425
FNUS72 KCHS 181123
FWSCHS
SPOT FORECAST FOR C172...USDA FOREST SERVICE
NATIONAL WEATHER SERVICE CHARLESTON SC
723 AM EDT WED MAR 18 2026
FORECAST IS BASED ON IGNITION TIME OF 0800 EDT ON MARCH 18.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.
DISCUSSION
DRY HIGH PRESSURE WILL PREVAIL TODAY WITH RELATIVE HUMIDITY VALUES
FALLING TO AS LOW AS AROUND 30 PERCENT. WINDS WILL BE OUT OF THE
NORTHEAST FOR MOST OF THE DAY, POTENTIALLY TURNING MORE EASTERLY
EARLY THIS EVENING LATE THIS AFTERNOON WITH A SUBTLE SEA BREEZE.
THE FORECAST REMAINS DRY WITH WARMING TEMPERATURES THROUGH THE REST
OF THE WEEK.
REST OF TODAY
SKY/WEATHER.........MOSTLY SUNNY.
CHANCE OF PCPN......0 PERCENT.
MAX TEMPERATURE.....AROUND 58.
MIN HUMIDITY........34 PERCENT.
WIND (20 FT)........NORTHEAST WINDS AROUND 5 MPH WITH GUSTS TO
AROUND 14 MPH EARLY IN THE MORNING BECOMING
LIGHT.
MIXING HEIGHT.......MAX 4900 FT AGL.
TRANSPORT WINDS.....NORTHEAST 6 TO 14 MPH.
MAX ADI.............44.
INVERSION END.......0900.
TIME (EDT) 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........54 48 50 57 40 41 44 45 41 34
WEATHER TYPE....
TSTM COV........
CHC OF PCPN (%).0 0 0 0 0 0 0 0 0 0
TEMP............34 37 41 46 50 53 56 56 56 57
RH..............64 56 55 47 42 39 35 37 37 34
20 FT WIND DIR..N NE NE NE NE NE NE NE N N
20 FT WIND SPD..5 5 5 5 5 4 3 3 2 2
20 FT WIND GUST.14 13 13 13 13 11 11 9 9 9
MIX HGT (KFT)...0.7 1.4 1.9 2.3 3.0 4.0 4.7 4.9 4.9 4.7
TRANSP WIND DIR.N NE NE NE NE NE NE N N N
TRANSP WIND SPD.6 14 14 14 10 10 10 6 6 6
LVORI...........3 2 1 1 1 1 1 1 1 1
ADI.............6 28 33 40 42 44 38 33 33 31
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY THEN
BECOMING MOSTLY CLEAR.
CHANCE OF PCPN......0 PERCENT.
MIN TEMPERATURE.....AROUND 37.
MAX HUMIDITY........72 PERCENT.
WIND (20 FT)........LIGHT WINDS.
MAX LVORI...........4.
MIN ADI.............1.
INVERSION BEGIN.....1900.
TIME (EDT) 6 PM 8 PM 10 PM MIDNGT 2 AM 4 AM
SKY (%).........50 57 32 38 23 8
WEATHER TYPE....NONE NONE NONE NONE NONE NONE
TSTM COV........
CHC OF PCPN (%).0 0 0 0 0 0
TEMP............55 50 44 42 40 39
RH..............37 48 57 60 59 62
20 FT WIND......N 2 NE 1 N 1 N 2 N 2 N 2
20 FT WIND GUST.7 5 5 7 7 9
MIX HGT (FT)....3700 500 500 500 500 400
TRANSPORT WIND..NE 4 NE 4 NE 2 N 2 N 2 N 2
LVORI...........2 2 3 3 3 3
ADI.............1 1 1 1 1 1
THURSDAY
SKY/WEATHER.........SUNNY.
CHANCE OF PCPN......0 PERCENT.
MAX TEMPERATURE.....AROUND 65.
MIN HUMIDITY........33 PERCENT.
WIND (20 FT)........LIGHT WINDS.
MIXING HEIGHT.......MAX 4200 FT AGL.
TRANSPORT WINDS.....LIGHT WINDS BECOMING NORTH 8 TO 10 MPH IN THE
LATE MORNING AND EARLY AFTERNOON, THEN BECOMING
LIGHT LATE IN THE AFTERNOON.
MAX ADI.............41.
INVERSION END.......0900.
TIME (EDT) 6 AM 9 AM NOON 3 PM
SKY (%).........5 3 12 21
WEATHER TYPE....NONE NONE NONE NONE
TSTM COV........
CHC OF PCPN (%).0 0 0 0
TEMP............37 42 58 64
RH..............70 62 36 34
20 FT WIND......N 2G9 N 2G9 N 3G9 NE 3G9
MIX HGT (FT)....400 1100 3200 4000
TRANSPORT WIND..N 2 N 10 N 8 NE 4
LVORI...........3 2 1 2
ADI.............2 12 41 27
FORECASTER...HOLLOWAY
REQUESTED BY...FRANCIS MARION RANGER DISTRICT
TYPE OF REQUEST...PRESCRIBED
.TAG 2606246.0/CHS
.DELDT 03/18/26
.FORMATTERVERSION 2.0.0
.EMAIL BENJAMIN.KUHN@USDA.GOV,KELLY.WETZELWILSON@USDA.GOV
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