Alert archive / Illinois / Severe Thunderstorm Warnings in 1993

Severe Thunderstorm Warning 9, NWS Lincoln, IL

May 12, 1993Tazewell County, Illinois

NWS Lincoln, IL issued this severe thunderstorm warning at May 12, 1993, 6:47 PM CDT for Tazewell County, Illinois. It was in force for 43 min.

The area

The counties it named.

The facts

Issued
May 12, 1993, 6:47 PM CDT (23:47 UTC)
Expired
May 12, 1993, 7:30 PM CDT
In force
43 min
Issued by
NWS Lincoln, IL
Area
Whole counties

County Tazewell County, IL

The nearest sounding before it

Paducah/Barkley, KY (KPAH), launched 12:00Z, 11.8 hours before the alert went out and 389 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 1993-05-12Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1 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 1993-05-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 56 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
1 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
597 m above ground
0-6 km bulk shear
37 kt
0-1 km storm-relative helicity
56 m²/s²
0-3 km storm-relative helicity
99 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 KPIA 122347
SVRPIA
ILC179-130045-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING 
NATIONAL WEATHER SERVICE PEORIA IL
647 PM CDT WED MAY 12 1993

THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM 
WARNING EFFECTIVE UNTIL 745 PM CDT FOR PEOPLE IN THE FOLLOWING 
COUNTY

   IN THE CENTRAL PART OF ILLINOIS
      TAZEWELL

AT 643 PM... WEATHER RADAR INDICATED A SEVERE THUNDERSTORM JUST
SOUTH OF SUNNYLAND. THIS STORM WAS MOVING SOUTH AT 10 TO 15 MPH.

IF YOU ARE IN AN AREA THREATENED BY THE STORM..GO TO A REINFORECED
SHELTER AND PREPARE FOR DAMAGING WIND...LARGE HAIL...VERY HEAVY
RAIN AND LIGHTNING.

REMEMBER...SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE
A TORNADO WITH LITTLE OR NO ADVANCE WARNING SO BE ON THE LOOKOUT.


MOGGED

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, May 12, 3:54 PM CDT, 2 hours 53 minutes before
ILZ009-122200-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SPRINGFIELD IL
3 50 PM CDT WED MAY 12 1993

...LINE OF STRONG THUNDERSTORMS BETWEEN BLOOMINGTON AND SPRINGFIELD
   ILLINOIS...
...SEVERE THUNDERSTORMS WATCH IN EFFECT FOR PARTS OF CENTRAL AND
   EAST CENTRAL ILLINOIS UNTIL 8 PM CDT...

AT 3 40 PM...RADAR INDICATED A LINE OF STRONG THUNDERSTORMS BETWEEN
SPRINGFIELD AND PEORIA IN CENTRAL ILLINOIS.  THE STORMS WERE FROM
20 MILES SOUTHEAST OF QUINCY TO SPRINGFIELD TO BETWEEN CLINTON AND
DE WITT.

OTHER STRONG STORMS EXTENDED FROM BLOOMINGTON TO 20 MILES NORTH OF
DANVILLE ILLINOIS.

TAKE SHELTER IN A SUBSTANTIAL BUILDING FOR SAFETY FROM THESE STORMS.
THEY WILL HAVE FREQENT DANGEROUS LIGHTNING...HAIL...BRIEF STRONG
GUSTY WINDS AND HEAVY DOWNPURS OF RAIN.

PALMER
Special weather statement, May 12, 3:57 PM CDT, 2 hours 50 minutes before
ILZ009-122200-

SPECIAL WEATHER STATEMENT...CORRECTED TO ADD STORM MOVEMENT...
NATIONAL WEATHER SERVICE SPRINGFIELD IL
3 50 PM CDT WED MAY 12 1993

...LINE OF STRONG THUNDERSTORMS BETWEEN BLOOMINGTON AND SPRINGFIELD
   ILLINOIS...
...SEVERE THUNDERSTORMS WATCH IN EFFECT FOR PARTS OF CENTRAL AND
   EAST CENTRAL ILLINOIS UNTIL 8 PM CDT...

