Alert archive / Massachusetts / Severe Thunderstorm Warnings in 1994

Severe Thunderstorm Warning 54, NWS Boston/Norton, MA

July 23, 1994Norfolk County, Massachusetts

NWS Boston/Norton, MA issued this severe thunderstorm warning at Jul 23, 1994, 4:54 PM EDT for Norfolk County, Massachusetts. It was in force for 36 min.

The area

The counties it named.

The facts

Issued: Jul 23, 1994, 4:54 PM EDT (20:54 UTC)
Expired: Jul 23, 1994, 5:30 PM EDT
In force: 36 min
Issued by: NWS Boston/Norton, MA
Area: Whole counties

County Norfolk County, MA

The nearest sounding before it

Albany, NY (KALB), launched 12:00Z, 8.9 hours before the alert went out and 225 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 226 J/kg
Mixed-layer CIN: -15 J/kg
Mixed-layer LCL: 652 m above ground
0-6 km bulk shear: 35 kt
0-1 km storm-relative helicity: 25 m²/s²
0-3 km storm-relative helicity: 88 m²/s²
Significant tornado parameter: 0.1
Supercell composite: 0.8

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 23, 2:03 PM EDT, 2 hours 51 minutes before

CTZ001>004-008-012-232000-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE HARTFORD CT
203 PM EDT SAT JUL 23 1994

...HEAVY THUNDERSTORMS MOVING ACROSS CONNECTICUT...

AT 200 PM NATIONAL WEATHER SERVICE RADAR INDICATED A LINE OF HEAVY
THUNDERSTORMS WHICH EXTENDS FROM SOUTHERN NEW HAMPSHIRE SOUTHWEST
ACROSS CENTRAL AND WESTERN CONNECTICUT INTO NORTHERN NEW JERSEY. THE
HEAVIEST OF THE THUNDERSTORMS ARE MOVING INTO HARTFORD COUNTY AND WILL
PRODUCE TORRENTIAL RAINS...BRIEF GUSTY WINDS AND DANGEROUS LIGHTNING.

THE ENTIRE AREA OF SHOWERS AND THUNDERSTORMS IS MOVING NORTHEAST AT 30
MPH.

LISTEN TO NOAA WEATHER RADIO OR YOUR LOCAL TELEVISION OR RADIO
STATIONS FOR FURTHER UPDATES ON THESE STORMS.

NOTCHEY

Special weather statement, Jul 23, 2:04 PM EDT, 2 hours 50 minutes before

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Special weather statement, Jul 23, 2:05 PM EDT, 2 hours 49 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TAUNTON MA
205 PM EDT SAT JUL 23 1994

...THUNDERSTORMS WERE MOVING ACROSS WESTERN AND CENTRAL MASSACHUSETTS...

AT 2 PM...NATIONAL WEATHER SERVICE RADAR INDICATED THUNDERSTORMS WERE
MOVING THROUGH FRANKLIN...HAMPSHIRE...HAMPDEN...AND WORCESTER COUNTIES.
THESE STORMS MAY PRODUCE LOCALLY HEAVY RAIN WHICH COULD CAUSE FLOODING
OF STREETS AND ROADS.  THESE STORMS MAY ALSO PRODUCE GUSTY WINDS.

MOVEMENT WAS TO THE NORTHEAST AT 30 MPH.

KLEIN

Special weather statement, Jul 23, 3:40 PM EDT, 1 hour 14 minutes before

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Special weather statement, Jul 23, 3:42 PM EDT, 1 hour 12 minutes before

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Special weather statement, Jul 23, 4:00 PM EDT, 54 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 23, 2:36 PM EDT	Severe Thunderstorm Warning	BOX	Worcester	54 min

Nearby

Severe Thunderstorm Warnings in Massachusetts, 1994 Every 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.