Alert archive / Virginia / Severe Thunderstorm Warnings in 1995

Severe Thunderstorm Warning 21, NWS Blacksburg, VA

May 18, 1995Botetourt County, Virginia

NWS Blacksburg, VA issued this severe thunderstorm warning at May 18, 1995, 12:33 PM EDT for Botetourt County, Virginia. It was in force for 42 min.

The area

The counties it named.

The facts

Issued
May 18, 1995, 12:33 PM EDT (16:33 UTC)
Expired
May 18, 1995, 1:15 PM EDT
In force
42 min
Issued by
NWS Blacksburg, VA
Area
Whole counties

County Botetourt County, VA

The nearest sounding before it

Greensboro/Hi Pt, NC (KGSO), launched 12:00Z, 4.6 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, Greensboro/Hi Pt, NC at 12:00Z on 1995-05-18Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 45 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 12:00Z on 1995-05-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 166 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
45 J/kg
Mixed-layer CIN
-271 J/kg
Mixed-layer LCL
1716 m above ground
0-6 km bulk shear
43 kt
0-1 km storm-relative helicity
166 m²/s²
0-3 km storm-relative helicity
274 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.1

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KRNK 181635
SVRRNK
VAC023-181715-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BLACKSBURG VA
1233 PM EDT THU MAY 18 1995
 
THE NATIONAL WEATHER SERVICE IN BLACKSBURG HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  115 PM EDT
FOR THE FOLLOWING COUNTY...
 
IN WEST CENTRAL VIRGINIA
 
   ...BOTETOURT COUNTY
 
NATIONAL WEATHER SERVICE DOPPLER RADAR AT BLACKSBURG INDICATED A SEVERE
THUNDERSTORM OVER EASTERN CRAIG COUNTY...APPROACHING BOTETOURT COUNTY.
THE MOVEMENT OF THIS STORM WILL TAKE IT ACROSS THE COUNTY LINE INTO
BOTETOURT...5 MILES WEST OF FINCASTLE ... MOVING EAST AT 45 MPH. THE
STORM WILL AFFECT DALEVILLE... FINCASTLE AND EAGLE ROCK BY 12:45 PM.
 
 
 
SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 55
MPH...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN.
FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR
OF YOUR HOME OR BUSINESS.  HEAVY RAINS FLOOD ROA"DS QUICKLY SO
DON'T DRIVE INTO AREAS WHERE WATER COVERS THE ROAD.
 
 
STEWART/GILLEN

The office that day

Everything else NWS Blacksburg, VA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 18, 12:48 PM EDTSevere Thunderstorm WarningRNKBedford42 min
May 18, 12:53 PM EDTSevere Thunderstorm WarningRNKRockbridge37 min
May 18, 1:01 PM EDTSevere Thunderstorm WarningRNKAmherst44 min
May 18, 1:35 PM EDTSevere Thunderstorm WarningRNKBuckingham40 min
May 18, 3:28 PM EDTSevere Thunderstorm WarningRNKHenry32 min
May 18, 4:03 PM EDTSevere Thunderstorm WarningRNKHenry27 min
May 18, 4:39 PM EDTSevere Thunderstorm WarningRNKPatrick51 min
May 18, 5:11 PM EDTSevere Thunderstorm WarningRNKHenry49 min
May 18, 5:14 PM EDTSevere Thunderstorm WarningRNKPittsylvania46 min
May 18, 5:55 PM EDTSevere Thunderstorm WarningRNKPittsylvania50 min
May 18, 6:50 PM EDTSevere Thunderstorm WarningRNKTazewell55 min
May 18, 7:30 PM EDTSevere Thunderstorm WarningRNKFloyd, Montgomery45 min

Nearby

Severe Thunderstorm Warnings in Virginia, 1995Every severe thunderstorm warning in 1995

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.