Alert archive / Virginia / Severe Thunderstorm Warnings in 2000
Severe Thunderstorm Warning 2, NWS Blacksburg, VA
NWS Blacksburg, VA issued this severe thunderstorm warning at Mar 11, 2000, 6:42 PM EST for Halifax County, Pittsylvania County, Virginia. It was in force for 48 min. 2 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
- Mar 11, 2000, 6:42 PM EST (23:42 UTC)
- Expired
- Mar 11, 2000, 7:30 PM EST
- In force
- 48 min
- Issued by
- NWS Blacksburg, VA
- Area
- Whole counties
Counties Halifax County, VA, Pittsylvania County, VA
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Mar 11, 6:57 PM EST | Thunderstorm Wind | South Boston, VA | |
| Mar 11, 7:00 PM EST | Thunderstorm Wind | Gretna, 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, 11.7 hours before the alert went out and 54 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.
- Mixed-layer CAPE
- 53 J/kg
- Mixed-layer CIN
- -13 J/kg
- Mixed-layer LCL
- 610 m above ground
- 0-6 km bulk shear
- 49 kt
- 0-1 km storm-relative helicity
- 437 m²/s²
- 0-3 km storm-relative helicity
- 598 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 WUUS51 KRNK 112343 SVRRNK VAC067-083-143-120030- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE BLACKSBURG VA 642 PM EST SAT MAR 11 2000 THE NATIONAL WEATHER SERVICE IN BLACKSBURG HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... NORTHEASTERN FRANKLIN COUNTY IN WEST CENTRAL VIRGINIA... HALIFAX COUNTY IN SOUTH CENTRAL VIRGINIA... PITTSYLVANIA COUNTY IN SOUTH CENTRAL VIRGINIA... * UNTIL 730 PM EST * AT 640 PM EST...RADAR AND SPOTTERS INDICATED A LINE OF SEVERE THUNDERSTORMS FROM 19 MILES SOUTHWEST OF SOUTH BOSTON TO 22 MILES WEST OF GRETNA...MOVING NORTHEAST AT 60 MPH. SOME LOCATIONS THREATENED THROUGH 730 PM EST INCLUDE GRETNA... SOUTH BOSTON... HURT... REPORT SEVERE WEATHER TO THE NEAREST LAW ENFORCEMENT AGENCY. A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL MIDNIGHT EST SUNDAY MORNING FOR NORTH CENTRAL NORTH CAROLINA AND SOUTH CENTRAL VIRGINIA~. NNNN JDS
The office that day
Everything else NWS Blacksburg, VA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 11, 6:04 PM EST | Severe Thunderstorm Warning | RNK | Henry, Patrick, City of Martinsville | 31 min |
| Mar 11, 6:42 PM EST | Severe Thunderstorm Warning | RNK | Franklin | 48 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.