AT 3 40 PM...RADAR INDICATED A LINE OF STRONG THUNDERSTORMS BETWEEN
SPRINGFIELD AND PEORIA IN CENTRAL ILLINOIS.  THE STORMS WERE FROM
20 MILES SOUTHEAST OF QUINCY TO SPRINGFIELD TO BETWEEN CLINTON AND
DE WITT.

OTHER STRONG STORMS EXTENDED FROM BLOOMINGTON TO 20 MILES NORTH OF
DANVILLE ILLINOIS. ALL OF THE STORMS WERE MOVING SOUTHEAST AT 15 MPH.

TAKE SHELTER IN A SUBSTANTIAL BUILDING FOR SAFETY FROM THESE STORMS.
THEY WILL HAVE FREQUENT DANGEROUS LIGHTNING...HAIL...BRIEF STRONG
GUSTY WINDS AND HEAVY DOWNPURS OF RAIN.

PALMER
Special weather statement, May 12, 4:03 PM CDT, 2 hours 44 minutes before
ILZ006-007-009-122200-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEORIA IL
400 PM CDT TUE MAY 11 1993

...SEVERE THUNDERSTORM WATCH FOR TAZEWELL AND MCLEAN COUNTIES...

SCATTERED THUNDERSTORMS WERE ONCE AGAIN DEVELOPING IN MCLEAN COUNTY AT
4 PM. ONE SMALL STORM WAS NEAR COLFAX WHILE ANOTHER WAS NEAR DANVERS. THESE
STORMS WERE SINKING SOUTH SOUTHEAST AT 10 TO 15 MPH. THESE THUNDERSTORMS MAY
INTENSIFY AS THEY MOVE FURTHER SOUTH. A SEVERE THUNDERSTORM WATCH MEANS
CONDITIONS ARE FAVORABLE FOR THE DEVELOPMENT OF SEVERE THUNDERSTORMS WHICH
PRODUCE LARGE HAIL... GUSTY WINDS AND DEADLY LIGHTNING.

ALSO.. A THUNDERSTORM HAD DEVELOPED JUST EAST OF RUSHVILLE IN SCHUYLER COUNTY
WHICH WAS MOVI,NG SOUTH AT 10 MPH. THIS STORM MAY PRODUCE SMALL HAIL.

STAY TUNED TO NOAA WEATHER RADIO ON A FREQUENCY OF 162.475 MEGAHERTZ OR
LOCAL TELEVISION OR RADIO FOR THE LATEST STATEMENTS AND POSSIBLE WARNINGS.
MOGGED
Special weather statement, May 12, 4:58 PM CDT, 1 hour 49 minutes before
ILZ009-010-122300-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SPRINGFIELD IL
4 50 PM CDT WED MAY 12 1993

...STRONG THUNDERSTORMS NORTH OF CHAMPAIGN AND DANVILLE ILLINOIS...
...SEVERE THUNDERSTORMS WATCH IN EFFECT FOR PARTS OF CENTRAL AND
   EAST CENTRAL ILLINOIS UNTIL 8 PM CDT...

AT 4 40 PM...RADAR INDICATED A FEW STRONG THUNDERSTORMS IN SOUTHEAST
LIVINGSTON...SOUTHERN FORD AND IROQUOIS COUNTIES IN EAST CENTRAL
ILLINOIS NORTH OF CHAMPAIGN AND DANVILLE.  THESE STORMS WERE MOVING
SLOWLY SOUTHEAST AT 15 MPH.

PEOPLE IN NORTHERN AREAS OF CHAMPAIGN AND VERMILION COUNTIES SHOULD
BE PREPARED TO TAKE SHELTER IN A SUBSTANTIAL BUILDING FOR PROTECTION
FROM THESE STORMS.  THEY WILL HAVE DANGEROUS LIGHTNING...HAIL...
BRIEF STRONG GUSTY WINDS AND HEAVY RAINS.

