527  
FNUS73 KLSX 201340  
FWSLSX  
 
SPOT FORECAST FOR PALISADES PRESCRIBED FIRE...IDNR  
NATIONAL WEATHER SERVICE SAINT LOUIS MO  
740 AM CST MON NOV 20 2017  
 
FORECAST IS BASED ON IGNITION TIME OF 0900 CST ON NOVEMBER 20.  
IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE  
NATIONAL WEATHER SERVICE.  
   
DISCUSSION
 
 
SOUTH OR SOUTHWEST WINDS OF 10 TO 15 MPH WITH HIGHER GUSTS CAN BE EXPECTED  
TODAY WITH A SURFACE RIDGE OVER THE TENNESSEE VALLEY REGION. THE AFTERNOON  
RELATIVE HUMIDITY WILL BE QUITE LOW TODAY, DOWN TO AROUND 25 PERCENT ACROSS  
CENTRAL MISSOURI. DRY FUELS, RELATIVELY WARM TEMPERATURES, SUSTAINED  
WINDS OF 10 TO 15 MPH, AND LOW RELATIVE HUMIDITY VALUES WILL LEAD TO  
HEIGHTENED FIRE DANGER ALONG AND WEST OF THE MISSISSIPPI RIVER. A COLD  
FRONT WILL DROP SOUTHEASTWARD THROUGH OUR AREA ON TUESDAY LEADING TO COLDER  
CONDITIONS TUESDAY NIGHT, BUT NO PRECIPITATION IS EXPECTED WITH THIS  
FRONT.  
 
   
REST OF TODAY
 
 
SKY/WEATHER.........MOSTLY SUNNY (25-35 PERCENT).  
CHANCE OF PCPN......0 PERCENT.  
LAL.................NO TSTMS.  
TEMPERATURE.........41 AT IGNITION...MAX 61.  
RH..................57 PERCENT AT IGNITION...MIN 26 PERCENT.  
WIND (20 FT)........WINDS SOUTH AT 11 MPH AT IGNITION...OTHERWISE  
SOUTH WINDS 11 TO 14 MPH. GUSTS UP TO 25 MPH IN  
THE LATE MORNING AND AFTERNOON.  
EYE LEVEL WINDS.....SOUTH WINDS AT 3 TO 4 MPH AT IGNITION...OTHERWISE  
SOUTH WINDS AT 3 TO 5 MPH...USING A 0.3 ADJUSTMENT.  
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED  
FIRE GROWTH.  
MIXING HEIGHT.......900 FT AGL AT IGNITION, 3200 FT AGL AT MAX HEATING.  
TRANSPORT WINDS.....SOUTHWEST AROUND 29 MPH.  
SMOKE DISPERSAL.....GOOD (12460 M/S-M) AT MAX HEATING.  
 
TIME (CST) 9 AM 11 AM 1 PM 3 PM 5 PM 7 PM  
SKY (%).........55 55 43 20 3 13  
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............41 51 60 60 51 46  
RH..............57 42 32 32 46 55  
20 FT WIND......S 11 S 14 S 14 S 14 S 12 S 11  
20 FT WIND GUST.15 20 22 22 17 14  
   
TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLEAR (20-30 PERCENT) THEN BECOMING  
MOSTLY CLOUDY (50-60 PERCENT).  
CHANCE OF PCPN......0 PERCENT.  
LAL.................NO TSTMS.  
TEMPERATURE.........MIN 39.  
RH..................MAX 81 PERCENT.  
WIND (20 FT)........SOUTH WINDS 10 TO 12 MPH.  
EYE LEVEL WINDS.....SOUTH WINDS 3 TO 4 MPH.  
HAINES INDEX........N/A.  
MIXING HEIGHT.......N/A.  
TRANSPORT WINDS.....N/A.  
SMOKE DISPERSAL.....N/A.  
   
TUESDAY
 
 
SKY/WEATHER.........MOSTLY SUNNY (35-45 PERCENT).  
CHANCE OF PCPN......0 PERCENT.  
LAL.................NO TSTMS.  
TEMPERATURE.........MAX 55.  
RH..................MIN 34 PERCENT.  
WIND (20 FT)........NORTHWEST WINDS 8 TO 11 MPH WITH GUSTS TO  
AROUND 21 MPH.  
EYE LEVEL WINDS.....NORTHWEST WINDS 3 TO 4 MPH.  
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED  
FIRE GROWTH.  
MIXING HEIGHT.......3600 FT AGL AT MAX HEATING.  
TRANSPORT WINDS.....NORTHWEST AROUND 18 MPH.  
SMOKE DISPERSAL.....FAIR (9080 M/S-M) AT MAX HEATING.  
 

 
FORECASTER...TES  
REQUESTED BY...SPENCER WOODWARD  
TYPE OF REQUEST...PRESCRIBED  
.TAG 1719015.0/LSX  
 
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