Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 1992

Severe Thunderstorm Warning 41, NWS Pittsburgh, PA

July 13, 1992Butler County, Clarion County, Pennsylvania

NWS Pittsburgh, PA issued this severe thunderstorm warning at Jul 13, 1992, 10:25 PM EDT for Butler County, Clarion County, Pennsylvania. It was in force for 2 hr. 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, 10:25 PM EDT (02:25 UTC)
Expired
Jul 14, 1992, 12:30 AM EDT
In force
2 hr
Issued by
NWS Pittsburgh, PA
Area
Whole counties

Counties Butler County, PA, Clarion County, PA

What was reported inside it

TimeReportWhereRemark
Jul 13, 11:00 PM EDTThunderstorm Wind 0Butler, 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, 2.4 hours before the alert went out and 303 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

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

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, 9:44 PM EDTTornado WarningPBZArmstrong, Westmoreland61 min
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

Severe Thunderstorm Warnings in Pennsylvania, 1992Every severe thunderstorm warning 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.