
AND THE ADJACENT COASTAL WATERS.
 
 
AT 355 PM...RADAR INDICATED A VERY STRONG THUNDERSTORM NEAR
MARSHFIELD. IT MAY CONTAIN LARGE HAIL AND GUSTY WINDS TO 60 MPH
AS IT DRIFTS SOUTHEAST ALONG THE SOUTH SHORE TOWARD DUXBURY.
 
 
IF AFLOAT ON THE MASSACHUSETTS COASTAL WATERS...SEEK SAFE HARBOR
IMMEDIATELY.  DARK...THREATENING CLOUDS MAY FORETELL A SQUALL OR
THUNDERSTORM WITH DEADLY LIGHTNING...STRONG GUSTY WINDS AND ROUGH
WATERS.

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, Aug 11, 2:07 PM EDT, 1 hour 52 minutes before
MAZALL-RIZALL-CTZALL-120100-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BOSTON MA
200 PM EDT TUE AUG 11 1992

...SEVERE THUNDERSTORM WATCH FOR MOST OF SOUTHERN NEW ENGLAND...

SEVERE THUNDERSTORM WATCH NUMBER 754 HAS BEEN ISSUED FOR ALL OF RHODE
ISLAND...CONNECTICUT AND MOST OF MASSACHUSETTS EXCEPT FOR NORTHWEST
PORTIONS OF THE STATE AND EASTERN CAPE COD...EFFECTIVE UNTIL 9 PM EDT.

THE ATMOSPHERE OVER MOST OF SOUTHERN NEW ENGLAND HAS BECOME VERY MOIST
AND UNSTABLE IN ADVANCE OF A COLD FRONT PRESENTLY MOVING ACROSS
EASTERN PORTIONS OF NEW YORK AND PENNSYLVANIA.  AS THE COLD FRONT
APPROACHES SOUTHERN NEW ENGLAND...THE POTENTIAL FOR SEVERE
THUNDERSTORM DEVELOPMENT WILL INCREASE.

AT 2 PM EDT THERE WERE NO THUNDERSTORMS OVER SOUTHERN NEW
ENGLAND...BUT SOME POTENTIALLY SEVERE THUNDERSTORMS HAVE DEVELOPED
OVER NORTHERN NEW JERSEY AND SOUTHEAST NEW YORK STATE.

A SEVERE THUNDERSTORM WATCH MEANS THAT CONDITIONS ARE RIPE FOR THE
DEVELOPMENT OF SEVERE THUNDERSTORMS...WITH THE POTENTIAL FOR DAMAGING
WINDS. IF SEVERE WEATHER SHOULD DEVELOP...A SEVERE THUNDERSTORM
WARNING WILL BE ISSUED.

THE NEXT STATEMENT ON THIS POTENTIALLY DANGEROUS WEATHER SITUATION
WILL BE ISSUED AS NEEDED.

GURKA
Special weather statement, Aug 11, 3:05 PM EDT, 54 minutes before
CTZALL-MAZ005-042130-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE HARTFORD CT
305 PM EDT TUE AUG 4 1992

...THUNDERSTORMS CONTINUE TO DEVELOP AND MOVE INTO FAIRFIELD COUNTY...

AT 255 PM...A LINE OF THUNDERSTORMS STRETCHED FROM MERIDEN CONNECTICUT
SOUTHWEST TO NEAR RIDGEFIELD AND THEN WEST TO NORTHEASTERN
PENNSYLVANIA.  THE STRONGEST THUNDERSTORMS ARE ALONG THE CONNECTICUT/
NEW YORK BORDER ABOUT READY TO ENTER RIDGEFIELD CONNECTICUT AND NEAR
MERIDEN CONNECTICUT.  RADAR INDICATES THESE STORMS MAY CONTAIN HAIL
AND WAS MOVING SOUTHEAST AT 25 MILES AN HOUR.  A SPOTTER REPORT AT 300
PM INDICATED MARBLE SIZE HAIL IN WOLCOTT CONNECTICUT.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT FOR ALL OF CONNECTICUT
AND HAMPDEN COUNTY OF MASSACHUSETTS UNTIL 9 PM EDT.  REMEMBER A SEVERE
THUNDERSTORM WATCH MEANS CONDITIONS ARE FAVORABLE FOR THE DEVELOPMENT
OF THUNDERSTORMS CONTAINING LARGE HAIL...DAMAGING WINDS...DEADLY
LIGHTNING AND VERY HEAVY RAINS.

