Alert archive / Connecticut / Severe Thunderstorm Warnings in 1989
Severe Thunderstorm Warning 34, NWS Boston/Norton, MA
NWS Boston/Norton, MA issued this severe thunderstorm warning at Aug 21, 1989, 4:21 PM EDT for Southeastern Connecticut Planning Region, Connecticut. It was in force for 54 min.
The area
The counties it named.
The facts
- Issued
- Aug 21, 1989, 4:21 PM EDT (20:21 UTC)
- Expired
- Aug 21, 1989, 5:15 PM EDT
- In force
- 54 min
- Issued by
- NWS Boston/Norton, MA
- Area
- Whole counties
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, 8.4 hours before the alert went out and 178 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.
- Mixed-layer CAPE
- 841 J/kg
- Mixed-layer CIN
- -65 J/kg
- Mixed-layer LCL
- 869 m above ground
- 0-6 km bulk shear
- 36 kt
- 0-1 km storm-relative helicity
- 130 m²/s²
- 0-3 km storm-relative helicity
- 124 m²/s²
- Significant tornado parameter
- 0.3
- Supercell composite
- 2.7
The text
As transmitted, in the capitals the NWS used until 2016.
000
TTAA00 KBDL 212022
SVRBDL
CTC011-212115-
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE HARTFORD CT
421 PM EDT MON AUG 21 1989
THE NATIONAL WEATHER SERVICE IN HARTFORD HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 515 PM EDT
FOR PEOPLE IN THE FOLLOWING COUNTY...
IN CONNECTICUT
...NEW LONDON
A VERY STRONG THUNDERSTORM LOCATED SOUTH OF NORWICH WILL LIKELY HAVE
WIND GUSTS IN EXCESS OF 50 MPH AND MAY HAVE LARGE HAIL. THIS
THUNDERSTORM CLUSTER HAS HAD A HISTORY OF HIGH WINDS AND HAIL AS IT
MOVED THROUGH THE HARTFORD AREA AFTER 300 PM. RESIDENTS OF NEW LONDON
COUNTY SHOULD BE PREPARED FOR THE POSSIBILITY OF HIGH WIND
GUSTS...EXCESSIVE LIGHTNING AND HAIL AND HEAVY DOWNPOURS AS THE STORM
MOVES EAST-SOUTHEAST AT 30 MPH.
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 LIGHTNING. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER...
PREFERABLY INSIDE A STRONG BUILDING BUT STAY AWAY FROM WINDOWS.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 21, 1:55 PM EDT, 2 hours 26 minutes before
SPECIAL WEATHER STATEMENT FOR CONNECTICUT NATIONAL WEATHER SERVICE BOSTON MA 155 PM EDT MON AUG 21 1989 ...A SEVERE THUNDERSTORM WATCH IN EFFECT UNTIL 700 PM EDT... A FEW SEVERE THUNDERSTORMS WITH LARGE HAIL AND DAMAGING WINDS ARE POSSIBLE THIS AFTERNOON. AT 130 PM EDT...NATIONAL WEATHER SERVICE RADAR AT BRADLEY INDICATED A CLUSTER OF THUNDERSTORMS IN SOUTHERN COLUMBIA COUNTY OF NEW YORK STATE MOVING EAST-SOUTHEAST AT 40 MPH. RESIDENTS IN LITCHFIELD COUNTY..ESPECIALLY IN THE TACONIC..TWIN LAKES.. AND CANAAN AREAS CAN EXPECT TO SEE THSE THUNDERSTORMS MOVE INTO THE AREA WITHIN THE NEXT HOUR. IF YOU SEE THREATENING WEATHER APPROACH..TAKE SHELTER AND LISTEN TO YOUR RADIO..TV..OR NOAA WEA3THER RADIO FOR FURTHER INFORMATION. BTS
Local storm report, Aug 21, 3:17 PM EDT, 1 hour 4 minutes before
STORM REPORT
NATIONAL WEATHER SERVICE WINDSOR LOCKS, CT
314 PM EDT MON AUG 21 1989
TIME EVENT
307 PM EDT ....SPOTTER REPORT...HIGH WINDS IN AVON, CT SUFFICIENT
TO MOVE LARGE TREES AROUND.
308 PM EDT....SPOTTER REPORT...WEST HARTFORD...NICKEL SIZE HAIL.
310 PM EDT...SPOTTER REPORT...RTE. 44...HALFWAY UP AVON MTN.
3/4 INCH HAIL.
BBLocal storm report, Aug 21, 3:21 PM EDT, 1 hour before
STORM REPORT...ADDITIONAL REPORT
NATIONAL WEATHER SERVICE WINDSOR LOCKS, CT
318 PM EDT MON AUG 21 1989
TIME EVENT
307 PM EDT ....SPOTTER REPORT...HIGH WINDS IN AVON, CT SUFFICIENT
TO MOVE LARGE TREES AROUND.
308 PM EDT....SPOTTER REPORT...WEST HARTFORD...NICKEL SIZE HAIL.
310 PM EDT...SPOTTER REPORT...RTE. 44...HALFWAY UP AVON MTN.
3/4 INCH HAIL.
317 PM EDT...REPORT FROM FORMER NWS EMPLOYEE...WIND GSTS TO 67 MPH
IN DOWNTOWN HARTFORD AT WTIC TV STUDIOS.
