493  
FLUS43 KLSX 102055  
HWOLSX  
 
HAZARDOUS WEATHER OUTLOOK  
NATIONAL WEATHER SERVICE ST LOUIS MO  
355 PM CDT SUN MAY 10 2026  
 
ILZ058>060-064-065-069-070-074-079-095>102-MOZ018-019-026-027-  
034>036-041-042-047>052-059>065-072>075-084-085-099-112100-  
GREENE IL-MACOUPIN IL-MONTGOMERY IL-BOND IL-FAYETTE IL-CLINTON IL-  
MARION IL-WASHINGTON IL-RANDOLPH IL-ADAMS IL-BROWN IL-PIKE IL-  
CALHOUN IL-JERSEY IL-MADISON IL-SAINT CLAIR IL-MONROE IL-KNOX MO-  
LEWIS MO-SHELBY MO-MARION MO-MONROE MO-RALLS MO-PIKE MO-BOONE MO-  
AUDRAIN MO-MONITEAU MO-COLE MO-OSAGE MO-CALLAWAY MO-MONTGOMERY MO-  
LINCOLN MO-GASCONADE MO-WARREN MO-SAINT CHARLES MO-FRANKLIN MO-  
SAINT LOUIS MO-SAINT LOUIS CITY MO-JEFFERSON MO-CRAWFORD MO-  
WASHINGTON MO-SAINT FRANCOIS MO-SAINTE GENEVIEVE MO-IRON MO-  
MADISON MO-REYNOLDS MO-  
355 PM CDT SUN MAY 10 2026  
 
THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF EASTERN AND  
CENTRAL MISSOURI AS WELL AS WEST CENTRAL AND SOUTHWEST ILLINOIS.  
   
DAYS ONE THROUGH SEVEN  
THIS AFTERNOON THROUGH SATURDAY.  
 
MORE DETAILED INFORMATION CAN BE ACCESSED AT:  
HTTPS://WWW.WEATHER.GOV/MEDIA/LSX/DSSPACKET.PDF  
 
THE AREA FORECAST DISCUSSION IS AVAILABLE AT:  
HTTPS://FORECAST.WEATHER.GOV/  
PRODUCT.PHP?ISSUEDBY=LSX&PRODUCT=AFD&SITE=LSX  
   
KEY MESSAGES  
 
- THE CHANCE FOR A BRIEF ROUND OF SHOWERS AND THUNDERSTORMS HAS  
INCREASED (30-70%) LATE TUESDAY AFTERNOON AND EVENING. SEVERE  
STORMS ARE NOT CURRENTLY EXPECTED, BUT THERE IS A LIMITED  
POTENTIAL FOR SMALL HAIL AND GUSTY WINDS.  
 
- TEMPERATURES WILL FLUCTUATE TOMORROW THROUGH WEDNESDAY, BUT A  
PROLONGED PERIOD OF ABOVE AVERAGE TEMPERATURES IS EXPECTED  
THURSDAY THROUGH THE WEEKEND. HOWEVER, CONFIDENCE IS LOW  
REGARDING JUST HOW FAR ABOVE AVERAGE THESE TEMPERATURES WILL  
REACH, DUE IN PART TO INCREASING WEEKEND SHOWER CHANCES.  
 
NOTE: STARTING MAY 29, 2026, THIS OUTLOOK PRODUCT WILL BE  
DISCONTINUED. PLEASE SEE THE ABOVE PRODUCTS FOR MORE DETAILED  
FORECAST INFORMATION.  
 
 
 
WFO LSX  
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