263
FNUS72 KGSP 170808
FWSGSP
SPOT FORECAST FOR SAWMILL BRANCH...USFS
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
408 AM EDT FRI APR 17 2026
FORECAST IS BASED ON FORECAST START TIME OF 0600 EDT ON APRIL 17.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.
DISCUSSION
WINDS MOSTLY FROM THE NORTHWEST 3 TO 5 MPH THROUGH THIS EVENING.
EXCELLENT RH OF 85-95% THIS MORNING, GIVING WAY TO ANOTHER VERY DRY AND
VERY WARM AFTERNOON. THIS AFTERNOON'S TEMPERATURE IS EXPECTED TO BE
VERY SIMILAR TO THURSDAY, WHILE RH IS EXPECTED TO BE SLIGHTLY LOWER.
RH INCREASES A BIT FOR SATURDAY ALONG WITH TEMPERATURES. SATURDAY WILL
LIKELY BE THE HOTTEST DAY OF THE WEEK. MINIMUM RH IS EXPECTED TO BE
MORE IN THE 35-40% RANGE SATURDAY, BUT WINDS WILL ALSO PICK UP FROM THE
S AND SW, WITH GUSTS OF 17-21 MPH EXPECTED FROM LATE MORNING THROUGH THE
AFTERNOON.
TODAY
SKY/WEATHER.........SUNNY (20-30 PERCENT).
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....AROUND 78.
MIN HUMIDITY........30-34 PERCENT.
WIND (20 FT)........LIGHT WINDS BECOMING NW 3-5 MPH LATE THIS
MORNING.
MIXING HEIGHT.......5700 FT AGL.
TRANSPORT WINDS.....NORTHWEST 6 TO 12 MPH.
SMOKE DISPERSAL.....POOR (0 MPH-FT) EARLY IN THE MORNING INCREASING
TO GOOD (58003 MPH-FT) IN THE AFTERNOON.
LVORI...............4.
ADI.................3 EARLY IN THE MORNING INCREASING TO 71 IN THE
AFTERNOON.
STABILITY CLASS.....4.
PCPN AMOUNT.........0.00 INCHES.
CEILING (FT)........22600.
VISIBILITY (SM).....9.
SFC PRESSURE (IN)...27.03.
TIME (EDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........31 27 22 19 24 40 38 26 19 10 14 11
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CHC OF THDR (%).0 0 0 0 0 0 0 0 0 0 0 0
TEMP............55 54 55 59 63 68 72 74 76 78 78 78
DEWPOINT........52 51 51 52 52 52 51 50 47 46 45 46
RH..............89 89 86 79 67 56 49 43 36 32 31 32
20 FT WIND DIR..W W NW NW NW NW NW NW W NW W NW
20 FT WIND SPD..2 1 1 2 3 5 5 5 6 6 5 5
20 FT WIND GUST.6 6 6 6 7 8 9 9 10 10 10 10
MIX HGT (KFT)...0.1 0.1 0.1 0.6 1.6 2.8 3.8 4.5 5.3 5.6 5.7 5.7
TRANSP WIND DIR.NW NW NW NW NW NW NW W W W W W
TRANSP WIND SPD.6 6 6 7 9 10 10 12 9 10 9 9
LVORI...........6 6 5 4 3 1 1 1 1 1 1 1
ADI.............3 6 6 7 18 38 51 65 60 71 65 64
VRATE MPH-FT/1K.0 0 0 4 14 29 40 52 48 58 53 52
CEILING (HFT)...241 244 249 249 250 250 250 247 244 248 250 226
VISIBILITY (SM).9 9 9 9 9 9 9 9 9 9 9 9
SFC PRES (IN)...707 709 710 711 711 711 710 709 708 706 704 703
TONIGHT
SKY/WEATHER.........MOSTLY CLEAR (15-25 PERCENT).
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....AROUND 57.
MAX HUMIDITY........74 PERCENT.
WIND (20 FT)........LIGHT WINDS.
MIXING HEIGHT.......0 FT AGL.
TRANSPORT WINDS.....WEST 3 TO 9 MPH SHIFTING TO THE SOUTH 5 TO 6
MPH IN THE LATE EVENING AND OVERNIGHT.
SMOKE DISPERSAL.....GOOD (46955 MPH-FT) EARLY IN THE EVENING
DECREASING TO POOR (0 MPH-FT) LATE IN THE
NIGHT.
LVORI...............2.
ADI.................58 EARLY IN THE EVENING DECREASING TO 2 LATE IN
THE NIGHT.
STABILITY CLASS.....4.
