Alert archive / Pennsylvania / Tornado Warnings in 1994

Tornado Warning 1, NWS Pittsburgh, PA

May 24, 1994Butler County, Pennsylvania

NWS Pittsburgh, PA issued this tornado warning at May 24, 1994, 5:25 PM EDT for Butler County, Pennsylvania. It was in force for 35 min.

The area

The counties it named.

The facts

Issued
May 24, 1994, 5:25 PM EDT (21:25 UTC)
Expired
May 24, 1994, 6:00 PM EDT
In force
35 min
Issued by
NWS Pittsburgh, PA
Area
Whole counties

County Butler County, PA

The nearest sounding before it

Pittsburgh, PA (KPIT), launched 12:00Z, 9.4 hours before the alert went out and 58 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 1994-05-24Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 1994-05-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -11 square meters per square second.193958Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
2513 m above ground
0-6 km bulk shear
36 kt
0-1 km storm-relative helicity
-11 m²/s²
0-3 km storm-relative helicity
58 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KPIT 242127
TORPIT
PAC019-242200-
 
BULLETIN - EBS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE PITTSBURGH PA
525 PM EDT TUE MAY 24 1994
 
THE NATIONAL WEATHER SERVICE IN PITTSBURGH HAS ISSUED A
TORNADO WARNING EFFECTIVE UNTIL  600 PM EDT
FOR THE FOLLOWING LOCATION...
 
IN WEST PENNSYLVANIA
 
   ...BUTLER COUNTY
 
RADAR SHOWED A POSSIBLE TORNADO IN SOUTHERN BUTLER COUNTY NEAR ROUTE 8
AND SANDY HILL ROAD...THIS STORM IS MOVING NORTHEAST AROUND 20 MPH.
TREES HAVE BEEN REPORTED DOWN IN THIS AREA.
 
 
THIS IS A DANGEROUS STORM SITUATION.  ACT QUICKLY.  IF YOU ARE
IN THE PATH OF THIS TORNADO MOVE TO A SHELTER BELOW GROUND IF
AVAILABLE.  OTHERWISE...GO TO A SMALL INTERIOR ROOM ON THE LOWEST
@FLOOR POSSIBLE.  AVOID WINDOWS.  ABANDON CARS AND MOBILE HOMES
FOR A REINFORCED BUILDING OR GET INTO A DITCH OR CULVERT.
 
 
 
&

The office that day

Everything else NWS Pittsburgh, PA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 24, 4:53 PM EDTSevere Thunderstorm WarningPBZAllegheny, Beaver, Washington52 min
May 24, 5:10 PM EDTSevere Thunderstorm WarningPBZButler, Westmoreland65 min
May 24, 5:37 PM EDTSevere Thunderstorm WarningPBZArmstrong68 min
May 24, 6:22 PM EDTSevere Thunderstorm WarningPBZBeaver, Washington68 min
May 24, 6:22 PM EDTSevere Thunderstorm WarningPBZAllegheny68 min
May 24, 6:38 PM EDTSevere Thunderstorm WarningPBZBlair, Cambria67 min
May 24, 6:38 PM EDTSevere Thunderstorm WarningPBZSomerset67 min
May 24, 7:27 PM EDTSevere Thunderstorm WarningPBZWashington63 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.