Alert archive / Virginia / Severe Thunderstorm Warnings in 1990
Severe Thunderstorm Warning 63, NWS Blacksburg, VA
NWS Blacksburg, VA issued this severe thunderstorm warning at Sep 7, 1990, 4:17 PM EDT for Halifax County, Pittsylvania County, Virginia. It was in force for 118 min.
The area
The counties it named.
The facts
- Issued
- Sep 7, 1990, 4:17 PM EDT (20:17 UTC)
- Expired
- Sep 7, 1990, 6:15 PM EDT
- In force
- 118 min
- Issued by
- NWS Blacksburg, VA
- Area
- Whole counties
Counties Halifax County, VA, Pittsylvania County, VA
The radar
The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.
The nearest sounding before it
Greensboro/Hi Pt, NC (KGSO), launched 12:00Z, 8.3 hours before the alert went out and 103 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
- 737 J/kg
- Mixed-layer CIN
- -67 J/kg
- Mixed-layer LCL
- 1456 m above ground
- 0-6 km bulk shear
- 19 kt
- 0-1 km storm-relative helicity
- 40 m²/s²
- 0-3 km storm-relative helicity
- 74 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000
TTAA00 KLYH 072030
SVRLYH
VAC083-143-072215-
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE LYNCHBURG VA
417 PM EDT FRI SEP 7 1990 CORRECTION
THE NATIONAL WEATHER SERVICE IN LYNCHBURG HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 615 PM EDT
FOR PEOPLE IN THE FOLLOWING COUNTIES...
IN SOUTH CENTRAL VIRGINIA
...NORTHEASTERN PITTSYLVANIA..HALIFAX..SOUTH BOSTON...
AT 332 PM A LINE OF THUNDERSTORMS MOVED INTO CENTRAL VIRGINIA.
HAIL WAS OBSERVED WITH THUNDERSTORMS MOVING THROUGH NORTHERN
BEDFORD COUNTY. THESE STORMS WERE MOVING SOUTHEASTWARD THROUGH
CAMPBELL COUNTY AT 35 MPH MPH AND SHOULD ENTER NORTHEAST HALIFAX
COUNTY WITHIN THE HALF HOUR.
THIS 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 BUT STAY AWAY FROM WINDOWS.
MEADOWSWhat forecasters said that day
The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
In the hours before
Special weather statement, Sep 7, 2:24 PM EDT, 1 hour 53 minutes before
VAZ013-014-071930- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ROANOKE VA 215 PM EDT FRI SEP 07 1990 ...THUNDERSTORMS MOVING INTO WESTCENTRAL VIRGINIA... AT 2 PM EDT RADAR SHOWED A LINE OF THUNDERSTORMS OVER EASTERN WEST VIRGINIA IS MOVING INTO NORTHEASTERN GILES CRAIG AND BOTETOURT COUNTIES IN WESTCENTRAL VIRGINIA WITHIN THE HOUR. THESE STORMS ARE CAPABLE OF PRODUCING HEAVY DOWNPOURS STRONG GUSTY WINDS DANGEROUS LIGHTNING AND POSSIBLE HAIL. IF THREATENING WEATHER APPROACHES YOU SHOULD GO TO A SAFE PLACE IMMEDIATELY. CG
The office that day
Everything else NWS Blacksburg, VA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 7, 3:26 PM EDT | Severe Thunderstorm Warning | RNK | Amherst, Bedford | 64 min |
| Sep 7, 3:52 PM EDT | Severe Thunderstorm Warning | RNK | Bedford, Campbell | 68 min |
Nearby
Severe Thunderstorm Warnings in Virginia, 1990Every severe thunderstorm warning in 1990
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.