PCPN AMOUNT.........0.00 INCHES.
CEILING (FT)........22200.
VISIBILITY (SM).....8.
SFC PRESSURE (IN)...27.01.
TIME (EDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY (%).........10 15 20 19 14 15 23 23 16 20 26 18
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CHC OF THDR (%).0 0 0 0 0 0 0 0 0 0 0 0
TEMP............77 74 70 67 64 62 61 60 59 59 59 58
DEWPOINT........46 48 50 49 49 49 49 48 48 48 48 48
RH..............33 40 48 54 59 63 63 63 67 68 69 71
20 FT WIND DIR..NW NW NW SW S SW S S SW S S SW
20 FT WIND SPD..2 2 2 2 2 2 2 2 2 2 2 2
20 FT WIND GUST.9 8 7 6 6 5 6 6 6 6 6 7
MIX HGT (KFT)...5.1 3.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1
TRANSP WIND DIR.W W W W S S S S S S S S
TRANSP WIND SPD.9 7 5 3 5 6 5 6 6 6 6 6
LVORI...........1 2 2 2 3 3 3 3 3 3 3 3
ADI.............58 3 2 2 2 3 2 3 3 3 3 3
VRATE MPH-FT/1K.47 21 0 0 0 0 0 0 0 0 0 0
CEILING (HFT)...226 226 222 230 244 250 250 250 250 245 240 235
VISIBILITY (SM).9 9 9 9 9 9 9 9 9 9 8 8
SFC PRES (IN)...703 704 705 705 705 705 704 703 702 701 701 701
SATURDAY
SKY/WEATHER.........MOSTLY SUNNY (35-45 PERCENT).
CHANCE OF THUNDER...10 PERCENT.
MAX TEMPERATURE.....AROUND 79.
MIN HUMIDITY........39 PERCENT.
WIND (20 FT)........LIGHT WINDS BECOMING SOUTHWEST 5 TO 8 MPH WITH
GUSTS TO AROUND 20 MPH LATE IN THE MORNING.
MIXING HEIGHT.......5600 FT AGL.
TRANSPORT WINDS.....SOUTH 8 TO 17 MPH SHIFTING TO THE SOUTHWEST
AROUND 18 MPH LATE IN THE AFTERNOON.
SMOKE DISPERSAL.....POOR (0 MPH-FT) EARLY IN THE MORNING INCREASING
TO EXCELLENT (102657 MPH-FT) IN THE AFTERNOON.
LVORI...............2.
ADI.................4 EARLY IN THE MORNING INCREASING TO 116 IN THE
AFTERNOON.
STABILITY CLASS.....4.
PCPN AMOUNT.........0.00 INCHES.
CEILING (FT)........17000 DECREASING TO 8200 LATE IN THE AFTERNOON.
VISIBILITY (SM).....9.
SFC PRESSURE (IN)...26.94.
TIME (EDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........24 28 24 26 28 35 41 47 53 52 51 50
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CHC OF THDR (%).0 0 0 0 0 0 0 0 10 10 10 10
TEMP............58 57 58 62 68 72 75 77 78 79 79 78
DEWPOINT........49 48 50 50 51 52 54 53 53 52 52 51
RH..............72 73 74 65 56 50 47 44 41 40 39 40
20 FT WIND DIR..S S SW SW SW SW SW SW SW SW SW SW
20 FT WIND SPD..2 2 2 2 3 5 6 7 8 8 8 8
20 FT WIND GUST.7 6 7 9 12 14 16 17 18 20 20 18
MIX HGT (KFT)...0.1 0.1 0.1 1.1 2.3 3.6 4.5 5.0 5.3 5.6 5.6 5.0
TRANSP WIND DIR.S S S S S SW SW SW SW SW SW SW
TRANSP WIND SPD.8 8 8 10 14 16 17 17 17 18 18 18
LVORI...........3 3 3 3 1 1 1 1 1 1 1 1
ADI.............4 8 8 14 42 74 98 100 104 116 116 107
VRATE MPH-FT/1K.0 0 0 11 31 58 78 87 91 103 103 93
CEILING (HFT)...203 170 138 131 125 118 106 94 82 82 82 300
VISIBILITY (SM).9 9 9 9 9 9 9 9 9
SFC PRES (IN)...701 702 703 704 704 704 703 701 699 697 695 694
FORECASTER...JDL
REQUESTED BY...NC-NCC DISPATCH
TYPE OF REQUEST...WILDFIRE
.TAG 2610587.1/GSP
.DELDT 04/17/26
.FORMATTERVERSION 2.0.0
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