Alert archive / Connecticut / Severe Thunderstorm Warnings in 1989
Severe Thunderstorm Warning 40, NWS Boston/Norton, MA
NWS Boston/Norton, MA issued this severe thunderstorm warning at Nov 20, 1989, 10:59 PM EST for Northeastern Connecticut Planning Region, Connecticut. It was in force for 46 min.
The area
The counties it named.
The facts
- Issued
- Nov 20, 1989, 10:59 PM EST (03:59 UTC)
- Expired
- Nov 20, 1989, 11:45 PM EST
- In force
- 46 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 00:00Z, 4.0 hours before the alert went out and 167 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 565 m above ground
- 0-6 km bulk shear
- 52 kt
- 0-1 km storm-relative helicity
- 124 m²/s²
- 0-3 km storm-relative helicity
- 148 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.6
The text
As transmitted, in the capitals the NWS used until 2016.
000
TTAA00 KBDL 210359
SVRBDL
CTC015-210445-
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE HARTFORD CT
1059 PM EST MON NOV 20 1989
THE NATIONAL WEATHER SERVICE IN HARTFORD HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 1145 PM EST
FOR PEOPLE IN THE FOLLOWING COUNTY...
IN CONNECTICUT
...WINDHAM
AN AREA OF THUNDERSTORMS...SOME SEVERE...JUST ENTERING WINDHAM COUNTY
ARE MOVING TO THE EAST AT 50 TO 60 MPH. THESE STORMS HAVE PRODUCED
WIND GUSTS TO 60 MPH. THET WILL MOVE INTO RHODE ISLAND DURING THE NEXT
45 MINUTES.
SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 55
MPH...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN.
FOR YOUR PROTECTION 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
Special weather statement, Nov 20, 8:31 PM EST, 2 hours 28 minutes before
SPECIAL WEATHER STATEMENT FOR RHODE ISLAND...CORRECTION... NATIONAL WEATHER SERVICE PROVIDENCE RI 830 PM EST MON NOV 20 1989 ...A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR ALL OF RHODE ISLAND... A SEVERE THUNDERSTORM WATCH IS IN EFFECT UNTIL 2 AM EST FOR ALL OF RHODE ISLAND. THUNDERSTORMS HAVE RAPIDLY DEVELOPED AHEAD OF A VIGOROUS FAST MOVING COLD FRONT CURRENTLY MOVING ACROSS CENTRAL NEW YORK AND PENNSYLVANIA. THESE STORMS HAVE BEEN ACCOMPANIED BY STRONG GUSTY WINDS IN EXCESS OF 65 MPH. RHODE ISLANDERS SHOULD STAY TUNED TO LOCAL RADIO AND TELEVISION STATIONS OR TO NOAA WEATHER RADIO FOR LATER STATEMENTS AND POSSIBLE WARNINGS. REMEMBER...A SEVER THUNDERSTORM WATCH MEANS THAT CONDITIONS ARE FAVORABLE FOR SEVERE THUNDERSTORM DEVELOPMENT. RHODE ISLANDERS SHOULD BE ON THE LOOK OUT FOR THREATENING WEATHER CONDITIONS AND BE READY TO SEEK SAFE SHELTER IMMEDIATELY SHOULD THREATENING WEATHER APPROACH. THE NEXT STATEMENT WILL BE ISSUED AROUND 1030PM...SOONER IF CONDITIONS WARRANT. VALLEE
