304  
FNUS73 KLSX 251416  
FWSLSX  
 
SPOT FORECAST FOR BUCKHORN UNIT BURN...IDNR  
NATIONAL WEATHER SERVICE SAINT LOUIS MO  
916 AM CDT FRI AUG 25 2017  
 
FORECAST IS BASED ON IGNITION TIME OF 1200 CDT ON AUGUST 25.  
IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE  
NATIONAL WEATHER SERVICE.  
   
DISCUSSION
 
 
CONDITIONS TODAY WILL BE VERY SIMILAR TO YESTERDAY. THE NEXT  
CHANCE FOR WIDESPREAD RAIN IS FROM LATE SATURDAY NIGHT INTO  
EARLY NEXT WEEK.  
 
   
REST OF TODAY
 
 
SKY/WEATHER.........MOSTLY SUNNY (30-40 PERCENT).  
CHANCE OF PCPN......0 PERCENT.  
LAL.................NO TSTMS.  
TEMPERATURE.........73 AT IGNITION...MAX 78.  
RH..................59 PERCENT AT IGNITION...MIN 45 PERCENT.  
WIND (20 FT)........WINDS EAST AT 6 MPH AT IGNITION...OTHERWISE  
EAST WINDS 6 TO 7 MPH.  
EYE LEVEL WINDS.....EAST WINDS 2-3 MPH. ADJUSTMENT FACTOR OF 0.4  
FOR UNSHELTERED FUELS AND FUEL MODEL 3 (TALL  
GRASS).  
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED  
FIRE GROWTH.  
MIXING HEIGHT.......2800 FT AT IGNITION,  
4000 FT AGL AT MAX HEATING.  
TRANSPORT WINDS.....SOUTHEAST AROUND 9 MPH.  
SMOKE DISPERSAL.....POOR (5030 M/S-M) AT MAX HEATING.  
 
TIME (CDT) NOON 2 PM 4 PM 6 PM 8 PM 10 PM  
SKY (%).........31 33 37 34 37 36  
WEATHER COV.....  
WEATHER TYPE....NONE NONE NONE NONE NONE NONE  
TSTM COV........  
CWR.............0 0 0 0 0 0  
LAL.............1 1 1 1 1 1  
TEMP............73 76 78 76 71 66  
RH..............59 52 50 56 66 73  
20 FT WIND......E 6 E 6 E 7 E 6 E 5 E 4  
20 FT WIND GUST.8 8 9 8 7 6  
   
TONIGHT
 
 
SKY/WEATHER.........PARTLY CLOUDY (30-40 PERCENT).  
CHANCE OF PCPN......0 PERCENT.  
LAL.................NO TSTMS.  
TEMPERATURE.........MIN 57.  
RH..................MAX 95 PERCENT.  
WIND (20 FT)........EAST WINDS AROUND 5 MPH EARLY IN THE EVENING  
BECOMING LIGHT.  
EYE LEVEL WINDS.....EAST WINDS AROUND 2 MPH EARLY IN THE EVENING  
BECOMING LIGHT. ADJUSTMENT FACTOR OF 0.4 FOR  
UNSHELTERED FUELS AND FUEL MODEL 3 (TALL  
GRASS).  
HAINES INDEX........N/A.  
MIXING HEIGHT.......N/A.  
TRANSPORT WINDS.....N/A.  
SMOKE DISPERSAL.....N/A.  
   
SATURDAY
 
 
SKY/WEATHER.........MOSTLY SUNNY (30-40 PERCENT).  
CHANCE OF PCPN......0 PERCENT.  
LAL.................NO TSTMS.  
TEMPERATURE.........MAX 81.  
RH..................MIN 44 PERCENT.  
WIND (20 FT)........LIGHT WINDS BECOMING SOUTHEAST 5 TO 7 MPH IN  
THE LATE MORNING AND AFTERNOON.  
EYE LEVEL WINDS.....LIGHT WINDS BECOMING SOUTHEAST 2-3 MPH IN THE  
LATE MORNING AND AFTERNOON. ADJUSTMENT FACTOR  
OF 0.4 FOR UNSHELTERED FUELS AND FUEL MODEL  
3 (TALL GRASS).  
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
MIXING HEIGHT.......4100 FT AGL AT MAX HEATING.  
TRANSPORT WINDS.....SOUTH AROUND 10 MPH.  
SMOKE DISPERSAL.....POOR (5800 M/S-M) AT MAX HEATING.  
 

 
FORECASTER...KANOFSKY  
REQUESTED BY...SPENCER WOODWARD  
TYPE OF REQUEST...PRESCRIBED  
.TAG 1714844.0/LSX  
 
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