Alert archive / Illinois / Severe Thunderstorm Warnings in 1993

Severe Thunderstorm Warning 151, NWS Lincoln, IL

August 16, 1993Champaign County, Piatt County, Illinois

NWS Lincoln, IL issued this severe thunderstorm warning at Aug 16, 1993, 9:19 PM CDT for Champaign County, Piatt County, Illinois. It was in force for 21 min. 1 report came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued
Aug 16, 1993, 9:19 PM CDT (02:19 UTC)
Expired
Aug 16, 1993, 9:40 PM CDT
In force
21 min
Issued by
NWS Lincoln, IL
Area
Whole counties

Counties Champaign County, IL, Piatt County, IL

What was reported inside it

TimeReportWhereRemark
Aug 16, 9:31 PM CDTTornado F0Monticello, ILA tornado briefly touched down near old Highway 47, 3 miles west of Monticello. No damage was reported.

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in. Storm Data before 1996 records only tornadoes, thunderstorm wind and hail.

The nearest sounding before it

Paducah/Barkley, KY (KPAH), launched 00:00Z, 2.3 hours before the alert went out and 335 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 1993-08-17Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 3482 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 1993-08-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 33 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
3482 J/kg
Mixed-layer CIN
-17 J/kg
Mixed-layer LCL
1086 m above ground
0-6 km bulk shear
24 kt
0-1 km storm-relative helicity
33 m²/s²
0-3 km storm-relative helicity
70 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 
WUUS1 KSPI 170219 RRA
SVRSPI
ILC019-147-170315-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING 
NATIONAL WEATHER SERVICE SPRINGFIELD IL
919 PM CDT MON AUG 16 1993

THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM 
WARNING EFFECTIVE UNTIL 1015 PM CDT FOR PEOPLE IN THE FOLLOWING 
COUNTIES

   IN THE EAST CENTRAL PART OF ILLINOIS
      SOUTHWEST CHAMPAIGN...

   IN THE CENTRAL PART OF ILLINOIS
      CENTRAL PIATT...

AT 915 PM CDT...RADAR INDICATED A SEVERE THUNDERSTORM 22 MILES
NORTHEAST OF DECATUR...OR JUST SOUTHEAST OF DELAND...MOVING
SOUTHEAST AT 25 MPH.

HAIL AND HIGH WIND WAS REPORTED WITH THIS STORM JUST WEST OF DELAND
AT 908 PM.

THE TOWNS OF MONTICELLO...BEMENT AND SADORUS ARE IN THE PATH OF
THIS STORM.

THIS IS A DANGEROUS STORM. TAKE COVER IMMEDIATELY.  IF YOU ARE IN
THE PATH OF THIS STORM...YOU SHOULD PREPARE FOR DAMAGING WINDS IN
EXCESS OF 55 MPH...LARGE HAIL AND DEADLY LIGHTNING.  BOATERS SHOULD
MOVE OFF LAKES TO SHELTER.  PEOPLE OUTSIDE SHOULD MOVE INDOORS...
BUT STAY AWAY FROM WINDOWS.

MCCOY

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 16, 7:16 PM CDT, 2 hours 3 minutes before
ILZ009-010-170015-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SPRINGFIELD IL
715 PM CDT MON AUG 16 1993

...SEVERE THUNDERSTORM WATCH UNTIL 10 PM FOR ALL OF CENTRAL AND EAST
CENTRAL ILLINOIS...

AT 712 PM CDT...RADAR DETECTED SCATTERED SHOWERS AND A FEW
THUNDERSTORMS OVER CENTRAL ILLINOIS...FROM 40 MILES NORTHEAST OF
SPRINGFIELD...TO JUST WEST OF DECATUR...TO 25 MILES SOUTHEAST OF
SPRINGFIELD NEAR TAYLORVILLE.

A FEW SEVERE STORMS ARE P^OSSIBLE THIS EVENING OVER CENTRAL AND EAST
CENTRAL ILLINOIS.

STAY TUNED TO YOUR FAVORITE WEATHER INFORMATION SOURCE FOR ADDITIONAL
STATEMENTS AND POSSIBLE WARNINGS.

MCCOY
Special weather statement, Aug 16, 8:40 PM CDT, 39 minutes before
ILZ005-006-007-170240-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEORIA IL
840 PM CDT MON AUG 16 1993

...SEVERE THUNDERSTORM WATCH FOR MUCH OF WEST CENTRAL ILLINOIS UNTIL 10 PM...

AT 840 PM CDT...A STRONG THUNDERSTORM WAS LOCATED OVER MCLEAN COUNTY...
BETWEEN COLFAX AND LEROY.  MOVEMENT WAS EAST SOUTHEAST AT 25 MPH.