IF THREATENING WEATHER APPROACHES SEEK SAFE SHELTER IMMEDIATELY UNTIL
THE STORM HAS PASSED.  STAY TUNED TO LOCAL RADIO STATIONS OR NOAA
WEATHER RADIO OR UPDATES ON THIS STORM SITUATION.

IF YOU WITNESS SEVERE WEATHER...REPORT TO YOUR LOCAL POLICE AND ASK
THEM TO RELAY THE INFORMATION TO YOUR LOCAL NATIONAL WEATHER SERVICE
OFFICE.

WHITTIER
Special weather statement, Aug 11, 3:05 PM EDT, 54 minutes before
MAZALL-112100-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BOSTON MA
304 PM EDT TUE AUG 11 1992

...SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT FOR MOST OF
MASSACHUSETTS...

SEVERE THUNDERSTORM WATCH NUMBER 754 REMAINS IN EFFECT FOR MOST OF
MASSACHUSETTS EXCEPT FOR NORTHWEST AND EASTERN CAPE COD...EFFECTIVE
UNTIL 9 PM EDT.

AT 245 PM EDT...NATIONAL WEATHER SERVICE RADAR SHOWED A LINE OF
THUNDERSTORMS EXTENDING FROM CAPE ANN...TO SOUTHWEST OF BOSTON.
ANOTHER THUNDERSTORM WAS LOCATED NORTHEAST OF WORCESTER.  THESE STORMS
WERE MOVING TO THE EAST AT ABOUT 20 MPH.  SOME OF THESE STORMS HAD
HEAVY DOWNPOURS AND POSSIBLE HAIL.

BE ALERT FOR THREATENING WEATHER.  A SEVERE THUNDERSTORM WATCH MEANS
THAT CONDITIONS ARE RIPE FOR THE DEVELOPMENT OF SEVERE
THUNDERSTORMS...WITH THE POTENTIAL FOR DAMAGING WINDS AND HAIL. IF
SEVERE WEATHER SHOULD DEVELOP...A SEVERE THUNDERSTORM WARNING WILL BE
ISSUED.

THE NEXT STATEMENT ON THIS POTENTIALLY DANGEROUS WEATHER SITUATION
WILL BE ISSUED AS NEEDED.

GURKA
Special weather statement, Aug 11, 3:27 PM EDT, 32 minutes before
RIZALL-112100-

SPECIAL WEATHER STATMENT
NATIONAL WEATHER SERVICE PROVIDENCE RI
325 PM EDT SUN AUG 9 1992

...A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR RHODE ISLAND...

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT FOR ALL OF RHODE ISLAND
INCLUDING NARRAGANSETT BAY AND THE ADJACENT COASTAL WATERS UNTIL 9 PM
TONIGHT.

A SEVERE THUNDERSTORM WATCH MEANS THAT CONDITIONS ARE RIGHT FOR THE
DEVELOPMENT OF SEVERE THUNDERSTORMS WITH DAMAGING WINDS...LARGE HAIL
AND DEADLY LIGHTNING.  IF SEVERE WEATHER SHOULD DEVELOP...WARNINGS
WILL BE ISSUED.

AT 315 PM WEATHER SERVICE RADAR INDICATED DEVELOPING THUNDERSTORMS ALONG
THE NORTHERN RHODE ISLAND...MASSACHUSETTS BORDER NEAR BURRILLVILLE AND
CUMBERLAND. A THUNDERSTORM WITH VERY HEAVY RAIN WAS LOCATED EAST OF
HARTFORD CONNECTICUT.  SMALL HAIL WAS REPORTED WITH THIS THUNDERSTORM
IN WATERBURY CONNECTICUT.

ALL OF THE THUNDERSTORMS WERE MOVING EAST AROUND 20 MPH AND MAY BEGIN
TO EFFECT PARTS OF WE0STERN RHODE ISLAND BY 400 PM.

IF THREATENING WEATHER APPROACHES....HEAD INDOORS FOR SHELTER.

