Alert archive / Massachusetts / Severe Thunderstorm Warnings in 1994
Severe Thunderstorm Warning 35, NWS Boston/Norton, MA
NWS Boston/Norton, MA issued this severe thunderstorm warning at Jul 7, 1994, 2:28 PM EDT for Norfolk County, Massachusetts. It was in force for 62 min.
The area
The counties it named.
The facts
- Issued
- Jul 7, 1994, 2:28 PM EDT (18:28 UTC)
- Expired
- Jul 7, 1994, 3:30 PM EDT
- In force
- 62 min
- Issued by
- NWS Boston/Norton, MA
- Area
- Whole counties
County Norfolk County, MA
The nearest sounding before it
Chatham, MA (KCHH), launched 12:00Z, 6.5 hours before the alert went out and 115 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
- 1169 J/kg
- Mixed-layer CIN
- -79 J/kg
- Mixed-layer LCL
- 954 m above ground
- 0-6 km bulk shear
- 12 kt
- 0-1 km storm-relative helicity
- -7 m²/s²
- 0-3 km storm-relative helicity
- 29 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KBOS 071830 SVRBOS MAC021-071930- BULLETIN - EBS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE TAUNTON MA 228 PM EDT THU JUL 7 1994 THE NATIONAL WEATHER SERVICE IN TAUNTON HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 330 PM EDT FOR PEOPLE IN THE FOLLOWING LOCATION... IN MASSACHUSETTS ...NORFOLK COUNTY AND THE ADJACENT COASTAL WATERS. THUNDERSTORMS...SOME SEVERE...EXTEND FROM WESTBORO TO ATTLEBORO. THESE THUDERSTORMS WERE MOVING SOUTHEAST AT 15 MILES AND HOUR...AND WILL CONTINUE TO AFFECT NORFOLK COUNTY UNTIL 330 PM. THESE STORMS HAVE PRODUCED DIME SIZE HAIL AND HAVE BLOWN DOWN TREES IN WESTBORO. 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. HANLEY/VALLEE &
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, Jul 7, 1:12 PM EDT, 1 hour 16 minutes before
MAZ013-017-018-019-501-504-071915- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE TAUNTON MA 110 PM EDT THU JUL 7 1994 AT 105 PM NATIONAL WEATHER SERVICE DOPPLER RADAR AT TAUNTON SHOWED AN AREA OF STRONG THUNDERSTORMS BETWEEN FOXBORO AND BRIDGEWATER MOVING EAST AT 15 MILES PER HOUR. PEA SIZE HAIL AND A WIND GUST TO 47 MILES PER HOUR WAS REPORTED IN EASTON. THESE STORMS WILL CONTINUE TO MOVE EASTWARD ACROSS PLYMOUTH COUNTY AND CAPE COD BAhY BY 200 PM. SMALL HAIL...HEAVY RAIN...AND GUSTY WINDS CAN BEXPECTED WITH THESE STORMS. BOATERS SHOULD SEEK SAFE HARBOR SHOULD THESE STORMS APPROACH. WGH&
The office that day
Everything else NWS Boston/Norton, MA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 7, 1:16 PM EDT | Severe Thunderstorm Warning | BOX | Bristol, Plymouth | 59 min |
| Jul 7, 1:27 PM EDT | Severe Thunderstorm Warning | BOX | Norfolk | 63 min |
| Jul 7, 1:37 PM EDT | Severe Thunderstorm Warning | BOX | Middlesex | 68 min |
| Jul 7, 1:45 PM EDT | Severe Thunderstorm Warning | BOX | Worcester | 30 min |
| Jul 7, 2:11 PM EDT | Severe Thunderstorm Warning | BOX | Bristol, Plymouth | 64 min |
| Jul 7, 2:11 PM EDT | Severe Thunderstorm Warning | BOX | Worcester | 49 min |
| Jul 7, 2:41 PM EDT | Severe Thunderstorm Warning | BOX | Middlesex | 64 min |
| Jul 7, 3:12 PM EDT | Severe Thunderstorm Warning | BOX | Bristol | 63 min |
| Jul 7, 5:45 PM EDT | Severe Thunderstorm Warning | BOX | Franklin | 60 min |
| Jul 7, 6:56 PM EDT | Severe Thunderstorm Warning | BOX | Hampshire | 64 min |
Nearby
Severe Thunderstorm Warnings in Massachusetts, 1994Every severe thunderstorm warning in 1994
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.