OTHER SHOWERS AND SCATTERED THUNDERSTORMS WERE ALONG AND SOUTH OF A
LINE FROM 30 MILES SOUTHWEST OF SPRINGFIELD TO 25 MILES SOUTHWEST OF
DECATUR TO EFFINGHAM.  THESE SHOWERS AND, THUNDERSTORMS WERE ALSO
MOVING SOUTHEAST AT 15 MPH.

PALMER
Special weather statement, May 12, 5:07 PM CDT, 1 hour 40 minutes before
ILZ006-007-009-132300-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEORIA IL
503 PM CDT TUE MAY 11 1993

...SEVERE THUNDERSTORM WATCH CONTINUES FOR TAZEWELL AND MCLEAN COUNTIES...

A COLD FRONT DROPPING SOUTH FROM NORTHERN ILLINOIS WILL HELP TO TRIGGER
THUNDERSTORMS SOUTH OF A LINE FROM BURLINGTON TO PONTIAC. AT 5 PM...
WEATHER RADAR INDICATED SCATTERED SHOWERS ACROSS TAZEWELL AND MCLEAN COUNTIES.
ONE ISOLATED SHOWER WAS IN SOUTHERN FULTON HCOUNTY. ALL THE ACTIVITY WAS
MOVING SOUTH SOUTHEAST AT 10 TO 15 MPH.

STAY TUNED TO NOAA WEATHER RADIO ON A FREQUENCY OF 162.475 MEGAHERTZ OR
LOCAL TELEVISION OR RADIO FOR THE LATEST STATEMENTS AND POSSIBLE WARNINGS.

MOGGED
Special weather statement, May 12, 5:52 PM CDT, 55 minutes before
ILZ009-010-122300-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SPRINGFIELD IL
5 50 PM CDT WED MAY 12 1993

...STRONG THUNDERSTORMS NORTH OF SPRINGFIELD AND CHAMPAIGN AREAS...
...SEVERE THUNDERSTORMS WATCH IN EFFECT FOR PARTS OF CENTRAL AND
   EAST CENTRAL ILLINOIS UNTIL 8 PM CDT...

AT 5 40 PM...RADAR INDICATED A LINE OF STRONG THUNDERSTORMS FROM
BLOOMINGTON TO 5 MILES NORTHEAST OF RANTOUL.  OTHER ISOLATED STRONG
STORMS WERE 15 MILES NORTHWEST OF HAVANA AND BETWEEN PEORIA AND
DELEVAN.  THESE STRONG STORMS WERE MOVING SOUTHEAST AT 10 TO 15 MPH.

PEOPLE IN NORTHERN AREAS OF CHAMPAIGN AND VERMILION COUNTIES SHOULD
BE PREPARED TO TAKE SHELTER IN A SUBSTANTIAL BUILDING FOR PROTECTION
FROM THESE STORMS.  THEY WILL HAVE DANGEROUS LIGHTNING...HAIL...
BRIEF STRONG GUSTY WINDS AND HEAVY RAINS.

OTHER SHOWERS AND SCATTERED THUNDERSTORMS WERE ALONG AND SOUTH OF A
LINE FROM NEAR ALTON ILLINOIS TO JUST SOUTH OF CHARLESTON AND MATTOON
TO TERR HAUTE INDIANA.  THESE SHOWERS AND THUNDERSTORMS WERE ALSO
MOVING SOUTHEAST AT 10 TO 15 MPH.

PALMER

The office that day

Everything else NWS Lincoln, IL issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 12, 5:52 PM CDTSevere Thunderstorm WarningILXMcLean68 min

Nearby

Severe Thunderstorm Warnings in Illinois, 1993Every severe thunderstorm warning 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.