080  
FNUS73 KLSX 160917  
FWSLSX  
 
SPOT FORECAST FOR LIVING CLASSROOM RX...USFS  
NATIONAL WEATHER SERVICE SAINT LOUIS MO  
317 AM CST SUN NOV 16 2025  
 
FORECAST IS BASED ON IGNITION TIME OF 1200 CST ON NOVEMBER 16.  
IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE  
NATIONAL WEATHER SERVICE.  
   
DISCUSSION  
THE MOST NOTABLE ASPECT OF TODAY'S CONDITIONS IS  
THAT HUMIDITY LEVELS WILL BE VERY LOW THROUGHOUT THE DAY, WITH  
AFTERNOON MINIMUMS DIPPING INTO THE LOW 20S. FORTUNATELY,  
NORTHERLY WINDS ARE EXPECTED TO REMAIN LIGHT, WHICH SHOULD  
MITIGATE THE THREAT OF MORE ERRATIC FIRE BEHAVIOR. MIXING HEIGHTS  
ARE ALSO EXPECTED TO BE RELATIVELY SUPPRESSED, AND WHEN COMBINED  
WITH THE LIGHT WINDS, SMOKE DISPERSION MAY BE SOMEWHAT LIMITED,  
ESPECIALLY AT THE START OF THE BURN WINDOW.  
 
VERY LIGHT WINDS AND COLD TEMPERATURES ARE EXPECTED OVERNIGHT,  
BUT HUMIDITY RECOVERY MAY BE HINDERED BY THE VERY DRY AIRMASS.  
MEANWHILE, BREEZY SOUTHEAST WINDS ARE EXPECTED THROUGHOUT THE DAY  
MONDAY. WHILE HUMIDITY IS EXPECTED TO SLOWLY INCREASE, DRY AIR  
MAY LINGER INTO THE AFTERNOON AND CREATE A BRIEF WINDOW OF  
SLIGHTLY ELEVATED FIRE WEATHER CONDITIONS.  
   
REST OF TODAY  
 
SKY/WEATHER.........SUNNY (5-15 PERCENT).  
CWR.................0 PERCENT.  
CHANCE OF THUNDER...0 PERCENT.  
TEMPERATURE.........58 AT IGNITION...MAX 61.  
RH..................26 PERCENT AT IGNITION...MIN 22 PERCENT.  
WIND (20 FT)........WINDS NORTH AT 4 TO 6 MPH.  
MIXING HEIGHT.......2500 FT AGL AT IGNITION...OTHERWISE  
MAX 2700 FT AGL.  
TRANSPORT WINDS.....NORTH 6 TO 10 MPH.  
SMOKE DISPERSAL.....POOR /2730 M/S-M/ AT IGNITION.  
MAX...POOR /3710 M/S-M/.  
 
TIME (CST) 12P 1PM 2PM 3PM 4PM 5PM 6PM 7PM 8PM 9PM 10P 11P  
SKY (%).........7 3 9 16 19 7 6 4 3 5 1 5  
WEATHER COV.....  
WEATHER TYPE....  
TSTM COV........  
CWR.............0 0 0 0 0 0 0 0 0 0 0 0  
CHC OF THDR (%).0 0 0 0 0 0 0 0 0 0 0 0  
TEMP............58 59 60 59 57 53 49 46 44 43 41 41  
RH..............26 24 22 22 25 29 34 38 41 43 46 41  
20 FT WIND DIR..N N N N N N N NE NE NE SE E  
20 FT WIND SPD..4 3 3 3 2 2 2 1 1 1 1 1  
20 FT WIND GUST.10 10 9 9 8 7 6 5 5 5 5 4  
MIX HGT (KFT)...2.5 2.6 2.7 2.7 1.8 0.6 0.4 0.5 0.5 0.5 0.5 0.5  
TRANSP WIND DIR.N N N N N N N NE NE NE NE E  
TRANSP WIND SPD.8 10 9 9 8 6 6 6 6 7 6 6  
VRATE KT-FT/1K..17 24 22 22 13 3 2 2 3 3 2 2  
VENTRATE CAT....PR PR PR PR PR PR PR PR PR PR PR PR  
   
TONIGHT  
 
SKY/WEATHER.........MOSTLY CLEAR (5-15 PERCENT).  
CWR.................0 PERCENT.  
CHANCE OF THUNDER...0 PERCENT.  
TEMPERATURE.........MIN 37.  
RH..................MAX 52 PERCENT.  
WIND (20 FT)........LIGHT WINDS.  
MIXING HEIGHT.......MIN 400 FT AGL.  
TRANSPORT WINDS.....NORTHEAST 6 TO 8 MPH SHIFTING TO THE EAST 5  
TO 8 MPH OVERNIGHT.  
SMOKE DISPERSAL.....POOR (300 M/S-M).  
   
MONDAY  
 
SKY/WEATHER.........MOSTLY SUNNY (30-40 PERCENT) THEN BECOMING  
MOSTLY CLOUDY (70-80 PERCENT).  
CWR.................10 PERCENT.  
CHANCE OF THUNDER...12 PERCENT.  
TEMPERATURE.........MAX 59.  
RH..................MIN 28 PERCENT.  
WIND (20 FT)........LIGHT WINDS BECOMING SOUTHEAST 5 TO 7 MPH WITH  
GUSTS TO AROUND 17 MPH IN THE LATE MORNING AND  
AFTERNOON.  
MIXING HEIGHT.......MAX 2200 FT AGL.  
TRANSPORT WINDS.....SOUTHEAST 9 TO 15 MPH SHIFTING TO THE SOUTH 16  
TO 17 MPH IN THE AFTERNOON.  
SMOKE DISPERSAL.....POOR (570 M/S-M) EARLY IN THE MORNING  
INCREASING TO MARGINAL (4850 M/S-M) IN THE  
AFTERNOON.  
 
 
FORECASTER...19  
REQUESTED BY...JACOB BIRDSELL  
TYPE OF REQUEST...PRESCRIBED  
.TAG 2526011.0/LSX  
.DELDT 11/16/25  
.FORMATTERVERSION 2.0.0  
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