Alert archive / Pennsylvania / Flash Flood Warnings in 1992

Flash Flood Warning 1, NWS Pittsburgh, PA

July 13, 1992Clearfield County, Indiana County, Jefferson County, Pennsylvania

NWS Pittsburgh, PA issued this flash flood warning at Jul 13, 1992, 11:28 PM EDT for Clearfield County, Indiana County, Jefferson County, Pennsylvania. It was in force for 2 hr.

The area

The counties it named.

The facts

Issued
Jul 13, 1992, 11:28 PM EDT (03:28 UTC)
Expired
Jul 14, 1992, 1:30 AM EDT
In force
2 hr
Issued by
NWS Pittsburgh, PA
Area
Whole counties

Counties Clearfield County, PA, Indiana County, PA, Jefferson County, PA

The nearest sounding before it

Washington/Dulle, VA (KIAD), launched 00:00Z, 3.5 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

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, 10:25 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 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

Flash Flood Warnings in Pennsylvania, 1992Every flash flood 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; the sounding from the Mesonet's radiosonde archive.