Alert archive / Connecticut / Severe Thunderstorm Warnings in 1993
Severe Thunderstorm Warning 13, NWS Boston/Norton, MA
NWS Boston/Norton, MA issued this severe thunderstorm warning at Jun 21, 1993, 6:53 PM EDT for Capitol Planning Region, Connecticut. It was in force for 37 min.
The area
The counties it named.
The facts
- Issued
- Jun 21, 1993, 6:53 PM EDT (22:53 UTC)
- Expired
- Jun 21, 1993, 7:30 PM EDT
- In force
- 37 min
- Issued by
- NWS Boston/Norton, MA
- Area
- Whole counties
County Capitol Planning Region, CT
The nearest sounding before it
Albany, NY (KALB), launched 12:00Z, 10.9 hours before the alert went out and 142 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 WUUS1 KBDL 212254 RRA SVRBDL CTC003-212330- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE HARTFORD CT ISSUED BY BOSTON MA 653 PM EDT MON JUN 21 1993 THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 730 PM EDT FOR PEOPLE IN THE FOLLOWING LOCATION... IN NORTH CENTRAL CONNECTICUT ...HARTFORD COUNTY POTENTIALLY SEVERE THUNDERSTORMS WERE RACING EASTWARD ACROSS NORTHERN HARTFORD COUNTY. DAMAGING WINDS MAY OCCUR FROM HARTFORD NORTH THROUGH WINDSOR LOCKS AROUND 700PM OR 715PM. 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, Jun 21, 6:30 PM EDT, 23 minutes before
MAZ004-005-212330- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE WORCESTER MA 630 PM EDT MON JUN 21 1993 ...STRONG THUNDERSTORMS WITH HAIL...GUSTY WINDS AND HEAVY DOWNPOURS WERE OCCURRING IN WESTERN MASSACHUSETTS...WESTERN CONNECTICUT AND THE HUDSON VALLEY OF NEW YORK STATE... AT 630 PM RADAR SHOWED A LINE OF SHOWERS AND THUNDERSTORMS EXTENDING FROM GLENS FALLS NEW YORK SOUTH TO NEW YORK CITY. SOME OF THESE STORMS HAVE ALREADY ENTERED WESTERN CONNECTICUT AND HAVE DOWNED TREES AND DEPOSITED GOLF BALL SIZE HAIL IN GRANDBY CONNECTICUT. THESE STORMS ARE MOVING EAST AT 35 MPH AND WILL BE IN CENTRAL MASSACHUSETTS BETWEEN 730 AND 830 PM. STAY TUNED TO NOAA WEATHER RADIO AND YOUR LOCAL TV AND RADIO STATIONS FOR FURTHER STATEMENTS AND POSSIBLE WARNINGS. HOLMES
Special weather statement, Jun 21, 6:33 PM EDT, 20 minutes before
MAZ004-005-212330- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE WORCESTER MA 630 PM EDT MON JUN 21 1993 ...STRONG THUNDERSTORMS WITH HAIL...GUSTY WINDS AND HEAVY DOWNPOURS WERE OCCURRING IN WESTERN MASSACHUSETTS...WESTERN CONNECTICUT AND THE HUDSON VALLEY OF NEW YORK STATE... AT 630 PM RADAR SHOWED A LINE OF SHOWERS AND THUNDERSTORMS EXTENDING FROM GLENS FALLS NEW YORK SOUTH TO NEW YORK CITY. SOME OF THESE STORMS HAVE ALREADY ENTERED WESTERN CONNECTICUT AND HAVE DOWNED TREES AND DEPOSITED GOLF BALL SIZE HAIL IN GRANDBY CONNECTICUT. THESE STORMS ARE MOVING EAST AT 35 MPH AND WILL BE IN CENTRAL MASSACHUSETTS BETWEEN 730 AND 830 PM. STAY TUNED TO NOAA WEATHER RADIO AND YOUR LOCAL TV AND RADIO STATIONS FOR FURTHER STATEMENTS AND POSSIBLE WARNINGS. HOLMES
Special weather statement, Jun 21, 6:33 PM EDT, 20 minutes before
MAZALL-CTZALL-RIZALL-220000- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE BOSTON MA 633 PM EDT MON JUN 21 1993 ...A SEVERE THUNDERSTORM WATCH CONTINUED IN EFFECT FOR ALL OF SOUTHERN NEW ENGLAND WITH THE EXCEPTION OF SOUTHEAST MASSACHUSETTS AND EXTREME SOUTHEAST RHODE ISLAND... RADAR AT 625 PM SHOWED SHOWERS OVER CENTRAL MASSACHUSETTS NEAR WORCESTER AND BETWEEN LOWELL AND BURLINGTON IN NORTHEAST MASSACHUSETTS. SEVERE THUNDERSTORMS WERE IN THE NORTHERN CONNECTICUT COUNTIES OF HARTFORD AND LITCHFIELD. THE NATIONAL WEATHER SERVICE AT BRADLEY FIELD CONNECTICUT REPORTED 3/4 INCH HAIL AT 625 PM. THERE HAVE BEEN MANY REPORTS OF TREES KNOCKED DOWN OR 60 MPH WINDS FROM SCRANTON PENNSYLVANIA TO THE LOWER HUDSON VALLEY OF NEW YORK SOUTH OF ALBANY... WITH AT LEAST 4 REPORTS OF DAMAGING WIND OR LARGE HAIL IN NORTHWEST CONNECTICUT LATE TODAY. THUNDERSTORMS ARE NOT EXPECTED IN EASTERN MASSACHUSETTS BEFORE 730 PM. IF A WARNING IS ISSUED...SEEK SHELTER IN A STURDY BUILDING...PREFERABLY IN AN INTERIOR HALLWAY OR BENEATH A TABLE OR UNDER A STAIRWAY. 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, 6:35 PM EDT, 18 minutes before
