436
FNUS72 KCHS 210921
FWSCHS
SPOT FORECAST FOR DRIFTWOOD BU17_5_12...THE NATURE CONSERVANCY
NATIONAL WEATHER SERVICE CHARLESTON SC
421 AM EST FRI FEB 21 2025
FORECAST IS BASED ON IGNITION TIME OF 0800 EST ON FEBRUARY 21.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.
DISCUSSION
A COLD AND DRY AIR MASS WILL BUILD ACROSS THE BURN SITE TODAY AND
TONIGHT. SURFACE WINDS ARE FORECAST TO REMAIN GENERALLY STEADY FROM
THE NORTH-NORTHEAST BETWEEN 5 TO 10 MPH THROUGH MID-DAY, THEN WEAKENING
THIS AFTERNOON. AS TEMPERATURES WARM INTO THE UPPER 40S THIS
AFTERNOON, RELATIVE HUMIDITY SHOULD RANGE AROUND 30 PERCENT.
TONIGHT, A SURFACE RIDGE WILL BUILD ACROSS THE REGION. WINDS SHOULD
DECOUPLE THIS EVENING, REMAINING LIGHT TO CALM TONIGHT.
FOG POTENTIAL FOR TONIGHT: NONE
REST OF TODAY
SKY/WEATHER.........SUNNY.
CHANCE OF PCPN......0 PERCENT.
MAX TEMPERATURE.....AROUND 47.
MIN HUMIDITY........31 PERCENT.
WIND (20 FT)........NORTH WINDS 5 TO 9 MPH EARLY IN THE MORNING
BECOMING LIGHT, THEN BECOMING NORTH AROUND 5
MPH EARLY IN THE AFTERNOON BECOMING LIGHT.
MIXING HEIGHT.......MAX 3800 FT AGL.
TRANSPORT WINDS.....NORTH 16 TO 20 MPH DECREASING TO AROUND 10 MPH
IN THE AFTERNOON.
MAX ADI.............61.
INVERSION END.......0700
TIME (EST) 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........2 2 2 2 1 1 0 8 1 27
WEATHER TYPE....
TSTM COV........
CHC OF PCPN (%).0 0 0 0 0 0 0 0 0 0
TEMP............26 30 34 38 41 43 46 47 47 46
RH..............65 55 47 40 37 35 31 31 32 35
20 FT WIND DIR..N N N N N N N N NW N
20 FT WIND SPD..9 8 8 7 5 4 5 4 4 3
20 FT WIND GUST.12 11 11 9 4
MIX HGT (KFT)...2.5 2.6 2.8 3.0 3.2 3.5 3.8 3.8 3.7 3.6
TRANSP WIND DIR.N N N N N N N N N N
TRANSP WIND SPD.20 16 16 16 10 10 10 10 10 10
LVORI...........1 1 1 1 1 1 1 1 1 1
ADI.............61 54 53 51 46 39 42 42 41 35
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY.
CHANCE OF PCPN......0 PERCENT.
MIN TEMPERATURE.....AROUND 31.
MAX HUMIDITY........75 PERCENT.
WIND (20 FT)........LIGHT WINDS.
MAX LVORI...........4.
MIN ADI.............1.
INVERSION BEGIN.....1800
TIME (EST) 6 PM 8 PM 10 PM MIDNGT 2 AM 4 AM
SKY (%).........23 40 37 16 25 19
WEATHER TYPE....NONE NONE NONE NONE NONE NONE
TSTM COV........
CHC OF PCPN (%).0 0 0 0 0 0
TEMP............42 37 35 33 33 32
RH..............46 61 69 75 69 72
20 FT WIND......N 2 N 1 N 1 N 1 N 3 N 2
20 FT WIND GUST.4 2 2 2 4 4
MIX HGT (FT)....900 600 500 500 500 400
TRANSPORT WIND..N 6 N 6 N 4 N 4 N 4 N 4
LVORI...........2 3 3 4 3 3
ADI.............3 2 2 2 2 2
SATURDAY
SKY/WEATHER.........MOSTLY SUNNY.
CHANCE OF PCPN......0 PERCENT.
MAX TEMPERATURE.....AROUND 54.
MIN HUMIDITY........48 PERCENT.
WIND (20 FT)........LIGHT WINDS.
MIXING HEIGHT.......MAX 3400 FT AGL.
TRANSPORT WINDS.....NORTHEAST 6 TO 10 MPH SHIFTING TO THE EAST
AROUND 8 MPH IN THE AFTERNOON.
MAX ADI.............33.
INVERSION END.......1000
TIME (EST) 6 AM 9 AM NOON 3 PM
SKY (%).........8 9 20 39
WEATHER TYPE....NONE NONE NONE NONE
TSTM COV........
CHC OF PCPN (%).0 0 0 0
TEMP............32 42 53 54
RH..............75 62 48 54
20 FT WIND......N 4 NE 4 E 4 E 4
MIX HGT (FT)....400 1100 3000 2900
TRANSPORT WIND..NE 6 E 10 E 8 E 8
LVORI...........4 2 2 2
ADI.............6 13 30 29
FORECASTER...DIXON
REQUESTED BY...MACKENZIE
TYPE OF REQUEST...PRESCRIBED
.TAG 2503373.0/CHS
.DELDT 02/21/25
.FORMATTERVERSION 2.0.0
.EMAIL C.F.MACKENZIE@TNC.ORG
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