Special weather statement, Nov 20, 8:59 PM EST, 2 hours before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE HARTFORD CT 850 PM EST THU NOV 16 1989 ...A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR CONNECTICUT UNTIL 200 AM EST... A RAPIDLY MOVING LINE OF SHOWERS AND THUNDERSTORMS OVER SOUTHEASTERN NEW YORK STATE AT 845 PM ARE MOVING EAST TO SOUTHEAST AT 50 TO 60 MPH. DAMAGING NORTHWEST WINDS ARE ASSOCIATED WITH THESE THUNDERSTORMS. THEY LINE WILL BE ENTERING NORTHWEST CONNECTICUT SHORTLY AFTER 900 PM WILL PROBABLY CLEAR THE STATE BY MIDNIGHT. MUCH COLDER AIR WITH A PERIOD OF SNOW OR FLURRIES WILL FOLLOW. REPORTS OF TREES DOWN, POWER OUTAGES AND OTHER WIND DAMAGE HAVE BEEN RECENTLY REPORTED IN NEW YORK STATE. PERSONS IN CONNECTICUT SHOULD BE PREPARED FOR A PERIOD OF ACTIVE WEATHER LATER THIS EVENING WITH POSSIBLE WIND GUSTS IN EXCESS OF 50 TO 60 MPH. STAY TUNED TO NOAA WEATHER RADIO OR LOCAL TELEVISION FOR FURTHER STATEMENTS OR ANY WARNINGS ISSUED BY THE NATIONAL WEATHER SERVICE. BUDD
Special weather statement, Nov 20, 9:10 PM EST, 1 hour 49 minutes before
SPECIAL WEATHER STATEMENT FOR CONNECTICUT...CORRECTION NATIONAL WEATHER SERVICE HARTFORD CT 850 PM EST MON NOV 20 1989 ...A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR CONNECTICUT UNTIL 200 AM EST... A RAPIDLY MOVING LINE OF SHOWERS AND THUNDERSTORMS OVER SOUTHEASTERN NEW YORK STATE AT 845 PM ARE MOVING EAST TO SOUTHEAST AT 50 TO 60 MPH. DAMAGING NORTHWEST WINDS ARE ASSOCIATED WITH THESE THUNDERSTORMS. THE LINE WILL BE ENTERING NORTHWEST CONNECTICUT SHORTLY AFTER 900 PM WILL PROBABLY CLEAR THE STATE BY MIDNIGHT. MUCH COLDER AIR WITH A PERIOD OF SNOW OR FLURRIES WILL FOLLOW. REPORTS OF TREES DOWN, POWER OUTAGES AND OTHER WIND DAMAGE HAVE BEEN RECENTLY REPORTED IN NEW YORK STATE. PERSONS IN CONNECTICUT SHOULD BE PREPARED FOR A PERIOD OF ACTIVE WEATHER LATER THIS EVENING WITH POSSIBLE WIND GUSTS IN EXCESS OF 50 TO 60 MPH. STAY TUNED TO NOAA WEATHER RADIO OR LOCAL TELEVISION FOR FURTHER STATEMENTS OR ANY WARNINGS ISSUED BY THE NATIONAL WEATHER SERVICE. BUDD
Special weather statement, Nov 20, 9:31 PM EST, 1 hour 28 minutes before
SPECIAL WEATHER STATEMENT FOR SOUTHERN NEW ENGLAND NATIONAL WEATHER SERVICE BOSTON MA 915 PM EST MON NOV 20 1989 ...SEVERE THUNDERSTORM WATCH FOR MUCH OF MASSACHUSETTS UNTIL 2 AM EST... SEVERE THUNDERSTORM WATCH 767 HAS BEEN ISSUED FOR ALL OF MASSSACHUSETTS AND THE ADJACENT COASTAL WATERS..EXCEPT CAPE COD AND THE ISLANDS. AT 9 PM EST A LINE OF VERY HEAVY THUNDERSTORMS..WITH STRONG GUSTY WINDS.. EXTENDED ACROSS SOUTHEASTERN NEW YORK TO EASTERN PENNSYLVANIA. THIS SQUALL LINE WAS MOVING RAPIDLY SOUTHEASTWARD AROUND 60 MPH. STRONG DAMAGING WINDS HAVE BEEN ASSOCIATED WITH THE PASSAGE OF THIS LINE OF THUNDERSTORMS IN SOME LOCATIONS IN NEW YORK AND PENNSYLVANIA. THE LINE WILL BE MOVING INTO WESTERN MASSACHUSETTS AND WESTERN CONNECTICUT DURING THE NEXT SEVERAL HOURS..AND ACROSS THE REGION BY 2 AM. DAMAGING WINDS..LARGE HAIL..FREQUENT LIGHTNING..AND HEAVY DOWNPOURS MAY ACCOMPANY THE PASSAGE OF THE SQUALL LINE. THE SQUALL LINE IS IN ADVANCE OF A COLD FRONT WHICH WILL MOVE OFF THE NEW ENGLAND COAST OVERNIGHT. THIS COLD FRONT WILL USHER IN MUCH COLDER AIR..ALONG WITH GALE TO STORM FORCE WINDS. RAIN SHOWERS WILL TURN TO SNOW SHOWERS..WITH ACCUMULATIONS OF 1 TO 3 INCHES IN SOME LOCATIONS. A SNOW ADVISORY REMAINS IN EFFECT FOR MUCH OF INTERIOR MASSACHUSETTS AND THE EAST COAST..EXCLUDING THE SOUTHEAST AND CAPE COD AREAS. NORTHWEST WINDS WILL BE INCREASING OVERNIGHT AND WILL GUST 40-60 MPH OVERNIGHT AND TUESDAY. ALL PE5RSONS SHOULD MONITOR RADIO..TELEVISION..AND NOAA WEATHER RADIO FOR FURTHER INFORMATION ON THIS DEVELOPING WEATHER SITUATION. RMK
