Alert archive / Pennsylvania / Tornado Warnings in 1993

Tornado Warning 4, NWS Cleveland, OH

June 27, 1993Mercer County, Pennsylvania

NWS Cleveland, OH issued this tornado warning at Jun 27, 1993, 8:48 PM EDT for Mercer County, Pennsylvania. It was in force for 42 min.

The area

The counties it named.

The facts

Issued
Jun 27, 1993, 8:48 PM EDT (00:48 UTC)
Expired
Jun 27, 1993, 9:30 PM EDT
In force
42 min
Issued by
NWS Cleveland, OH
Area
Whole counties

County Mercer County, PA

The nearest sounding before it

Pittsburgh, PA (KPIT), launched 00:00Z, 0.8 hours before the alert went out and 100 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, Pittsburgh, PA at 00:00Z on 1993-06-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 352 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, Pittsburgh, PA at 00:00Z on 1993-06-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 51 square meters per square second.1939587897Sfc1 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
352 J/kg
Mixed-layer CIN
-40 J/kg
Mixed-layer LCL
1529 m above ground
0-6 km bulk shear
32 kt
0-1 km storm-relative helicity
51 m²/s²
0-3 km storm-relative helicity
105 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.4

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
TTAA00 KYNG 280049
TORYNG
PAC085-280130-
 
BULLETIN - EBS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE YOUNGSTOWN OH
848 PM EDT SUN JUN 27 1993
 
THE NATIONAL WEATHER SERVICE IN YOUNGSTOWN HAS ISSUED A
TORNADO WARNING EFFECTIVE UNTIL  930 PM EDT
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN NORTHWEST PENNSYLVANIA
 
   ...MERCER COUNTY
 
AT 843 PM EDT SPOTTERS JUST EAST WEST MIDDLESEX WERE REPORTING A
POSSIBLE FUNNEL CLOUD. THIS STORM WAS MOVING TO THE EAST AT 35 MPH. THIS
STORM WILL AFFECT THE MERCER AREA BY 900 PM EDT.
 
 
IF YOU ARE IN THE PATH OF A TORNADO...THE SAFEST PLACE IS A
BASEMENT.  GET UNDER A WORKBENCH OR PIECE OF STURDY FURNITURE.
IF NO BASEMENT IS AVAILABLE...SEEK SHELTER IN AN I6NTERIOR ROOM
SUCH AS A CLOSET ON THE LOWEST FLOOR.  USE BLANKETS...PILLOWS...
OR CUSHIONS TO COVER YOUR BODY.  AVOID WINDOWS.
 
MITCHELL

The office that day

Everything else NWS Cleveland, OH issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 27, 8:12 PM EDTSevere Thunderstorm WarningCLEErie48 min
Jun 27, 8:28 PM EDTSevere Thunderstorm WarningCLECrawford, Venango62 min
Jun 27, 8:32 PM EDTSevere Thunderstorm WarningCLEMercer43 min
Jun 27, 9:17 PM EDTSevere Thunderstorm WarningCLEMcKean, Warren58 min

Nearby

Tornado Warnings in Pennsylvania, 1993Every tornado warning in 1993Tornadoes 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.