Alert archive / Massachusetts / Severe Thunderstorm Warnings in 1993
Severe Thunderstorm Warning 55, NWS Boston/Norton, MA
NWS Boston/Norton, MA issued this severe thunderstorm warning at Aug 4, 1993, 8:15 PM EDT for Essex County, Massachusetts. It was in force for 45 min.
The area
The counties it named.
The facts
- Issued
- Aug 4, 1993, 8:15 PM EDT (00:15 UTC)
- Expired
- Aug 4, 1993, 9:00 PM EDT
- In force
- 45 min
- Issued by
- NWS Boston/Norton, MA
- Area
- Whole counties
County Essex County, MA
The nearest sounding before it
Chatham, MA (KCHH), launched 00:00Z, 0.3 hours before the alert went out and 131 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
- 960 J/kg
- Mixed-layer CIN
- -24 J/kg
- Mixed-layer LCL
- 530 m above ground
- 0-6 km bulk shear
- 40 kt
- 0-1 km storm-relative helicity
- 59 m²/s²
- 0-3 km storm-relative helicity
- 70 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.8
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, Aug 4, 7:16 PM EDT, 59 minutes before
MAZALL-MAZ501-502-504-050100- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE BOSTON MA 713 PM EDT WED AUG 4 1993 ...A VERY STRONG THUNDERSTORM WAS AFFECTING BOSTONS NORTHWEST SUBURBS THIS EVENING AND A SPECIAL MARINE WARNING WAS IN EFFECT FROM CAPE ANN TO BOSTON HARBOR UNTIL 8 PM... PEABODY REPORTED A WIND GUST OF ABOUT 50 MPH AROUND 7 PM AND THERE HAVE BEEN SEVERAL REPORTS OF VERY HEAVY RAIN AND PEA SIZED HAIL IN THE STONEHAM... WAKEFIELD...WOBURN AREA OF BOSTONS NORTH AND NORTHWEST SUBURBS. STONEHAM HAD OVER HALF AN INCH OF RAIN IN 10 MINUTES. THERE WERE REPORTS OF NEARLY A DOZEN TREES DOWNED NEAR WOBURN CENTER AROUND 705 PM. RADAR AT 705 PM SHOWED THIS STRONG THUNDERSTORM DRIFTING EAST NORTHEAST TOWARD SALEM...SWAMPSCOTT...MARBLEHEAD AND LYNN. ALSO...SCATTERED SHOWERS AND THUNDERSTORMS WERE OCCURRING EAST NORTHEAST OF THIS BIG STORM TOWARD BEVERLY AND MANCHESTER. CONDITIONS STILL REMAIN FAVORABLE FOR THE DEVELOPMENT OF SHOWERS AND THUNDERSTORMS OVER NORTHEAST MASSACHUSETTS THIS EVENING. A STRONG WIND GUST AS WELL AS SMALL HAIL MAY ACCOMPANY THUNDERSTORMS IN PARTS BOSTONS NORTHERN AND WESTERN SUBURBS AND THE MERRIMACK VALLEY UNTIL ABOUT 8 PM. ALL INTERESTS SHOULD LISTEN FOR LATER STATEMENTS AND OR WARNINGS FROM THE BOSTON AND WORCESTER OFFICES OF THE NATIONAL WEATHER SERVICE. THE NEXT STATEMENT WILL PROBABLY BE ISSUED BETWEEN 730 AND 8 PM. DRAG
Local storm report, Aug 4, 7:37 PM EDT, 38 minutes before
LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BOSTON MA
737 PM EDT WED AUG 4 1993
TIME(EDT) LOCATION REPORT
703 PM WOBURN 6 TO 10 TREES DOWN NEAR TOWN CENTER
(MIDDLESEX CO) AND HOUSE CAUGHT FIRE FROM
LIGHTNING (RPTD BY POLICE)
644-710 PM WAKEFIELD AND STONEHAM SVRL RPRTS OF PEA SIZE HAIL
(SE MIDDLESEX CO) DIFFERENT PARTS OF THE CITY
719 PM PEABODY TREE BLOWN DOWN ACROSS RTE 114
(EST) (ESSEX CO)Local storm report, Aug 4, 7:38 PM EDT, 37 minutes before
LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BOSTON MA
737 PM EDT WED AUG 4 1993
TIME(EDT) LOCATION REPORT
703 PM WOBURN 6 TO 10 TREES DOWN NEAR TOWN CENTER
(MIDDLESEX CO) AND HOUSE CAUGHT FIRE FROM
LIGHTNING (RPTD BY POLICE)
644-710 PM WAKEFIELD AND STONEHAM SVRL RPRTS OF PEA SIZE HAIL
(SE MIDDLESEX CO) DIFFERENT PARTS OF THE CITY
719 PM PEABODY TREE BLOWN DOWN ACROSS RTE 114
