Alert archive / Connecticut / Severe Thunderstorm Warnings in 1993
Severe Thunderstorm Warning 8, NWS Boston/Norton, MA
NWS Boston/Norton, MA issued this severe thunderstorm warning at Jun 21, 1993, 4:38 PM EDT for Northwest Hills Planning Region, Connecticut. It was in force for 52 min.
The area
The counties it named.
The facts
- Issued
- Jun 21, 1993, 4:38 PM EDT (20:38 UTC)
- Expired
- Jun 21, 1993, 5:30 PM EDT
- In force
- 52 min
- Issued by
- NWS Boston/Norton, MA
- Area
- Whole counties
The nearest sounding before it
Albany, NY (KALB), launched 12:00Z, 8.6 hours before the alert went out and 106 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
- 131 J/kg
- Mixed-layer CIN
- -109 J/kg
- Mixed-layer LCL
- 599 m above ground
- 0-6 km bulk shear
- 31 kt
- 0-1 km storm-relative helicity
- -2 m²/s²
- 0-3 km storm-relative helicity
- 54 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.1
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KBDL 212040 RRA SVRBDL CTC005-212130- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE HARTFORD CT 438 PM EDT MON JUN 21 1993 THE NATIONAL WEATHER SERVICE IN HARTFORD HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 530 PM EDT FOR PEOPLE IN THE FOLLOWING LOCATION... IN NORTHWEST CONNECTICUT ...LITCHFIELD COUNTY AT 440 PM...RADAR DETECTED A SEVERE THUNDERSTORM APPROACHING LITCHFIELD COUNTY CONNECTICUT. THIS THUNDERSTORM WILL AFFECT THE SHARON LAKEVILLE REGION BY 445 PM. THIS SEVERE THUNDERSTORM WAS MOVING EAST A 25 MPH AND WILL LIKELY AFFECT WINSTEAD BY 500 PM. IF THREATENING WEATHER APPROACHES YOU SHOULD GO TO A SAFE PLACE IMMEDIATELY AND ASK THE NEAREST LAW ENFORCEMENT AGENCY TO RELAY YOUR SEVERE WEATHER REPORTS TO THE LOCAL NATIONAL WEATHER SERVICE OFFICE.
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, Jun 21, 4:25 PM EDT, 13 minutes before
CTZALL-MAZ005-210400- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE HARTFORD CT 425 PM EDT MON JUN 21 1993 ...A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR ALL OF CONNECTICUT AND WESTERN MASSACHUSETTS UNTIL 10 PM EDT... ...A THUNDERSTORM WITH VERY HEAVY RAIN...GUSTY WINDS AND SMALL HAIL IN EASTERN NEW YORK WAS APPROACHING NORTHWEST CONNECTICUT... AT 425 PM...A STRENGTHENING THUNDERSTORM 5 MILES NORTHEAST OF POUGHKEEPSIE NEW YORK WAS TRACKING NORTHEAST AT 25 MILES AN HOUR. THIS THUNDERSTROM WILL REACH THE SHARON/LAKEVILLE REGION OF LITCHFIELD COUNTY CONNECTICUT BY 445 PM EDT. ELSEWHERE...THUNDERSTORMS WITH HEAVY RAIN WERE SCATTERED IN THE HUDSON RIVER VALLEY OF EASTERN NEW YORK STATE. THE SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR ALL OF CONNECTICUT AND WESTERN MASSACHUSETTS UNTIL 10 PM EDT. RESIDENTS OF SOUTHERN NEW ENGLAND SHOULD STAY TUNED FOR UPDATES ON THIS WEATHER SITUATION. BE PREPARED TO MOVE TO SHELTER IF THREATENING WEATHER APPROACHES. SEKELSKY
Special weather statement, Jun 21, 4:31 PM EDT, 7 minutes before
