Alert archive / Virginia / Severe Thunderstorm Warnings in 2000

Severe Thunderstorm Warning 8, NWS Blacksburg, VA

April 17, 2000Franklin County, Virginia

NWS Blacksburg, VA issued this severe thunderstorm warning at Apr 17, 2000, 1:11 PM EDT for Franklin County, Virginia. It was in force for 49 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 17, 2000, 1:11 PM EDT (17:11 UTC)
Expired
Apr 17, 2000, 2:00 PM EDT
In force
49 min
Issued by
NWS Blacksburg, VA
Area
Whole counties

County Franklin County, VA

What was reported inside it

TimeReportWhereRemark
Apr 17, 1:13 PM EDTHail 0.75Callaway, VA
Apr 17, 2:05 PM EDTThunderstorm WindPenhook, VA
Apr 17, 2:10 PM EDTHail 0.88Henry, VA

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 nearest sounding before it

Roanoke, VA (KRNK), launched 12:00Z, 5.2 hours before the alert went out and 41 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 2000-04-17Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 6 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, Roanoke, VA at 12:00Z on 2000-04-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 85 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
6 J/kg
Mixed-layer CIN
-138 J/kg
Mixed-layer LCL
1222 m above ground
0-6 km bulk shear
25 kt
0-1 km storm-relative helicity
85 m²/s²
0-3 km storm-relative helicity
116 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.

391 
WUUS51 KRNK 171712
SVRRNK
TTAA00 KRNK 171712

VAC067-171800-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BLACKSBURG VA
111 PM EDT MON APR 17 2000

THE NATIONAL WEATHER SERVICE IN BLACKSBURG HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHEASTERN FRANKLIN COUNTY IN WEST CENTRAL VIRGINIA...

* UNTIL 200 PM EDT

* AT 111 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM OVER OAK LEVEL...OR ABOUT 10 MILES NORTHWEST OF
  MARTINSVILLE CITY...MOVING NORTHEAST AT 20 MPH. HAIL IN EXCESS OF 
  QUARTER SIZE IS LIKELY.

SOME LOCATIONS THREATENED THROUGH 200 PM EDT INCLUDE
  OAK LEVEL...
  SNOW CREEK...
  SONTAG...
  ROCKY MOUNT...
  PENHOOK...

<<CALL TO ACTION>>THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH
YOU SHOULD PREPARE FOR DAMAGING WINDS IN EXCESS OF 55 MPH...LARGE
HAIL...AND DEADLY LIGHTNING. PEOPLE OUTSIDE SHOULD MOVE TO A
SHELTER...PREFERABLY INSIDE A STRONG BUILDING BUT AWAY FROM WINDOWS.

REPORT SEVERE WEATHER TO THE NEAREST LAW ENFORCEMENT AGENCY.

NNNN

MTE

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 17, 1:06 PM EDTSevere Thunderstorm WarningRNKPatrick39 min
Apr 17, 1:18 PM EDTSevere Thunderstorm WarningRNKMontgomery42 min
Apr 17, 1:39 PM EDTFlash Flood WarningRNKPatrick6 hr
Apr 17, 1:50 PM EDTSevere Thunderstorm WarningRNKFranklin, Patrick40 min
Apr 17, 2:00 PM EDTSevere Thunderstorm WarningRNKMontgomery30 min
Apr 17, 2:05 PM EDTSevere Thunderstorm WarningRNKCharlotte40 min
Apr 17, 2:29 PM EDTSevere Thunderstorm WarningRNKFranklin46 min
Apr 17, 2:37 PM EDTSevere Thunderstorm WarningRNKPittsylvania38 min
Apr 17, 2:40 PM EDTFlash Flood WarningRNKFranklin6 hr
Apr 17, 2:42 PM EDTSevere Thunderstorm WarningRNKCharlotte48 min
Apr 17, 2:43 PM EDTFlash Flood WarningRNKMontgomery6 hr
Apr 17, 3:02 PM EDTSevere Thunderstorm WarningRNKBedford, Campbell43 min
Apr 17, 3:13 PM EDTSevere Thunderstorm WarningRNKPittsylvania47 min
Apr 17, 3:23 PM EDTTornado WarningRNKCampbell37 min
Apr 17, 3:45 PM EDTSevere Thunderstorm WarningRNKCampbell, Pittsylvania45 min
Apr 17, 4:10 PM EDTTornado WarningRNKCharlotte35 min
Apr 17, 4:36 PM EDTSevere Thunderstorm WarningRNKBedford39 min
Apr 17, 5:03 PM EDTSevere Thunderstorm WarningRNKWythe42 min
Apr 17, 5:33 PM EDTSevere Thunderstorm WarningRNKCarroll, Patrick42 min
Apr 17, 5:58 PM EDTFlash Flood WarningRNKRoanoke, City of Roanoke, City of Salem92 min
Apr 17, 6:21 PM EDTSevere Thunderstorm WarningRNKCarroll, Floyd24 min
Apr 17, 6:29 PM EDTSevere Thunderstorm WarningRNKFranklin, Patrick46 min
Apr 17, 7:09 PM EDTSevere Thunderstorm WarningRNKPatrick36 min
Apr 17, 7:37 PM EDTSevere Thunderstorm WarningRNKFranklin23 min

Nearby

Severe Thunderstorm Warnings in Virginia, 2000Every severe thunderstorm warning in 2000

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.