Alert archive / Pennsylvania / Tornado Warnings in 1992

Tornado Warning 4, NWS Pittsburgh, PA

July 13, 1992Armstrong County, Westmoreland County, Pennsylvania

NWS Pittsburgh, PA issued this tornado warning at Jul 13, 1992, 9:44 PM EDT for Armstrong County, Westmoreland County, Pennsylvania. It was in force for 61 min.

The area

The counties it named.

The facts

Issued
Jul 13, 1992, 9:44 PM EDT (01:44 UTC)
Expired
Jul 13, 1992, 10:45 PM EDT
In force
61 min
Issued by
NWS Pittsburgh, PA
Area
Whole counties

Counties Armstrong County, PA, Westmoreland County, PA

The nearest sounding before it

Washington/Dulle, VA (KIAD), launched 00:00Z, 1.7 hours before the alert went out and 252 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, Washington/Dulle, VA at 00:00Z on 1992-07-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 583 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, Washington/Dulle, VA at 00:00Z on 1992-07-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 39 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
583 J/kg
Mixed-layer CIN
-53 J/kg
Mixed-layer LCL
1185 m above ground
0-6 km bulk shear
35 kt
0-1 km storm-relative helicity
39 m²/s²
0-3 km storm-relative helicity
76 m²/s²
Significant tornado parameter
0.2
Supercell composite
3.3

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KPIT 140143
TORPIT
PAC005-129-140245-
 
BULLETIN - EBS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE PITTSBURGH PA
944 PM EDT MON JUL 13 1992
 
THE NATIONAL WEATHER SERVICE IN PITTSBURGH HAS ISSUED A
TORNADO WARNING EFFECTIVE UNTIL 1045 PM EDT
FOR THE FOLLOWING LOCATIONS...
 
IN WEST PENNSYLVANIA
 
   ...ARMSTRONG COUNTY...WESTMORELAND COUNTY
 
AT 940 PM RADAR SHOWED THE DAMAGING STORM WHICH STILL MAY HAVE A
TORNADO MOVING EASTWARD OUT OF ALLEGHENY AND BUTLER COUNTIES INTO
SOUTHERN ARMSTRONG COUNTY. EXTREME NORTHWESTERN WESTMORELAND
COUNTY...THE NEW KENSINGTON AND VANDERGRIFT AREAS...MAY BE HIT BY THIS
STORM.
 
 
IF YOU ARE CAUGHT OUTSIDE...SEEK SHELTER IN A NEARBY REINFORCED
BUILDING.  AS A LAST RESORT...SEEK SHELTER IN A CULVERT...DITCH
OR LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS.

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 13, 8:46 PM EDTTornado WarningPBZAllegheny, Beaver, Butler59 min
Jul 13, 10:25 PM EDTSevere Thunderstorm WarningPBZButler, Clarion2 hr
Jul 13, 10:32 PM EDTTornado WarningPBZIndiana58 min
Jul 13, 10:54 PM EDTSevere Thunderstorm WarningPBZArmstrong, Jefferson96 min
Jul 13, 11:28 PM EDTFlash Flood WarningPBZClearfield, Indiana, Jefferson2 hr
Jul 13, 11:28 PM EDTFlash Flood WarningPBZArmstrong, Butler, Clarion2 hr
Jul 13, 11:28 PM EDTSevere Thunderstorm WarningPBZArmstrong, Butler, Clarion2 hr
Jul 13, 11:28 PM EDTSevere Thunderstorm WarningPBZClearfield, Indiana, Jefferson2 hr
Jul 14, 1:31 AM EDTSevere Thunderstorm WarningPBZCambria, Indiana, Westmoreland59 min

Nearby

Tornado Warnings in Pennsylvania, 1992Every tornado warning in 1992Tornadoes in 1992

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.