Alert archive / Pennsylvania / Tornado Warnings in 1992

Tornado Warning 3, NWS Pittsburgh, PA

July 13, 1992Allegheny County, Beaver County, Butler County, Pennsylvania

NWS Pittsburgh, PA issued this tornado warning at Jul 13, 1992, 8:46 PM EDT for Allegheny County, Beaver County, Butler County, Pennsylvania. It was in force for 59 min. 1 report came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued: Jul 13, 1992, 8:46 PM EDT (00:46 UTC)
Expired: Jul 13, 1992, 9:45 PM EDT
In force: 59 min
Issued by: NWS Pittsburgh, PA
Area: Whole counties

Counties Allegheny County, PA, Beaver County, PA, Butler County, PA

What was reported inside it

Time	Report	Where	Remark
Jul 13, 9:10 PM EDT	Tornado F0	Allegheny, PA

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in. Storm Data before 1996 records only tornadoes, thunderstorm wind and hail.

The nearest sounding before it

Washington/Dulle, VA (KIAD), launched 00:00Z, 0.8 hours before the alert went out and 300 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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 140047
TORPIT
PAC003-007-019-140145-
 
BULLETIN - EBS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE PITTSBURGH PA
846 PM EDT MON JUL 13 1992
 
THE NATIONAL WEATHER SERVICE IN PITTSBURGH HAS ISSUED A
TORNADO WARNING EFFECTIVE UNTIL  945 PM EDT
FOR THE FOLLOWING LOCATIONS...
 
IN WEST PENNSYLVANIA
 
   ...ALLEGHENY COUNTY...BEAVER COUNTY...BUTLER COUNTY
 
AT 840 PM RADAR SHOWED THE TORNADO BEARING STORMS BEGINNING TO MOVE
OUT OF BEAVER COUNTY...EASTWARD INTO NORTHERN ALLEGHENY COUNTY AND
SOUTHERN BUTLER COUNTY. THERE HAVE BEEN SEVERAL REPORTS OF TORNADOES
AND WIND DAMAGE FROM THESE STORMS.
 
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.

Issued	Product	Office	Counties	Lasted
Jul 13, 9:44 PM EDT	Tornado Warning	PBZ	Armstrong, Westmoreland	61 min
Jul 13, 10:25 PM EDT	Severe Thunderstorm Warning	PBZ	Butler, Clarion	2 hr
Jul 13, 10:32 PM EDT	Tornado Warning	PBZ	Indiana	58 min
Jul 13, 10:54 PM EDT	Severe Thunderstorm Warning	PBZ	Armstrong, Jefferson	96 min
Jul 13, 11:28 PM EDT	Flash Flood Warning	PBZ	Clearfield, Indiana, Jefferson	2 hr
Jul 13, 11:28 PM EDT	Flash Flood Warning	PBZ	Armstrong, Butler, Clarion	2 hr
Jul 13, 11:28 PM EDT	Severe Thunderstorm Warning	PBZ	Armstrong, Butler, Clarion	2 hr
Jul 13, 11:28 PM EDT	Severe Thunderstorm Warning	PBZ	Clearfield, Indiana, Jefferson	2 hr
Jul 14, 1:31 AM EDT	Severe Thunderstorm Warning	PBZ	Cambria, Indiana, Westmoreland	59 min

Nearby

Tornado Warnings in Pennsylvania, 1992 Every tornado warning in 1992 Tornadoes 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.