Alert archive / Virginia / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 12, NWS Charleston, WV

February 17, 1998Buchanan County, Virginia

NWS Charleston, WV issued this severe thunderstorm warning at Feb 17, 1998, 12:13 PM EST for Buchanan County, Virginia. It was in force for 32 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Feb 17, 1998, 12:13 PM EST (17:13 UTC)
Expired
Feb 17, 1998, 12:45 PM EST
In force
32 min
Issued by
NWS Charleston, WV
Area
Whole counties

County Buchanan County, VA

The radar

The Jackson,KY radar (KJKL), 118 km from the middle of the area, began a volume at 17:17 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Roanoke, VA (KRNK), launched 12:00Z, 5.2 hours before the alert went out and 225 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, Roanoke, VA at 12:00Z on 1998-02-17Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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, Roanoke, VA at 12:00Z on 1998-02-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 728 square meters per square second.1939587897117Sfc1 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
505 m above ground
0-6 km bulk shear
68 kt
0-1 km storm-relative helicity
728 m²/s²
0-3 km storm-relative helicity
863 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 KCRW 171713 RRA
SVRCRW
VAC027-171745-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE CHARLESTON WV
1213 PM EST TUE FEB 17 1998
 
THE NATIONAL WEATHER SERVICE IN CHARLESTON HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 1245 PM EST
FOR PEOPLE IN THE FOLLOWING LOCATION......
 
IN SOUTHWEST VIRGINIA
 
   ...BUCHANAN COUNTY
 
AT 1210 AM...NATIONAL WEATHER SERVICE SHOWED A SEVERE THUNDERSTORM
TRACKING INTO SOUTHERN BUCHANAN COUNTY. THIS STORM HAS HAD HISTORY OF
KNOCKING DOWN TREES ALONG ROUTE 63 IN DICKENSON COUNTY. SMALL HALL ALSO
ACCOMPANIED THE PASSAGE OF THIS STORM. THIS STORM IS MOVING RAPIDLY
NORTH AT 40 MILES AN HOUR.
 
 
<< CALL TO ACTION >> THISJ IS A DANGEROUS STORM.  IF YOU ARE IN ITS
PATH YOU SHOULD PREPARE FOR DAMAGING WIND IN EXCESS OF 55 MPH...
LARGE HAIL...AND DEADLY LIGHTNING. PEOPLE OUTSIDE SHOULD MOVE TO A
SHELTER...PREFERABLY INSIDE A STRONG BUILDING.
 
 
 
&

The office that day

Everything else NWS Charleston, WV issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Feb 17, 11:55 AM ESTSevere Thunderstorm WarningRLXDickenson35 min

Nearby

Severe Thunderstorm Warnings in Virginia, 1998Every severe thunderstorm warning in 1998

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; radar from the NEXRAD Level II archive.