Alert archive / Illinois / Severe Thunderstorm Warnings in 1994

Severe Thunderstorm Warning 79, NWS St. Louis, MO

June 23, 1994Madison County, Illinois

NWS St. Louis, MO issued this severe thunderstorm warning at Jun 23, 1994, 5:59 PM CDT for Madison County, Illinois. It was in force for 46 min.

The area

The counties it named.

The facts

Issued
Jun 23, 1994, 5:59 PM CDT (22:59 UTC)
Expired
Jun 23, 1994, 6:45 PM CDT
In force
46 min
Issued by
NWS St. Louis, MO
Area
Whole counties

County Madison County, IL

The nearest sounding before it

Paducah/Barkley, KY (KPAH), launched 12:00Z, 11.0 hours before the alert went out and 222 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 1994-06-23Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1357 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 12:00Z on 1994-06-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -21 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
1357 J/kg
Mixed-layer CIN
-47 J/kg
Mixed-layer LCL
801 m above ground
0-6 km bulk shear
11 kt
0-1 km storm-relative helicity
-21 m²/s²
0-3 km storm-relative helicity
-12 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 KSTL 232300
SVRSTL
ILC119-232345-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
559 PM CDT THU JUN 23 1994
 
THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  645 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN SOUTHWEST ILLINOIS
 
   ...MADISON COUNTY
 
AT 6 PM CDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM WITH VERY
HEAVY RAIN AND STRONG AND GUSTY DAMANGING WINDS IN MADISON COUNTY
ILLINOIS JUST SOUTH OF ALTON ILLINOIS. THIS STORM WAS MOVING TO THE
NORTHEAST AROUND 30 MPH. RESIDENTS NEAR THIS STORM REPORTED WIND GUST OF
AROUND 50 MPH. THIS STORM WILL MOVE THROUGH THE VICINITY OF BETHALO AND
MIDWAY BY 630 PM THIS EVENING.
 
THE SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 8 PM CDT FOR MUCH
OF EASTERN MISSOURI AND SOUTHWESTERN ILLINOIS.
 
WHEN THUNDERSTORMS ARE OCCURRING...PEOPLE SHOULD MOVE INSIDE A
STRONG BUILDING.  DO NOT| STAND BY WINDOWS.  DON'T USE TELEPHONES
OR ELECTRICAL APPLIANCES UNLESS IN AN EMERGENCY UNTIL THE STORM
HAS PASSED.  MOTORISTS SHOULD NOT DRIVE INTO LOW WATER CROSSINGS.
 
 
 
&

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, Jun 23, 5:40 PM CDT, 19 minutes before
MOZALL-232340-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
540 PM CDT THU JUN 23 1994

THE SEVERE THUNDERSTORM WATCH HAS BEEN CANCELLED FOR PORTIONS OF
WEST CENTRAL AND CENTRAL MISSOURI.  THE FOLLOWING COUNTIES ARE NO
LONGER INCLUDED IN THE WATCH...HENRY...ST CLAIR...PETTIS...BENTON...
HICKORY...MORGAN...MONITEAU...COOPER...HOWARD...CAMDEN AND RANDOLPH.

THE SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 8 PM FOR
EAST CENTRAL AND PARTS OF NORTHEAST AND CENTRAL MISSOURI...INCLUDING
THE HANNIBAL...COLUMBIA AND ST LOUIS AREAS.

FERRY

WWUS35KFWA.
Special weather statement, Jun 23, 5:41 PM CDT, 18 minutes before
MOZALL-232340-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
540 PM CDT THU JUN 23 1994

THE SEVERE THUNDERSTORM WATCH HAS BEEN CANCELLED FOR PORTIONS OF
WEST CENTRAL AND CENTRAL MISSOURI.  THE FOLLOWING COUNTIES ARE NO
LONGER INCLUDED IN THE WATCH...HENRY...ST CLAIR...PETTIS...BENTON...
HICKORY...MORGAN...MONITEAU...COOPER...HOWARD...CAMDEN AND RANDOLPH.

THE SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 8 PM FOR
EAST CENTRA>L AND PARTS OF NORTHEAST AND CENTRAL MISSOURI...INCLUDING
THE HANNIBAL...COLUMBIA AND ST LOUIS AREAS.

FERRY
Special weather statement, Jun 23, 5:42 PM CDT, 17 minutes before
MOZ024-025-032-033-039>042-045>051-055>059-068>070-239999-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE COLUMBIA MO
540 PM CST JUN 23 1994

...A STRONG THUNDERSTORM IS MOVING INTO CALLAWAY COUNTY...

