918  
FNUS73 KLOT 281521  
FWSLOT  
 
SPOT FORECAST FOR WLFPD BURNS...WLFPD  
NATIONAL WEATHER SERVICE CHICAGO IL  
1021 AM CDT FRI MAR 28 2025  
 
FORECAST IS BASED ON IGNITION TIME OF 1800 CDT ON MARCH 28.  
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
 
 
MOSTLY CLEAR SKIES ARE EXPECTED TONIGHT WITH PERSISTENT SOUTHWEST  
GUSTS INTO SATURDAY MORNING. A COLD FRONT IS EXPECTED TO SHIFT  
SOUTHWESTWARD OVER THE BURN SITE SOMETIME MID TO LATE AFTERNOON,  
WITH AN ABRUPT WIND SHIFT FROM SOUTHWEST TO NORTHEAST, THOUGH THE  
EXACT TIMING IS STILL UNCERTAIN THIS FAR OUT. CLOUD COVER WILL  
INCREASE THROUGH THE DAY ON SATURDAY, WITH INCREASING LIGHT RAIN  
SHOWER OR DRIZZLE CHANCES THROUGH THE AFTERNOON AROUND AND BEHIND  
THE COLD FRONT.  
   
TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLEAR.  
TEMPERATURE.........73 AT IGNITION...MIN 57.  
RH..................51 PERCENT AT IGNITION...MAX 86 PERCENT.  
WIND (20 FT)........WINDS SOUTHWEST AT 24 MPH AT  
IGNITION...OTHERWISE SOUTHWEST WINDS 20 TO 22  
MPH WITH GUSTS TO AROUND 39 MPH DECREASING TO  
17 TO 18 MPH WITH GUSTS TO AROUND 32 MPH  
OVERNIGHT.  
CHANCE OF PCPN......0 PERCENT.  
TRANSPORT WINDS.....SOUTHWEST 25 TO 29 MPH.  
MIXING HEIGHT.......2200 FT AGL AT IGNITION...OTHERWISE 900 FT AGL.  
SMOKE DISPERSAL.....GOOD /54500 KNOT-FT/ AT IGNITION. MIN...FAIR  
/22800 KNOT-FT/.  
 
TIME (CDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM  
SKY (%).........20 16 15 14 12 12 12 11 18 26 33 39  
WEATHER COV.....  
WEATHER TYPE....  
TEMP............73 70 68 67 65 64 62 61 60 59 58 57  
RH..............51 57 59 59 63 65 70 72 75 80 83 86  
20 FT WIND DIR..220 220 220 220 220 220 230 230 230 230 230 230  
20 FT WIND SPD..24 23 23 23 23 23 22 22 21 21 20 18  
20 FT WIND GUST.39 38 37 37 37 36 35 33 32 31 30 28  
MIX HGT (KFT)...2.2 1.0 1.0 0.9 1.0 1.0 1.0 1.2 1.1 1.1 1.1 1.1  
TRANSP WIND DIR.230 230 220 220 230 230 230 240 240 240 240 230  
TRANSP WIND SPD.29 28 29 29 29 29 29 29 28 28 25 25  
CHC OF PCPN (%).0 0 0 0 0 0 0 0 0 0 0 0  
VRATE KT-FT/1K..55 24 23 23 25 26 25 30 26 25 24 23  
   
SATURDAY
 
 
SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY.  
CHANCE OF RAIN SHOWERS IN THE AFTERNOON.  
TEMPERATURE.........MAX 66.  
RH..................MIN 70 PERCENT.  
WIND (20 FT)........SOUTHWEST WINDS 13 TO 16 MPH SHIFTING TO THE  
NORTHEAST MID TO LATE AFTERNOON.  
CHANCE OF PCPN......50 PERCENT.  
TRANSPORT WINDS.....SOUTHWEST 21 TO 24 MPH BECOMING SOUTH 15 TO 17  
MPH EARLY IN THE AFTERNOON, THEN SHIFTING TO  
THE EAST AROUND 16 MPH LATE IN THE AFTERNOON.  
MIXING HEIGHT.......2600 FT AGL.  
SMOKE DISPERSAL.....FAIR (13300 KNOT-FT) EARLY IN THE MORNING  
INCREASING TO GOOD (47900 KNOT-FT) IN THE  
AFTERNOON.  
 
