777  
FNUS72 KCAE 221213  
FWSCAE  
 
SPOT FORECAST FOR SRS CPT 61...USFS-SAVANNAH RIVER  
NATIONAL WEATHER SERVICE COLUMBIA SC  
713 AM EST SAT FEB 22 2025  
 
FORECAST IS BASED ON IGNITION TIME OF 0800 EST ON FEBRUARY 22.  
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER  
SERVICE.  
   
DISCUSSION  
 
A VERY DRY AIR MASS IS OVER THE REGION. AFTERNOON RH VALUES WILL  
LIKELY RANGE FROM 25 TO 30 PERCENT AND MAY DROP AS LOW AS 20  
PERCENT AT THE SPOT LOCATION. WINDS WILL BE CALM THIS MORNING  
THEN, WHEN THE MORNING INVERSION BREAKS BETWEEN 10 AM AND 11 AM,  
PICK UP AROUND 5 MPH. WIND DIRECTION IN THE LATE MORNING WILL  
GENERALLY BE SE TURNING TO S THEN SW IN THE AFTERNOON. HOWEVER  
THERE MAY BE PERIODS WHERE WINDS ARE LIGHT AND VARIABLE AT THE  
BURN AREA. THE EVENING INVERSION SET UP BETWEEN 6 PM AND 7 PM.  
DISPERSION TONIGHT IS EXPECTED TO BE FAIR IN THE EARLY EVENING  
THEN POOR. NIGHTTIME FOG IS NOT EXPECTED.  
   
REST OF TODAY  
 
TIME (EST) 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM  
SKY (%).........3 3 5 9 6 10 8 9 17 22  
WEATHER COV.....  
WEATHER TYPE....  
TSTM COV........  
CHC OF PCPN (%).0 0 0 0 0 0 0 0 0 0  
TEMP............30 36 41 45 49 52 54 55 56 54  
RH..............83 71 55 45 36 28 25 22 28 35  
APARNT TMP (F)..30 36 39 44 48 52 54 55 56 54  
20 FT WIND DIR..NE E E E SE SE S S S SW  
20 FT WIND DIR..060 070 090 110 120 150 170 190 200 210  
20 FT WIND SPD..1 2 3 3 3 3 3 3 3 2  
20 FT WIND GUST.6 6 7 7 8 8 8 8 9 7  
MIX HGT (KFT)...0.4 0.7 1.8 2.6 3.1 3.7 4.4 4.9 5.1 3.9  
TRANSP WIND DIR.E E E SE SE S S S SW SW  
TRANSP WIND DIR.070 080 110 130 150 180 190 200 210 210  
TRANSP WIND SPD.3 5 7 8 9 9 10 12 13 10  
LVORI...........4 3 2 2 1 1 1 1 1 1  
ADI.............3 5 16 26 35 42 54 65 74 48  
   
TONIGHT  
 
TIME (EST) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM  
SKY (%).........26 54 43 20 16 11 7 5 4 5 2 2  
WEATHER COV.....  
WEATHER TYPE....  
TSTM COV........  
CHC OF PCPN (%).0 0 0 0 0 0 0 0 0 0 0 0  
TEMP............52 49 45 43 41 39 38 37 36 34 33 32  
RH..............41 50 58 62 67 70 70 72 72 78 78 81  
APARNT TMP (F)..52 49 45 43 41 39 38 37 36 34 33 32  
20 FT WIND DIR..W W S S S S S S S NW NW NW  
20 FT WIND DIR..250 290 200 200 200 200 200 200 200 310 310 310  
20 FT WIND SPD..2 2 1 1 1 1 1 1 1 1 2 2  
20 FT WIND GUST.6 5 3 3 3 3 3 3 3 3 5 5  
MIX HGT (KFT)...0.7 0.5 0.5 0.4 0.4 0.3 0.4 0.4 0.4 0.4 0.4 0.3  
TRANSP WIND DIR.SW W W W W W W W W W NW NW  
TRANSP WIND DIR.230 270 270 290 280 280 290 290 290 290 300 310  
TRANSP WIND SPD.7 6 5 5 5 5 5 5 5 6 6 6  
LVORI...........2 2 3 3 3 3 3 3 3 4 4 5  
ADI.............3 3 2 2 2 2 2 2 2 3 3 3  
   
SUNDAY  
 
TIME (EST) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM  
SKY (%).........2 4 3 3 3 3 2 3 7 15 24 33  
WEATHER COV.....  
WEATHER TYPE....  
TSTM COV........  
CHC OF PCPN (%).0 0 0 0 0 0 0 0 0 0 0 0  
TEMP............32 33 35 41 48 52 55 57 59 60 60 58  
RH..............81 78 75 65 49 41 38 35 33 32 32 36  
APARNT TMP (F)..32 33 35 41 48 52 55 57 59 60 60 58  
20 FT WIND DIR..NW NW NW NW NW NW W W W W W W  
20 FT WIND DIR..310 310 310 310 310 300 290 280 270 270 270 270  
20 FT WIND SPD..2 1 1 1 2 2 2 2 2 2 2 2  
20 FT WIND GUST.6 3 3 3 5 5 6 6 6 6 5 5  
MIX HGT (KFT)...0.3 0.3 0.6 1.2 2.0 2.9 3.5 3.9 4.3 4.5 4.3 3.4  
TRANSP WIND DIR.NW NW NW NW NW W W W W W W W  
TRANSP WIND DIR.300 310 310 310 300 290 280 270 270 270 260 260  
TRANSP WIND SPD.6 6 6 7 8 8 8 8 8 8 8 7  
LVORI...........4 4 4 3 2 2 1 1 1 1 1 2  
ADI.............6 6 6 11 21 29 34 38 41 43 41 28  
 
 
FORECASTER...ROHRBACH  
REQUESTED BY...KEVIN POPE  
TYPE OF REQUEST...PRESCRIBED  
.TAG 2503482.0/CAE  
.DELDT 02/22/25  
.FORMATTERVERSION 2.0.0  
.EMAIL KEVIN.POPE@USDA.GOV  
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