Alert archive / Virginia / Tornado Warnings in 1987

Tornado Warning 9, NWS Wakefield, VA

July 26, 1987Louisa County, Virginia

NWS Wakefield, VA issued this tornado warning at Jul 26, 1987, 4:34 PM EDT for Louisa County, Virginia. It was in force for 26 min.

The area

The counties it named.

The facts

Issued
Jul 26, 1987, 4:34 PM EDT (20:34 UTC)
Expired
Jul 26, 1987, 5:00 PM EDT
In force
26 min
Issued by
NWS Wakefield, VA
Area
Whole counties

County Louisa County, VA

The radar

The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.

The nearest sounding before it

Washington/Dulle, VA (KIAD), launched 12:00Z, 8.6 hours before the alert went out and 119 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 12:00Z on 1987-07-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1029 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 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 12:00Z on 1987-07-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 27 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
1029 J/kg
Mixed-layer CIN
-74 J/kg
Mixed-layer LCL
1443 m above ground
0-6 km bulk shear
23 kt
0-1 km storm-relative helicity
27 m²/s²
0-3 km storm-relative helicity
67 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KRIC 262034
TORRIC
VAC109-262100-

BULLETIN - IMMEDIATE BROADCAST REQUESTED/EBS ACTIVATION REQUESTED 
TORNADO WARNING
NATIONAL WEATHER SERVICE RICHMOND VA
434 PM EDT SUN JUL 26 1987

THE NATIONAL WEATHER SERVICE HAS ISSUED A TORNADO WARNING 
EFFECTIVE UNTIL 500 PM EDT FOR PEOPLE IN THE FOLLOWING COUNTY OF

VIRGINIA...LOUISA

A TORNADO WAS REPORTED NEAR MINERAL. TORNADO WAS MOVING
SOUTH SOUTHEAST.

  THIS IS A DANGEROUS STORM.   TAKE COVER IMMEDIATELY.

IF YOU ARE IN THE PATH OF A TORNADO..GO TO A BASEMENT SHELTER OR
A CENTRAL INTERIOR ROOM ON THE LOWEST FLOOR. ABANDON CARS AND
MOBILE HOMES FOR REINFORCED BUILDINGS.

PLEASE REPORT ALL SEVERE WEATHER TO YOUR NEAREST LAW ENFORCEMENT
AGENCY FOR RELAY TO THE NEAREST NATIONAL WEATHER SERVICE OFFICE.

 LINTON

What forecasters said that day

The local office's own words before this tornado 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, Jul 26, 2:27 PM EDT, 2 hours 7 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE RICHMOND VA
230 PM EDT SUN JUL 26 1987

...SEVERE THUNDERSTORM WATCH IN EFFECT UNTIL 900 PM EDT FOR
   THE NORTH HALF OF VIRGINIA...

AT 225 PM WEATHER SERVICE RADAR SHOWED A LINE OF SHOWERS AND
THUNDERSTORM THAT EXTENDED ALONG A LINE THAT EXTENDED FROM THE
ATLANTIC OCEAN THROUGH ATLANTIC CITY NEW JERSEY...THE EASTERN MARYLAND-
PENNSYLVANIA BORDER...THE EASTERN WEST VIRGINIA PANHANDLE...AND
THEN ON INTO OHIO. SOME OF THE THUNDERSTORMS IN THIS LINE WERE
VERY STRONG.

THE LINE WAS MOVING SLOWLY SOUTHEAST. CONDITIONS ARE FAVORABLE
FOR THESE STORMS TO CONTINUE TO STRENGTHEN AS THEY MOVE
THROUGH VIRGINIA THIS AFTERNOON AND EVENING.

JL
Special weather statement, Jul 26, 3:33 PM EDT, 1 hour 1 minute before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE RICHMOND VA
335 PM EDT SUN JUL 26 1987

...SEVERE THUNDERSTORM WATCH IN EFFECT UNTIL 900 PM EDT FOR
   THE NORTH HALF OF VIRGINIA...

AT 330 PM WEATHER SERVICE RADAR SHOWED A LINE OF SHOWERS AND
THUNDERSTORMS THAT EXTENDED ALONG A LINE FROM SOUTHERN
NEW JERSEY THROUGH EXTREME NORTHERN VIRGINIA AND THEN ON INTO
WEST VIRGINIA. SOME OF THE STORMS IN THIS LINE WERE VERY STRONG.
THESE STORMS WERE MOVING SOUTH SOUTHEAST AT 25 MILES AN HOUR.

RADAR ALSO SHOWED THAT SOME THUNDERSTORMS WERE RAPIDLY FORMING
AHEAD OF THIS LINE. ONE SUCH STORM WAS IN ORANGE COUNTY. THIS
STORM WAS ALSO MOVING SOUTH SOUTHEAST AND WILL AFFECT PARTS OF
SPOTSYLVANIA COUNTY AND LOUISA COUNTY DURING THE NEXT HOUR OR SO.

YOU SHOULD KEEP AN EYE ON THE SKY TO THE WEST AND NORTH AND BE
PREPARED TO MOVE INDOORS IF THREATENING WEATHER APPROACHES. WHILE
INDOORS YOU SHOULD KEEP AWAY FROM THE FIREPLACE...HEATING DUCTS...
RADINATORS...AND PLUMBING.

PLEASE REPORT ANY SEVERE WEATHER TO YOUR NEAREST LAW ENFORCEMENT
AGENCY FOR RELAY TO THE NATIONAL WEATHER SERVICE.

JL

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 26, 4:08 PM EDTSevere Thunderstorm WarningAKQCaroline22 min

Nearby

Tornado Warnings in Virginia, 1987Every tornado warning in 1987Tornadoes in 1987

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.