Alert archive / Illinois / Severe Thunderstorm Warnings in 1994

Severe Thunderstorm Warning 97, NWS Lincoln, IL

August 28, 1994Christian County, Illinois

NWS Lincoln, IL issued this severe thunderstorm warning at Aug 28, 1994, 3:07 PM CDT for Christian County, Illinois. It was in force for 53 min.

The area

The counties it named.

The facts

Issued
Aug 28, 1994, 3:07 PM CDT (20:07 UTC)
Expired
Aug 28, 1994, 4:00 PM CDT
In force
53 min
Issued by
NWS Lincoln, IL
Area
Whole counties

County Christian County, IL

The nearest sounding before it

Paducah/Barkley, KY (KPAH), launched 12:00Z, 8.1 hours before the alert went out and 280 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 12:00Z on 1994-08-28Temperature 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, Paducah/Barkley, KY at 12:00Z on 1994-08-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 20 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1331 m above ground
0-6 km bulk shear
13 kt
0-1 km storm-relative helicity
20 m²/s²
0-3 km storm-relative helicity
61 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 KSPI 282009 RRA
SVRSPI
ILC021-282100-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE SPRINGFIELD IL
307 PM CDT SUN AUG 28 1994
 
THE NATIONAL WEATHER SERVICE IN SPRINGFIELD HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  400 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN CENTRAL ILLINOIS
 
   ...EASTERN CHRISTIAN COUNTY
 
AT 305 PM CDT...RADAR INDICATED A SEVERE THUNDERSTORM 30 MILES SOUTHEAST
OF SPRINGFIELD...NEAR TAYLORVILLE. THE STORM WAS MOVING TO THE EAST
SOUTHEAST AT 25 MILES AN HOUR.
 
TOWNS IN AND NEAR THE PATH OF THIS STORM ARE TAYLORVILLE...ASSUMPTION ANPANA.
 
TAKE SHELTER IN A SUBSTANTIAL BUILDING.  STAY AWAY FROM WINDOWS.
LIGHTNING KILLS...SO STAY OFF OF TELEPHONES. REMEMBER...A SEVERE
THUNDERSTORM MAY PRODUCE A TORNADO AT ANY TIME.

Nearby

Severe Thunderstorm Warnings in Illinois, 1994Every severe thunderstorm warning 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.