Alert archive / Virginia / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 113, NWS Baltimore/Washington

June 27, 1998Augusta County, City of Staunton, Virginia

NWS Baltimore/Washington issued this severe thunderstorm warning at Jun 27, 1998, 11:06 PM EDT for Augusta County, City of Staunton, Virginia. It was in force for 49 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
Jun 27, 1998, 11:06 PM EDT (03:06 UTC)
Expired
Jun 27, 1998, 11:55 PM EDT
In force
49 min
Issued by
NWS Baltimore/Washington
Area
Whole counties

Counties Augusta County, VA, City of Staunton, VA

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Jun 27, 9:00 PM EDTSevere Thunderstorm WatchSPC5 hr

The nearest sounding before it

Roanoke, VA (KRNK), launched 00:00Z, 3.1 hours before the alert went out and 112 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 00:00Z on 1998-06-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1567 joules per kilogram.LCLEL10008507005003002001001 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 00:00Z on 1998-06-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 28 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
1567 J/kg
Mixed-layer CIN
-3 J/kg
Mixed-layer LCL
1364 m above ground
0-6 km bulk shear
16 kt
0-1 km storm-relative helicity
28 m²/s²
0-3 km storm-relative helicity
102 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.8

Open this sounding in Storm Lab

The text

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

610 
WUUS1 KWBC 280308 RRA
SVRWBC
VAC015-165-660-790-820-280355-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BALTIMORE/WASHINGTON
1106 PM EDT SAT JUN 27 1998

THE NATIONAL WEATHER SERVICE IN STERLING VA HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  AUGUSTA COUNTY IN WESTERN VIRGINIA
  CITY OF STAUNTON IN WESTERN VIRGINIA
  CITY OF WAYNESBORO IN WESTERN VIRGINIA
  ROCKINGHAM COUNTY IN NORTHWESTERN VIRGINIA
  CITY OF HARRISONBURG IN NORTHWESTERN VIRGINIA

* UNTIL 1155 PM EDT

* AT 1105 PM EDT...NATIONAL WEATHER SERVICE DOPPLER WEATHER RADAR
  INDICATED SEVERE THUNDERSTORMS OVER PENDLETON AND HIGHLAND COUNTIES...
  MOVING EAST AT 35 MPH.

* THE SEVERE THUNDERSTORMS WILL AFFECT...
  THE CENTRAL SHENANDOAH VALLEY

A LINE OF SEVERE THUNDERSTORMS WITH A HIGH POTENTIAL FOR PRODUCING
DAMAGING WINDS WILL MOVE ACROSS THE CENTRAL SHENANDOAH VALLEY.

SEEK SAFETY INDOORS AWAY FROM WINDOWS. IF CAUGHT OUTSIDE...DO NOT
STAND UNDERNEATH TREES OR OTHER ISOLATED OBJECTS. THESE ATTRACT
LIGHTNING. DO NOT DRIVE INTO AREAS WHERE WATER COVERS THE ROAD.

STAY TUNED TO TV...RADIO AND NOAA WEATHER RADIO FOR UPDATES AND
WARNINGS.

ADS

The office that day

Everything else NWS Baltimore/Washington issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 27, 10:30 PM EDTSevere Thunderstorm WarningLWXHighland45 min
Jun 27, 11:06 PM EDTSevere Thunderstorm WarningLWXCity of Waynesboro49 min
Jun 27, 11:06 PM EDTSevere Thunderstorm WarningLWXRockingham, City of Harrisonburg49 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.