Alert archive / Illinois / Severe Thunderstorm Warnings in 1994

Severe Thunderstorm Warning 87, NWS Lincoln, IL

August 13, 19944 counties in Illinois

NWS Lincoln, IL issued this severe thunderstorm warning at Aug 13, 1994, 7:18 PM CDT for 4 counties in Illinois. It was in force for 42 min.

The area

The counties it named.

The facts

Issued
Aug 13, 1994, 7:18 PM CDT (00:18 UTC)
Expired
Aug 13, 1994, 8:00 PM CDT
In force
42 min
Issued by
NWS Lincoln, IL
Area
Whole counties

Counties Champaign County, IL, Douglas County, IL, Edgar County, IL, Vermilion County, IL

The nearest sounding before it

Dayton/James M C, OH (KDAY), launched 00:00Z, 0.3 hours before the alert went out and 322 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, Dayton/James M C, OH at 00:00Z on 1994-08-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 659 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, Dayton/James M C, OH at 00:00Z on 1994-08-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 83 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
659 J/kg
Mixed-layer CIN
-8 J/kg
Mixed-layer LCL
1380 m above ground
0-6 km bulk shear
27 kt
0-1 km storm-relative helicity
83 m²/s²
0-3 km storm-relative helicity
146 m²/s²
Significant tornado parameter
0.1
Supercell composite
1.6

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KSPI 140019 RRA
SVRSPI
ILC019-041-045-183-140100-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE SPRINGFIELD IL
718 PM CDT SAT AUG 13 1994
 
THE NATIONAL WEATHER SERVICE IN SPRINGFIELD HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  800 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN EAST CENTRAL ILLINOIS
 
   ...SOUTHEASTERN CHAMPAIGN COUNTY
   ...NORTHEASTERN DOUGLAS COUNTY...NORTHERN EDGAR COUNTY
   ...SOUTHERN VERMILION COUNTY
 
AT 712 PM CDT...RADAR INDICATED A POSSIBLE SEVERE THUNDERSTORM 20 MILES
SOUTHEAST OF CHAMPAIGN...ABOUT 10 MILES EAST OF VILLA GROVE.
 
THIS STORM WAS MOVING TO THE EAST SOUTHEAST AT 30 MPH.
 
TOWNS IN THE PATH OF THIS STORM ARE HUME...CHRISMAN...ALLERTON...SIDELL
AND GEORGETOWN.
 
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.
 
$$
AUTEN

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

In the hours before

Special weather statement, Aug 13, 6:55 PM CDT, 23 minutes before
ILZ017-018-025>031-034>038-040-041-140100-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEORIA IL
655 PM CDT SAT AUG 13 1994

...THE THREAT OF SEVERE WEATHER HAS ENDED FOR CENTRAL ILLINOIS...

THE SEVERE THUNDERSTORM WATCH FOR PORTIONS OF CENTRAL ILLINOIS HAS BEEN
CANCELLED. THE COUNTIES NO LONGER UNDER EFFECT OF THIS WATCH INCLUDE
PEORIA...WOODFORD...TAZEWELL...MCLEAN...MASON...FULTON...AND SCHUYLER.

AT 645 PM CDT...ONLY SCATTERED SHOWERS REMAINED OVER SOUTHERN
MCLEAN COUNTY...HOWEVER ALL THUNDERSTORM ACTIVITY HAD MOVED INTO EAST
CENTRAL ILLINOIS AND INDIANA.

HUNTER/OUSLEY
Special weather statement, Aug 13, 6:56 PM CDT, 22 minutes before
ILZ017-018-025>031-034>038-040-041-140100-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEORIA IL
655 PM CDT SAT AUG 13 1994

...THE THREAT OF SEVERE WEATHER HAS ENDED FOR CENTRAL ILLINOIS...

THE SEVERE THUNDERSTORM WATCH FOR PORTIONS OF CENTRAL ILLINOIS HAS BEEN
CANCELLED. THE COUNTIES NO LONGER UNDER EFFECT OF THIS WATCH INCLUDE
PEORIA...WOODFORD...TAZEWELL...MCLEAN...MASON...FULTON...AND SCHUYLER.

AT 645 PM CDT...ONLY SCATTERED SHOWERS6 REMAINED OVER SOUTHERN
MCLEAN COUNTY...HOWEVER ALL THUNDERSTORM ACTIVITY HAD MOVED INTO EAST
CENTRAL ILLINOIS AND INDIANA.

HUNTER/OUSLEY
Special weather statement, Aug 13, 6:56 PM CDT, 22 minutes before
ILZ042>048-050>057-059>063-140050-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SPRINGFIELD IL
656 PM CDT SAT AUG 13 1994

...A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT FOR MOST OF CENTRAL
AND EAST CENTRAL ILLINOIS UNTIL 10 PM CDT...

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT FOR MOST OF CENTRAL AND
EAST CENTRAL ILLINOIS...EXCLUDING THE COUNTIES OF MONTGOMERY...
CUMBERLAND...AND CLARK UNTIL 10 PM CDT.

