Alert archive / West Virginia / Severe Thunderstorm Warnings in 1999

Severe Thunderstorm Warning 21, NWS Charleston, WV

April 23, 1999Harrison County, West Virginia

NWS Charleston, WV issued this severe thunderstorm warning at Apr 23, 1999, 2:03 PM EDT for Harrison County, West Virginia. It was in force for 47 min. 3 reports came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued
Apr 23, 1999, 2:03 PM EDT (18:03 UTC)
Expired
Apr 23, 1999, 2:50 PM EDT
In force
47 min
Issued by
NWS Charleston, WV
Area
Whole counties

County Harrison County, WV

What was reported inside it

TimeReportWhereRemark
Apr 23, 2:15 PM EDTHail 0.75Clarksburg, WV
Apr 23, 2:28 PM EDTHail 1Clarksburg, WV
Apr 23, 2:30 PM EDTHail 1.5Bridgeport, WVHail accumulated to a depth of 3 inches.

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.

The watch it was issued in

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

IssuedProductOfficeLasted
Apr 23, 1:45 PM EDTSevere Thunderstorm WatchSPC5 hr

The nearest sounding before it

Pittsburgh, PA (KPIT), launched 12:00Z, 6.1 hours before the alert went out and 127 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, Pittsburgh, PA at 12:00Z on 1999-04-23Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1 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, Pittsburgh, PA at 12:00Z on 1999-04-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 84 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
1 J/kg
Mixed-layer CIN
-41 J/kg
Mixed-layer LCL
569 m above ground
0-6 km bulk shear
51 kt
0-1 km storm-relative helicity
84 m²/s²
0-3 km storm-relative helicity
188 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 231803 RRA
SVRCRW
WVC033-231850-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE CHARLESTON WV
203 PM EDT FRI APR 23 1999

THE NATIONAL WEATHER SERVICE IN CHARLESTON HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  HARRISON COUNTY WEST VIRGINIA.

* UNTIL 250 PM EDT.

* AT 201 PM EDT... NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  A SEVERE THUNDERSTORM 18 MILES WEST OF CLARKSBURG OR 7 MILES
  NORTHWEST OF SALEM... MOVING EAST AT 50 MPH.

* SOME COMMUNITIES WHICH MAY BE AFFECTED BY THIS STORM ARE...
   SALEM.
   WALLACE.
   BROWN.
   WOLF SUMMITT.
   DOLA.
   CLARKSBURG.
   BRIDGEPORT.

DAMAGING WINDS AND LARGE HAIL ARE LIKELY.  GO INSIDE A STURDY
BUILDING AND STAY AWAY FROM WINDOWS!

PLEASE REPORT ANY HAIL OR STRONG WINDS BY CALLING TOLL FREE AT
877-633-6772.

.END/JFD

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 23, 1:18 PM EDTSevere Thunderstorm WarningRLXTyler47 min
Apr 23, 1:46 PM EDTSevere Thunderstorm WarningRLXDoddridge49 min
Apr 23, 2:19 PM EDTTornado WarningRLXMingo51 min
Apr 23, 2:23 PM EDTSevere Thunderstorm WarningRLXBarbour47 min
Apr 23, 2:52 PM EDTTornado WarningRLXWyoming48 min
Apr 23, 2:56 PM EDTSevere Thunderstorm WarningRLXRandolph34 min
Apr 23, 3:05 PM EDTSevere Thunderstorm WarningRLXMcDowell50 min
Apr 23, 3:32 PM EDTSevere Thunderstorm WarningRLXUpshur33 min
Apr 23, 3:41 PM EDTSevere Thunderstorm WarningRLXRandolph34 min
Apr 23, 4:16 PM EDTSevere Thunderstorm WarningRLXPocahontas34 min
Apr 23, 5:37 PM EDTSevere Thunderstorm WarningRLXBarbour38 min
Apr 23, 6:34 PM EDTSevere Thunderstorm WarningRLXFayette31 min

Nearby

Severe Thunderstorm Warnings in West Virginia, 1999Every severe thunderstorm warning in 1999

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.