Alert archive / Virginia / Tornado Warnings in 1992

Tornado Warning 8, NWS Blacksburg, VA

November 23, 1992Henry County, Virginia

NWS Blacksburg, VA issued this tornado warning at Nov 23, 1992, 12:25 AM EST for Henry County, Virginia. It was in force for 65 min.

The area

The counties it named.

The facts

Issued
Nov 23, 1992, 12:25 AM EST (05:25 UTC)
Expired
Nov 23, 1992, 1:30 AM EST
In force
65 min
Issued by
NWS Blacksburg, VA
Area
Whole counties

County Henry County, VA

The nearest sounding before it

Greensboro/Hi Pt, NC (KGSO), launched 00:00Z, 5.4 hours before the alert went out and 68 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, Greensboro/Hi Pt, NC at 00:00Z on 1992-11-23Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 576 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, Greensboro/Hi Pt, NC at 00:00Z on 1992-11-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 274 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
576 J/kg
Mixed-layer CIN
-37 J/kg
Mixed-layer LCL
557 m above ground
0-6 km bulk shear
60 kt
0-1 km storm-relative helicity
274 m²/s²
0-3 km storm-relative helicity
354 m²/s²
Significant tornado parameter
1.0
Supercell composite
4.5

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
TTAA00 KROA 230529
TORROA
VAC089-690-230630-
 
BULLETIN - EBS ACTIVATION REQUESTED
TORNADO AND FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE ROANOKE VIRGINIA
1225 AM EST MON NOV 23 1992
 
THE NATIONAL WEATHER SERVICE IN ROANOKE VIRGINIHAS ISSUED A
TORNADO AND FLASH FLOOD WARNING EFFECTIVE UNTIL  130 AM EST
FOR PEOPLE IN THE FOLLOWING LOCATION S...
 
IN SOUTH CENTRAL VIRGINIA
 
   ...SOUTHEASTERN HENRY COUNTY
 
  AND THE INDEPENDENT CITY OF
 
   ...MARTINSVILLE
 
RADAR SHOWED A POSSIBLE TORNADO IN SOUTHEAST HENRY COUNTY SOUTH EAST
OF MARTINSVILLE.
 
IF YOU ARE IN THE PATH OF A TORNADO...THE SAFEST PLACE IS A
BASEMENT.  GET UNDER A WORKBENCH OR PIECE OF STURDY FURNITURE.
IF NO BASEMENT IS AVAILABLE...SEEK SHELTER IN AN INTERIOR ROOM
SUCH AS A CLOSET ON THE LOWEST FLOOR.  USE BLANKETS...PILLOWS...
OR CUSHIONS TO COVER YOUR BODY.  AVOID WINDOWS.
 
 
 
&

Nearby

Tornado Warnings in Virginia, 1992Every tornado warning in 1992Tornadoes 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.