Alert archive / Virginia / Flash Flood Warnings in 1992

Flash Flood Warning 14, NWS Wakefield, VA

November 23, 1992Nelson County, Virginia

NWS Wakefield, VA issued this flash flood warning at Nov 23, 1992, 12:14 AM EST for Nelson County, Virginia. It was in force for 46 min.

The area

The counties it named.

The facts

Issued
Nov 23, 1992, 12:14 AM EST (05:14 UTC)
Expired
Nov 23, 1992, 1:00 AM EST
In force
46 min
Issued by
NWS Wakefield, VA
Area
Whole counties

County Nelson County, VA

The nearest sounding before it

Washington/Dulle, VA (KIAD), launched 00:00Z, 5.2 hours before the alert went out and 183 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 1992-11-23Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 426 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 1992-11-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 281 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
426 J/kg
Mixed-layer CIN
-9 J/kg
Mixed-layer LCL
599 m above ground
0-6 km bulk shear
48 kt
0-1 km storm-relative helicity
281 m²/s²
0-3 km storm-relative helicity
320 m²/s²
Significant tornado parameter
0.7
Supercell composite
3.5

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 Wakefield, VA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Nov 23, 12:14 AM ESTSevere Thunderstorm WarningAKQNelson46 min
Nov 23, 12:52 AM ESTFlash Flood WarningAKQRockbridge3 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.