RIZ001-002-502-212300- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE PROVIDENCE RI 431 PM EDT MON JUN 21 1993 ...A SEVERE THUNDERSTORM WATCH HAS BEEN ISSUED UNTIL 1000 PM FOR NORTHERN AND WESTERN RHODE ISLAND... THE WATCH INCLUDES PROVIDENCE COUNTY...KENT COUNTY AND WASHINGTON COUNTY INCLUDING THE ADJACENT COASTAL WATERS OF KENT AND WASHINGTON COUNTIES. A SEVERE THUNDERSTORM WATCH MEANS THAT CONDITIONS ARE FAVORABLE FOR THE DEVELOPMENT OF SEVERE THUNDERSTORMS IN THE WATCH AREA. SEVERE THUNDERSTORMS CONTAIN DAMAGING WIND...LARGE HAIL AND DANGEROUS LIGHTNING. SHOWERS AND THUNDERSTORMS WERE MOVING ACROSS WESTERN MASSACHUSETTS AND CONNECTICUT AT 420 PM...WITH SEVERE THUNDERSTORMS AFFECTING PARTS OF CENTRAL AND EASTERN NEW YORK. THESE STORMS MAY BEGIN TO AFFECT THE OCEAN STATTE EARLY THIS EVENING. ALL RHODE ISLANDERS SHOULD STAY ALERT AND BE ON THE LOOKOUT FOR THREATNING WEATHER. BE PREPARED TO HEAD INDOORS IF THUNDERSTORMS APPROACH. STAY TUNED TO NOAA WEATHER RADIO FOR THE LATEST STSTEMENTS AND POSSIBLE WARNINGS. CADIMA
Special weather statement, Jun 21, 4:31 PM EDT, 7 minutes before
RIZ001-002-502-212300- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE PROVIDENCE RI 431 PM EDT MON JUN 21 1993 ...A SEVERE THUNDERSTORM WATCH HAS BEEN ISSUED UNTIL 1000 PM FOR NORTHERN AND WESTERN RHODE ISLAND... THE WATCH INCLUDES PROVIDENCE COUNTY...KENT COUNTY AND WASHINGTON COUNTY INCLUDING THE ADJACENT COASTAL WATERS OF KENT AND WASHINGTON COUNTIES. A SEVERE THUNDERSTORM WATCH MEANS THAT CONDITIONS ARE FAVORABLE FOR THE DEVELOPMENT OF SEVERE THUNDERSTORMS IN THE WATCH AREA. SEVERE THUNDERSTORMS CONTAIN DAMAGING WIND...LARGE HAIL AND DANGEROUS LIGHTNING. SHOWERS AND THUNDERSTORMS WERE MOVING ACROSS WESTERN MASSACHUSETTS AND CONNECTICUT AT 420 PM...WITH SEVERE THUNDERSTORMS AFFECTING PARTS OF CENTRAL AND EASTERN NEW YORK. THESE STORMS MAY BEGIN TO AFFECT THE OCEAN STATTE EARLY THIS EVENING. ALL RHODE ISLANDERS SHOULD STAY ALERT AND BE ON THE LOOKOUT FOR THREATNING WEATHER. BE PREPARED TO HEAD INDOORS IF THUNDERSTORMS APPROACH. STAY TUNED TO NOAA WEATHER RADIO FOR THE LATEST STSTEMENTS AND POSSIBLE WARNINGS. CADIMA
Special weather statement, Jun 21, 4:32 PM EDT, 6 minutes before
CTZALL-MAZ005-210400- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE HARTFORD CT 425 PM EDT MON JUN 21 1993 ...A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR ALL OF CONNECTICUT AND WESTERN MASSACHUSETTS UNTIL 10 PM EDT... ...A THUNDERSTORM WITH VERY HEAVY RAIN...GUSTY WINDS AND SMALL HAIL IN EASTERN NEW YORK WAS APPROACHING NORTHWEST CONNECTICUT... AT 425 PM...A STRENGTHENING THUNDERSTORM 5 MILES NORTHEAST OF POUGHKEEPSIE NEW YORK WAS TRACKING NORTHEAST AT 25 MILES AN HOUR. THIS THUNDERSTROM WILL REACH THE SHARON/LAKEVILLE REGION OF LITCHFIELD COUNTY CONNECTICUT BY 445 PM EDT. ELSEWHERE...THUNDERSTORMS WITH HEAVY RAIN WERE SCATTERED IN THE HUDSON RIVER VALLEY OF EASTERN NEW YORK STATE. THE SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR ALL OF CONNECTICUT AND WESTERN MASSACHUSETTS UNTIL 10 PM EDT. RESIDENTS OF SOUTHERN NEW ENGLAND SHOULD STAY TUNED FOR UPDATES ON THIS WEATHER SITUATION. BE PREPARED TO MOVE TO SHELTER IF THREATENING WEATHER APPROACHES. SEKELSKY
Special weather statement, Jun 21, 4:35 PM EDT, 3 minutes before