BBSpecial weather statement, Aug 21, 3:41 PM EDT, 40 minutes before
SPECIAL WEATHER STATEMENT FOR MASSACHUSETTS NATIONAL WEATHER SERVICE BOSTON MA 330 PM EDT MON AUG 21 1989 ...SCATTERED THUNDERSTORMS DEVELOPING ACROSS MASSACHUSETTS... AT 315 PM THUNDERSTORMS WERE DEVELOPING ACROSS THE STATE. THE STRONGEST ONES WERE LOCATED ALONG THE BORDER OF CONNECTICUT AND RHODE ISLAND. ONE WAS WEST OF FOXBORO...ANOTHER SOUTH OF BROCKTON AND ANOTHER ONE...NEAR ACTON WAS HEADING TOWARD CONCORD. THUNDERSTORMS WILL CONTINUE TO DEVELOP ACROSS THE STATE...MOSTLY IN THE SOUTHERN PART...AND MOVE TOWARD THE EAST SOUTHEAST AT ABOUT 30 MPH. VERY HEAVY RAIN...POSSIBLY HAIL AND STRONG GUSTY WINDS WILL ACCOMPANY SOME OF THE STORMS. IF YOU CAN...DELAY ANY OUTDOOR ACTIVITY TIL LATER TONIGHT...WHEN THE THUNDERSTORMS MOVE OUT TO SEA. THE HEAVY RAIN FROM SOME OF THE STORMS MAY CAUSE ROAD FLOODING...AND MOTORISTS SHOULD BE CAUTIOUS WHEN DRIVING...DO NOT ATTEMPT TO DRIVE OVER A FLOODED ROADWAY WHERE THE DEPTH OF WATER IS NOT OBVIOUS. STAY TUNED TO RADIO...TV...OR NOAA WEATHER RADIO FOR LATER FORECASTS AND STATEMENTS. BTS
Special weather statement, Aug 21, 3:58 PM EDT, 23 minutes before
SPECIAL WEATHER STATEMENT FOR RHODE ISLAND NATIONAL WEATHER SERVICE PROVIDENCE RI 355 PM EDT MON AUG 21 1989 AT 345 PM...WEATHER SERVICE RADAR INDICATED THUNDERSTORMS MOVING ACROSS NORTHERN RHODE ISLAND. THESE STORMS CONTAIN STRONG GUSTY WINDS AND VERY HEAVY RAIN WHICH HAS RESULTED IN FLOODING OF ROADWAYS AND AREAS OF POOR DRAINAGE. THESE STORMS WERE MOVING SLOWLY EAST AND WILL CONTINUE TO AFFECT THE NORTHERN PART OF THE STATE DURING THE NEXT TWO HOURS. ANTOHER AREA OF THUNDERSTORMS PRODUCING HEAVY RAIN...GUSTY WINDS AND VIVID LIGHTNING WERE MOVING ACROSS CENTRAL AND EASTERN CONNECTICUT. THESE STORMS WILL LIKELY BEGIN TO AFFECT WESTERN RHODE ISLAND WITHIN THE NEXT HOUR. PERSONS LIVING IN THE PATH OF THE THESE STORMS SHOULD REMAIN INDOORS UNTIL THE THREATENING WEATHER PASSES. VALLEE
Special weather statement, Aug 21, 4:00 PM EDT, 21 minutes before
SPECIAL WEATHER STATEMENT FOR CONNECTICUT NATIONAL WEATHER SERVICE BOSTON MA 350 PM EDT MON AUG 21 1989 ...A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT FOR ALL OF CONNECTICUT UNTIL 7 PM EDT... AT 350 PM EDT A LINE OF THUNDERSTORMS STRETCHES FROM NORTHERN RHODE ISLAND....JUST SOUTH OF HARTFORD...TO JUST SOUTH OF POUGHKEEPSIE NY. STRONG THUNDERSTORMS ARE LOCATED ALONG THIS LINE AND ALSO IN FAIRFIELD COUNTY. AT THIS TIME THE THUNDERSTORMS...WHICH ARE MOVING EAST TO SOUTHEAST AT 30 MPH DO NOT EXHIBIT SEVERE SIGNATURES...BUT SOME HAVE HAD A HISTORY OF SEVERE WEATHER AND THE POSSIBILITY OF ADDITIONAL HIGH WINDS OR LARGE HAIL EXISTS ESPECIALLY SOUTH OF THIS LINE. IF YOU SEE THREATENING WEATHER APPROACH..TAKE SHELTER AND PAY ATTENTION TO RADIO..TV..OR NOAA WEATHER RADIO FOR FURTHER INFORMATION. SEVERAL REPORTS OF 3/4 TO 1 INCH HAIL AND A WIND GUST TO 67 MPH WERE RECORDED BETWEEN 300 AND 330 PM IN THE GREATER HARTFORD AREA. BB
The office that day
Everything else NWS Boston/Norton, MA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 21, 2:02 PM EDT | Severe Thunderstorm Warning | BOX | Northwest Hills Planning Region | 58 min |
| Aug 21, 2:56 PM EDT | Severe Thunderstorm Warning | BOX | Capitol Planning Region | 49 min |
Nearby
Severe Thunderstorm Warnings in Connecticut, 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.