AT 6 55 PM CDT...RADAR INDICATED AN AREA OF SHOWERS AND THUNDERSTORMS
MAINLY NORTHWEST OF A LINE EXTENDING FROM 40 MILES SOUTHEAST OF
SPRINGFIELD...NEAR NAKOMIS TO 5 MILES SOUTH OF CHAMPAIGN TO DANVILLE.

THESE STORMS WERE MOVING TO THE SOUTHEAST AT 25 MILES AND HOUR.

THE STRONGEST STORMS WERE SCATTERED ALONG A LINE FROM 30 MILES SOUTHWEST
OF SPRINGFIELD...NEAR MORRISONVILLE TO CHAMPAIGN.

THE STRONGEST STORMS MAY CONTAIN SMALL HAIL...GUSTY WINDS...DEADLY
LIGHTNING...AND BRIEF HEAVY DOWNPOURS OF RAIN.

STAY TUNED TO NOAA WEATHER RADIO FOR FURTHER UPDATES.

PEARSON
Special weather statement, Aug 13, 6:57 PM CDT, 21 minutes before
ILZ042>048-050>057-059>063-140050-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SPRINGFIELD IL
656 PM CDT SAT AUG 13 1994

...A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT FOR MOST OF CENTRAL
AND EAST CENTRAL ILLINOIS UNTIL 10 PM CDT...

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT FOR MOST OF CENTRAL AND
EAST CENTRAL ILLINOIS...EXCLUDING THE COUNTIES OF MONTGOMERY...
CUMBERLAND...AND CLARK UNTIL 10 PM CDT.

AT 6 55 PM CDT...RADAR INDICATED AN AREA OF SHOWERS AND THUNDERSTORMS
MAINLY NORTHWEST OF A LINE EXTENDING FROM 40 MILES SOUTHEAST OF
SPRINGFIELD...NEAR NAKOMIS TO 5 MILES SOUTH OF CHAMPAIGN TO DANVILLE.

THESE STORMS WERE MOVING TO THE SOUTHEAST AT 25 MILES AND HOUR.

THE STRONGEST STORMS WERE SCATTERED ALONG A LINE FROM 30 MILES SOUTHWEST
OF SPRINGFIELD...NEAR MORRISONVILLE TO CHAMPAIGN.

THE STRONGEST STORMS MAY CONTAIN SMALL HAIL...GUSTY WINDS...DEADLY
LIGHTNING...AND BRIEF HEAVY DOWNPOURS OF RAIN.

STAY TUNED TO NOAA WEATHER RADIO FOR FURTHER UPDATES.

PEARSON
Special weather statement, Aug 13, 6:59 PM CDT, 19 minutes before
ILZ017-018-025>031-034>038-040-041-140100-

SPECIAL WEATHER STATEMENT...CORRECTED
NATIONAL WEATHER SERVICE PEORIA IL
659 PM CDT SAT AUG 13 1994

...THE THREAT OF SEVERE WEATHER HAS ENDED FOR PORTIONS OF CENTRAL
ILLINOIS...

THE SEVERE THUNDERSTORM WATCH FOR PORTIONS OF CENTRAL ILLINOIS HAS BEEN
CANCELLED. THE COUNTIES NO LONGER UNDER EFFECT OF THIS WATCH INCLUDE
PEORIA...WOODFORD...TAZEWELL...MCLEAN...MASON...FULTON...AND SCHUYLER.

AT 645 PM CDT...ONLY SCATTERED SHOWERS REMAINED OVER SOUTHERN
MCLEAN COUNTY...HOWEVER ALL THUNDERSTORM ACTIVITY HAD MOVED INTO EAST
CENTRAL ILLINOIS AND INDIANA.

HUNTER/OUSLEY
Special weather statement, Aug 13, 7:00 PM CDT, 18 minutes before
ILZ017-018-025>031-034>038-040-041-140100-

SPECIAL WEATHER STATEMENT...CORRECTED
NATIONAL WEATHER SERVICE PEORIA IL
659 PM CDT SAT AUG 13 1994

...THE THREAT OF SEVERE WEATHER HAS ENDED FOR PORTIONS OF CENTRAL
ILLINOIS...

THE SEVERE THUNDERSTORM WATCH FOR PORTIONS OF CENTRAL ILLINOIS HAS BEEN
CANCELLED. THE COUNTIES NO LONGER UNDER EFFECT OF THIS WATCH INCLUDE
PEORIA...WOODFORD...TAZEWELL...MCLEAN...MASON...FULTON...AND SCHUYLER.

AT 645 PMP CDT...ONLY SCATTERED SHOWERS REMAINED OVER SOUTHERN
MCLEAN COUNTY...HOWEVER ALL THUNDERSTORM ACTIVITY HAD MOVED INTO EAST
CENTRAL ILLINOIS AND INDIANA.

HUNTER/OUSLEY

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.