Alert archive / Massachusetts / Severe Thunderstorm Warnings in 1994

Severe Thunderstorm Warning 51, NWS Boston/Norton, MA

July 8, 1994Bristol County, Massachusetts

NWS Boston/Norton, MA issued this severe thunderstorm warning at Jul 8, 1994, 6:14 PM EDT for Bristol County, Massachusetts. It was in force for 61 min.

The area

The counties it named.

The facts

Issued
Jul 8, 1994, 6:14 PM EDT (22:14 UTC)
Expired
Jul 8, 1994, 7:15 PM EDT
In force
61 min
Issued by
NWS Boston/Norton, MA
Area
Whole counties

County Bristol County, MA

The nearest sounding before it

Chatham, MA (KCHH), launched 12:00Z, 10.2 hours before the alert went out and 93 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.

Skew-T log-pSkew-T log-p diagram, Chatham, MA at 12:00Z on 1994-07-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 29 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Chatham, MA at 12:00Z on 1994-07-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 53 square meters per square second.1939Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
29 J/kg
Mixed-layer CIN
-229 J/kg
Mixed-layer LCL
945 m above ground
0-6 km bulk shear
18 kt
0-1 km storm-relative helicity
53 m²/s²
0-3 km storm-relative helicity
46 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

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, Jul 8, 5:22 PM EDT, 52 minutes before
MAZ012-013-082330-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TAUNTON MA
522 PM EDT FRI JUL 8 1994

...THUNDERSTORMS WERE RAPIDLY DEVELOPING IN SOUTHERN WORCESTER AND
WESTERN NORFOLK COUNTIES...

...A SEVERE THUNDERSTORM WATCH CONTINUES FOR WORCESTER COUNTY WEST TO
BERKSHIRE COUNTY...

WEATHER RADAR INDICATED THAT THUNDERSTORMS HAD RAPIDLY DEVELOPED IN
SOUTHERN WORCESTER COUNTY...BETWEEN STURBRIDGE AND WHITINSVILLE.
ANOTHER AREA OF THUNDERSTORMS WAS DEVELOPING OVER FRANKLIN IN NORFOLK
COUNTY.

ALL OF THE ACTIVITY WAS MOVING SLOWLY EAST AND WILL CONTINUE TO AFFECT
THESE COUNTIES THROUGH 6 PM.  SMALL HAIL AND GUSTY WINDS ARE LIKELY.
TORRENTIAL RAINS MAY CAUSE LOCALIZED STREET FLOODING.

ANYONE WITH OUTDOOR ACTIVITIES SHOULD PUT THEM ON HOLD UNTIL THESE
STORMS MOVE THROUGH.  IF OUTSIDE...BE READY TO HEAD INSIDE IMMEDIATELY.

VALLEE
Special weather statement, Jul 8, 5:23 PM EDT, 51 minutes before
MAZ012-013-082330-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TAUNTON MA
522 PM EDT FRI JUL 8 1994

...THUNDERSTORMS WERE RAPIDLY DEVELOPING IN SOUTHERN WORCESTER AND
WESTERN NORFOLK COUNTIES...

...A SEVERE THUNDERSTORM WATCH CONTINUES FOR WORCESTER COUNTY WEST TO
BERKSHIRE COUNTY...

WEATHER RADAR INDICATED THAT THUNDERSTORMS HAD RAPIDLY DEVELOPED IN
SOUTHERN WORCESTER COUNTY...BETWEEN STURBRIDGE AND WHITINSVILLE.
ANOTHER AREA OF THUNDERSTORMS WAS DEVELOPING OVER FRANKLIN IN NORFOLK
COUNTY.

ALL OF THE ACTIVITY WAS MOVING SLOWLY EAST AND WILL CONTINUE TO AFFECT
THESE COUNTIES THROUGH 6 PM.  SMALL HAIL AND GUSTY WINDS ARE LIKELY.
TORRENTIAL RAINS MAY CAUSE LOCALIZED STREETb FLOODING.

ANYONE WITH OUTDOOR ACTIVITIES SHOULD PUT THEM ON HOLD UNTIL THESE
STORMS MOVE THROUGH.  IF OUTSIDE...BE READY TO HEAD INSIDE IMMEDIATELY.

VALLEE
Special weather statement, Jul 8, 5:46 PM EDT, 28 minutes before
CTZ001>004-008-012-082345-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE HARTFORD CT
546 PM EDT FRI JUL 8 1994

...FLASH FLOOD WARNING IN EFFECT FOR WINDHAM COUNTY UNTIL 715 PM...

...SEVERE THUNDERSTORM WARNING IN EFFECT FOR HARTFORD COUNTY WILL BE
ALLOWED TO EXPIRE AT 545...

...FLASHFLOOD WARNING IN EFFECT FOR SOUTHERN HARTFORD COUNTY UNTIL 600
PM...

...SEVERE THUNDERSTORM WARNINGS FOR WINDHAM...TOLLAND...LITCHFIELD
COUNTY HAS EXPIRED...

AT 540 PM EDT WEATHER SERVICE RADAR INDICATES THAT THE LINE OF INTENSE
THUNDERSTORMS MOVING ACROSS HARTFORD COUNTY HAS WEAKENED AS IT CONTINUES
TO MOVE SLOWLY EAST INTO WESTERN TOLLAND COUNTY. THUNDERSTORMS ARE STILL
CAPABLE OF PRODUCING TORRENTIAL RAINS...BRIEF GUSTY WINDS AND DANGEROUS
LIGHTNING.

