109   
FNUS73 KLOT 240831  
FWSLOT  
  
SPOT FORECAST FOR FPDDC PRESCRIBED FIRE...FOREST PRESERVE DISTRICT OF DUPAGE COUNTY  
NATIONAL WEATHER SERVICE CHICAGO IL  
331 AM CDT TUE MAR 24 2026  
  
FORECAST IS BASED ON IGNITION TIME OF 0800 CDT ON MARCH 24.   
IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE NATIONAL WEATHER  
SERVICE.  
  
PLEASE CONTACT OUR OFFICE AT (815) 834-0666 IF YOU HAVE QUESTIONS  
OR CONCERNS WITH THIS FORECAST.  
   
DISCUSSION  
  
SOUTH WINDS 5 TO 10 MPH ARE EXPECTED AROUND IGNITION, PICKING UP   
SLIGHTLY TO 8-13 MPH LATER THIS MORNING INTO THE AFTERNOON. A   
WEAKENING LAKE BREEZE COULD RESULT IN WINDS BECOMING LIGHT EAST OR  
SOUTHEASTERLY AFTER 5 OR 6 PM.   
   
REST OF TODAY  
  
SKY/WEATHER.........PARTLY CLOUDY THIS MORNING BECOMING MOSTLY   
                    CLOUDY THIS AFTERNOON.   
TEMPERATURE.........31 AT IGNITION...MAX 52.   
RH..................60 PERCENT AT IGNITION...MIN 27 PERCENT.   
WIND (20 FT)........WINDS SOUTH AT 8 MPH AT IGNITION...OTHERWISE   
                    SOUTH WINDS 6 TO 9 MPH DECREASING TO AROUND 5   
                    MPH LATE IN THE AFTERNOON.   
CHANCE OF PCPN......10 PERCENT.   
TRANSPORT WINDS.....SOUTH 9 TO 14 MPH DECREASING TO 6 TO 7 MPH LATE   
                    IN THE AFTERNOON.   
MIXING HEIGHT.......1100 FT AGL AT IGNITION...OTHERWISE 2900 FT   
                    AGL.   
SMOKE DISPERSAL.....POOR /12600 KNOT-FT/ AT IGNITION. MAX...FAIR   
                    /25600 KNOT-FT/.   
  
TIME (CDT)      8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM   
SKY (%).........51  59  56  67  77  74  80  84  88  82    
WEATHER COV.....                                          
WEATHER TYPE....                                          
TEMP............31  34  37  40  44  47  49  51  52  52    
RH..............60  55  50  45  41  36  32  29  27  28    
20 FT WIND DIR..180 190 190 190 200 200 200 190 190 180   
20 FT WIND SPD..8   9   10  10  10  9   8   7   6   6     
20 FT WIND GUST.14  15  17  16  16  15  14  12  10  9     
MIX HGT (KFT)...1.1 1.2 1.7 1.9 2.1 2.4 2.6 2.9 2.8 2.4   
TRANSP WIND DIR.180 190 190 190 190 200 200 190 190 180   
TRANSP WIND SPD.13  14  14  14  14  12  10  9   7   6     
CHC OF PCPN (%).10  0   0   0   0   0   0   0   0   0     
VRATE KT-FT/1K..13  14  20  23  26  24  24  23  17  12    
  
  
FORECASTER...IZZI  
REQUESTED BY...TANYA ZIOBROWSKI  
TYPE OF REQUEST...PRESCRIBED  
.TAG 2607330.0/LOT  
.DELDT 03/24/26  
.FORMATTERVERSION 2.0.0  
 
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