THE POTENTIAL EXISTS FOR RAPID DEVELOPMENT OF SEVERE THUNDERSTORMS UNTIL
10 PM.  STAY TUNED TO NOAA WEATHER RADIO OR YOUR FAVORITE LOCAL RADIO OR
TELEVISION STATION FOR LATER STATEMENTS AND POSSIBLE WARNINGS.

BUCKINGHAM
Special weather statement, Aug 16, 8:43 PM CDT, 36 minutes before
ILZ005-006-007-170240-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEORIA IL
840 PM CDT MON AUG 16 1993

...SEVERE THUNDERSTORM WATCH FOR MUCH OF WEST CENTRAL ILLINOIS UNTIL 10 PM...

AT 840 PM CDT...A STRONG THUNDERSTORM WAS LOCATED OVER MCLEAN COUNTY...
BETWEEN COLFAX AND LEROY.  MOVEMENT WAS EAST SOUTHEAST AT 25 MPH.

THE POTENTIAL EXISTS FOR RAPID DEVELOPMENT OF SEVERE THUNDERSTORMS UNTIL
10 PM.  STAY TUNED TO NOAA WEATHER RADIO OR YOUR FAVORITE LOCAL RADIO OR
TELEVISION STATION FOR LATER STATEMENTS AND POSSIBLE WARNINGS.

BUCKINGHAM
Local storm report, Aug 16, 9:02 PM CDT, 17 minutes before
LOCAL STORM REPORT
NATIONAL WEATHER SERVICE PEORIA IL
900 PM CDT WED AUG 18 1993

REPORTS FOR COUNTY WARNING AREA...BEGINNING 1923 CDT...AUGUST 16 1993

COUNTY     TIME CDT

MCLEAN.... 1957 CDT HEYWORTH.t..11 MILES SOUTH OF BLOOMINGTON:
                    REPORT OF GOLFBALL SIZED HAIL FROM MCLEAN COUNTY ESDA.
BREESER/BUCKINGHAM
Local storm report, Aug 16, 9:10 PM CDT, 9 minutes before
LOCAL STORM REPORT...UPDATED...
NATIONAL WEATHER SERVICE PEORIA, IL.
910 PM CDT MON AUG 16 1993

REPORTS FOR COUNTY WARNING AREA...BEGINNING 1910 CDT...AUGUST 16 1993

COUNTY     TIME CDT

TAZEWELL.. 1910 CDT HOPEDALE...20 MILES SOUTHEAST OF PEORIA:
                    FUNNEL CLOUD REPORTED BY TRAINED SPOTTER.
TAZEWELL.. 1923 CDT MINIER...23 MILES SOUTHEAST OF PEORIA:
                    SPECIAL OBSERVATION OF HOOK ECHO BY MARSEILLES RADAR IN
                    VICINITY OF MINIER.
MCLEAN.... 1957 CDT HEYWORTH...11 MILES SOUTH OF BLOOMINGTON:
                    REPORT OF GOLFBALL SIZED HAIL FROM MCLEAN COUNTY ESDA.

BUCKNINGHAM/BREESER
Local storm report, Aug 16, 9:13 PM CDT, 6 minutes before
LOCAL STORM REPORT...UPDATED...
NATIONAL WEATHER SERVICE PEORIA, IL.
910 PM CDT MON AUG 16 1993

REPORTS FOR COUNTY WARNING AREA...BEGINNING 1910 CDT...AUGUST 16 1993

COUNTY     TIME CDT

TAZEWELL.. 1910 CDT HOPEDALE...20 MILES SOUTHEAST OF PEORIA:
                    FUNNEL CLOUD REPORTED BY TRAINED SPOTTER.
TAZEWELL.. 1923 CDT MINIER...23 MILES SOUTHEAST OF PEORIA:
                    SPECIAL OBSERVATION OF HOOK ECHO BY MARSEILLES RADAR IN
                    VICINITY OF MINIER.
MCLEAN.... 1957 CDT HEYWORTH...11 MILES SOUTH OF BLOOMINGTON:
                    REPORT OF GOLFBALL SIZED HAIL FROM MCLEAN COUNTY ESDA.

BUCKNINGHAM/BREESER

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 16, 7:15 PM CDTTornado WarningILXMcLean, Tazewell30 min
Aug 16, 7:45 PM CDTTornado WarningILXDeWitt, McLean30 min
Aug 16, 8:20 PM CDTTornado WarningILXDeWitt25 min
Aug 16, 8:47 PM CDTTornado WarningILXDeWitt, Piatt28 min
Aug 16, 9:40 PM CDTTornado WarningILXChampaign, Piatt20 min
Aug 16, 10:02 PM CDTTornado WarningILXDouglas28 min
Aug 16, 10:10 PM CDTTornado WarningILXChampaign25 min
Aug 17, 4:55 PM CDTSevere Thunderstorm WarningILXColes, Cumberland, Shelby35 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.