THE SEVERE THUNDERSTORM THAT HAD BEEN OVER WINDHAM COUNTY HAS MOVED INTO
NORTHERN RHODE ISLAND. THIS STORM HAS DUMPED OVER 3 INCHES OF RAINFALL
AND THUS A FLASH FLOOD WARNING IS IN EFFECT UNTIL 715 PM FOR WINDHAM
COUNTY.

SHOWERS AND THUNDERSTORM ARE POSSIBLE OVER THE NEXT FEW HOURS...SOME OF
WHICH COULD PRODUCE VERY HEAVY RAIN AND DANGEROUS LIGHTNING.

STAY TUNED TO NOAA WEATHER RADIO OR YOUR LOCAL RADIO AND T.V. STATIONS
FOR LATER UPDATES.

NOTCHEY

WWUS30
Special weather statement, Jul 8, 5:48 PM EDT, 26 minutes before
CTZ001>004-008-012-082345-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE HARTFORD CT
546 PM EDT FRI JUL 8 1994

...FLASH FLOOD WARNING IN EFFECT FOR WINDHAM COUNTY UNTIL 715 PM...

...SEVERE THUNDERSTORM WARNING IN EFFECT FOR HARTFORD COUNTY WILL BE
ALLOWED TO EXPIRE AT 545...

...FLASHFLOOD WARNING IN EFFECT FOR SOUTHERN HARTFORD COUNTY UNTIL 600
PM...

...SEVERE THUNDERSTORM WARNINGS FOR WINDHAM...TOLLAND...LITCHFIELD
COUNTY HAS EXPIRED...

AT 540 PM EDT WEATHER SERVICE RADAR INDICATES THAT THE LINE OF INTENSE
THUNDERSTORMS MOVING ACROSS HARTFORD COUNTY HAS WEAKENED AS IT CONTINUES
TO MOVE SLOWLY EAST INTO WESTERN TOLLAND COUNTY. THUNDERSTORMS ARE STILL
CAPABLE OF PRODUCING TORRENTIAL RAINS...BRIEF GUSTY WINDS AND DANGEROUS
LIGHTNING.

THE SEVERE THUNDERSTORM THAT HAD BEEN OVER WINDHAM COUNTY HAS MOVED INTO
NORTHERN RHODE ISLAND. THIS STORM HAS DUMPED OVER 3 INCHES OF RAINFALL
AND THUS A FLASH FLOOD WARNING IS IN EFFECT UNTIL 715 PM FOR WINDHAM
COUNTY.

SHOWERS AND THUNDERSTORM ARE POSSIBLE OVER THE NEXT FEW HOURS...SOME OF
WHICH COULD PRODUCE VERY HEAVY RAIN AND DANGEROUS LIGHTNING.

STAY TUNED TO NOAA WEATHER RADIO OR YOUR LOCAL RADIO AND T.V. STATIONS
FOR LATER UPDATES.

NOTCHEY
Special weather statement, Jul 8, 6:05 PM EDT, 9 minutes before
TTAA00 KBDL082205
LIGHTNING.

THE SEVERE THUNDERSTORM THAT HAD BEEN OVER WINDHAM COUNTY HAS MOVED INTO
NORTHERN RHODE ISLAND. THIS STORM HAS DUMPED OVER 3 INCHES OF RAINFALL
AND THUS A FLASH FLOOD WARNING IS IN EFFECT UNTIL 715 PM FOR WINDHAM
COUNTY.

SHOWERS AND THUNDERSTORM ARE POSSIBLE OVER THE NEXT FEW HOURS...SOME OF
WHICH COULD PRODUCE VERY HEAVY RAIN AND DANGEROUS LIGHTNING.

STAY TUNED TO NOAA WEATHER RADIO OR YOUR LOCAL RADIO AND T.V. STATIONS
FOR LATER UPDATES.

NOTCHEY
Special weather statement, Jul 8, 6:07 PM EDT, 7 minutes before
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The office that day

Everything else NWS Boston/Norton, MA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 7, 8:07 PM EDTSevere Thunderstorm WarningBOXHampden68 min
Jul 8, 5:44 PM EDTSevere Thunderstorm WarningBOXNorfolk, Worcester61 min
Jul 8, 6:06 PM EDTSevere Thunderstorm WarningBOXMiddlesex69 min
Jul 7, 8:45 PM EDTSevere Thunderstorm WarningBOXCapitol Planning Region60 min
Jul 8, 3:16 PM EDTSevere Thunderstorm WarningBOXCapitol Planning Region, Northwest Hills Planning Region59 min
Jul 8, 3:52 PM EDTSevere Thunderstorm WarningBOX68 min
Jul 8, 4:15 PM EDTSevere Thunderstorm WarningBOXCapitol Planning Region60 min
Jul 8, 4:18 PM EDTSevere Thunderstorm WarningBOXNortheastern Connecticut Planning Region57 min
Jul 8, 4:37 PM EDTSevere Thunderstorm WarningBOXCapitol Planning Region68 min
Jul 8, 4:30 PM EDTSevere Thunderstorm WarningBOXKent, Providence2 hr

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.