247  
WWUS53 KLOT 212258  
SVSLOT  
 
SEVERE WEATHER STATEMENT  
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE  
558 PM CDT FRI AUG 21 2026  
 
ILC037-099-103-212330-  
/O.CON.KLOT.SV.W.0262.000000T0000Z-260821T2330Z/  
LA SALLE IL-LEE IL-DE KALB IL-  
558 PM CDT FRI AUG 21 2026  
 
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 630 PM CDT  
FOR NORTHWESTERN LA SALLE...SOUTHEASTERN LEE AND SOUTHWESTERN DE KALB  
COUNTIES...  
 
AT 557 PM CDT, A SEVERE THUNDERSTORM WAS LOCATED NORTHWEST OF  
MENDOTA, MOVING SOUTHEAST AT 20 MPH.  
 
HAZARD...PING PONG BALL SIZE HAIL AND 60 MPH WIND GUSTS.  
 
SOURCE...RADAR INDICATED.  
 
IMPACT...PEOPLE AND ANIMALS OUTDOORS WILL BE INJURED. EXPECT HAIL  
DAMAGE TO ROOFS, SIDING, WINDOWS, AND VEHICLES. EXPECT WIND  
DAMAGE TO ROOFS, SIDING, AND TREES.  
 
LOCATIONS IMPACTED INCLUDE...  
MENDOTA, EARLVILLE, LELAND, PAW PAW, COMPTON, TROY GROVE, WEST  
BROOKLYN, PRAIRIE CENTER, TRIUMPH, AND HARDING.  
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...  
 
FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF  
A BUILDING.  
 
REMAIN ALERT FOR A POSSIBLE TORNADO! TORNADOES CAN DEVELOP QUICKLY  
FROM SEVERE THUNDERSTORMS. IF YOU SPOT A TORNADO GO AT ONCE INTO THE  
BASEMENT OR SMALL CENTRAL ROOM IN A STURDY STRUCTURE.  
 
TORRENTIAL RAINFALL IS OCCURRING WITH THIS STORM, AND MAY LEAD TO  
FLASH FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED ROADWAYS.  
 
 
 
LAT...LON 4172 8912 4166 8872 4150 8878 4146 8892  
4143 8917 4158 8917 4159 8923 4163 8923  
TIME...MOT...LOC 2257Z 320DEG 19KT 4161 8916  
 
TORNADO...POSSIBLE  
HAIL THREAT...RADAR INDICATED  
MAX HAIL SIZE...1.50 IN  
WIND THREAT...RADAR INDICATED  
MAX WIND GUST...60 MPH  
 
 
 
RC  
CLICK HERE TO GO TO PREVIOUS BULLETINS.
The Nexlab IL Page
The Nexlab IN Page
Main Text Page