(EST) (ESSEX CO)Special weather statement, Aug 4, 7:46 PM EDT, 29 minutes before
MAZ001-002-004-007-008-501-502-504-050200- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE BOSTON MA 746 PM EDT WED AUG 4 1993 ...A SEVERE THUNDERSTORM WARNING CONTINUED UNTIL 8 PM FOR SOUTHERN ESSEX COUNTY AND A SEVERE THUNDERSTORM WARNING WAS IN EFFECT UNTIL 830 PM IN SOUTHERN WORCESTER COUNTY... THERE HAVE BEEN SEVERAL REPORTS OF TREES AND LARGE BRANCHES DOWNED IN EASTERN MASSACHUSETTS BETWEEN 7 AND 740 PM AS STRONG THUNDERSTORMS MOVE THROUGH THE REGION. PEA SIZED HAIL HAS BEEN REPORTED FROM THE NORTHWEST TO NORTHEAST OF BOSTON. MARBLE SIZED HAIL WAS REPORTED IN STAFFORD SPRINGS OF NORTHEAST CONNECTICUT AROUND 715 PM AND IN NORTH SALEM MASSACHUSETTS AROUND 740 PM. CONDITIONS CONTINUE FAVORABLE FOR STRONG THUNDERSTORMS THROUGHOUT EXTREME EASTERN MASSACHUSETTS UNTIL ABOUT 9 PM. THEN THE STORMS SHOULD PUSH COMPLETELY OUT TO SEA AROUND 930 OR 10 PM. ALL INTERESTS SHOULD LISTEN FOR LATER STATEMENTS AND OR WARNINGS FROM THE BOSTON AND WORCESTER OFFICES OF THE NATIONAL WEATHER SERVICE. THE NEXT STATEMENT WILL PROBABLY BE ISSUED AROUND 815 PM. DRAG
Special weather statement, Aug 4, 7:48 PM EDT, 27 minutes before
MAZ001-002-004-007-008-501-502-504-050200- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE BOSTON MA 746 PM EDT WED AUG 4 1993 ...A SEVERE THUNDERSTORM WARNING CONTINUED UNTIL 8 PM FOR SOUTHERN ESSEX COUNTY AND A SEVERE THUNDERSTORM WARNING WAS IN EFFECT UNTIL 830 PM IN SOUTHERN WORCESTER COUNTY... THERE HAVE BEEN SEVERAL REPORTS OF TREES AND LARGE BRANCHES DOWNED IN EASTERN MASSACHUSETTS BETWEEN 7 AND 740 PM AS STRONG THUNDERSTORMS MOVE THROUGH THE REGION. PEA SIZED HAIL HAS BEEN REPORTED FROM THE NORTHWEST TO NORTHEAST OF BOSTON. MARBLE SIZED HAIL WAS REPORTED IN STAFFORD SPRINGS OF NORTHEAST CONNECTICUT AROUND 715 PM AND IN NORTH SALEM MASSACHUSETTS AROUND 740 PM. CONDITIONS CONTINUE FAVORABLE FOR STRONG THUNDERSTORMS THROUGHOUT EXTREME EASTERN MASSACHUSETTS UNTIL ABOUT 9 PM. THEN THE STORMS SHOULD PUSH COMPLETELY OUT TO SEA AROUND 930 OR 10 PM. ALL INTERESTS SHOULD LISTEN FOR LATER STATEMENTS AND OR WARNINGS FROM THE BOSTON AND WORCESTER OFFICES OF THE NATIONAL WEATHER SERVICE. THE NEXT STATEMENT WILL PROBABLY BE ISSUED AROUND 815 PM. DRAG
Special weather statement, Aug 4, 8:15 PM EDT, 0 minutes before
MAZ004-050100- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE WORCESTER MA 815 PM EDT WED AUG 4 1993 ...SEVERE THUNDERSTORM WARNING CONTINUES FOR SOUTHERN WORCESTER COUNTY UNTIL 900 PM... AT 815 PM NATIONAL WEATHER SERVICE RADAR INDICATED STRONG THUNDERSTORMS ACROSS SOUTHERN WORCESTER COUNTY. THESE THUNDERSTORMS ARE MOVING TO THE EAST AT 30 MPH. THE THNUNDERSTORMS THAT WERE IN THE WEBSTER AND DUDLEY AREAS HAVE MOVED TO THE EAST INTO THE UXBRIDGE AREA. WITH THE EASTWARD MOVEMENT OF THESE STORMS THEY SHOULD BE OUT OF WORCESTER COUNTY BY 9 PM. REMEMBER IF THREATNING WEATHER APPROACHS SEEK SHELTER IMMEDIATELY. BILODEAU
The office that day
Everything else NWS Boston/Norton, MA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 4, 8:00 PM EDT | Severe Thunderstorm Warning | BOX | Worcester | 60 min |
| Aug 4, 8:20 PM EDT | Severe Thunderstorm Warning | BOX | Middlesex | 40 min |
Nearby
Severe Thunderstorm Warnings in Massachusetts, 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.