Alert archive / Virginia / Severe Thunderstorm Warnings in 1990

Severe Thunderstorm Warning 4, NWS Morristown, TN

May 1, 1990Dickenson County, Wise County, Virginia

NWS Morristown, TN issued this severe thunderstorm warning at May 1, 1990, 2:36 PM EDT for Dickenson County, Wise County, Virginia. It was in force for 39 min.

The area

The counties it named.

The facts

Issued
May 1, 1990, 2:36 PM EDT (18:36 UTC)
Expired
May 1, 1990, 3:15 PM EDT
In force
39 min
Issued by
NWS Morristown, TN
Area
Whole counties

Counties Dickenson County, VA, Wise 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

Huntington/Tri S, WV (KHTS), launched 12:00Z, 6.6 hours before the alert went out and 147 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, Huntington/Tri S, WV at 12:00Z on 1990-05-01Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 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, Huntington/Tri S, WV at 12:00Z on 1990-05-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 56 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
704 m above ground
0-6 km bulk shear
52 kt
0-1 km storm-relative helicity
56 m²/s²
0-3 km storm-relative helicity
41 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 KTRI 011836
SVRTRI
VAC051-195-011915-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BRISTOL TN
236 PM EDT TUE MAY 1 1990
 
THE NATIONAL WEATHER SERVICE IN BRISTOL HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  315 PM EDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN SOUTHWEST VIRGINIA
 
   ...DICKENSON COUNTY...NORTHERN WISE COUNTY
 
AT 230 PM WEATHER RADAR INDICATED A SEVERE THUNDERSTORM IN NORTHERN
WISE COUNTY VIRGINIA. THIS STORM WAS MOVING EAST AT 40 MILES AN HOUR
AND WILL BE MOVING INTO WESTERN DICKENSON COUNTY BY 245 PM.
 
 
IF YOU ARE CAUGHT OUTSIDE...SEEK SHELTER FROM THE WEATHER IN A
STRONG BUILDING.  DAMAGING WIND...LARGEa HAIL...VERY HEAVY RAIN...
AND DEADLY LIGHTNING ARE ALL POSSIBLE IN SEVERE THUNDERSTORMS.
STAY INSIDE AWAY FROM WINDOWS UNTIL THE STORM HAS PASSED.

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 1, 1:35 PM EDT, 1 hour 1 minute before
TNZ002-TNZ004-011830-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE KNOXVILLE TN
133 PM EDT TUE MAY 1 1990

AT 1:25 PM EDT/12:25 PM EDT A LINE OF THUNDERSTORMS WAS LOCATED FROM
15 MILES WEST OF COOKEVILLE TO JELLICO. THE HEAVIEST THUNDERSTORMS
IN THIS LINE WERE LOCATED IN THE SOUTHWEST CORNER OF FENTRESS COUNTY
AND 10 MILES SOUTH OF ONEIDA.

THESE THUNDERSTORMS ARE MOVING RAPIDLY EAST AT 40 MPH. PERSONS IN
FENTRESS AND CAMPBELL COUNTIES SHOULD BE ALERT FOR THE POSSIBILITY
OF DANGEROUS LIGHTNING, SMALL HAIL AND GUSTY WINDS AS THESE STORMS
MOVE THROUGH THESE COUNTIES DURING THE NEXT HOUR.
Special weather statement, May 1, 1:41 PM EDT, 55 minutes before
TNZ002-TNZ004-011830-

SPECIAL WEATHER STATEMENT CORRECTED
NATIONAL WEATHER SERVICE KNOXVILLE TN
133 PM EDT TUE MAY 1 1990

AT 1:25 PM EDT/12:25 PM CDT A LINE OF THUNDERSTORMS WAS LOCATED FROM
15 MILES WEST OF COOKEVILLE TO JELLICO. THE HEAVIEST THUNDERSTORMS
IN THIS LINE WERE LOCATED IN THE SOUTHWEST CORNER OF FENTRESS COUNTY
AND 10 MILES SOUTH OF ONEIDA.

THESE THUNDERSTORMS ARE MOVING RAPIDLY EAST AT 40 MPH. PERSONS IN
FENTRESS AND CAMPBELL COUNTIES SHOULD BE ALERT FOR THE POSSIBILITY
OF DANGEROUS LIGHTNING, SMALL HAIL AND GUSTY WINDS AS THESE STORMS
MOVE THROUGH THESE COUNTIES DURING THE NEXT HOUR.

The office that day

Everything else NWS Morristown, TN issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 1, 3:05 PM EDTSevere Thunderstorm WarningMRXRussell25 min
May 1, 3:22 PM EDTSevere Thunderstorm WarningMRXScott38 min

Nearby

Severe Thunderstorm Warnings in Virginia, 1990Every severe thunderstorm warning in 1990

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.