574  
FNUS72 KCAE 250829  
FWSCAE  
 
SPOT FORECAST FOR SRS CPT 41 RX...USFS-SAVANNAH RIVER  
NATIONAL WEATHER SERVICE COLUMBIA SC  
329 AM EST WED FEB 25 2026  
 
FORECAST IS BASED ON IGNITION TIME OF 0800 EST ON FEBRUARY 25.  
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER  
SERVICE.  
   
DISCUSSION  
 
AFTER THE INVERSION BREAKS AROUND 10 AM, SW WINDS WILL PICK UP  
WITH GUSTS FROM 20 TO 25 MPH. SURFACE WINDS SHOULD REMAIN STEADY  
OUT OF THE SW THROUGH THE AFTERNOON, BUT THERE MAY BE A FEW BRIEF  
PERIODS WHERE GUSTS PICK UP TO NEAR 30 MPH. RH VALUES WILL BE  
SIGNIFICANTLY HIGHER THAN THE PAST FEW DAYS. MIN RH VALUES AT THE  
SPOT LOCATION SHOULD ONLY BE AROUND 45 PERCENT THIS AFTERNOON.  
ALTHOUGH MOISTURE WILL INCREASE TONIGHT, DECENT MIXING SHOULD  
PREVENT FOG.  
   
REST OF TODAY  
 
SKY/WEATHER.........PARTLY SUNNY (55-65 PERCENT).  
CHANCE OF PCPN......0 PERCENT.  
MAX TEMPERATURE.....AROUND 66.  
MIN HUMIDITY........45 PERCENT.  
WIND (20 FT)........SOUTHWEST WINDS 6 TO 9 MPH. GUSTS UP TO 24 MPH  
IN THE LATE MORNING AND AFTERNOON.  
MIXING HEIGHT.......4000 FT AGL.  
TRANSPORT WINDS.....SOUTHWEST 14 TO 23 MPH INCREASING TO 21 TO 26  
MPH IN THE AFTERNOON.  
 
TIME (EST) 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM  
SKY (%).........71 76 78 77 56 45 56 66 57 64  
WEATHER COV.....  
WEATHER TYPE....  
TSTM COV........  
CHC OF PCPN (%).0 0 0 0 0 0 0 0 0 0  
TEMP............39 43 48 53 57 60 64 64 65 66  
RH..............73 76 71 61 54 50 48 46 48 49  
20 FT WIND DIR..SW SW SW SW SW SW SW SW SW SW  
20 FT WIND DIR..220 230 230 240 240 240 240 240 230 230  
20 FT WIND SPD..6 6 8 10 10 10 10 10 9 7  
20 FT WIND GUST.13 15 21 22 23 24 24 23 21 20  
MIX HGT (KFT)...0.5 1.1 1.7 2.1 2.6 3.3 3.8 4.0 3.7 2.6  
TRANSP WIND DIR.SW SW SW SW SW SW SW SW SW SW  
TRANSP WIND DIR.230 230 240 240 240 240 240 240 230 230  
TRANSP WIND SPD.14 20 23 22 23 25 26 26 24 21  
   
TONIGHT  
 
SKY/WEATHER.........MOSTLY CLOUDY (75-85 PERCENT).  
CHANCE OF PCPN......10 PERCENT.  
MIN TEMPERATURE.....AROUND 53.  
MAX HUMIDITY........96 PERCENT.  
WIND (20 FT)........SOUTHWEST WINDS AROUND 5 MPH EARLY IN THE  
EVENING BECOMING LIGHT, THEN BECOMING SOUTHWEST  
5 TO 6 MPH WITH GUSTS TO AROUND 20 MPH LATE IN  
THE EVENING.  
MIXING HEIGHT.......400 FT AGL.  
TRANSPORT WINDS.....SOUTHWEST 13 TO 20 MPH.  
 
TIME (EST) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM  
SKY (%).........70 66 71 81 83 90 87 77 75 85 87 88  
WEATHER COV.....  
WEATHER TYPE....  
TSTM COV........  
CHC OF PCPN (%).0 0 0 0 0 0 0 10 10 10 10 10  
TEMP............64 61 58 58 57 57 57 56 55 55 54 55  
RH..............52 61 69 69 72 75 77 82 85 91 96 92  
20 FT WIND DIR..SW SW S S S SW SW SW SW SW SW SW  
20 FT WIND DIR..220 210 200 200 200 210 210 210 210 210 210 210  
20 FT WIND SPD..6 3 5 5 5 6 6 6 7 7 7 7  
20 FT WIND GUST.17 15 15 16 16 16 17 18 20 20 20 20  
MIX HGT (KFT)...0.6 0.5 0.4 0.4 0.5 0.6 0.5 0.7 0.6 0.7 0.6 0.6  
TRANSP WIND DIR.SW SW S SW SW SW SW SW SW SW SW SW  
TRANSP WIND DIR.230 220 200 210 220 220 220 220 220 220 220 220  
TRANSP WIND SPD.15 14 14 13 15 17 20 20 17 16 16 17  
   
THURSDAY  
 
SKY/WEATHER.........CLOUDY (85-95 PERCENT). CHANCE OF RAIN IN THE  
MORNING. RAIN LIKELY IN THE AFTERNOON.  
CHANCE OF PCPN......70 PERCENT.  
MAX TEMPERATURE.....AROUND 69.  
MIN HUMIDITY........64 PERCENT.  
WIND (20 FT)........SOUTHWEST WINDS 6 TO 9 MPH. GUSTS UP TO 23 MPH.  
MIXING HEIGHT.......3100 FT AGL.  
TRANSPORT WINDS.....SOUTHWEST 17 TO 26 MPH.  
 
TIME (EST) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM  
SKY (%).........88 94 84 87 90 89 88 87 86 84 83 83  
WEATHER COV..... CHC CHC CHC CHC CHC CHC LKY LKY LKY LKY LKY  
WEATHER TYPE.... RN RN RN RN RN RN RN RN RN RN RN  
TSTM COV........  
CHC OF PCPN (%).10 50 50 50 50 50 50 70 70 70 70 70  
TEMP............55 55 55 57 59 62 64 67 68 69 69 68  
RH..............94 94 96 93 87 80 74 69 65 64 64 67  
20 FT WIND DIR..SW SW SW SW SW SW SW SW SW SW SW SW  
20 FT WIND DIR..210 210 210 210 210 210 220 220 220 220 220 220  
20 FT WIND SPD..8 8 9 9 9 9 10 10 9 8 7 6  
20 FT WIND GUST.20 20 22 23 23 23 23 22 22 21 20 17  
MIX HGT (KFT)...0.7 0.7 0.8 1.1 1.4 1.9 2.4 2.8 3.1 3.1 2.9 2.2  
TRANSP WIND DIR.SW SW SW SW SW SW SW SW SW SW SW SW  
TRANSP WIND DIR.220 220 220 220 220 220 230 230 230 230 230 230  
TRANSP WIND SPD.17 18 18 21 23 25 26 26 25 24 22 18  
 
 
FORECASTER...ROHRBACH  
REQUESTED BY...KEVIN POPE  
TYPE OF REQUEST...PRESCRIBED  
.TAG 2603865.0/CAE  
.DELDT 02/25/26  
.FORMATTERVERSION 2.0.0  
.EMAIL KEVIN.POPE@USDA.GOV  
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