TIME (CDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM  
SKY (%).........46 52 53 55 56 65 74 83 83 84 84 84  
WEATHER COV..... SCH SCH SCH CHC CHC CHC CHC CHC  
WEATHER TYPE.... RW RW RW RW RW RW RW RW  
TEMP............57 58 59 62 64 66 66 66 64 60 53 49  
RH..............86 83 83 75 73 70 73 73 75 78 86 96  
20 FT WIND DIR..230 230 230 230 230 220 220 220 210 080 080 070  
20 FT WIND SPD..17 16 15 15 15 14 14 13 12 12 12 12  
20 FT WIND GUST.25 24 24 24 25 23 21 20 18 18 17 17  
MIX HGT (KFT)...0.9 0.9 1.2 1.5 1.7 2.0 2.3 2.6 2.1 1.6 1.3 1.0  
TRANSP WIND DIR.230 230 230 230 230 230 230 230 210 150 110 100  
TRANSP WIND SPD.24 21 23 23 24 24 24 21 16 15 16 16  
CHC OF PCPN (%).0 10 10 10 10 10 20 30 40 40 50 50  
VRATE KT-FT/1K..19 17 24 30 36 43 48 47 29 21 18 13  
   
SATURDAY NIGHT
 
 
SKY/WEATHER.........CLOUDY. RAIN SHOWERS LIKELY IN THE EVENING.  
RAIN SHOWERS OVERNIGHT. SLIGHT CHANCE OF  
THUNDERSTORMS THROUGH THE NIGHT.  
TEMPERATURE.........MIN 42.  
RH..................MAX 100 PERCENT.  
WIND (20 FT)........NORTHEAST WINDS 10 TO 13 MPH SHIFTING TO THE  
EAST AROUND 9 MPH IN THE LATE EVENING AND  
OVERNIGHT.  
CHANCE OF PCPN......80 PERCENT.  
TRANSPORT WINDS.....EAST 10 TO 15 MPH SHIFTING TO THE SOUTHEAST 9  
TO 10 MPH.  
MIXING HEIGHT.......400 FT AGL.  
SMOKE DISPERSAL.....POOR (3400 KNOT-FT).  
 
TIME (CDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM  
SKY (%).........84 84 87 89 92 93 93 94 93 91 90 91  
WEATHER COV.....CHC LKY LKY LKY LKY LKY LKY DEF DEF DEF DEF DEF  
WEATHER TYPE....RW RW RW RW RW RW RW RW RW RW RW RW  
TEMP............46 44 43 42 42 42 42 42 43 44 45 47  
RH..............93 93 96 100 100 100 100 100 100 100 96 93  
20 FT WIND DIR..060 060 070 080 080 080 090 090 100 110 120 130  
20 FT WIND SPD..13 14 13 12 10 10 10 10 10 10 10 10  
20 FT WIND GUST.18 21 20 18 17 17 17 17 17 17 17 17  
MIX HGT (KFT)...0.9 0.9 0.9 0.9 0.9 0.8 0.7 0.7 0.6 0.5 0.4 0.4  
TRANSP WIND DIR.100 090 090 100 100 110 120 130 120 110 110 120  
TRANSP WIND SPD.15 15 14 14 13 12 12 10 10 9 9 10  
CHC OF PCPN (%).50 70 70 70 70 70 70 80 80 80 80 80  
VRATE KT-FT/1K..13 12 11 11 10 9 7 6 5 4 3 4  
 

 
FORECASTER...KLUBER  
REQUESTED BY...A. D.  
TYPE OF REQUEST...PRESCRIBED  
.TAG 2508344.0/LOT  
.DELDT 03/28/25  
.FORMATTERVERSION 2.0.0  
 
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