865  
FXUS63 KILX 101106  
AFDILX  
 
AREA FORECAST DISCUSSION  
NATIONAL WEATHER SERVICE LINCOLN IL  
606 AM CDT SAT OCT 10 2026  
   
KEY MESSAGES
 
 
- THE REMNANTS OF HURRICANE ISAIAS ARE EXPECTED TO PASS MOSTLY  
SOUTHEAST OF IL THIS WEEKEND. HOWEVER, THERE IS A 30 TO 60  
PERCENT CHANCE FOR LIGHT RAIN UNDER A QUARTER INCH FROM NEAR  
I-70 SOUTHEASTWARD TONIGHT.  
 
- NEAR RECORD WARM TEMPERATURES ARE EXPECTED MONDAY WITH HIGHS  
FROM THE UPPER 80S TO LOWER 90S.  
 
- A COLD FRONT TUESDAY WILL BRING A SLIGHT CHANCE FOR SHOWERS  
AND THUNDERSTORMS ALONG WITH A TREND TOWARD COOLER  
TEMPERATURES.  
 
- SEVERAL CHANCES FOR RAIN ARE POSSIBLE TUESDAY NIGHT THROUGH  
THURSDAY.  
 

 
   
DISCUSSION
 
 
ISSUED AT 209 AM CDT SAT OCT 10 2026  
 
REMNANTS OF HURRICANE ISAIAS ARE NOW FORECAST TO PASS THROUGH  
CENTRAL TN AND EASTERN KY, WITH PROSPECTS OF ANY SIGNIFICANT  
PRECIPITATION IN SOUTHEAST IL VERY LOW. SHORT-RANGE ENSEMBLES  
NOW ENCOMPASSING THE RAINFALL FOR CENTRAL IL DEPICT A MAXIMUM OF  
30 PERCENT CHANCE OF PRECIPITATION EXCEEDING A QUARTER INCH  
NEAR LAWRENCEVILLE, AND 0 PERCENT NORTH OF I-70. TIMING LOOKS TO  
BE FROM EARLY EVENING TO AROUND SUNRISE SUNDAY.  
 
BEHIND ISAIAS, A RIDGE WILL AMPLIFY INTO THE MIDWEST, WITH DRY  
CONDITIONS SUNDAY AND MONDAY, FOLLOWED BY A CANADIAN SHORTWAVE  
SUPPRESSING THE RIDGE AND DRIVING A COLD FRONT THROUGH IL  
TUESDAY. THIS WILL BRING A SLIGHT CHANCE FOR SHOWERS AND  
THUNDERSTORMS. A BETTER CHANCE FOR PRECIPITATION WILL DEVELOP  
MIDWEEK AND CONTINUE THROUGH THURSDAY AS A DEEP CENTRAL ROCKIES  
UPPER LOW PRODUCES A STRONG RETURN OF GULF MOISTURE INTERACTING  
WITH THE STALLED COLD FRONT, FOLLOWED BY THE ROCKIES LOW AND A  
CANADIAN LOW MERGING AND PROGRESSING TOWARD THE MIDWEST. THE  
EVENTUAL EVOLUTION OF THE SYSTEM REMAINS HIGHLY UNCERTAIN, WITH  
VARIOUS MODELS DEPICTING MUCH DIFFERENT SCENARIOS BY NEXT  
WEEKEND, BUT EVENTUALLY SUGGESTING A DRY PATTERN BY THE WEEKEND.  
 
TEMPERATURES WILL BE SUPPRESSED DOWN A FEW DEGREES TODAY AND SUNDAY,  
OUT OF NEAR RECORD TERRITORY, WITH UPPER 70S TO MID 80S HIGHS  
EXPECTED. STRONG WARM ADVECTION SUNDAY INTO MONDAY SHOULD YIELD NEAR  
RECORD WARMTH ON MONDAY, WITH UPPER 80S TO LOWER 90S FOR HIGHS. THE  
COLD FRONT TUESDAY SHOULD BRING TEMPERATURES TRENDING DOWNWARD FOR  
MIDWEEK, WITH TEMPERATURES DOWN A FEW DEGREES FOR TUESDAY, AND HIGHS  
IN THE 70S WEDNESDAY AND THURSDAY. MODEL BLENDS TREND TOWARD FURTHER  
COOLING FRIDAY AND SATURDAY, WITH HIGHS IN THE 60S, BUT 5TH TO  
95TH PERCENTILE 12Z ENSEMBLE RANGE IS FROM HIGHS IN THE 40S TO  
70S FOR SATURDAY.  
 

 
   
AVIATION /06Z TAFS THROUGH 06Z SUNDAY/
 
 
ISSUED AT 606 AM CDT SAT OCT 10 2026  
 
VFR CONDITIONS ARE EXPECTED THE UPCOMING 24 HOURS, ALTHOUGH HIGH  
AND MID CLOUDS ASSOCIATED WITH REMNANTS OF HURRICANE ISAIAS  
PASSING BY TO THE SOUTHEAST WILL AFFECT THE CENTRAL IL  
TERMINALS, ESPECIALLY TOWARD EASTERN IL. WINDS S-SE 6-10 KTS.  
 

 
   
ILX WATCHES/WARNINGS/ADVISORIES
 
 
NONE.  
 

 
 

 
 
KEY MESSAGES...37  
DISCUSSION...37  
AVIATION...37  
 
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