738  
FNUS73 KILX 261124  
FWSILX  
 
SPOT FORECAST FOR FLOOD DEBRIS BURN PILES...USFWS  
NATIONAL WEATHER SERVICE LINCOLN IL  
624 AM CDT THU APR 26 2018  
 
FORECAST IS BASED ON IGNITION TIME OF 0900 CDT ON APRIL 26.  
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
 
LIGHT AND VARIABLE WINDS WILL SHIFT TO WESTERLY UP  
TO 5 MPH BY AFTERNOON AS HIGH PRESSURE DRIFTS TO THE SOUTHEAST OF  
THE AREA. WINDS WILL CONTINUE TO INCREASE THROUGH FRIDAY, BECOMING  
GUSTY UP TO 25 MPH BY FRIDAY AFTERNOON. VENTILATION RATES/SMOKE  
DISPERSAL WILL BE POOR INITIALLY, IMPROVING DURING THE AFTERNOON  
AS MIXING HEIGHTS AND TRANSPORT WINDS INCREASE. NO PRECIPITATION  
IS EXPECTED FOR THE NEXT SEVERAL DAYS.  
   
REST OF TODAY
 
 
SKY/WEATHER.........SUNNY (15-25 PERCENT).  
CHANCE OF PCPN......0 PERCENT.  
LAL.................  
MAX TEMPERATURE.....AROUND 69.  
MIN HUMIDITY........28 PERCENT.  
WIND (20 FT)........LIGHT WINDS BECOMING WEST AROUND 5 MPH LATE IN  
THE AFTERNOON.  
MIXING HEIGHT.......1300-2200 FT AGL INCREASING TO 5700-6200 FT  
AGL.  
TRANSPORT WINDS.....SOUTH 5 TO 7 MPH SHIFTING TO THE WEST 7 TO 9  
MPH IN THE AFTERNOON.  
SMOKE DISPERSAL.....POOR TO GOOD (5800-50600 KNOT-FT).  
SMOKE DISPERSAL.....POOR TO GOOD (5800-50600 KNOT-FT).  
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED  
FIRE GROWTH.  
 
TIME (CDT) 9 AM 11 AM 1 PM 3 PM 5 PM  
SKY (%).........3 9 19 31 19  
WEATHER COV.....  
WEATHER TYPE....NONE NONE NONE NONE NONE  
TSTM COV........  
CHC OF PCPN (%).0 0 0 0 0  
LAL.............M M M M M  
TEMP............51 59 65 67 69  
RH..............59 44 34 30 30  
20 FT WIND......S 3 SW 2 W 2 W 3 W 5  
20 FT WIND GUST.5 5 5 5  
MIX HGT (FT)....1300 3400 5700 6200 6000  
TRANSPORT WIND..S 5 SW 7 W 7 W 8 W 9  
HAINES INDEX....4 4 4 4 4  
VRATE KT-FT/10006 19 34 44 51  
SDSPL KT-FT/10006 19 34 44 51  
   
TONIGHT
 
 
SKY/WEATHER.........PARTLY CLOUDY (25-35 PERCENT) THEN BECOMING  
MOSTLY CLOUDY (50-60 PERCENT) THEN BECOMING  
PARTLY CLOUDY (30-40 PERCENT).  
CHANCE OF PCPN......0 PERCENT.  
LAL.................  
MIN TEMPERATURE.....AROUND 44.  
MAX HUMIDITY........79 PERCENT.  
WIND (20 FT)........WEST WINDS AROUND 5 MPH EARLY IN THE EVENING  
BECOMING LIGHT, THEN BECOMING NORTHWEST 5 TO 7  
MPH AFTER MIDNIGHT.  
MIXING HEIGHT.......5100-5800 FT AGL DECREASING TO 0-1000 FT AGL.  
TRANSPORT WINDS.....WEST 5 TO 10 MPH SHIFTING TO THE NORTHWEST 15  
TO 18 MPH EARLY IN THE MORNING.  
SMOKE DISPERSAL.....POOR TO GOOD (9200-51600 KNOT-FT) DECREASING TO  
POOR TO FAIR (0-16000 KNOT-FT) IN THE LATE  
EVENING AND OVERNIGHT.  
SMOKE DISPERSAL.....POOR TO GOOD (9200-51600 KNOT-FT) DECREASING TO  
POOR TO FAIR (0-16000 KNOT-FT) IN THE LATE  
EVENING AND OVERNIGHT.  
HAINES INDEX........2 TO 4 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH TO OR LOW POTENTIAL FOR  
LARGE PLUME DOMINATED FIRE GROWTH.  
 
