635
FNUS72 KCHS 152100
FWSCHS
SPOT FORECAST FOR FMF C125 PLANNING...USFS
NATIONAL WEATHER SERVICE CHARLESTON SC
400 PM EST THU JAN 15 2026
FORECAST IS BASED ON IGNITION TIME OF 1000 EST ON JANUARY 16.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.
DISCUSSION
THE CENTER OF A DRY AIR MASS WILL BUILD ACROSS THE
SOUTHEAST U.S. ON FRIDAY. THE TEMPERATURES SHOULD RISE ABOVE 40
DEGREES AT THE BURN SITE AROUND 11 AM. THE RH IS EXPECTED TO BE
AROUND 30% AT THAT TIME AND THE VENT RATE WILL BE AROUND 15,000.
THE HIGH TEMPERATURE SHOULD BE AROUND 48 DEGREES FRIDAY. WHILE THE
AFTERNOON RH SHOULD BE AROUND 25 PERCENT, IT COULD BE HIGHER THAN
FORECASTED BASED ON THE OBSERVED VALUES THURSDAY. THE HIGHEST
VENT RATE IS FORECASTED TO BE NEAR 34,000 AROUND 2 PM, THEN
GRADUALLY DROP THE REST OF THURSDAY AFTERNOON.
FRIDAY
SKY/WEATHER.........SUNNY.
CHANCE OF PCPN......0 PERCENT.
MAX TEMPERATURE.....AROUND 48.
MIN HUMIDITY........AROUND 25 PERCENT.
WIND (20 FT)........LIGHT WINDS, BECOME SOUTHWEST 3 TO 5 MPH IN THE
AFTERNOON.
MIXING HEIGHT.......MAX 2800 FT AGL.
TRANSPORT WINDS.....SOUTHWEST 6 TO 12 MPH.
MAX ADI.............39.
INVERSION END.......10 AM.
TIME (EST) 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........0 0 1 3 4 2 3 6
WEATHER TYPE....
TSTM COV........
CHC OF PCPN (%).0 0 0 0 0 0 0 0
TEMP............34 40 43 45 47 48 48 46
RH..............38 30 27 25 25 26 30 37
20 FT WIND DIR..SW SW SW SW SW SW S S
20 FT WIND SPD..1 2 3 4 4 4 4 3
20 FT WIND GUST.4 7 9 11 11 11 11 11
MIX HGT (KFT)...1.7 2.2 2.5 2.8 2.8 2.7 2.5 1.6
TRANSP WIND DIR.SW SW SW SW SW SW SW SW
TRANSP WIND SPD.6 6 12 12 12 12 12 12
LVORI...........2 2 2 1 1 1 1 2
ADI.............10 19 29 35 39 38 36 24
FRIDAY NIGHT
SKY/WEATHER.........MOSTLY CLEAR.
CHANCE OF PCPN......0 PERCENT.
MIN TEMPERATURE.....AROUND 34.
MAX HUMIDITY........92 PERCENT.
WIND (20 FT)........LIGHT WINDS.
MAX LVORI...........8.
MIN ADI.............1.
INVERSION BEGIN.....6 PM.
TIME (EST) 6 PM 8 PM 10 PM MIDNGT 2 AM 4 AM
SKY (%).........5 5 7 11 14 17
WEATHER TYPE....NONE NONE NONE NONE NONE NONE
TSTM COV........
CHC OF PCPN (%).0 0 0 0 0 0
TEMP............42 37 36 35 36 37
RH..............48 70 79 89 89 89
20 FT WIND......S 2 S 2 SW 2 SW 2 SW 2 SW 2
20 FT WIND GUST.11 9 9 9 9 11
MIX HGT (FT)....500 500 500 400 400 400
TRANSPORT WIND..S 2 S 2 SW 2 SW 2 SW 2 SW 2
LVORI...........2 4 4 7 7 7
ADI.............1 1 1 1 1 1
SATURDAY
SKY/WEATHER.........MOSTLY SUNNY.
CHANCE OF PCPN......0 PERCENT.
MAX TEMPERATURE.....AROUND 63.
MIN HUMIDITY........48 PERCENT.
WIND (20 FT)........LIGHT WINDS BECOMING SOUTHWEST 5 TO 6 MPH WITH
GUSTS TO AROUND 16 MPH IN THE LATE MORNING AND
AFTERNOON, THEN BECOMING LIGHT LATE IN THE
AFTERNOON.
MIXING HEIGHT.......MAX 4100 FT AGL.
TRANSPORT WINDS.....SOUTHWEST 6 TO 14 MPH INCREASING TO 14 TO 18
MPH IN THE AFTERNOON.
MAX ADI.............65.
INVERSION END.......9 AM.
TIME (EST) 6 AM 9 AM NOON 3 PM
SKY (%).........28 26 41 52
WEATHER TYPE....NONE NONE NONE NONE
TSTM COV........
CHC OF PCPN (%).0 0 0 0
TEMP............37 49 60 62
RH..............92 71 51 50
20 FT WIND......SW 3G11 SW 5G13 SW 6G16 SW 5G13
MIX HGT (FT)....500 1700 3500 3900
TRANSPORT WIND..SW 6 SW 14 SW 18 SW 14
LVORI...........6 3 1 1
ADI.............4 27 60 59
FORECASTER...STROZ
REQUESTED BY...KELLY WETZEL
TYPE OF REQUEST...PRESCRIBED
.TAG 2600259.0/CHS
.DELDT 01/15/26
.FORMATTERVERSION 2.0.0
.EMAIL KELLY.WETZELWILSON@USDA.GOV
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