Alert archive / South Carolina / Tornado Warnings in 1994

Tornado Warning 21, NWS Columbia, SC

September 18, 1994Orangeburg County, South Carolina

NWS Columbia, SC issued this tornado warning at Sep 18, 1994, 2:18 PM EDT for Orangeburg County, South Carolina. It was in force for 42 min.

The area

The counties it named.

The facts

Issued
Sep 18, 1994, 2:18 PM EDT (18:18 UTC)
Expired
Sep 18, 1994, 3:00 PM EDT
In force
42 min
Issued by
NWS Columbia, SC
Area
Whole counties

County Orangeburg County, SC

The nearest sounding before it

Charleston AFB, SC (KCHS), launched 12:00Z, 6.3 hours before the alert went out and 96 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, Charleston AFB, SC at 12:00Z on 1994-09-18Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1054 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, Charleston AFB, SC at 12:00Z on 1994-09-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 166 square meters per square second.1939Sfc1 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
1054 J/kg
Mixed-layer CIN
-33 J/kg
Mixed-layer LCL
633 m above ground
0-6 km bulk shear
25 kt
0-1 km storm-relative helicity
166 m²/s²
0-3 km storm-relative helicity
162 m²/s²
Significant tornado parameter
0.6
Supercell composite
4.4

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KCAE 181816
TORCAE
SCC075-181900-
 
BULLETIN - EBS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE COLUMBIA SC
218 PM EDT SUN SEP 18 1994
 
THE NATIONAL WEATHER SERVICE IN COLUMBIA HAS ISSUED A
TORNADO WARNING EFFECTIVE UNTIL  300 PM EDT
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN  SOUTH CAROLINA
 
   ...ORANGEBURG COUNTY
 
OFFICIALS IN ORANGEBURG REPORTED A TORNADO TOUCHDOWN ON HIGHWAY 301 NEAR
 
NEAR COPE SOUTH CAROLINA AT 2 PM. THE STORM WAS M`OVING EAST AROUND
20 MPH.
 
 
THIS IS A DANGEROUS STORM! SEEK SHELTER NOW!
 
AMATEUR RADIO AND OTHER SPOTTERS ARE REQUESTED TO MONITOR THIS
STORM AND RELAY REPORTS PROMPTLY TO THE NEAREST NATIONAL
WEATHER SERVICE OFFICE.
 
 
 
&

Nearby

Tornado Warnings in South Carolina, 1994Every tornado warning in 1994Tornadoes in 1994

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.