378
FNUS72 KCHS 221925
FWSCHS
SPOT FORECAST FOR PLANNING FAIRLAWN B1_5/6/7...THE NATURE CONSERVANCY
NATIONAL WEATHER SERVICE CHARLESTON SC
325 PM EDT SUN MAR 22 2026
FORECAST IS BASED ON IGNITION TIME OF 0900 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. WIND GUSTS COULD
APPROACH 20 MPH PRIOR TO THE FRONT PUSHING THROUGH. 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/TSTORM 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. THE FOG POTENTIAL MONDAY NIGHT INTO
TUESDAY MORNING IS VERY LOW.
MONDAY
SKY/WEATHER.........SUNNY THEN BECOMING PARTLY SUNNY.
CHANCE OF PCPN......10 PERCENT.
MAX TEMPERATURE.....AROUND 85.
MIN HUMIDITY........46 PERCENT.
WIND (20 FT)........WEST WINDS 5 TO 7 MPH WITH GUSTS TO AROUND 18
MPH SHIFTING TO THE NORTHWEST AROUND 5 MPH LATE
IN THE AFTERNOON.
MIXING HEIGHT.......MAX 4300 FT AGL.
TRANSPORT WINDS.....WEST 16 TO 18 MPH.
MAX ADI.............84.
INVERSION END.......0900.
TIME (EDT) 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........12 12 19 7 7 9 23 33 61
WEATHER TYPE....
TSTM COV........
CHC OF PCPN (%).0 0 0 0 0 0 0 10 10
TEMP............66 71 76 80 83 84 85 85 83
RH..............73 68 60 52 47 48 46 48 49
20 FT WIND DIR..W W W W W W W W NW
20 FT WIND SPD..5 6 6 7 6 6 6 5 5
20 FT WIND GUST.16 16 18 18 16 14 14 13 13
MIX HGT (KFT)...1.4 1.9 2.3 2.7 3.1 3.7 4.1 4.3 3.6
TRANSP WIND DIR.W W W W W W W W W
TRANSP WIND SPD.16 16 16 18 18 18 16 16 16
LVORI...........3 1 1 1 1 1 1 1 1
ADI.............25 41 56 66 71 77 84 81 53
MONDAY NIGHT
SKY/WEATHER.........MOSTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS EARLY IN THE EVENING.
CHANCE OF PCPN......20 PERCENT.
MIN TEMPERATURE.....AROUND 52.
MAX HUMIDITY........73 PERCENT.
WIND (20 FT)........LIGHT WINDS BECOMING NORTHEAST 5 TO 9 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...........3.
MIN ADI.............1.
INVERSION BEGIN.....2000.
TIME (EDT) 6 PM 8 PM 10 PM MIDNGT 2 AM 4 AM
SKY (%).........73 73 70 60 56 66
WEATHER TYPE....RNSHWR NONE NONE NONE NONE NONE
TSTM COV........S CHC
CHC OF PCPN (%).20 10 10 10 0 0
TEMP............81 72 69 64 59 56
RH..............53 73 68 63 64 66
20 FT WIND......NW 4 N 3 NE 5 NE 6 NE 7 NE 8
20 FT WIND GUST.13 11 14 18 18 22
MIX HGT (FT)....2400 700 1500 1700 1700 2400
TRANSPORT WIND..N 8 N 8 N 14 NE 20 NE 20 NE 22
LVORI...........2 3 3 2 2 3
ADI.............1 2 9 12 22 29
TUESDAY
SKY/WEATHER.........MOSTLY CLOUDY.
CHANCE OF PCPN......10 PERCENT.
MAX TEMPERATURE.....AROUND 63.
MIN HUMIDITY........43 PERCENT.
WIND (20 FT)........NORTHEAST WINDS 8 TO 9 MPH WITH GUSTS TO AROUND
23 MPH.
MIXING HEIGHT.......MAX 3600 FT AGL.
TRANSPORT WINDS.....NORTHEAST 18 TO 24 MPH.
MAX ADI.............73.
INVERSION END.......0400.
TIME (EDT) 6 AM 9 AM NOON 3 PM
SKY (%).........73 75 67 64
WEATHER TYPE....NONE NONE NONE NONE
TSTM COV........
CHC OF PCPN (%).0 0 0 10
TEMP............54 53 59 62
RH..............61 54 45 43
20 FT WIND......NE 9G22 NE 9G23 NE 9G22 NE 8G18
MIX HGT (FT)....2600 2500 3100 3400
TRANSPORT WIND..NE 24 NE 24 NE 18 NE 18
LVORI...........1 1 1 1
ADI.............53 73 64 59
FORECASTER...MASKELL
REQUESTED BY...CHELSEA MACKENZIE
TYPE OF REQUEST...PRESCRIBED
.TAG 2607136.0/CHS
.DELDT 03/22/26
.FORMATTERVERSION 2.0.0
.EMAIL C.F.MACKENZIE@TNC.ORG
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