Alert archive / Pennsylvania / Flash Flood Warnings in 1992

Flash Flood Warning 16, NWS Pittsburgh, PA

July 24, 1992Bedford County, Somerset County, Pennsylvania

NWS Pittsburgh, PA issued this flash flood warning at Jul 24, 1992, 9:12 AM EDT for Bedford County, Somerset County, Pennsylvania. It was in force for 108 min.

The area

The counties it named.

The facts

Issued
Jul 24, 1992, 9:12 AM EDT (13:12 UTC)
Expired
Jul 24, 1992, 11:00 AM EDT
In force
108 min
Issued by
NWS Pittsburgh, PA
Area
Whole counties

Counties Bedford County, PA, Somerset County, PA

The nearest sounding before it

Washington/Dulle, VA (KIAD), launched 12:00Z, 1.2 hours before the alert went out and 164 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 12:00Z on 1992-07-24Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 404 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 12:00Z on 1992-07-24The 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
404 J/kg
Mixed-layer CIN
-104 J/kg
Mixed-layer LCL
810 m above ground
0-6 km bulk shear
34 kt
0-1 km storm-relative helicity
39 m²/s²
0-3 km storm-relative helicity
88 m²/s²
Significant tornado parameter
0.1
Supercell composite
2.1

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 23, 11:25 PM EDTFlash Flood WarningPBZFayette, Westmoreland3 hr
Jul 24, 7:25 AM EDTFlash Flood WarningPBZFayette, Greene, Washington3 hr
Jul 24, 8:13 AM EDTFlash Flood WarningPBZSomerset107 min
Jul 24, 8:50 AM EDTFlash Flood WarningPBZWestmoreland2 hr
Jul 24, 6:45 PM EDTSevere Thunderstorm WarningPBZBeaver60 min
Jul 24, 7:20 PM EDTSevere Thunderstorm WarningPBZButler55 min
Jul 24, 7:25 AM EDTFlash Flood WarningPBZMarshall, Ohio3 hr

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.