AT 440PM WEATHER RADAR SHOWED A THUNDERSTORM WITH VERY HEAVY
RAIN...GUSTY WINDS...AND POSSIBLY SMALL HAIL 10 MILES NORTH OF
JEFFERSON CITY IN SOUTHERN CALLAWAY COUNTY.

MOVEMENT WAS TO THE EAST AT 30MPH TOWARDS THE COMMUNITIES OF NEW
BLOOMFIELD...HOLTS SUMMIT...AND MOKANE.

REMEMBER...A SEVERE THUNDERSTORM WATCH IS IN EFFECT UNTIL 8PM.

IF YOU SEE A THUNDERSTORM APPROACHING SEEK STURDY SHELTER IMMEDIATELY!

REAUGH

WWUS35KMLB.
Special weather statement, Jun 23, 5:42 PM CDT, 17 minutes before
MOZ024-025-032-033-039>042-045>051-055>059-068>070-239999-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE COLUMBIA MO
540 PM CST JUN 23 1994

...A STRONG THUNDERSTORM IS MOVING INTO CALLAWAY COUNTY...

AT 440PM WEATHER RADAR SHOWED A THUNDERSTORM WITH VERY HEAVY
RAIN...GUSTY WINDS...AND POSSIBLY SMALL HAIL 10 MILES NORTH OF
JEFFERSON CITY IN SOUTHERN CALLAWAY COUNTY.

MOVEMENT WAS TO THE EAST AT 30MPH TOWARDS THE COMMUNITIES OF NEW
BLOOMFIELD...HOLTS SUMMIT...AND MOKANE.

REMEMBER...A SEVERE THUNDERSTORM WATCH IS IN EFFECT UNTIL 8PM.

IF YOU SEE A THUNDERSTORM APPROACHING SEEK STURDY SHELTER IMMEDIATELY!

REAUGH

WWUS35KMLB.
Special weather statement, Jun 23, 5:46 PM CDT, 13 minutes before
MOZ024-025-032-033-039>042-045>051-055>059-068>070-239999-

SPECIAL WEATHER STATEMENT    ...CORR FOR TIME...
NATIONAL WEATHER SERVICE COLUMBIA MO
540 PM CST JUN 23 1994

...A STRONG THUNDERSTORM IS MOVING INTO CALLAWAY COUNTY...

AT 540PM WEATHER RADAR SHOWED A THUNDERSTORM WITH VERY HEAVY
RAIN...GUSTY WINDS...AND POSSIBLY SMALL HAIL 10 MILES NORTH OF
JEFFERSON CITY IN SOUTHERN CALLAWAY COUNTY.

MOVEMENT WAS TO THE EAST AT 30MPH TOWARDS THE COMMUNITIES OF NEW
BLOOMFIELD...HOLTS SUMMIT...AND MOKANE.

REMEMBER...A SEVERE THUNDERSTORM WATCH IS IN EFFECT UNTIL 8PM.

IF YOU SEE A THUNDERSTORM APPROACHING SEEK STURDY SHELTER IMMEDIATELY!

REAUGH

WWUS35KCVG.
Special weather statement, Jun 23, 5:46 PM CDT, 13 minutes before
MOZ024-025-032-033-039>042-045>051-055>059-068>070-239999-

SPECIAL WEATHER STATEMENT    ...CORR FOR TIME...
NATIONAL WEATHER SERVICE COLUMBIA MO
540 PM CST JUN 23 1994

...A STRONG THUNDERSTORM IS MOVING INTO CALLAWAY COUNTY...

AT 540PM WEATHER RADAR SHOWED A THUNDERSTORM WITH VERY HEAVY
RAIN...GUSTY WINDS...AND POSSIBLY SMALL HAIL 10 MILES NORTH OF
JEFFERSON CITY IN SOUTHERN CALLAWAY COUNTY.

MOVEMENT WAS TO THE EAST AT 30MPH TOWARDS THE COMMUNITIES OF NEW
BLOOMFIELD...HOLTS SUMMIT...AND MOKANE.

REMEMBER...A SEVERE THUNDERSTORM WATCH IS IN EFFECT UNTIL 8PM.

IF YOU SEE A THUNDERSTORM APPROACHING SEEK STURDY SHELTER IMMEDIATELY!

REAUGH

WWUS35KCVG.

The office that day

Everything else NWS St. Louis, MO issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 23, 1:00 PM CDTSevere Thunderstorm WarningLSXAdams45 min
Jun 23, 6:24 PM CDTSevere Thunderstorm WarningLSXBond51 min

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.