311  
FNUS73 KILX 071147  
FWSILX  
 
SPOT FORECAST FOR BUFFALO TRACE MILESTONE PRAIRIE RX BURN...CHAMPAIGN COUNTY FOREST PRESERVE DISTRICT  
NATIONAL WEATHER SERVICE LINCOLN IL  
647 AM CDT WED APR 7 2021  
 
FORECAST IS BASED ON IGNITION TIME OF 1300 CDT ON APRIL 07.  
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER  
SERVICE.  
 
PLEASE CONTACT OUR OFFICE AT (217) 732-3089 IF YOU HAVE QUESTIONS  
OR CONCERNS WITH THIS FORECAST.  
   
DISCUSSION
 
 
   
REST OF TODAY
 
 
SKY/WEATHER.........MOSTLY CLOUDY (70-80 PERCENT).  
CHANCE OF PCPN......0 PERCENT.  
LAL.................1.  
MAX TEMPERATURE.....AROUND 77.  
MIN HUMIDITY........50 PERCENT.  
WIND (20 FT)........SOUTH WINDS 15 TO 16 MPH WITH GUSTS TO AROUND  
24 MPH.  
MIXING HEIGHT.......4800 FT AGL.  
TRANSPORT WINDS.....SOUTH 23 TO 24 MPH.  
SMOKE DISPERSAL.....EXCELLENT (79700 KNOT-FT).  
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED  
FIRE GROWTH LATE IN THE AFTERNOON.  
 
TIME (CDT) 1 PM 3 PM 5 PM  
SKY (%).........78 76 75  
WEATHER COV.....  
WEATHER TYPE....NONE NONE NONE  
TSTM COV........  
CHC OF PCPN (%)..0 0 0  
LAL..............2 2 2  
TEMP.............76 77 76  
RH...............52 50 52  
20 FT WIND.......S 15 S 16 S 16  
20 FT WIND GUST..23 24 23  
MIX HGT (FT).....4000 4800 4400  
TRANSPORT WIND...S 23 S 23 S 24  
HAINES INDEX.....4 M M  
VRATE KT-FT/1000.80 96 92  
SDSPL KT-FT/1000.80 96 92  
   
TONIGHT
 
 
SKY/WEATHER.........PARTLY CLOUDY (20-30 PERCENT) THEN BECOMING  
MOSTLY CLOUDY (70-80 PERCENT). CHANCE OF  
SHOWERS IN THE EVENING. CHANCE OF THUNDERSTORMS  
THROUGH THE NIGHT. SHOWERS LIKELY OVERNIGHT.  
CHANCE OF PCPN......60 PERCENT.  
LAL.................1 UNTIL 2200, THEN 3 UNTIL 0100, THEN 2.  
MIN TEMPERATURE.....AROUND 56.  
MAX HUMIDITY........90 PERCENT.  
WIND (20 FT)........SOUTH WINDS 12 TO 15 MPH WITH GUSTS TO AROUND  
23 MPH. GUSTY AND ERRATIC WINDS EXPECTED NEAR  
THUNDERSTORMS LATE IN THE EVENING. GUSTY AND  
ERRATIC WINDS EXPECTED NEAR THUNDERSTORMS  
OVERNIGHT.  
MIXING HEIGHT.......1100 FT AGL.  
TRANSPORT WINDS.....SOUTH 22 TO 31 MPH DECREASING TO 18 TO 20 MPH  
AFTER 3 AM.  
SMOKE DISPERSAL.....GOOD (55800 KNOT-FT) EARLY IN THE EVENING  
DECREASING TO FAIR (18900 KNOT-FT) LATE IN THE  
NIGHT.  
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
 
TIME (CDT) 6 PM 8 PM 10 PM MIDNGT 2 AM 4 AM  
SKY (%).........26 75 64 75 76 83  
WEATHER COV..... S CHC CHANCE S CHC CHANCE  
WEATHER TYPE....NONE NONE RNSHWR RNSHWR RNSHWR RNSHWR  
TSTM COV........ S CHC CHANCE S CHC S CHC  
CHC OF PCPN (%)..10 10 20 50 20 40  
LAL..............2 3 3 3 2 2  
TEMP.............74 70 67 65 63 61  
RH...............59 66 73 78 81 81  
20 FT WIND.......S 15 S 13 SE 13 S 14 S 12 S 12  
20 FT WIND GUST..23 21 23 22 22 20  
MIX HGT (FT).....2800 1400 1200 1500 1400 1200  
TRANSPORT WIND...S 23 S 22 SE 24 S 31 S 22 S 18  
HAINES INDEX.....M M 3 M M 3  
VRATE KT-FT/1000.56 26 25 40 27 19  
SDSPL KT-FT/1000.56 26 25 40 27 19  
   
THURSDAY
 
 
SKY/WEATHER.........MOSTLY CLOUDY (80-90 PERCENT). CHANCE OF RAIN  
SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS  
EARLY IN THE MORNING, THEN RAIN SHOWERS LIKELY  
EARLY IN THE MORNING. CHANCE OF RAIN SHOWERS IN  
THE LATE MORNING AND AFTERNOON.  
CHANCE OF PCPN......70 PERCENT.  
LAL.................2 UNTIL 0700, THEN 1.  
MAX TEMPERATURE.....AROUND 60.  
MIN HUMIDITY........60 PERCENT.  
WIND (20 FT)........SOUTH WINDS 10 TO 14 MPH WITH GUSTS TO AROUND  
24 MPH. GUSTY AND ERRATIC WINDS EXPECTED NEAR  
THUNDERSTORMS EARLY IN THE MORNING.  
MIXING HEIGHT.......3500 FT AGL.  
TRANSPORT WINDS.....SOUTHWEST 18 TO 23 MPH.  
SMOKE DISPERSAL.....FAIR (25600 KNOT-FT) EARLY IN THE MORNING  
INCREASING TO EXCELLENT (64500 KNOT-FT) IN THE  
AFTERNOON.  
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
 
TIME (CDT) 6 AM 8 AM 10 AM NOON 2 PM 4 PM  
SKY (%).........88 91 84 78 93 93  
WEATHER COV.....CHANCE LIKELY CHANCE CHANCE CHANCE CHANCE  
WEATHER TYPE....RNSHWR RNSHWR RNSHWR RNSHWR RNSHWR RNSHWR  
TSTM COV........S CHC  
CHC OF PCPN (%)..50 70 50 50 30 30  
LAL..............2 1 1 1 1 1  
TEMP.............58 56 57 59 60 58  
RH...............86 90 83 78 72 62  
20 FT WIND.......S 12 S 10 S 10 S 13 S 14 S 13  
20 FT WIND GUST..19 19 19 23 24 23  
MIX HGT (FT).....1500 1800 2500 3500 3000 3200  
TRANSPORT WIND...S 20 S 20 S 18 S 22 S 23 SW 23  
HAINES INDEX.....M M 3 M M 3  
VRATE KT-FT/1000.26 31 40 65 62 63  
SDSPL KT-FT/1000.26 31 40 65 62 63  
 

 
FORECASTER...AUTEN  
REQUESTED BY...PETER GOODSPEED  
TYPE OF REQUEST...PRESCRIBED  
.TAG 2108205.0/ILX  
.DELDT 04/07/21  
.FORMATTERVERSION 1.0.26  
.EMAIL PGOODSPEED@CCFPD.ORG  
 
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