Alert archive / Illinois / Tornado Warnings in 1993

Tornado Warning 7, NWS St. Louis, MO

July 2, 1993Effingham County, Illinois

NWS St. Louis, MO issued this tornado warning at Jul 2, 1993, 7:45 PM CDT for Effingham County, Illinois. It was in force for 45 min.

The area

The counties it named.

The facts

Issued
Jul 2, 1993, 7:45 PM CDT (00:45 UTC)
Expired
Jul 2, 1993, 8:30 PM CDT
In force
45 min
Issued by
NWS St. Louis, MO
Area
Whole counties

County Effingham County, IL

The nearest sounding before it

Paducah/Barkley, KY (KPAH), launched 00:00Z, 0.8 hours before the alert went out and 221 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, Paducah/Barkley, KY at 00:00Z on 1993-07-03Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1309 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, Paducah/Barkley, KY at 00:00Z on 1993-07-03The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 76 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
1309 J/kg
Mixed-layer CIN
-37 J/kg
Mixed-layer LCL
1381 m above ground
0-6 km bulk shear
27 kt
0-1 km storm-relative helicity
76 m²/s²
0-3 km storm-relative helicity
132 m²/s²
Significant tornado parameter
0.2
Supercell composite
2.7

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KSTL 030047
TORSTL
ILC049-030130-
 
BULLETIN - EBS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
745 PM CDT FRI JUL 2 1993
 
THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A
TORNADO WARNING EFFECTIVE UNTIL  830 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN SOUTH CENTRAL ILLINOIS
 
   ...EFFINGHAM COUNTY
 
AT 744 PM...NWS DOPPLER RADAR SHOWED A SEVERE THUNDERSTORM LOCATED
NEAR MASON...12 MILES SOUTHWEST OF EFFINGHAM. STORM MOVEMENT WAS
TO THE NORTHEAST AT 25 MPH. AT 745 PM...A TORNADO WAS REPORTED IN
MASON MOVING TO THE NORTHEAST.
 
PEOPLE IN EFFINGHAM SHOULD MOVE TO SHELTER NOW!
 
IF YOU ARE IN THE PATH OF A TORNADO...THE SAFEST PLACE IS A
BASEMENT.  GET UNDER A WVORKBENCH OR PIECE OF STURDY FURNITURE.
IF NO BASEMENT IS AVAILABLE...SEEK SHELTER IN AN INTERIOR ROOM
SUCH AS A CLOSET ON THE LOWEST FLOOR.  USE BLANKETS...PILLOWS...
OR CUSHIONS TO COVER YOUR BODY.  AVOID WINDOWS.
 
EHG
 
&

Nearby

Tornado Warnings in Illinois, 1993Every tornado warning in 1993Tornadoes in 1993

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.