Alert archive / Pennsylvania / Tornado Warnings in 1994

Tornado Warning 4, NWS Cleveland, OH

June 11, 1994Forest County, Pennsylvania

NWS Cleveland, OH issued this tornado warning at Jun 11, 1994, 4:50 PM EDT for Forest County, Pennsylvania. It was in force for 55 min.

The area

The counties it named.

The facts

Issued
Jun 11, 1994, 4:50 PM EDT (20:50 UTC)
Expired
Jun 11, 1994, 5:45 PM EDT
In force
55 min
Issued by
NWS Cleveland, OH
Area
Whole counties

County Forest County, PA

The nearest sounding before it

Pittsburgh, PA (KPIT), launched 12:00Z, 8.8 hours before the alert went out and 142 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 12:00Z on 1994-06-11Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 442 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 12:00Z on 1994-06-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 85 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
442 J/kg
Mixed-layer CIN
-89 J/kg
Mixed-layer LCL
1002 m above ground
0-6 km bulk shear
32 kt
0-1 km storm-relative helicity
85 m²/s²
0-3 km storm-relative helicity
97 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.1

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KERI 112057
TORERI
PAC053-112145-
 
BULLETIN - EBS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE ERIE PA
450 PM EDT SAT JUN 11 1994
 
THE NATIONAL WEATHER SERVICE IN ERIE HAS ISSUED A
TORNADO WARNING EFFECTIVE UNTIL  545 PM EDT
FOR THE FOLLOWING LOCATION...
 
IN NORTHWEST PENNSYLVANIA
 
   ...FOREST COUNTY...WARREN COUNTY
 
AT 450 PM EDT ERIE WEATHER RADAR AND DOPPLER RADAR IN PITTSBURGH
INDICATED A POSSIBLE TORNADO NORTHEAST OF TIONESTA IN FOREST COUNTY...
HEADING INTO SOUTHERN WARREN COUNTY NEAR TIDIOUTE.  THIS STORM IS MOVING
NORTHEAST AT 25 MPH.
 
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 INTERIOR ROOM
SUCH AS A CLOSET ON THE LOWEST FLOOR.  USE BLANKETS...PILLOWS...
OR CUSHIONS TO COVER YOUR BODY.  AVOID WINDOWS.
 
STRONG GUSTY WINDS IN EXCESS OF 55 MPH...LARGE HAIL...LOCALLY
HEAVY RAIN AND FREQUENT DEADLY LIGHTNING ARE ALSO POSSIBLE WITH
THIS STORM.
 
BELK/TJP/WELLS

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 11, 3:22 PM EDTSevere Thunderstorm WarningCLECrawford68 min
Jun 11, 4:15 PM EDTTornado WarningCLECrawford30 min
Jun 11, 4:28 PM EDTSevere Thunderstorm WarningCLEErie47 min
Jun 11, 4:43 PM EDTSevere Thunderstorm WarningCLEForest62 min
Jun 11, 6:39 PM EDTSevere Thunderstorm WarningCLEVenango66 min

Nearby

Tornado Warnings in Pennsylvania, 1994Every tornado warning in 1994Tornadoes 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.