Alert archive / Massachusetts / Severe Thunderstorm Warnings in 1989

Severe Thunderstorm Warning 1, NWS Boston/Norton, MA

May 21, 1989Worcester County, Massachusetts

NWS Boston/Norton, MA issued this severe thunderstorm warning at May 21, 1989, 4:00 PM EDT for Worcester County, Massachusetts. It was in force for 60 min.

The area

The counties it named.

The facts

Issued
May 21, 1989, 4:00 PM EDT (20:00 UTC)
Expired
May 21, 1989, 5:00 PM EDT
In force
60 min
Issued by
NWS Boston/Norton, MA
Area
Whole counties

County Worcester 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

Albany, NY (KALB), launched 12:00Z, 8.0 hours before the alert went out and 162 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 1989-05-21Temperature 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 1989-05-21The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 81 square meters per square second.1939Sfc1 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
0 m above ground
0-6 km bulk shear
29 kt
0-1 km storm-relative helicity
81 m²/s²
0-3 km storm-relative helicity
108 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

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, May 21, 1:08 PM EDT, 2 hours 52 minutes before
SPECIAL WEATHER STATEMENT FOR MASSACHUSETTS
NATIONAL WEATHER SERVICE BOSTON MA
1 PM EDT SUN MAY 21 1989

...THUNDERSTORMS DEVELOPING IN EASTERN NEW YORK...

A LINE OF SHOWERS WITH A FEW THUNDERSTORMS IS PRESENTLY MOVING THROUGH
THE ALBANY AND POUGHKEEPSIE NEW YORK AREA.  BRIEFLY HEAVY RAIN...WINDS
GUSTING TO 35 MPH AND AN OBSERVATION OF SMALL HAIL HAVE BEEN REPORTED
WITH THIS LINE WHICH IS MOVING EAST AT 20 TO 25 MILES AN HOUR.

THE LINE WILL MOVE THROUGH THE BERKSHIRES DURING THE NEXT HOUR OR
SO...THEN ACROSS THE REST OF THE STATE...REACHING THE COAST AROUND 6
PM.  SQUALLY WINDS UP TO 45 MILES AN HOUR...BRIEFLY HEAVY RAIN AND
SOME SMALL HAIL MAY ACCOMPANY SOME OF THE STORMS AS THEY MOVE EAST
THIS AFTERNOON.

A SMALL CRAFT ADVISORY IS BEING ISSUED FOR THE COASTAL WATERS IN VIEW
OF THE APPROACHING STORMS AND BECAUSE WINDS MAY BE A BIT GUSTY FOR A
LITTLE WHILE THIS EVENING AND EARLY TONIGHT AFTER THE STORMS PASS OUT
TO SEA.

ALL INTERESTS ON LAND AND SEA SHOULD PAY CLOSE ATTENTION TO THEIR
USUAL INFORMATION SOURCES IN CASE A WARNING IS ISSUED.  OF COURSE IF
THREATENING WEATHER APPROACHES...PERSONS IN THE OPEN SHOULD SEEK SAFE
SHELTER TO DECREASE THE DANGER DUE TO LIGHTNING AN>D STRONG WINDS.

DORR
Special weather statement, May 21, 3:04 PM EDT, 56 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE HARTFORD CT
 300 PM EDT SUN MAY 21 1989

 A LINE OF THUNDERSTORMS CONTAINING VERY HEAVY RAIN..LIGHTNING...STRONG
GUSTY WINDS AND POSSIBLE HAIL EXTENDED FROM NEAR NEW BRITAIN
CONNECTICUT SOUTHWEST 10 NORTH OF BRIDGEPORT CONNECTICUT. THE
THUNDERSTORMS WERE MOVING EAST AT 30 MILED AN HOUR.

IF YOU SEE THREATENING WEATHER...PLEASE TAKE SHELTER IMMEDIATELY.

WOODARD



Nearby

Severe Thunderstorm Warnings in Massachusetts, 1989Every 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.