839  
FNUS72 KCHS 100806  
FWSCHS  
 
SPOT FORECAST FOR FMF C177 WYDEN...USFS  
NATIONAL WEATHER SERVICE CHARLESTON SC  
406 AM EDT TUE MAR 10 2026  
 
FORECAST IS BASED ON IGNITION TIME OF 1000 EDT ON MARCH 10.  
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER  
SERVICE.  
   
DISCUSSION  
 
A CLUSTER OF SHOWERS AND THUNDERSTORMS APPROACHING THE REGION  
EARLY THIS MORNING SHOULD DISSIPATE PRIOR TO REACHING THE  
BURN SITE THIS MORNING. ISOLATED SHOWERS AND THUNDERSTORMS WILL  
BE POSSIBLE JUST ABOUT ANY TIME TODAY, BUT THE RISK LOOKS  
HIGHEST BETWEEN 1500 AND 1800. THE SEA BREEZE IS EXPECTED TO  
REACH THE SITE 1800-1900.  
   
REST OF TODAY  
 
SKY/WEATHER.........PARTLY SUNNY. SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS.  
CHANCE OF PCPN......20 PERCENT.  
MAX TEMPERATURE.....AROUND 83.  
MIN HUMIDITY........51 PERCENT.  
WIND (20 FT)........LIGHT WINDS. GUSTY AND ERRATIC WINDS EXPECTED  
NEAR THUNDERSTORMS.  
MIXING HEIGHT.......MAX 4500 FT AGL.  
TRANSPORT WINDS.....LIGHT WINDS BECOMING SOUTHWEST AROUND 10 MPH IN  
THE AFTERNOON.  
MAX ADI.............55.  
INVERSION END.......1000.  
 
TIME (EDT) 10A 11A 12P 1PM 2PM 3PM 4PM 5PM  
SKY (%).........59 71 52 35 51 52 53 53  
WEATHER TYPE....RW RW RW RW RW RW RW RW  
TSTM COV........SCH SCH SCH SCH SCH SCH SCH SCH  
CHC OF PCPN (%).20 20 20 20 20 20 20 20  
TEMP............67 72 77 79 82 83 83 83  
RH..............93 81 67 62 55 53 53 51  
20 FT WIND DIR..SW SW SW SW SW SW SW SW  
20 FT WIND SPD..1 2 2 3 3 3 3 3  
20 FT WIND GUST.5 7 9 9 11 11 11 11  
MIX HGT (KFT)...0.7 1.0 2.2 3.4 4.5 3.7 2.9 1.7  
TRANSP WIND DIR.SW SW W W W SW SW SW  
TRANSP WIND SPD.2 2 10 10 10 10 10 10  
LVORI...........8 4 3 1 1 1 1 2  
ADI.............1 6 23 38 55 47 37 23  
   
TONIGHT  
 
SKY/WEATHER.........MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY.  
CHANCE OF SHOWERS EARLY IN THE EVENING. SLIGHT  
CHANCE OF THUNDERSTORMS EARLY IN THE EVENING.  
SLIGHT CHANCE OF SHOWERS EARLY IN THE EVENING.  
CHANCE OF PCPN......30 PERCENT.  
MIN TEMPERATURE.....AROUND 62.  
MAX HUMIDITY........100 PERCENT.  
WIND (20 FT)........LIGHT WINDS. GUSTY AND ERRATIC WINDS EXPECTED  
NEAR THUNDERSTORMS EARLY IN THE EVENING.  
MAX LVORI...........10.  
MIN ADI.............1.  
INVERSION BEGIN.....1930.  
 
TIME (EDT) 6 PM 8 PM 10 PM MIDNGT 2 AM 4 AM  
SKY (%).........51 35 22 17 15 9  
WEATHER TYPE....RNSHWR NONE NONE NONE NONE NONE  
TSTM COV........S CHC  
CHC OF PCPN (%).30 10 0 0 0 10  
TEMP............79 71 68 66 64 63  
RH..............58 81 84 90 93 100  
20 FT WIND......S 2 S 2 SW 2 SW 2 SW 2 SW 2  
20 FT WIND GUST.9 7 9 9 9 9  
MIX HGT (FT)....1300 500 600 600 700 600  
TRANSPORT WIND..S 4 S 4 SW 2 SW 2 SW 2 SW 2  
LVORI...........3 6 6 7 8 10  
ADI.............1 1 1 1 1 1  
   
WEDNESDAY  
 
SKY/WEATHER.........MOSTLY SUNNY. PATCHY FOG EARLY IN THE MORNING.  
CHANCE OF PCPN......10 PERCENT.  
MAX TEMPERATURE.....AROUND 85.  
MIN HUMIDITY........51 PERCENT.  
WIND (20 FT)........LIGHT WINDS BECOMING SOUTHWEST 5 TO 6 MPH WITH  
GUSTS TO AROUND 16 MPH IN THE AFTERNOON.  
MIXING HEIGHT.......MAX 4200 FT AGL.  
TRANSPORT WINDS.....LIGHT WINDS BECOMING SOUTHWEST AROUND 16 MPH.  
MAX ADI.............74.  
INVERSION END.......0930.  
 
TIME (EDT) 6 AM 9 AM NOON 3 PM  
SKY (%).........17 31 46 49  
WEATHER TYPE....NONE NONE NONE NONE  
TSTM COV........  
CHC OF PCPN (%).10 0 0 0  
TEMP............62 65 79 84  
RH..............100 93 64 53  
20 FT WIND......SW 2G7 SW 2G9 SW 4G11 SW 6G16  
MIX HGT (FT)....600 800 2300 3400  
TRANSPORT WIND..SW 2 SW 6 SW 12 SW 16  
LVORI...........10 7 1 1  
ADI.............2 2 31 68  
 
 
FORECASTER...TAYLOR  
REQUESTED BY...MIKE LESLIE  
TYPE OF REQUEST...PRESCRIBED  
.TAG 2605218.0/CHS  
.DELDT 03/10/26  
.FORMATTERVERSION 2.0.0  
.EMAIL MICHAEL.C.LESLIE@USDA.GOV,KELLY.WETZELWILSON@USDA.GOV  
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