Alert archive / Massachusetts / Severe Thunderstorm Warnings in 1993
Severe Thunderstorm Warning 50, NWS Boston/Norton, MA
NWS Boston/Norton, MA issued this severe thunderstorm warning at Aug 4, 1993, 7:18 PM EDT for Essex County, Massachusetts. It was in force for 42 min.
The area
The counties it named.
The facts
- Issued
- Aug 4, 1993, 7:18 PM EDT (23:18 UTC)
- Expired
- Aug 4, 1993, 8:00 PM EDT
- In force
- 42 min
- Issued by
- NWS Boston/Norton, MA
- Area
- Whole counties
County Essex County, MA
The nearest sounding before it
Albany, NY (KALB), launched 12:00Z, 11.3 hours before the alert went out and 242 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
- 11 J/kg
- Mixed-layer CIN
- -103 J/kg
- Mixed-layer LCL
- 1132 m above ground
- 0-6 km bulk shear
- 46 kt
- 0-1 km storm-relative helicity
- 85 m²/s²
- 0-3 km storm-relative helicity
- 106 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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, 6:50 PM EDT, 28 minutes before
MAZALL-MAZ501-502-504-050100- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE BOSTON MA 650 PM EDT WED AUG 4 1993 ...TWO REPORTS OF PEA SIZED HAIL HAVE BEEN RECEIVED FROM SPECIAL OBSERVERS TO THE NATIONAL WEATHER SERVICE IN WAKEFIELD AND STONEHAM OF BOSTONS NORTHWEST SUBURBS AROUND 645 PM... RADAR AT 639 PM SHOWED SHOWERS AND SCATTERED STRONG THUNDERSTORMS OCCURRING IN A NORTH...SOUTH BAND ACROSS NORTH CENTRAL AND WESTERN WORCESTER COUNTY...JUST TO THE WEST OF WORCESTER. ALSO...SCATTERED SHOWERS AND STRONG THUNDERSTORMS WERE OCCURRING ALONG BOSTONS NORTH SHORE FROM NEAR DANVERS...PEABODY...BEVERLY AND CAPE ANN EXTENDING INTO BOSTONS NORTHWEST SUBURBS NEAR STONEHAM AND WAKEFIELD. ALL THE STORMS WERE MOVING NORTHEAST. 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 AROUND 730 PM. DRAG
Special weather statement, Aug 4, 6:51 PM EDT, 27 minutes before
MAZALL-MAZ501-502-504-050100- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE BOSTON MA 650 PM EDT WED AUG 4 1993 ...TWO REPORTS OF PEA SIZED HAIL HAVE BEEN RECEIVED FROM SPECIAL OBSERVERS TO THE NATIONAL WEATHER SERVICE IN WAKEFIELD AND STONEHAM OF BOSTONS NORTHWEST SUBURBS AROUND 645 PM... RADAR AT 639 PM SHOWED SHOWERS AND SCATTERED STRONG THUNDERSTORMS OCCURRING IN A NORTH...SOUTH BAND ACROSS NORTH CENTRAL AND WESTERN WORCESTER COUNTY...JUST TO THE WEST OF WORCESTER. ALSO...SCATTERED SHOWERS AND STRONG THUNDERSTORMS WERE OCCURRING ALONG BOSTONS NORTH SHORE FROM NEAR DANVERS...PEABODY...BEVERLY AND CAPE ANN EXTENDING INTO BOSTONS NORTHWEST SUBURBS NEAR STONEHAM AND WAKEFIELD. ALL THE STORMS WERE MOVING NORTHEAST. 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 PXROBABLY BE ISSUED AROUND 730 PM. DRAG
Special weather statement, Aug 4, 7:10 PM EDT, 8 minutes before
MAZ004-005-006-050000- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE WORCESTER MA 710 PM EDT WED AUG 4 1993 AT 710 PM NATIONAL WEATHER SERVICE RADAR INDICATED STRONG THUNDERSTORMS ACROSS CENTRAL AND NORTHERN WORCESTER COUNTY. THESE THUNDERSTORMS ARE MOVING TO THE NORTHEAST AT 30 MPH. SOME OF THESE THUNDERSTORMS MAY PRODUCE TORRENTIAL RAIN...HAIL AND GUSTY WINDS. 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
Special weather statement, Aug 4, 7:13 PM EDT, 5 minutes before
MAZ004-005-006-050000- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE WORCESTER MA 710 PM EDT WED AUG 4 1993 AT 710 PM NATIONAL WEATHER SERVICE RADAR INDICATED STRONG THUNDERSTORMS ACROSS CENTRAL AND NORTHERN WORCESTER COUNTY. THESE THUNDERSTORMS ARE MOVING TO THE NORTHEAST AT 30 MPH. SOME OF THESE THUNDERSTORMS MAY PRODUCE TORRENTIAL RAIN...HAIL AND GUSTY WINDS. 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
Special weather statement, Aug 4, 7:13 PM EDT, 5 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
Special weather statement, Aug 4, 7:16 PM EDT, 2 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
The office that day
Everything else NWS Boston/Norton, MA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 4, 7:35 PM EDT | Severe Thunderstorm Warning | BOX | Worcester | 55 min |
| Aug 4, 7:20 PM EDT | Severe Thunderstorm Warning | BOX | Northeastern Connecticut Planning Region | 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.