Alert archive / Massachusetts / Severe Thunderstorm Warnings in 1993

Severe Thunderstorm Warning 59, NWS Boston/Norton, MA

August 28, 1993Worcester County, Massachusetts

NWS Boston/Norton, MA issued this severe thunderstorm warning at Aug 28, 1993, 1:42 PM EDT for Worcester County, Massachusetts. It was in force for 63 min.

The area

The counties it named.

The facts

Issued
Aug 28, 1993, 1:42 PM EDT (17:42 UTC)
Expired
Aug 28, 1993, 2:45 PM EDT
In force
63 min
Issued by
NWS Boston/Norton, MA
Area
Whole counties

County Worcester County, MA

The nearest sounding before it

Chatham, MA (KCHH), launched 12:00Z, 5.7 hours before the alert went out and 177 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 1993-08-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 208 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 1993-08-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 18 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
208 J/kg
Mixed-layer CIN
-193 J/kg
Mixed-layer LCL
1137 m above ground
0-6 km bulk shear
15 kt
0-1 km storm-relative helicity
18 m²/s²
0-3 km storm-relative helicity
-43 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, Aug 28, 1:20 PM EDT, 22 minutes before
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Special weather statement, Aug 28, 1:22 PM EDT, 20 minutes before
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Special weather statement, Aug 28, 1:26 PM EDT, 16 minutes before
RIZ001-002-502-282100-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PROVIDENCE RI
120 PM EDT SAT AUG 28 1993

...93 DEGREE TEMPERATURES IN RHODE ISLAND FEEL MORE LIKE 100...

AT 100 PM THE TEMPERATURE AT THE PROVIDENCE NATIONAL WEATHER SERVICE
OFFICE IN RHODE ISLAND ROSE TO 93 DEGREES.  THE TEMPERATURE IS
COMBINING WITH HIGH HUMIDITY TO CREATE AN APPARENT TEMPERATURE AROUND
100 DEGREES.

HOT AND HUMID TROPICAL AIR WILL CONTINUE TO MOVE INTO RHODE ISLAND
ON SOUTHWESTERLY WINDS THE REST OF THIS AFTERNOON WITH TEMPERATURES
AWAY FROM THE SHORE REACHING 95 TO 100 DEGRESS HERE IN THE OCEAN
STATE...WITH APPARENT TEMPERATURES OF 100 TO 120.

PEOPLE IN RHODE ISLAND SHOULD TAKE IT SLOW THE RvEST OF THIS AFTERNOON.
THE DANGERS OF HEATSTROKE...SUNSTROKE...AND HEAT EXHAUTION ARE VERY
REAL.  DRINK PLEANTY OF NON ALCOHOLIC LIQUIDS AND STAY OUT OF THE SUN.

CARBONE

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 28, 1:36 PM EDTSevere Thunderstorm WarningBOXHampden69 min
Aug 28, 3:12 PM EDTSevere Thunderstorm WarningBOXHampden63 min
Aug 28, 3:30 PM EDTSevere Thunderstorm WarningBOXNortheastern Connecticut Planning Region60 min
Aug 28, 4:21 PM EDTSevere Thunderstorm WarningBOXSoutheastern Connecticut Planning Region, Northeastern Connecticut Planning Region69 min
Aug 28, 3:34 PM EDTSevere Thunderstorm WarningBOXProvidence56 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.