MAZALL-CTZALL-RIZALL-212300- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE BOSTON MA 435 PM EDT MON JUN 21 1993 ...SEVERE THUNDERSTORM WATCH NUMBER 471 IS IN EFFECT FOR VIRTUALLY ALL OF SOUTHERN NEW ENGLAND INCLUDING ALL OF CONNECTICUT... THE EXCEPTION IS THE EXTREME SOUTHEAST CORNER OF RHODE ISLAND... NEWPORT COUNTY...AND THE WATCH DOES NOT INCLUDE THE SOUTHEAST MASSACHUSETTS COUNTIES OF PLYMOUTH...BARNSTABLE...DUKES AND NANTUCKET. RADAR AT 435 PM SHOWED MOST OF THE THUNDERSTORMS IN EASTERN NEW YORK STATE WITH A STRONG STORM JUST ABOUT READY TO ENTER LITCHFIELD COUNTY OF NORTHWEST CONNECTICUT BETWEEN SHARON AND FLANDERS...WHICH IS ROUGHLY 40 MILES WEST OF HARTFORD. STORMS WERE MOVING EAST TO NORTHEAST AT 30 TO 35 MILES AN HOUR. THE ALBANY...BRIDGEPORT...HARTFORD...WORCESTER AND BOSTON OFFICES WILL BE ISSUING FURTHER STATEMENTS TRACKING THUNDERSTORMS AND POTENTIAL DAMAGING WIND AS THE SHOWERS AND THUNDERSTORMS MOVE THROUGH PORTIONS OF SOUTHERN NEW ENGLAND EARLY TONIGHT. IF A WARNING ISSUED...SEEK SHELTER IN A STURDY BUILDING...PREFERABLY IN AN INTERIOR HALLWAY OR BENEATH A TABLE OR UNDER A STAIR WELL. MOBILE HOMES ARE ONE OF THE MOST DANGEROUS INDOOR SHELTERS IN DAMAGING WIND STORMS AND SHOULD BE AVOIDED OR EVACUATED IF A WARNING IS ISSUED FOR YOUR LOCATION. DRAG
Special weather statement, Jun 21, 4:36 PM EDT, 2 minutes before
MAZALL-CTZALL-RIZALL-212300- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE BOSTON MA 435 PM EDT MON JUN 21 1993 ...SEVERE THUNDERSTORM WATCH NUMBER 471 IS IN EFFECT FOR VIRTUALLY ALL OF SOUTHERN NEW ENGLAND INCLUDING ALL OF CONNECTICUT... THE EXCEPTION IS THE EXTREME SOUTHEAST CORNER OF RHODE ISLAND... NEWPORT COUNTY...AND THE WATCH DOES NOT INCLUDE THE SOUTHEAST MASSACHUSETTS COUNTIES OF PLYMOUTH...BARNSTABLE...DUKES AND NANTUCKET. RADAR AT 435 PM SHOWED MOST OF THE THUNDERSTORMS IN EASTERN NEW YORK STATE WITH A STRONG STORM JUST ABOUT READY TO ENTER LITCHFIELD COUNTY OF NORTHWEST CONNECTICUT BETWEEN SHARON AND FLANDERS...WHICH IS ROUGHLY 40 MILES WEST OF HARTFORD. STORMS WERE MOVING EAST TO NORTHEAST AT 30 TO 35 MILES AN HOUR. THE ALBANY...BRIDGEPORT...HARTFORD...WORCESTER AND BOSTON OFFICES WILL BE ISSUING FURTHER STATEMENTS TRACKING THUNDERSTORMS AND POTENTIAL DAMAGING WIND AS THE SHOWERS AND THUNDERSTORMS MOVE THROUGH PORTIONS OF SOUTHERN NEW ENGLAND EARLY TONIGHT. IF A WARNING ISSUED...SEEK SHELTER IN A STURDY BUILDING...PREFERABLY IN AN INTERIOR HALLWAY OR BENEATH A TABLE OR UNDER A STAIR WELL. MOBILE HOMES ARE ONE OF THE MOST DANGEROUS INDOOR SHELTERS IN DAMAGING WIND STORMS AND SHOULD BE AVOIDED OR EVACUATED IF A WARNING IS ISSUED FOR YOUR LOCATION. DRAG
The office that day
Everything else NWS Boston/Norton, MA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 21, 5:34 PM EDT | Severe Thunderstorm Warning | BOX | Capitol Planning Region, Northwest Hills Planning Region | 56 min |
| Jun 21, 6:13 PM EDT | Severe Thunderstorm Warning | BOX | Capitol Planning Region | 32 min |
| Jun 21, 6:20 PM EDT | Severe Thunderstorm Warning | BOX | Northwest Hills Planning Region | 55 min |
| Jun 21, 6:37 PM EDT | Severe Thunderstorm Warning | BOX | 53 min | |
| Jun 21, 6:53 PM EDT | Severe Thunderstorm Warning | BOX | Capitol Planning Region | 37 min |
| Jun 21, 7:23 PM EDT | Severe Thunderstorm Warning | BOX | 52 min |
Nearby
Severe Thunderstorm Warnings in Connecticut, 1993Every severe thunderstorm warning in 1993
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.