598  
WWUS83 KLSX 190200  
SPSLSX  
 
SPECIAL WEATHER STATEMENT  
NATIONAL WEATHER SERVICE ST LOUIS MO  
900 PM CDT MON SEP 18 2017  
 
ILZ100-190245-  
MADISON IL-  
900 PM CDT MON SEP 18 2017  
 
...SIGNIFICANT WEATHER ADVISORY FOR SOUTHEASTERN MADISON COUNTY IN  
SOUTHWESTERN ILLINOIS UNTIL 945 PM CDT...  
 
AT 859 PM CDT, DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM OVER  
COLLINSVILLE, MOVING EAST AT 30 MPH.  
 
WINDS IN EXCESS OF 40 MPH WILL BE POSSIBLE WITH THIS STORM.  
 
LOCATIONS IMPACTED INCLUDE...  
COLLINSVILLE, EDWARDSVILLE, GLEN CARBON, HIGHLAND, TROY, MARYVILLE,  
ST. JACOB, MARINE, PIERRON, GRANTFORK AND KUHN.  
 
THIS INCLUDES THE FOLLOWING HIGHWAYS...  
INTERSTATE 70 IN ILLINOIS BETWEEN EXITS 21 AND 30.  
INTERSTATE 55 IN ILLINOIS NEAR EXIT 23.  
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...  
 
TORRENTIAL RAINFALL IS ALSO OCCURRING WITH THIS STORM, AND MAY LEAD  
TO LOCALIZED FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED  
ROADWAYS.  
 
FREQUENT CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THIS STORM.  
LIGHTNING CAN STRIKE 10 MILES AWAY FROM A THUNDERSTORM. SEEK A SAFE  
SHELTER INSIDE A BUILDING OR VEHICLE.  
 
THIS STORM MAY INTENSIFY, SO BE CERTAIN TO MONITOR LOCAL RADIO  
STATIONS AND AVAILABLE TELEVISION STATIONS FOR ADDITIONAL INFORMATION  
AND POSSIBLE WARNINGS FROM THE NATIONAL WEATHER SERVICE.  
 
TO REPORT SEVERE WEATHER, CONTACT YOUR NEAREST LAW ENFORCEMENT  
AGENCY. THEY WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE  
OFFICE IN ST LOUIS.  
 

 
 
LAT...LON 3866 8998 3878 8998 3886 8960 3866 8960  
TIME...MOT...LOC 0159Z 264DEG 28KT 3869 9000  
 

 
 
TES  
 
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