Special weather statement, Nov 20, 10:09 PM EST, 50 minutes before
SPECIAL WEATHER STATEMENT FOR RHODE ISLAND NATIONAL WEATHER SERVICE PROVIDENCE RI 1000 PM EST MON NOV 20 1989 ...A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR ALL OF RHODE ISLAND... A SEVERE THUNDERSTORM WATCH IS IN EFFECT UNTIL 2 AM EST FOR ALL OF RHODE ISLAND. THUNDERSTORMS CONTINUE TO RAPIDLY INTENSIFY IN ADVANCE OF A VIGOROUS FAST MOVING COLD FRONT NOW ENTERING EASTERN NEW YORK. THESE STORMS HAVE CAUSED A CONSIDERABLE AMOUNT OF WIND DAMAGE AS THEY MOVED ACROSS NORTHEASTERN PENNSYLVANIA AND EASTERN NEW YORK. WIND GUSTS TO 76 MPH OCCURRED IN THE NEW YORK CITY AREA. THE LEADING EDGE OF THE THUNDERSTORMS WAS MOVING INTO WESTERN CONNECTITCUT AT 945PM. THESE STORMS ARE MOVING EAST NEAR 55 MPH AND WILL BEGIN TO AFFECT THE OCEAN STATE WITHIN THE NEXT TWO HOURS. RHODE ISLANDERS ARE URGED TO KEEP A SHARP LOOKOUT FOR THREATENING WEATHER...AND TO BE READY TO SEEK SAFE SHELTER IMMEDIATELY SHOULD THREATENING WEATHER APROACH. > STAY TUNEbD TO LOCAL RADIO...TELEVISION...AND NOAA WEATHER RADIO FOR LATER STATEMENTS AND POSSIBLE WARNINGS. VALLEE
Special weather statement, Nov 20, 10:49 PM EST, 10 minutes before
SPECIAL WEATHER STATEMENT AND MARINE STATEMENT FOR RHODE ISLAND NATIONAL WEATHER SERVICE PROVIDENCE RI...CORRECTED FOR MARINE 1000 PM EST MON NOV 20 1989 INTERESTS... ...A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR ALL OF RHODE ISLAND NARRAGANSETT BAY AND THE SOUTH SHORE COASTAL WATERS... A SEVERE THUNDERSTORM WATCH IS IN EFFECT UNTIL 2 AM EST FOR ALL OF RHODE ISLAND. THUNDERSTORMS CONTINUE TO RAPIDLY INTENSIFY IN ADVANCE OF A VIGOROUS FAST MOVING COLD FRONT NOW ENTERING EASTERN NEW YORK. THESE STORMS HAVE CAUSED A CONSIDERABLE AMOUNT OF WIND DAMAGE AS THEY MOVED ACROSS NORTHEASTERN PENNSYLVANIA AND EASTERN NEW YORK. WIND GUSTS TO 76 MPH OCCURRED IN THE NEW YORK CITY AREA. THE LEADING EDGE OF THE THUNDERSTORMS WAS MOVING INTO WESTERN CONNECTITCUT AT 945PM. THESE STORMS ARE MOVING EAST NEAR 55 MPH AND WILL BEGIN TO AFFECT THE OCEAN STATE WITHIN THE NEXT TWO HOURS. RHODE ISLANDERS ARE URGED TO KEEP A SHARP LOOKOUT FOR THREATENING WEATHER...AND TO BE READY TO SEEK SAFE SHELTER IMMEDIATELY SHOULD THREATENING WEATHER APROACH. > MARINE INTERESTS SHOULD STAY ALERT FOR SEVERE WEATHER CONDITIONS ON THE BAY AND COASTAL WATERS. BOATERS SHOULD HEAD FOR SAFE HAVEN NOW...REPEAT...NOW. STAY TUNED TO LOCAL RADIO...TELEVISION...AND NOAA WEATHER RADIO FOR LATER STATEMENTS AND POSSIBLE WARNINGS. VALLEE
The office that day
Everything else NWS Boston/Norton, MA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Nov 20, 9:45 PM EST | Severe Thunderstorm Warning | BOX | Capitol Planning Region | 60 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.