595  
FNUS72 KJAX 161339  
FWSJAX  
 
SPOT FORECAST FOR HELO PREBURN 1 JBSF...FLORIDA FOREST SERVICE  
NATIONAL WEATHER SERVICE JACKSONVILLE FL  
839 AM EST WED JAN 16 2019  
 
FORECAST IS BASED ON IGNITION TIME OF 0900 EST ON JANUARY 16.  
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER  
SERVICE.  
 
PLEASE CONTACT OUR OFFICE AT (904) 741-4370, IF YOU HAVE QUESTIONS  
OR CONCERNS WITH THIS FORECAST.  
   
DISCUSSION
 
 
HIGH PRESSURE WILL BUILD FROM THE WEST TODAY, THEN OVERHEAD TONIGHT  
INTO THURSDAY. TEMPERATURES WILL RISE TO AROUND 60 THIS AFTERNOON,  
THEN FALL INTO THE MIDDLE 30S TONIGHT, WITH AREAS OF FROST DEVELOPING.  
   
REST OF TODAY
 
 
TIME (EST) 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM  
SKY (%).........32 29 21 12 4 4 3 3 2  
WEATHER COV.....  
WEATHER TYPE....  
TSTM COV........  
CHC OF PCPN (%).0 0 0 0 0 0 0 0 0  
LAL.............1 1 1 1 1 1 1 1 1  
TEMP............40 46 51 55 58 59 60 59 56  
RH..............85 68 56 47 42 39 37 37 43  
20 FT WIND DIR..N N N NW NW NW NW NW NW  
20 FT WIND SPD..3 3 3 3 3 3 3 3 3  
20 FT WIND GUST.6 7 7 6 6 6 6 6 6  
MIX HGT (KFT)...1.2 1.4 2.3 2.3 3.1 3.3 3.4 3.4 1.9  
TRANSP WIND DIR.N N N N N N NW NW NW  
TRANSP WIND SPD.6 6 6 7 7 7 7 6 6  
DISPERSION IDX..9 11 16 20 27 28 28 24 14  
LVORI...........4 3 2 2 2 2 2 2 2  
   
TONIGHT
 
 
TIME (EST) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM  
SKY (%).........1 0 0 0 0 1 5 8 8 8 9 9  
WEATHER COV..... ARS ARS ARS ARS  
WEATHER TYPE.... FST FST FST FST  
TSTM COV........  
CHC OF PCPN (%).0 0 0 0 0 0 0 0 0 0 0 0  
LAL.............1 1 1 1 1 1 1 1 1 1 1 1  
TEMP............51 46 44 42 40 39 38 37 36 35 35 34  
RH..............54 68 73 76 82 82 85 85 89 89 89 92  
20 FT WIND DIR..W W W W W W NW N N NE NE NE  
20 FT WIND SPD..2 2 2 2 2 2 1 1 1 1 1 1  
20 FT WIND GUST.3 3 3 3 3 3 2 2 2 2 2 2  
MIX HGT (KFT)...0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4  
TRANSP WIND DIR.NW NW NW N N N N N N N N N  
TRANSP WIND SPD.5 5 5 6 6 6 6 5 6 6 6 6  
DISPERSION IDX..5 2 2 3 3 3 3 2 3 3 3 3  
LVORI...........2 3 3 4 5 5 6 5 6 6 6 8  
 

 
FORECASTER...STRUBLE  
REQUESTED BY...PHIL CHESSMAN  
TYPE OF REQUEST...PRESCRIBED  
.TAG 1900335.0/JAX  
.DELDT 01/16/19  
.EMAIL LUCLARE.CHESSMAN@FRESFROMFLORIDA.COM  
 
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