Alert archive / Virginia / Severe Thunderstorm Warnings in 1991
Severe Thunderstorm Warning 13, NWS Blacksburg, VA
NWS Blacksburg, VA issued this severe thunderstorm warning at Apr 9, 1991, 8:15 PM EDT for Franklin County, Virginia. It was in force for 45 min.
The area
The counties it named.
The facts
- Issued
- Apr 9, 1991, 8:15 PM EDT (00:15 UTC)
- Expired
- Apr 9, 1991, 9:00 PM EDT
- In force
- 45 min
- Issued by
- NWS Blacksburg, VA
- Area
- Whole counties
County Franklin County, VA
The nearest sounding before it
Greensboro/Hi Pt, NC (KGSO), launched 00:00Z, 0.3 hours before the alert went out and 101 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- NaN m above ground
- 0-6 km bulk shear
- 22 kt
- 0-1 km storm-relative helicity
- 74 m²/s²
- 0-3 km storm-relative helicity
- 103 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 KROA 100016 SVRROA VAC067-100100- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE ROANOKE VA 815 PM EDT TUE APR 9 1991 THE NATIONAL WEATHER SERVICE IN ROANOKE VA HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 900 PM EDT FOR PEOPLE IN THE FOLLOWING LOCATION... IN SOUTH CENTRAL VIRGINIA ...FRANKLIN COUNTY AT 812 PM WEATHER RADAR SHOWED A VERY HEAVY THUNDERSTORM OVER THE EXTREME WEST PART OF FRANKLIN COUNTY. THIS STORM WILL LIKELY HAVE VERY STRONG WINDS AND LARGE HAIL AS IT MOVES EAST AT 50 MPH. ALL FRANKLIN COUNTY AND CITY OF ROCKY MT RESIDENTS SHOULD TAKE SHELTER IMMEDIATELY FROM THIS STORM. A TORNADO WATCH IS ALSO IN EFFECT FOR THTE WARNED AREA. REMEMBER SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE TORNADOES WITH LITTLE OR NO ADVANCE WARNING. REMAIN CALM BUT BE ALERT TO RAPIDLY CHANGING WEATHER CONDITIONS. MCINTOSH
The office that day
Everything else NWS Blacksburg, VA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 9, 8:44 PM EDT | Severe Thunderstorm Warning | RNK | Bedford, Pittsylvania | 61 min |
Nearby
Severe Thunderstorm Warnings in Virginia, 1991Every severe thunderstorm warning in 1991
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.