MAZALL-CTZALL-RIZALL-220000- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE BOSTON MA 633 PM EDT MON JUN 21 1993 ...A SEVERE THUNDERSTORM WATCH CONTINUED IN EFFECT FOR ALL OF SOUTHERN NEW ENGLAND WITH THE EXCEPTION OF SOUTHEAST MASSACHUSETTS AND EXTREME SOUTHEAST RHODE ISLAND... RADAR AT 625 PM SHOWED SHOWERS OVER CENTRAL MASSACHUSETTS NEAR WORCESTER AND BETWEEN LOWELL AND BURLINGTON IN NORTHEAST MASSACHUSETTS. SEVERE THUNDERSTORMS WERE IN THE NORTHERN CONNECTICUT COUNTIES OF HARTFORD AND LITCHFIELD. THE NATIONAL WEATHER SERVICE AT BRADLEY FIELD CONNECTICUT REPORTED 3/4 INCH HAIL AT 625 PM. THERE HAVE BEEN MANY REPORTS OF TREES KNOCKED DOWN OR 60 MPH WINDS FROM SCRANTON PENNSYLVANIA TO THE LOWER HUDSON VALLEY OF NEW YORK SOUTH OF ALBANY... WITH AT LEAST 4 REPORTS OF DAMAGING WIND OR LARGE HAIL IN NORTHWEST CONNECTICUT LATE TODAY. THUNDERSTORMS ARE NOT EXPECTED IN EASTERN MASSACHUSETTS BEFORE 730 PM. IF A WARNING IS ISSUED...SEEK SHELTER IN A STURDY BUILDING...PREFERABLY IN AN INTERIOR HALLWAY OR BENEATH A TABLE OR UNDER A STAIRWAY. 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, 6:40 PM EDT, 13 minutes before
RIZ001-002-502-220030- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE PROVIDENCE RI 640 PM EDT MON JUN 21 1993 ...A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR NORTHERN AND WESTERN RHODE ISLAND UNTIL 1000 PM. THE WATCH INCLUDES PROVIDENCE COUNTY...KENT COUNTY AND WASHINGTON COUNTY INCLUDING THE ADJACENT COASTAL WATERS OF KENT AND WASHINGTON COUNTIES. A SEVERE THUNDERSTORM WITH DAMAGING WIND AND LARGE HAIL WAS MOVING ACROSS NORTH CENTRAL CONNECTICUT AT 630 PM. THIS STORM HAS PRODUCED GOLFBALL SIZE HAIL IN GRANBY AND HAS KNOCKED DOWN LARGE TREE LIMBS. THIS STORM MAY BEGIN TO AFFECT NORTHWEST RHODE ISLAND AROUND OR AFTER 730 PM. IF YOU ARE OUTDOORS ACROSS NORTHWEST RHODE ISLAND...BE SURE TO KEEP AN EYE ON THE SKY. MOVE INSIDE TO A SAFE SHELTER AT THE FIRST SIGN OF THREATNING WEATHER. FURTHER WEST...A LINE OF SEVERE THUNDERSTORMS WAS MOVING INTO THE BERKSHIRES AND NORTHWEST HILLS OF CONNECTICUT. THIS ACTIVITY WILL AFFECT RHODE ISLAND AFTER 830 PM IF IT HOLDS TOGETHER. STAY TUNED TO NOAA WEATHER RADIO FOR THE LATEST STATEMENTS. IF SEVERE WEATHER IS REPORTED OR BECOMES IMMINENT FOR RHODE ISLAND WARNINGS WILL BE ISSUED. CADIMA
Special weather statement, Jun 21, 6:41 PM EDT, 12 minutes before
RIZ001-002-502-220030- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE PROVIDENCE RI 640 PM EDT MON JUN 21 1993 ...A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR NORTHERN AND WESTERN RHODE ISLAND UNTIL 1000 PM. THE WATCH INCLUDES PROVIDENCE COUNTY...KENT COUNTY AND WASHINGTON COUNTY INCLUDING THE ADJACENT COASTAL WATERS OF KENT AND WASHINGTON COUNTIES. A SEVERE THUNDERSTORM WITH DAMAGING WIND AND LARGE HAIL WAS MOVING ACROSS NORTH CENTRAL CONNECTICUT AT 630 PM. THIS STORM HAS PRODUCED GOLFBALL SIZE HAIL IN GRANBY AND HAS KNOCKED DOWN LARGE TREE LIMBS. THIS STORM MAY BEGIN TO AFFECT NORTHWEST RHODE ISLAND AROUND OR AFTER 730 PM. IF YOU ARE OUTDOORS ACROSS NORTHWEST RHODE ISLAND...BE SURE TO KEEP AN EYE ON THE SKY. MOVE INSIDE TO A SAFE SHELTER AT THE FIRST SIGN OF THREATNING WEATHER. FURTHER WEST...A LINE OF SEVERE THUNDERSTORMS WAS MOVING INTO THE BERKSHIRES AND NORTHWEST HILLS OF CONNECTICUT. THIS ACTIVITY WILL AFFECT RHODE ISLAND AFTER 830 PM IF IT HOLDS TOGETHER. STAY TUNED TO NOAA WEATHER RADIO FOR THE LATEST STATEMENTS. IF SEVERE WEATHER IS REPORTED OR BECOMES IMMINENT FOR RHODE ISLAND WARNINGS WILL BE ISSUED. CADIMA
The office that day
Everything else NWS Boston/Norton, MA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 21, 4:38 PM EDT | Severe Thunderstorm Warning | BOX | Northwest Hills Planning Region | 52 min |
| 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, 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.