Alert archive / Virginia / Flash Flood Warnings in 1992

Flash Flood Warning 8, NWS Wakefield, VA

April 21, 1992Albemarle County, Virginia

NWS Wakefield, VA issued this flash flood warning at Apr 21, 1992, 10:34 PM EDT for Albemarle County, Virginia. It was in force for 116 min.

The area

The counties it named.

The facts

Issued
Apr 21, 1992, 10:34 PM EDT (02:34 UTC)
Expired
Apr 22, 1992, 12:30 AM EDT
In force
116 min
Issued by
NWS Wakefield, VA
Area
Whole counties

County Albemarle County, VA

The nearest sounding before it

Washington/Dulle, VA (KIAD), launched 00:00Z, 2.6 hours before the alert went out and 144 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 1992-04-22Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 230 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 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 1992-04-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 269 square meters per square second.19395878Sfc1 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
230 J/kg
Mixed-layer CIN
-7 J/kg
Mixed-layer LCL
635 m above ground
0-6 km bulk shear
42 kt
0-1 km storm-relative helicity
269 m²/s²
0-3 km storm-relative helicity
339 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.0

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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 Wakefield, VA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Apr 21, 8:06 PM EDTFlash Flood WarningAKQAlleghany2 hr

Nearby

Flash Flood Warnings in Virginia, 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.