104
FNUS72 KCHS 221847
FWSCHS
SPOT FORECAST FOR FMF C148 PLANNING...USFS
NATIONAL WEATHER SERVICE CHARLESTON SC
247 PM EDT SUN MAR 22 2026
FORECAST IS BASED ON IGNITION TIME OF 1000 EDT ON MARCH 23.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.
DISCUSSION
HIGH PRESSURE WILL DOMINATE OVER THE BURN SITE MONDAY MORNING AND INTO
THE AFTERNOON. A STRONG BACKDOOR COLD FRONT WILL PUSH THROUGH THE BURN
SITE AROUND 7 PM, SHIFTING WINDS FROM THE W TO THE NE. THE BACKDOOR
COLD FRONT WILL BRING A RISK OF SHOWERS AND POSSIBLY A THUNDERSTORM
MOVING INTO THE BURN SITE FROM THE NORTH. AT THE EARLIEST A SHOWER COULD
IMPACT THE BURN SITE AROUND 5 PM, HOWEVER IMPACTS WOULD MORE LIKELY COME
CLOSER TO 7 OR 8 PM. A VERY WEAK SEA BREEZE IS EXPECTED TO DEVELOP,
HOWEVER IT IS FORECAST TO REMAIN VERY CLOSE TO THE COASTLINE, LIKELY NOT
MAKING IT TO THE BURN SITE PRIOR TO THE ARRIVAL OF THE BACKDOOR COLD FRONT.
GIVEN THE PREVAILING HIGH PRESSURE, HIGH TEMPERATURES WILL ONCE AGAIN SHOOT
INTO THE MID TO UPPER 80S AT THE BURN SITE, WITH A HIGH TEMPERATURE OF 87
FORECAST AT THE BURN SITE. WIND GUSTS COULD APPROACH 20 MPH. NIGHTTIME
DISPERSION MONDAY NIGHT INTO TUESDAY MORNING IS FORECAST TO BE FAIR. THE
FOG POTENTIAL MONDAY NIGHT INTO TUESDAY MORNING IS VERY LOW.
MONDAY
SKY/WEATHER.........SUNNY THEN BECOMING PARTLY SUNNY. SLIGHT CHANCE
OF SHOWERS AND THUNDERSTORMS LATE IN THE
AFTERNOON.
CHANCE OF PCPN......20 PERCENT.
MAX TEMPERATURE.....AROUND 85.
MIN HUMIDITY........45 PERCENT.
WIND (20 FT)........WEST WINDS 6 TO 7 MPH SHIFTING TO THE NORTHWEST
AROUND 5 MPH LATE IN THE AFTERNOON. GUSTS UP TO
20 MPH. GUSTY AND ERRATIC WINDS EXPECTED NEAR
THUNDERSTORMS LATE IN THE AFTERNOON.
MIXING HEIGHT.......MAX 4500 FT AGL.
TRANSPORT WINDS.....WEST 16 TO 20 MPH.
MAX ADI.............91.
INVERSION END.......0900.
TIME (EDT) 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........15 11 7 8 8 22 51 60
WEATHER TYPE.... RW
TSTM COV........ SCH
CHC OF PCPN (%).0 0 0 0 0 10 10 20
TEMP............72 76 80 82 83 84 85 83
RH..............66 58 51 49 47 46 45 49
20 FT WIND DIR..W W W W W W NW NW
20 FT WIND SPD..6 6 7 6 6 6 5 5
20 FT WIND GUST.16 18 18 16 16 16 14 14
MIX HGT (KFT)...2.0 2.4 2.8 3.4 4.0 4.4 4.5 3.7
TRANSP WIND DIR.W W W W W W W W
TRANSP WIND SPD.18 18 20 20 20 16 16 16
LVORI...........1 1 1 1 1 1 1 1
ADI.............44 59 73 80 87 90 91 72
MONDAY NIGHT
SKY/WEATHER.........MOSTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS EARLY IN THE EVENING.
CHANCE OF PCPN......20 PERCENT.
MIN TEMPERATURE.....AROUND 50.
MAX HUMIDITY........76 PERCENT.
WIND (20 FT)........NORTHWEST WINDS AROUND 5 MPH EARLY IN THE
EVENING BECOMING LIGHT, THEN BECOMING NORTHEAST
5 TO 8 MPH WITH GUSTS TO AROUND 22 MPH IN THE
LATE EVENING AND OVERNIGHT. GUSTY AND ERRATIC
WINDS EXPECTED NEAR THUNDERSTORMS EARLY IN THE
EVENING.
MAX LVORI...........4.
MIN ADI.............1.
INVERSION BEGIN.....2000.
TIME (EDT) 6 PM 8 PM 10 PM MIDNGT 2 AM 4 AM
SKY (%).........78 68 68 56 56 63
WEATHER TYPE....RNSHWR NONE NONE NONE NONE NONE
TSTM COV........S CHC
CHC OF PCPN (%).20 10 10 10 0 0
TEMP............81 71 67 63 58 55
RH..............51 76 70 62 67 66
20 FT WIND......NW 5 N 3 NE 5 NE 6 NE 6 NE 7
20 FT WIND GUST.13 11 14 16 18 20
MIX HGT (FT)....2300 700 1500 1400 1800 2500
TRANSPORT WIND..N 8 N 8 N 14 NE 18 NE 18 NE 22
LVORI...........2 4 3 2 3 3
ADI.............1 2 9 12 12 29
TUESDAY
SKY/WEATHER.........MOSTLY CLOUDY.
CHANCE OF PCPN......10 PERCENT.
MAX TEMPERATURE.....AROUND 61.
MIN HUMIDITY........41 PERCENT.
WIND (20 FT)........NORTHEAST WINDS 7 TO 10 MPH WITH GUSTS TO
AROUND 23 MPH.
MIXING HEIGHT.......MAX 3500 FT AGL.
TRANSPORT WINDS.....NORTHEAST 16 TO 24 MPH.
MAX ADI.............72.
INVERSION END.......0400.
TIME (EDT) 6 AM 9 AM NOON 3 PM
SKY (%).........70 75 66 63
WEATHER TYPE....NONE NONE NONE NONE
TSTM COV........
CHC OF PCPN (%).0 0 0 10
TEMP............52 52 59 61
RH..............63 56 42 41
20 FT WIND......NE 8G22 NE 10G23 NE 9G22 NE 8G18
MIX HGT (FT)....2600 2500 3100 3400
TRANSPORT WIND..NE 24 NE 22 NE 18 NE 16
LVORI...........1 1 1 1
ADI.............72 69 64 55
FORECASTER...MASKELL
REQUESTED BY...KELLY WETZEL
TYPE OF REQUEST...PRESCRIBED
.TAG 2607121.0/CHS
.DELDT 03/22/26
.FORMATTERVERSION 2.0.0
.EMAIL KELLY.WETZELWILSON@USDA.GOV
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