Alert archive / Massachusetts / Severe Thunderstorm Warnings in 1989

Severe Thunderstorm Warning 28, NWS Boston/Norton, MA

July 28, 1989Plymouth County, Massachusetts

NWS Boston/Norton, MA issued this severe thunderstorm warning at Jul 28, 1989, 4:08 PM EDT for Plymouth County, Massachusetts. It was in force for 52 min.

The area

The counties it named.

The facts

Issued: Jul 28, 1989, 4:08 PM EDT (20:08 UTC)
Expired: Jul 28, 1989, 5:00 PM EDT
In force: 52 min
Issued by: NWS Boston/Norton, MA
Area: Whole counties

County Plymouth County, MA

The radar

The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.

The nearest sounding before it

Chatham, MA (KCHH), launched 12:00Z, 8.1 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 74 J/kg
Mixed-layer CIN: -162 J/kg
Mixed-layer LCL: 1046 m above ground
0-6 km bulk shear: 19 kt
0-1 km storm-relative helicity: 44 m²/s²
0-3 km storm-relative helicity: 88 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.1

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
TTAA00 KBOS 282010
SVRBOS
MAC023-282100-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BOSTON MASSACHUSETTS
408 PM EDT FRI JUL 28 1989
 
THE NATIONAL WEATHER SERVICE IN BOSTON MASSACHUSETTS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  500 PM EDT
FOR PEOPLE IN THE FOLLOWING COUNTY...
 
IN EAST MASSACHUSETTS
          ...EASTERN PLYMOUTH
 
AT 405 PM EDT...WEATHER RADAR INDICATED A SEVERE THUNDERSTORM NEAR
MARSHFIELD MOVING SOUTHEAST AT 30 MILES AN HOUR. THE STORM SHOULD PASS
NEAR PLYMOUTH AND ADJACENT COASTAL WATERS AROUND 430 PM.
 
 
IF YOU ARE CAUGHT OUTSIDE...SEEK SHELTER FROM THE WEATHER IN A
STRONG BUILDING.  DAMAGING WIND...LARGE HAIL...VERY HoEAVY RAIN...
AND DEADLY LIGHTNING ARE ALL POSSIBLE IN SEVERE THUNDERSTORMS.
STAY INSIDE AWAY FROM WINDOWS UNTIL THE STORM HAS PASSED.
 
DORR

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, Jul 28, 1:50 PM EDT, 2 hours 18 minutes before

SPECIAL WEATHER STATEMENT FOR MASSACHUSETTS
NATIONAL WEATHER SERVICE BOSTON MA
145 PM EDT FRI JUL 28 1989

...SEVERE THUNDERSTORM WATCH FOR ALL MASSACHUSETTS EXCEPT CAPE COD
UNTIL 7 PM EDT THIS EVENING.

SEVERE THUNDERSTORM WATCH NUMBER 639 HAS BEEN ISSUED FOR ALL OF
MASSACHUSETTS...EXCEPT CAPE COD AND THE ISLANDS...EFFECTIVE UNTIL 7 PM
EDT.

A LINE OF THUNDERSTORMS EXTENDING FROM SOUTHERN MAINE TO NORTHWESTERN
MASSACHUSETTS WILL INTNESIFY AS IT MOVES TO THE SOUTHEAST THIS EVENING.
SEVERAL SEVERE THUNDERSTORMS HAVE ALREADY BEEN REPORTED WITHIN THIS LINE
...WITH DAMAGING WINDS AND HAIL.  THE THUNDERSTORMS WERE MOVING SOUTHEAST
AT ABOUT 30 MPH.

THE SEVERE THUNDERSTORM WATCH MEANS THAT SOME THUNDERSTORMS MAY
CONTAIN DAMAGING WINDS OF 60 MILES AN HOUR OR MORE AND LARGE HAIL OF
THREE-QUARTERS OF AN INCH IN DIAMETER OR GREATER.

PERSONS WITHIN OR NEAR THE WATCH AREA SHOULD PAY ATTENTION TO THIS
DEVELOPING WEATHER SITUATION.  BE PREPAR\ED TO TAKE QUICK ACTION IN
CASE SEVERE WEATHER IS OBSERVED OR A WARNING IS ISSUED.

THE NEXT STATEMENT ON THIS SITUATION WILL BE ISSUED BY THE NATIONAL
WEATHER SERVICE IN BOSTON AROUND 4 PM.

BTS

Special weather statement, Jul 28, 2:03 PM EDT, 2 hours 5 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE HARTFORD CT
200 PM FRI FRI JUL 28 1989

...SEVERE THUNDERSTORM WATCH FOR ALL OF CONNECTICUT AND THE GREATER
SPRINGFIELD AREA UNTIL 7 PM EDT THIS EVENING...

