Alert archive / Pennsylvania / Flash Flood Warnings in 1993

Flash Flood Warning 19, NWS Pittsburgh, PA

August 11, 1993Bedford County, Pennsylvania

NWS Pittsburgh, PA issued this flash flood warning at Aug 11, 1993, 3:48 PM EDT for Bedford County, Pennsylvania. It was in force for 57 min.

The area

The counties it named.

The facts

Issued
Aug 11, 1993, 3:48 PM EDT (19:48 UTC)
Expired
Aug 11, 1993, 4:45 PM EDT
In force
57 min
Issued by
NWS Pittsburgh, PA
Area
Whole counties

County Bedford County, PA

The nearest sounding before it

Washington/Dulle, VA (KIAD), launched 12:00Z, 7.8 hours before the alert went out and 150 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 1993-08-11Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 1993-08-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 56 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
NaN m above ground
0-6 km bulk shear
20 kt
0-1 km storm-relative helicity
56 m²/s²
0-3 km storm-relative helicity
67 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

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
Aug 11, 3:15 PM EDTSevere Thunderstorm WarningPBZBedford60 min
Aug 11, 4:45 PM EDTFlash Flood WarningPBZBedford75 min
Aug 11, 5:25 PM EDTFlash Flood WarningPBZBlair95 min

Nearby

Flash Flood Warnings in Pennsylvania, 1993Every flash flood warning in 1993

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.