Alert archive / Virginia / Severe Thunderstorm Warnings in 1993

Severe Thunderstorm Warning 15, NWS Blacksburg, VA

May 12, 1993Halifax County, Virginia

NWS Blacksburg, VA issued this severe thunderstorm warning at May 12, 1993, 7:39 PM EDT for Halifax County, Virginia. It was in force for 36 min.

The area

The counties it named.

The facts

Issued
May 12, 1993, 7:39 PM EDT (23:39 UTC)
Expired
May 12, 1993, 8:15 PM EDT
In force
36 min
Issued by
NWS Blacksburg, VA
Area
Whole counties

County Halifax County, VA

The nearest sounding before it

Greensboro/Hi Pt, NC (KGSO), launched 12:00Z, 11.7 hours before the alert went out and 115 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 1993-05-12Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 32 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 1993-05-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -23 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
32 J/kg
Mixed-layer CIN
-125 J/kg
Mixed-layer LCL
1402 m above ground
0-6 km bulk shear
16 kt
0-1 km storm-relative helicity
-23 m²/s²
0-3 km storm-relative helicity
16 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.

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

In the hours before

Special weather statement, May 12, 2:36 PM EDT, 5 hours 3 minutes before
VAZ008-009-121900-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE LYNCHBURG VA
230 PM EDT WED MAY 12 1993

...SCATTERED THUNDERSTORMS ARE BLOOMING AROUND WESTERN VIRGINIA...

AT 215 PM EDT...WEATHER RADAR SHOWED SEVERAL AREA OF SHOWERS AND
THUNDERSTORMS IN WESTERN VIRGINIA. A CLUSTER OF SHOWERS AND
THUNDERSTORMS WERE LOCATED IN HIGHLAND AND BATH COUNTIES. A SECOND
CLUSTER OF STORMS WERE LOCATED IN PATRICK...HENRY AND PITTSLYVANIA
COUNTIES. THE STRONGEST THUNDERSTORMS WERE LOCATED JUST SOUTHWEST OF
STUART IN SOUTHCENTRAL PATRICK COUNTY...NEAR LEATHERWOOD IN NORTHEAST
HENRY COUNTY...NEAR SWANSONVILLE IN WEST CENTRAL PITTSLYVANIA COUNTY
AND NEAR THE JUNCTION OF GREENBRIER...ALLEGHANY AND BATH COUNTIES.
THE STORMS WERE MOVING TO THE WEST AT 15 MPH.

PEOPLE IN THE PATH OF THESE STORMS CAN EXPECT HEAVY DOWNPOURS...
DANGEROUS LIGHTNING..STRONG GUSTY AND SMALL HAIL. BE PREPARED TO TAKE
COVER IF THREATENING WEATHER COMES YOUR WAY.

MEADOWS
Special weather statement, May 12, 2:43 PM EDT, 4 hours 56 minutes before
VAZ008-009-121900-

SPECIAL WEATHER STATEMENT...CORRECTION
NATIONAL WEATHER SERVICE LYNCHBURG VA
230 PM EDT WED MAY 12 1993

...SCATTERED THUNDERSTORMS ARE BLOOMING AROUND WESTERN VIRGINIA...

AT 215 PM EDT...WEATHER RADAR SHOWED SEVERAL AREA OF SHOWERS AND
THUNDERSTORMS IN WESTERN VIRGINIA. A CLUSTER OF SHOWERS AND
THUNDERSTORMS WERE LOCATED IN HIGHLAND AND BATH COUNTIES. A SECOND
CLUSTER OF STORMS WERE LOCATED IN PATRICK...HENRY AND PITTSLYVANIA
COUNTIES. THE STRONGEST THUNDERSTORMS WERE LOCATED JUST SOUTHWEST OF
STUART IN SOUTHCENTRAL PATRICK COUNTY...NEAR LEATHERWOOD IN NORTHEAST
HENRY COUNTY...NEAR SWANSONVILLE IN WEST CENTRAL PITTSLYVANIA COUNTY
AND NEAR THE JUNCTION OF GREENBRIER...ALLEGHANY AND BATH COUNTIES.
THE STORMS WERE MOVING TO THE EAST AT 15 MPH.

PEOPLE IN THE PATH OF THESE STORMS CAN EXPECT HEAVY DOWNPOURS...
DANGEROUS LIGHTNING..STRONG GUSTY WINDS AND SMALL HAIL. BE PREPARED
TO TAKE COVER IF THREATENING WEATHER COMES YOUR WAY.

MEADOWS
Special weather statement, May 12, 4:30 PM EDT, 3 hours 9 minutes before
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Special weather statement, May 12, 4:33 PM EDT, 3 hours 6 minutes before
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Special weather statement, May 12, 6:05 PM EDT, 1 hour 34 minutes before
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Special weather statement, May 12, 6:07 PM EDT, 1 hour 32 minutes before
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<body>
  <main class="wrap">
    <section class="card" role="status" aria-live="polite">
      <div class="status" id="status">Temporary Notice</div>
      <h1 id="headline">This service is currently unavailable.</h1>
      <p id="message1">
        The site you requested is temporarily down for maintenance or an unexpected outage.
      </p>
      <p id="message2">
        Please try again in a few minutes.
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        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
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The office that day

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

IssuedProductOfficeCountiesLasted
May 12, 3:26 PM EDTSevere Thunderstorm WarningRNKPittsylvania, City of Danville2 hr
May 12, 7:39 PM EDTSevere Thunderstorm WarningRNKCharles City36 min

Nearby

Severe Thunderstorm Warnings in Virginia, 1993Every severe thunderstorm 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.