Alert archive / Illinois / Severe Thunderstorm Warnings in 1992

Severe Thunderstorm Warning 91, NWS Indianapolis, IN

July 5, 1992Lawrence County, Richland County, Illinois

NWS Indianapolis, IN issued this severe thunderstorm warning at Jul 5, 1992, 7:30 PM CDT for Lawrence County, Richland County, Illinois. It was in force for 45 min.

The area

The counties it named.

The facts

Issued
Jul 5, 1992, 7:30 PM CDT (00:30 UTC)
Expired
Jul 5, 1992, 8:15 PM CDT
In force
45 min
Issued by
NWS Indianapolis, IN
Area
Whole counties

Counties Lawrence County, IL, Richland County, IL

The nearest sounding before it

Paducah/Barkley, KY (KPAH), launched 00:00Z, 0.5 hours before the alert went out and 196 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 1992-07-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 586 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 1992-07-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -39 square meters per square second.193958Sfc1 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
586 J/kg
Mixed-layer CIN
-3 J/kg
Mixed-layer LCL
825 m above ground
0-6 km bulk shear
30 kt
0-1 km storm-relative helicity
-39 m²/s²
0-3 km storm-relative helicity
-32 m²/s²
Significant tornado parameter
-0.1
Supercell composite
-0.8

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KEVV 060032
SVREVV
ILC101-159-060115-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE EVANSVILLE IN
730 PM CDT SUN JUL 5 1992
 
THE NATIONAL WEATHER SERVICE IN EVANSVILLE HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  815 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN SOUTHEAST ILLINOIS
 
   ...LAWRENCE COUNTY...RICHLAND COUNTY
 
AT 728 PM CDT...A SEVERE THUNDERSTORM WAS 55 MILES NORTHWEST OF
EVANSVILLE..IT WAS JUST NORTHWEST OF OLNEY AND WAS MOVING TO THE
SOUTHEAST AT 30 MPH.  THIS STORM WILL REACH OLNEY BY 740 PM....
AND SUMNER ILLINOIS BY 745 PM CDT.  STRONG DAMAGING WIND ALONG
WITH HEAVY RAIN CAN BE EXPECTED WITH THIS THUNDERSTORM...IF YOU
ARE IN THE PATH OF THIS STORM...TAKE COVER IMMEDIATELY.
 
 
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.
ZIMMER

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, Jul 5, 1:43 PM CDT, 5 hours 47 minutes before
INZALL-051945-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
143 PM EST SUN JUL 5 1992

AT 135 PM EST A VERY STRONG THUNDERSTORM WAS OVER THE CITY OF
INDIANAPOLIS.  THIS STORM WAS PRODUCING VERY HEAVY RAIN AND SMALL
HAIL.  NUMEROUS HAIL REPORTS FROM THE NORTHWEST SIDE OF THE CITY
INDICATE THE HAIL IS MAINLY BETWEEN 1/4 AND 1/2 INCH IN DIAMETER.

THE STORM WAS MOVING SOUTHEAST AT 20 MPH...AND WILL MOVE THROUGH
THE SOUTHERN HALF OF INDIANAPOLIS BY 230 PM.  HEAVY RAIN...SMALL
HAIL...GUSTY WINDS AND DANGEROUS LIGHTNING WILL CONTINUE TO
ACCOMPANY THESE STORMS.

THE HEAVY RAIN WILL ALSO PRODUCE SOME MINOR STREET FLOODING IN
INDIANAPOLIS.

ELSON
Special weather statement, Jul 5, 2:37 PM CDT, 4 hours 53 minutes before
INZALL-052030-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
237 PM EST SUN JUL 5 1992

AT 230 PM EST THUNDERSTORMS WERE SCATTERED OVER CENTRAL INDIANA.
SOME OF THE STRONGER THUNDERSTORMS WERE FROM BROWNSBURG TO DANVILLE
INDIANA...ABOUT 10 TO 20 MILES WEST OF INDIANAPOLIS....AND FROM THE
SOUTHEAST PART OF INDIANAPOLIS TO SHELBYVILLE.  THESE STORMS WERE
MOVING SOUTHEAST AT 25 MPH.

THE STORMS WERE PRODUCING VERY HEAVY RAIN...DANGEROUS LIGHTNING...
AND GUSTY WINDS.  SOME SMALL HAIL WILL ALSO BE POSSIBLE AT TIMES
WITH THE STRONGEST STORMS.

ELSON

The office that day

Everything else NWS Indianapolis, IN issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 5, 8:19 PM CDTSevere Thunderstorm WarningINDLawrence, Richland26 min

Nearby

Severe Thunderstorm Warnings in Illinois, 1992Every severe thunderstorm warning in 1992

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.