A LINE OF THUNDERSTORMS EXTENDING FROM SOUTHERN MAINE TO NORTHWESTERN
MASSACHUSETTS WILL INTENSIFY AS IT MOVES TO THE SOUTHEAST THIS
EVENING.  SEVERAL SEVERE THUNDERSTORMS HAVE ALREADY BEEN REPORT
WITHIN THIS LINE...WITH DAMAGING WINDS AND HAIL.  THE THUNDERSTORMS
WERE MOVING SOUTHEAST ABOUT 30 MILES AN HOUR.

THE SEVERE THUNDERSTORM WATCH MEANS THAT SOME THUNDERSTORMS MAY
CONTAIN DAMAGING WINDS OF 60 MILES AND HOUR OR MORE AND LARGE HAIL OF
THREE-QUARTERS OF AN INCH IN DIAMETER OR GREATER.

PERSONS WITHIN OR NEAR THE WATCH AREA SHOULD PAY ATTENTION TO THIS
DEVELOPING WEATHER SITUATION.  BE PERPARED TO TAKE QUICK ACTION IN
CASE SEVERE WEATHER IS OBSERVED OR A WARNING IS ISSUED.

THE NEXT STATEMENT ON THIS SITUATION WILL BE ISStUED AS NECESSARY BY
THE NATIONAL WEATHER SERVICE.

WBK

Special weather statement, Jul 28, 2:05 PM EDT, 2 hours 3 minutes before

SPECIAL WEATHER STATEMENT FOR RHODE ISLAND
NATIONAL WEATHER SERVICE PROVIDENCE RI
200 PM EDT FRI JUL 28 1989

...SEVERE THUNDERSTORM WATCH IN EFFECT FOR ALL OF RHODE ISLAND UNTIL
7 PM THIS EVENING...

A SEVERE THUNDERSTORM WATCH HAS BEEN ISSUED FOR ALL OF RHODE ISLAND
EFFECTIVE UNTIL 7 PM.

A LINE OF THUNDERSTORMS EXTENDING FROM SOUTHERN MAINE TO NORTHWESTERN
MASSACHUSETTS WILL INTENSIFY AS IT MOVES TO THE SOUTHEAST THIS EVENING.
SEVERAL SEVERE THUNDERSTORMS HAVE ALREADY BEEN REPORTED WITHIN THIS LINE
...WITH DAMAGING WIND AND HAIL.  THE THUNDERSTORMS WERE MOVING SOUTHEAST
AT ABOUT 30 MPH.

THE SEVERE THUNDERSTORM WATCH MEANS THAT SOME THUNDERSTORMS MAY
CONTAIN DAMAGING WIND OF 60 MILES AN HOUR OR MORE AND LARGE HAIL OF
THREE-QUARTERS OF AN INCH IN DIAMETER OR GREATER.

PERSONS WITHIN OR NEAR THE WATCH AREA SHOULD PAY ATTENTION TO THIS
DEVELOPING WEATHER SITUATION.  BE PREPARED TO TAKE QUICK ACTION IN
CASE SEVERE WEATHER IS OBSERuVED OR A WARNING IS ISSUED.

THE NEXT STATEMENT ON THIS SITUATION WILL BE ISSUED BY THE NATIONAL
WEATHER SERVICE AROUND 4 PM.
JWH

Local storm report, Jul 28, 2:47 PM EDT, 1 hour 21 minutes before

LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BOSTON MA
250 PM EDT FRI JULY 28 1989

TIME(EDT)  LOCATION            REPORT

204 PM   LEE MA                DIME SIZED HAIL
         (BERKSHIRE CTY)
210 PM   GREENFIELD MA         LARGE OAK TREES DOWN
         (FRANKLIN CTY)        WINDS ESTIMATED OVER 50KTS
220 PM   BECKETT               42 KNOT WINDS
         (BERKSIRE CTY)

END/JSW

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 27, 9:30 PM EDT	Severe Thunderstorm Warning	BOX	Franklin, Hampshire	90 min
Jul 27, 10:40 PM EDT	Severe Thunderstorm Warning	BOX	Hampden	65 min
Jul 28, 12:35 AM EDT	Severe Thunderstorm Warning	BOX	Bristol, Plymouth	55 min
Jul 28, 1:05 AM EDT	Severe Thunderstorm Warning	BOX	Nantucket	55 min
Jul 28, 1:05 AM EDT	Severe Thunderstorm Warning	BOX	Barnstable	55 min
Jul 28, 2:05 PM EDT	Severe Thunderstorm Warning	BOX	Franklin, Hampshire	70 min
Jul 28, 2:48 PM EDT	Severe Thunderstorm Warning	BOX	Hampden	57 min
Jul 28, 3:00 PM EDT	Severe Thunderstorm Warning	BOX	Worcester	60 min
Jul 28, 3:15 PM EDT	Severe Thunderstorm Warning	BOX	Middlesex	60 min
Jul 28, 3:57 PM EDT	Severe Thunderstorm Warning	BOX	Norfolk	63 min

Nearby

Severe Thunderstorm Warnings in Massachusetts, 1989 Every severe thunderstorm warning in 1989

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.