TIME (CDT) 6 PM 8 PM 10 PM MIDNGT 2 AM 4 AM  
SKY (%).........10 17 28 53 47 32  
WEATHER COV.....  
WEATHER TYPE....NONE NONE NONE NONE NONE NONE  
TSTM COV........  
CHC OF PCPN (%).0 0 0 0 0 0  
LAL.............M M M M M M  
TEMP............68 64 59 54 51 49  
RH..............32 40 49 57 63 66  
20 FT WIND......W 5 W 2 W 3 W 5 NW 7 N 7  
20 FT WIND GUST. 5 5 10 10  
MIX HGT (FT)....5800 3500 200 BLW100 400 1000  
TRANSPORT WIND..W 10 W 8 SW 5 W 5 W 10 N 18  
HAINES INDEX....4 4 4 4 3 2  
VRATE KT-FT/100052 26 1 0 4 16  
SDSPL KT-FT/100052 26 1 0 4 16  
   
FRIDAY
 
 
SKY/WEATHER.........SUNNY (5-15 PERCENT).  
CHANCE OF PCPN......10 PERCENT.  
LAL.................  
MAX TEMPERATURE.....AROUND 68.  
MIN HUMIDITY........32 PERCENT.  
WIND (20 FT)........WEST WINDS 7 TO 12 MPH WITH GUSTS TO AROUND 25  
MPH.  
MIXING HEIGHT.......400-1700 FT AGL INCREASING TO 6000-7400 FT AGL.  
TRANSPORT WINDS.....WEST 13 TO 21 MPH INCREASING TO 24 TO 25 MPH  
LATE IN THE AFTERNOON.  
SMOKE DISPERSAL.....POOR TO GOOD (5200-39300 KNOT-FT) INCREASING TO  
EXCELLENT (135800 KNOT-FT).  
SMOKE DISPERSAL.....POOR TO GOOD (5200-39300 KNOT-FT) INCREASING TO  
EXCELLENT (135800 KNOT-FT).  
HAINES INDEX........4 TO 5 OR LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH TO OR MODERATE POTENTIAL  
FOR LARGE PLUME DOMINATED FIRE GROWTH.  
 
TIME (CDT) 6 AM 8 AM 10 AM NOON 2 PM 4 PM  
SKY (%).........17 8 3 6 7 8  
WEATHER COV.....  
WEATHER TYPE....NONE NONE NONE NONE NONE NONE  
TSTM COV........  
CHC OF PCPN (%).0 0 0 0 10 10  
LAL.............M M M M M M  
TEMP............46 47 55 62 66 68  
RH..............73 71 53 39 33 32  
20 FT WIND......NW 7 NW 7 NW 7 W 7 W 9 W 12  
20 FT WIND GUST.10 10 10 10 15 25  
MIX HGT (FT)....400 1700 4500 5600 6700 7400  
TRANSPORT WIND..N 15 N 13 NW 16 NW 16 W 18 W 24  
HAINES INDEX....4 5 5 4 4 5  
VRATE KT-FT/10005 19 62 76 108 152  
SDSPL KT-FT/10005 19 62 76 108 152  
 

 
FORECASTER...37  
REQUESTED BY...DAVID JONES  
TYPE OF REQUEST...PRESCRIBED  
.TAG 1807902.0/ILX  
.EMAIL DAVID_JONES@FWS.GOV  
 
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