439  
FNUS72 KCHS 021036  
FWSCHS  
 
SPOT FORECAST FOR COMBAHEE RX...US FISH & WILDLIFE SERVICE  
NATIONAL WEATHER SERVICE CHARLESTON SC  
636 AM EDT WED APR 2 2025  
 
FORECAST IS BASED ON IGNITION TIME OF 0900 EDT ON APRIL 02.  
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER  
SERVICE.  
 
   
DISCUSSION  
 
A WARM FRONT WILL BE LIFTING NORTHWARDS ACROSS THE REGION TODAY.  
STRONG ATLANTIC HIGH PRESSURE WILL THEN PREVAIL INTO THURSDAY.  
 
FOG POTENTIAL FOR TONIGHT: LOW  
 
   
TODAY  
 
SKY/WEATHER.........MOSTLY CLOUDY. AREAS OF DENSE FOG EARLY IN THE  
MORNING, THEN PATCHY FOG LATE IN THE MORNING.  
SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS LATE  
IN THE AFTERNOON.  
CHANCE OF PCPN......20 PERCENT.  
MAX TEMPERATURE.....AROUND 82.  
MIN HUMIDITY........65 PERCENT.  
WIND (20 FT)........LIGHT WINDS BECOMING SOUTHEAST 5 TO 9 MPH LATE  
IN THE MORNING, THEN INCREASING TO 9 TO 10 MPH  
IN THE AFTERNOON. GUSTY AND ERRATIC WINDS  
EXPECTED NEAR THUNDERSTORMS LATE IN THE  
AFTERNOON.  
MIXING HEIGHT.......MAX 2800 FT AGL.  
TRANSPORT WINDS.....LIGHT WINDS BECOMING SOUTHEAST 10 TO 18 MPH IN  
THE LATE MORNING AND EARLY AFTERNOON, THEN  
SHIFTING TO THE SOUTH AROUND 20 MPH LATE IN THE  
AFTERNOON.  
MAX ADI.............45.  
INVERSION END.......1000.  
 
TIME (EDT) 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM  
SKY (%).........87 76 61 57 56 56 55 54 54  
WEATHER TYPE....FOG RW RW RW  
TSTM COV........ SCH SCH SCH  
CHC OF PCPN (%).0 10 10 10 10 10 20 20 20  
TEMP............68 72 76 79 81 81 82 81 80  
RH..............93 87 76 72 67 67 65 67 69  
20 FT WIND DIR..E SE SE SE SE SE SE SE SE  
20 FT WIND SPD..5 7 8 9 9 10 10 10 9  
20 FT WIND GUST. 9 11 13 13 14 16 16 13  
MIX HGT (KFT)...0.8 1.5 2.3 2.6 2.8 2.8 2.8 2.6 2.5  
TRANSP WIND DIR.SE SE SE SE SE SE S S S  
TRANSP WIND SPD.10 10 10 18 18 18 20 20 20  
LVORI...........6 4 3 3 1 1 1 1 3  
ADI.............6 19 31 36 42 43 45 43 40  
   
TONIGHT  
 
SKY/WEATHER.........MOSTLY CLOUDY.  
CHANCE OF PCPN......10 PERCENT.  
MIN TEMPERATURE.....AROUND 67.  
MAX HUMIDITY........100 PERCENT.  
WIND (20 FT)........SOUTHEAST WINDS 5 TO 9 MPH.  
MAX LVORI...........9.  
MIN ADI.............1.  
INVERSION BEGIN.....2000.  
 
TIME (EDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM  
SKY (%).........54 56 59 66 74 79 78 75 72 75 78 81  
WEATHER TYPE....  
TSTM COV........  
CHC OF PCPN (%).10 10 10 10 10 10 10 0 0 0 0 0  
TEMP............79 75 71 70 69 69 68 68 67 67 67 67  
RH..............72 82 93 93 97 97 100 100 100 100 100 97  
20 FT WIND DIR..SE SE SE SE SE SE SE SE S S S S  
20 FT WIND SPD..9 9 8 8 7 7 7 6 6 6 6 5  
20 FT WIND GUST.13 13 11 11 11 9 9 9 9 9 7 7  
MIX HGT (KFT)...2.2 1.4 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5  
TRANSP WIND DIR.SE SE SE SE SE SE SE SE SE S S S  
TRANSP WIND SPD.12 12 12 8 8 8 8 8 8 6 6 6  
LVORI...........4 4 6 6 6 6 8 9 9 9 9 7  
ADI.............1 14 8 8 7 7 7 5 5 5 5 5  
   
THURSDAY  
 
SKY/WEATHER.........PARTLY SUNNY.  
CHANCE OF PCPN......10 PERCENT.  
MAX TEMPERATURE.....AROUND 84.  
MIN HUMIDITY........61 PERCENT.  
WIND (20 FT)........SOUTH WINDS 5 TO 11 MPH. GUSTS UP TO 24 MPH IN  
THE LATE MORNING AND AFTERNOON.  
MIXING HEIGHT.......MAX 4000 FT AGL.  
TRANSPORT WINDS.....SOUTH AROUND 6 MPH INCREASING TO 16 TO 20 MPH  
IN THE LATE MORNING AND AFTERNOON.  
MAX ADI.............77.  
INVERSION END.......0900.  
 
TIME (EDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM  
SKY (%).........82 82 81 71 63 56 50 45 40 34 29 27  
WEATHER TYPE....  
TSTM COV........  
CHC OF PCPN (%).0 0 10 0 0 0 0 0 0 0 0 0  
TEMP............67 67 67 70 74 78 80 82 83 83 83 81  
RH..............97 97 97 93 82 74 69 63 61 61 61 65  
20 FT WIND DIR..S S S S S S S S S S S S  
20 FT WIND SPD..5 5 5 7 8 9 9 9 10 10 11 11  
20 FT WIND GUST.7 7 9 13 16 18 18 20 20 22 22 20  
MIX HGT (KFT)...0.5 0.5 0.7 1.8 2.6 3.3 3.6 3.8 4.0 3.9 3.8 3.7  
TRANSP WIND DIR.S S S S S S S S S S S S  
TRANSP WIND SPD.6 6 6 16 16 16 20 20 20 20 20 20  
LVORI...........6 6 6 5 3 3 1 1 1 1 1 1  
ADI.............8 8 8 23 36 46 69 75 77 76 75 70  
 
 
FORECASTER...33  
REQUESTED BY...ADAM MCCULLOUGH  
TYPE OF REQUEST...PRESCRIBED  
.TAG 2508672.0/CHS  
.DELDT 04/02/25  
.FORMATTERVERSION 2.0.0  
.EMAIL ADAM_MCCULLOUGH@FWS.GOV  
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