Alert archive / Massachusetts / Severe Thunderstorm Warnings in 1994
Severe Thunderstorm Warning 78, NWS Boston/Norton, MA
NWS Boston/Norton, MA issued this severe thunderstorm warning at Sep 9, 1994, 6:06 PM EDT for Norfolk County, Plymouth County, Massachusetts. It was in force for 54 min.
The area
The counties it named.
The facts
- Issued
- Sep 9, 1994, 6:06 PM EDT (22:06 UTC)
- Expired
- Sep 9, 1994, 7:00 PM EDT
- In force
- 54 min
- Issued by
- NWS Boston/Norton, MA
- Area
- Whole counties
Counties Norfolk County, MA, Plymouth County, MA
The nearest sounding before it
Chatham, MA (KCHH), launched 12:00Z, 10.1 hours before the alert went out and 94 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
- 5 J/kg
- Mixed-layer CIN
- -109 J/kg
- Mixed-layer LCL
- 1500 m above ground
- 0-6 km bulk shear
- 33 kt
- 0-1 km storm-relative helicity
- 78 m²/s²
- 0-3 km storm-relative helicity
- 129 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 092208 RRA SVRBOS MAC021-023-092300- BULLETIN - EBS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE TAUNTON MA 606 PM EDT FRI SEP 9 1994 THE NATIONAL WEATHER SERVICE IN TAUNTON HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 700 PM EDT FOR PEOPLE IN THE FOLLOWING LOCATIONS... IN MASSACHUSETTS ...EASTERN NORFOLK COUNTY...SOUTHERN PLYMOUTH COUNTY AND THE ADJACENT COASTAL WATERS. AT 600 PM DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM OVER NORTHEAST NORFOLK COUNTY. THIS STORM WAS OVER MILTON AND MOVING EAST AT 35 MPH AND WILL BE AFFECTING QUICNY AND BRAINTREE BY 630 PM.
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, Sep 9, 5:24 PM EDT, 42 minutes before
MAZ005>007-013>024-501-502-504-092300- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE TAUNTON MA 525 PM EDT FRI SEP 9 1994 AT 515 PM RADAR AT NATIONAL WEATHER SERVICE TAUNTON MA INDICATED A LINE OF STRONG THUNDERSTORMS FROM SOUTHEAST NEW HAMPSHIRE TO JUST WEST OF WORCESTER TO HARTFORD CONNECTICUT. THIS LINE WAS MOVING SOUTHEAST AT 20 TO 30 MPH...WHILE INDIVIDUAL STORMS WERE MOVING EAST AT AROUND 35 MPH. MUCH OF EASTERN MASSACHUSETTS...ESPECIALLY BOSTON AND POINTS NORTH...SHOULD EXPECT ANOTHER ROUND OF THUNDERSTORMS SOMETIME BETWEEN 6 AND 7 PM THIS EVENING. ANOTHER AREA OF STRONG THUNDERSTORMS WAS OFF THE NORTH SHORE COASTLINE MOVING FURTHER OUT TO SEA. HEAVY RAIN AND SMALL HAIL...ALONG WITH FREQUENT LIGHTNING...HAVE BEEN THE FEATURES ASSOCIATED WITH THESE THUNDERSTORMS. GIRODO
Special weather statement, Sep 9, 5:25 PM EDT, 41 minutes before
MAZ005>007-013>024-501-502-504-092300- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE TAUNTON MA 525 PM EDT FRI SEP 9 1994 AT 515 PM RADAR AT NATIONAL WEATHER SERVICE TAUNTON MA INDICATED A LINE OF STRONG THUNDERSTORMS FROM SOUTHEAST NEW HAMPSHIRE TO JUST WEST OF WORCESTER TO HARTFORD CONNECTICUT. THIS LINE WAS MOVING SOUTHEAST AT 20 TO 30 MPH...WHILE INDIVIDUAL STORMS WERE MOVING EAST AT AROUND 35 MPH. MUCH OF EASTERN MASSACHUSETTS...ESPECIALLY BOSTON AND POINTS NORTH...SHOULD EXPECT ANOTHER ROUND OF THUNDERSTORMS SOMETIME BETWEEN 6 AND 7 PM THIS EVENING. ANOTHER AREA OF STRONG THUNDERSTORMS WAS OFF THE NORTH SHORE COASTLINE MOVING FURTHER OUT TO SEA. HEAVY RAIN AND SMALL HAIL...ALONG WITH FREQUENT LIGHTNING...HAVE BEEN THE FEATURES ASSOCIATED WITH THESE THUNDERSTORMS. GIRODO
Local storm report, Sep 9, 5:45 PM EDT, 21 minutes before
LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BOSTON MA
542 PM EDT FRI AUG 9 1994
540 PM EDT MARLBORO GOLFBALL SIZE HAIL...TREES DOWN...
(MIDDLESEX CO) AND POWER OUTAGES REPORT.ED BY
MARLBORO POLICE DEPT.
FIELDLocal storm report, Sep 9, 5:47 PM EDT, 19 minutes before
LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BOSTON MA
542 PM EDT FRI AUG 9 1994
540 PM EDT MARLBORO MA GOLFBALL SIZE HAIL...TREES DOWN...
(MIDDLESEX CO) AND POWER OUTAGES RE8PORTED BY
MARLBORO POLICE DEPT.
FIELDLocal storm report, Sep 9, 5:56 PM EDT, 10 minutes before
LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BOSTON MA
553 PM EDT FRI AUG 9 1994
525 PM EDT NORTHBORO MA DIME SIZE HAIL REPORTED BY NORTHBORO
(WORCESTER CO) FIRE DEPT.
540 PM EDT MARLBORO MA GOLFBALL SIZE HAIL...TREES DOWN...
(MIDDLESEX CO) AND POWER OUTAGES REPORTED BY
MARLBORO POLICE DEPT.
543 PM EDT SUDBURY MA
(MIDDLESEX CO.) MARBLE SIZE HA^IL REPORTED BY
SUDBURY POLICE DEPT.
FIELDLocal storm report, Sep 9, 5:59 PM EDT, 7 minutes before
LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BOSTON MA
557 PM EDT FRI AUG 9 1994
525 PM EDT NORTHBORO MA DIME SIZE HAIL REPORTED BY NORTHBORO
(WORCESTER CO) FIRE DEPT.
540 PMThe office that day
Everything else NWS Boston/Norton, MA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 9, 4:06 PM EDT | Severe Thunderstorm Warning | BOX | Plymouth | 26 min |
| Sep 9, 4:10 PM EDT | Severe Thunderstorm Warning | BOX | Essex | 50 min |
| Sep 9, 5:07 PM EDT | Severe Thunderstorm Warning | BOX | Essex | 53 min |
| Sep 9, 5:21 PM EDT | Severe Thunderstorm Warning | BOX | Middlesex, Worcester | 54 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.