SISSON
Special weather statement, Aug 11, 3:47 PM EDT, 12 minutes before
RIZALL-112100-

SPECIAL WEATHER STATEMENT...CORRECTED
NATIONAL WEATHER SERVICE PROVIDENCE RI
325 PM EDT TUE AUG 11 1992

...A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR RHODE ISLAND...

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT FOR ALL OF RHODE ISLAND
INCLUDING NARRAGANSETT BAY AND THE ADJACENT COASTAL WATERS UNTIL 9 PM
TONIGHT.

A SEVERE THUNDERSTORM WATCH MEANS THAT CONDITIONS ARE RIGHT FOR THE
DEVELOPMENT OF SEVERE THUNDERSTORMS WITH DAMAGING WINDS...LARGE HAIL
AND DEADLY LIGHTNING.  IF SEVERE WEATHER SHOULD DEVELOP...WARNINGS
WILL BE ISSUED.

AT 315 PM WEATHER SERVICE RADAR INDICATED DEVELOPING THUNDERSTORMS ALONG
THE NORTHERN RHODE ISLAND...MASSACHUSETTS BORDER NEAR BURRILLVILLE AND
CUMBERLAND. A THUNDERSTORM WITH VERY HEAVY RAIN WAS LOCATED EAST OF
HARTFORD CONNECTICUT.  SMALL HAIL WAS REPORTED WITH THIS THUNDERSTORM
IN WATERBURY CONNECTICUT.

ALL OF THE THUNDERSTORMS WERE MOVING EAST AROUND 20 MPH AND MAY BEGIN
TO pEFFECT PARTS OF WESTERN RHODE ISLAND BY 400 PM.

IF THREATENING WEATHER APPROACHES....HEAD INDOORS FOR SHELTER.

SISSON
Special weather statement, Aug 11, 3:47 PM EDT, 12 minutes before
MAZ001>004-007>009-112200-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BOSTON MA
346 PM EDT TUE AUG 11 1992

...A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT FOR MOST OF
MASSACHUSETTS WITH THE EXCEPTION OF NANTUCKET ISLAND AND THE NORTHWEST
CORNER OF THE BAY STATE...

SO FAR...SEVERE WEATHER IN THE FORM OF LARGE HAIL HAS BEEN CONFINED
TO SOUTHWEST CONNECTICUT.  NO SEVERE WEATHER HAS BEEN REPORTED IN
MASSACHUSETTS.

AT 345 PM...RADAR INDICATED SEVERAL LINES OF SHOWERS AND THUNDERSTORMS
ACROSS THE SOUTHEAST THIRD OF MASSACHUSETTS.  STRONGEST STORMS WERE
LOCATED OVER SOUTHERN NORFOLK COUNTY FROM NEAR SCITUATE TO FOXBORO AND
WRENTHAM TO NEAR THE NORTHERN RHODE ISLAND BORDER.

A SHORTER LINE OF STORMS WAS MIDWAY BETWEEN WORCESTER AND BOSTON.

SHOWERS AND THUNDERSTORMS WERE DRIFTING EAST TO SOUTHEAST.

VERY HEAVY RAIN...LIGHTNING STRIKES AND SMALL HAIL MAY OCCUR AS THE
STORMS PASS THROUGH THE WEST AND SOUTHERN PARTS OF THE BOSTON METRO
AREA AS WELL AS SOUTHEAST MASSACHUSETTS LATE THIS AFTERNOON.

BE ALERT FOR THREATENING WEATHER.  A SEVERE THUNDERSTORM WATCH MEANS
THAT CONDITIONS ARE RIPE FOR THE DEVELOPMENT OF THUNDERSTORMS...WITH
THE POTENTIAL FOR DAMAGING WINDS ANrD HAIL. IF SEVERE WEATHER SHOULD
DEVELOP...A SEVERE THUNDERSTORM WARNING WILL BE ISSUED.

THE NEXT STATEMENT ON THIS POTENTIALLY DANGEROUS WEATHER SITUATION
WILL BE ISSUED BY 445 PM.

DRAG

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 11, 4:55 PM EDTSevere Thunderstorm WarningBOXFranklin, Worcester

Nearby

Severe Thunderstorm Warnings in Massachusetts, 1992Every severe thunderstorm warning in 1992

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.