358  
FNUS73 KPAH 141421  
FWSPAH  
 
SPOT FORECAST FOR 2020 LIBO PILE BURNS...NPS  
NATIONAL WEATHER SERVICE PADUCAH KY  
821 AM CST TUE JAN 14 2020  
 
FORECAST IS BASED ON IGNITION TIME OF 0900 CST ON JANUARY 14.  
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER  
SERVICE.  
   
DISCUSSION
 
 
A MIX OF SUN AND CLOUDS IS EXPECTED TODAY. WEAK TRANSPORT WINDS  
WITHIN A SHALLOW MIXING LAYER BENEATH A STRONG SUBSIDENCE INVERSION  
WILL MAKE FOR RELATIVELY POOR PARTICULATE DISPERSION TODAY. MINIMUM  
HUMIDITY WILL ALSO BE QUITE HIGH.  
   
REST OF TODAY
 
 
SKY/WEATHER.........PARTLY CLOUDY (45-55 PERCENT).  
CWR.................0 PERCENT.  
TEMPERATURE.........47 AT IGNITION...MAX 56.  
RH..................87 PERCENT AT IGNITION...MIN 69 PERCENT.  
WIND (20 FT)........  
SLOPE/VALLEY.......WINDS WEST AT 6 MPH AT IGNITION...OTHERWISE  
WEST WINDS 5 TO 6 MPH IN THE LATE MORNING AND  
AFTERNOON BECOMING LIGHT.  
MIXING HEIGHT.......600 FT AGL AT IGNITION...OTHERWISE 2000 FT AGL.  
TRANSPORT WINDS.....NORTHWEST 3 TO 5 MPH.  
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH AT IGNITION...MAX 5.  
 
TIME (CST) 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM  
SKY COVER.......MC PC PC MC MC PC MC MC MC  
WEATHER COV.....  
WEATHER TYPE....  
TSTM COV........  
CWR.............0 0 0 0 0 0 0 0 0  
TEMP............47 48 50 51 53 54 53 52 50  
RH..............87 83 80 77 71 69 71 74 77  
20 FT WIND DIR..W W W W W W W W W  
20 FT WIND SPD..6 5 6 5 6 6 6 5 3  
20 FT WIND GUST.8 9 8 8 8 9 9 8 5  
MIX HGT (KFT)...0.6 0.8 1.5 1.7 1.9 2.0 1.9 1.0 0.5  
TRANSP WIND DIR.SW W W W W W NW NW N  
TRANSP WIND SPD.5 5 3 3 3 3 3 3 5  
HAINES INDEX....5 5 5 5 5 4 4 4 5  
   
TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLOUDY (70-80 PERCENT).  
CWR.................0 PERCENT.  
TEMPERATURE.........MIN 42.  
RH..................MAX 96 PERCENT.  
WIND (20 FT)........  
SLOPE/VALLEY.......LIGHT WINDS BECOMING SOUTHEAST 5 TO 7 MPH  
OVERNIGHT.  
MIXING HEIGHT.......100 FT AGL.  
TRANSPORT WINDS.....EAST 5 TO 6 MPH.  
HAINES INDEX........4 TO 6 OR LOW TO HIGH POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
 
TIME (CST) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM  
SKY COVER.......MC MC MC MC MC CDY CDY CDY CDY CDY CDY CDY  
WEATHER COV.....  
WEATHER TYPE....  
TSTM COV........  
CWR.............0 0 0 0 0 0 0 0 0 0 0 0  
TEMP............47 46 46 45 44 44 45 44 45 45 46 47  
RH..............86 86 86 89 93 93 89 93 93 93 93 93  
20 FT WIND DIR..N NE E E E E E E E E E SE  
20 FT WIND SPD..2 2 3 3 3 3 5 5 6 6 6 7  
20 FT WIND GUST.3 3 5 5 6 6 7 8 9 9 9  
MIX HGT (KFT)...0.4 0.4 0.4 0.5 0.5 0.4 0.4 0.3 0.2 0.1 0.1 0.1  
TRANSP WIND DIR.N N NE E E E E E E E E E  
TRANSP WIND SPD.5 5 5 5 5 6 6 6 6 6 6 6  
HAINES INDEX....5 5 5 5 5 5 5 5 6 6 5 4  
   
WEDNESDAY
 
 
SKY/WEATHER.........CLOUDY (90-100 PERCENT). CHANCE OF RAIN  
SHOWERS.  
CWR.................0 PERCENT.  
TEMPERATURE.........MAX 62.  
RH..................MIN 78 PERCENT.  
WIND (20 FT)........  
SLOPE/VALLEY.......WEST WINDS 7 TO 13 MPH.  
MIXING HEIGHT.......1100 FT AGL.  
TRANSPORT WINDS.....SOUTH 6 TO 13 MPH SHIFTING TO THE WEST 15 TO 21  
MPH LATE IN THE AFTERNOON.  
HAINES INDEX........3 TO 5 OR VERY LOW TO MODERATE POTENTIAL FOR  
LARGE PLUME DOMINATED FIRE GROWTH.  
 
TIME (CST) 6 AM 8 AM 10 AM NOON 2 PM 4 PM  
SKY COVER.......CLOUDY CLOUDY CLOUDY CLOUDY CLOUDY CLOUDY  
WEATHER COV.....CHANCE CHANCE CHANCE CHANCE CHANCE CHANCE  
WEATHER TYPE....RNSHWR RNSHWR RNSHWR RNSHWR RNSHWR RNSHWR  
TSTM COV........  
CWR.............0 0 0 0 0 0  
TEMP............47 50 56 60 60 59  
RH..............96 96 90 84 81 78  
20 FT WIND DIR..SE SE S SW W W  
20 FT WIND SPD..7 7 8 8 10 12  
20 FT WIND GUST.8 9 10 14 15 16  
MIX HGT (FT)....100 100 100 100 900 900  
TRANSP WIND DIR.E SE S S W W  
TRANSP WIND SPD.6 7 8 8 17 18  
HAINES INDEX....3 3 4 5 4 4  
 

 
FORECASTER...WFO PADUCAH  
REQUESTED BY...JOE JAMES  
TYPE OF REQUEST...PRESCRIBED  
.TAG 2000599.0/PAH  
.DELDT 01/14/20  
.FORMATTERVERSION 1.0.26  
.EMAIL JOSEPH_JAMES@NPS.GOV  
 
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