Alert archive / North Carolina / Tornado Warnings in 1991

Tornado Warning 2, NWS Blacksburg, VA

April 9, 1991Rowan County, North Carolina

NWS Blacksburg, VA issued this tornado warning at Apr 9, 1991, 8:11 PM EDT for Rowan County, North Carolina. It was in force for 34 min.

The area

The counties it named.

The facts

Issued
Apr 9, 1991, 8:11 PM EDT (00:11 UTC)
Expired
Apr 9, 1991, 8:45 PM EDT
In force
34 min
Issued by
NWS Blacksburg, VA
Area
Whole counties

County Rowan County, NC

The nearest sounding before it

Greensboro/Hi Pt, NC (KGSO), launched 00:00Z, 0.2 hours before the alert went out and 75 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, Greensboro/Hi Pt, NC at 00:00Z on 1991-04-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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, Greensboro/Hi Pt, NC at 00:00Z on 1991-04-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 74 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
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

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
TTAA00 KGSO 100011 RRA
TORGSO
NCC159-100045-

BULLETIN - IMMEDIATE BROADCAST REQUESTED/EBS ACTIVATION REQUESTED 
TORNADO WARNING 
NATIONAL WEATHER SERVICE GREENSBORO NC
811 PM EDT TUE APR 9 1991

THE NATIONAL WEATHER SERVICE HAS ISSUED A TORNADO WARNING 
EFFECTIVE UNTIL 845 PM EDT FOR PEOPLE IN THE FOLLOWING COUNTY

   IN THE STATE OF NORTH CAROLINA
      ROWAN

AT 805 PM RADAR REPORTS POSSIBLE TORNADO JUST NORTH OF CLEVELAND
IN ROWAN COUNTY.  MOVING EAT AT 30 MPH.

THIS IS A DANGEROUS STORM.  TAKE COVER IMMEDIATELY.

 IF THREATENING WEATHER APPROACHES..YOU SHOULD GO TO A SAFE PLACE
 IMMEDIATELY.  WHEN IT IS SAFE..ASK YOUR NEAREST LAW ENFOREMENT
 AGENCY TO RELAY YOUR SEVERE WEATHER REPORT TO THE LOCAL NATIONAL
 WEATHER SERVICE OFFICE.

 SAS

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 9, 8:28 PM EDTSevere Thunderstorm WarningRNKDavidson, Forsyth, Stokes32 min
Apr 9, 8:44 PM EDTSevere Thunderstorm WarningRNKRockingham61 min
Apr 9, 8:44 PM EDTSevere Thunderstorm WarningRNKGuilford, Randolph61 min
Apr 9, 9:21 PM EDTSevere Thunderstorm WarningRNKAlamance, Caswell24 min

Nearby

Tornado Warnings in North Carolina, 1991Every tornado warning in 1991Tornadoes 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.