707
FNUS72 KGSP 101318
FWSGSP
SPOT FORECAST FOR WINDING STAIRS ALPHA...USFS
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
818 AM EST TUE FEB 10 2026
FORECAST IS BASED ON FORECAST START TIME OF 0800 EST ON FEBRUARY 10.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.
DISCUSSION
A LIGHT WEST-SOUTHWEST WIND OF 5 TO 10 MPH WILL BRING UNSEASONABLY
WARM CONDITIONS TO THE AREA TODAY. CHANCES FOR LIGHT RAIN SHOWERS
ARRIVE AHEAD OF A COLD FRONT LATE TONIGHT AND WEDNESDAY MORNING.
NORTHWEST WINDS BEHIND THE FRONT WILL USHER DRIER AIR INTO THE
AREA WITH RELATIVE HUMIDITY QUICKLY FALLING BETWEEN 20 AND 25
PERCENT WEDNESDAY AFTERNOON.
REST OF TODAY
SKY/WEATHER.........MOSTLY SUNNY (40-50 PERCENT).
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....AROUND 62.
MIN HUMIDITY........57 PERCENT.
WIND (20 FT)........LIGHT WINDS BECOMING WEST 5 TO 8 MPH IN THE LATE
MORNING AND AFTERNOON.
MIXING HEIGHT.......3200 FT AGL.
TRANSPORT WINDS.....WEST 13 TO 20 MPH.
SMOKE DISPERSAL.....POOR (5409 MPH-FT) EARLY IN THE MORNING
INCREASING TO EXCELLENT (63297 MPH-FT) IN THE
AFTERNOON.
LVORI...............3.
ADI.................14 TO 49.
STABILITY CLASS.....4.
PCPN AMOUNT.........0.00 INCHES.
CEILING (FT)........10900 DECREASING TO 7400 LATE IN THE MORNING,
THEN INCREASING TO 14400 IN THE LATE MORNING
AND EARLY AFTERNOON INCREASING TO 22000 LATE IN
THE AFTERNOON.
VISIBILITY (SM).....8.
SFC PRESSURE (IN)...27.06.
TIME (EST) 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........52 53 45 55 54 41 54 43 36 37
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CHC OF THDR (%).0 0 0 0 0 0 0 0 0 0
TEMP............43 48 53 56 57 60 61 62 61 59
DEWPOINT........38 42 46 47 47 48 47 46 46 46
RH..............83 81 78 72 69 63 61 57 58 61
20 FT WIND DIR..N NW W W W W W W W W
20 FT WIND SPD..0 0 1 4 5 6 7 8 6 4
20 FT WIND GUST.8 9 13 17 21 22 16 17 17 15
MIX HGT (KFT)...0.4 0.6 0.9 1.4 2.1 2.7 3.1 3.2 3.2 2.5
TRANSP WIND DIR.W W W W W W W W W SW
TRANSP WIND SPD.13 13 15 17 20 18 18 18 20 17
LVORI...........4 4 3 3 3 1 1 1 1 1
ADI.............14 14 19 27 37 40 43 46 49 37
VRATE MPH-FT/1K.5 8 14 24 39 46 53 59 63 43
CEILING (HFT)...109 74 144 170 161 175 237 230 220 226
VISIBILITY (SM).8 8 8 9 8 8 9 9 9 9
SFC PRES (IN)...715 716 716 715 714 712 710 707 706 706
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY (40-50 PERCENT) THEN BECOMING
MOSTLY CLOUDY (50-60 PERCENT) LATE THIS EVENING
THEN BECOMING MOSTLY CLOUDY (65-75 PERCENT).
CHANCE OF RAIN OVERNIGHT. RAIN LIKELY AFTER 3 AM.
PATCHY FOG EARLY IN THE MORNING.
CHANCE OF THUNDER...10 PERCENT.
MIN TEMPERATURE.....AROUND 49.
MAX HUMIDITY........92 PERCENT.
WIND (20 FT)........LIGHT WINDS. GUSTS UP TO 20 MPH AFTER 3 AM.
MIXING HEIGHT.......600 FT AGL.
TRANSPORT WINDS.....WEST 14 TO 20 MPH.
SMOKE DISPERSAL.....FAIR (20025 MPH-FT) EARLY IN THE EVENING
DECREASING TO POOR (9782 MPH-FT) LATE IN THE
NIGHT.
LVORI...............4.
ADI.................6 TO 9.
STABILITY CLASS.....6.
PCPN AMOUNT.........0.12 INCHES.
CEILING (FT)........22600 DECREASING TO 1700.
VISIBILITY (SM).....6 DECREASING TO 4 AFTER 3 AM.
SFC PRESSURE (IN)...26.96.
TIME (EST) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY (%).........47 53 45 55 62 65 69 72 74 85 85 81
WEATHER COV..... CHC CHC CHC LKY LKY
WEATHER TYPE.... RN RN RN RN RN
TSTM COV........
CHC OF THDR (%).0 0 0 0 0 0 0 0 0 0 10 10
TEMP............57 54 54 53 53 52 52 52 51 52 52 50
DEWPOINT........45 45 44 44 43 44 45 45 46 47 47 47
RH..............64 70 70 71 70 74 76 78 82 84 85 87
20 FT WIND DIR..W W W W W W W W W W W NW
20 FT WIND SPD..2 2 2 2 2 2 2 3 2 2 3 2
20 FT WIND GUST.14 12 13 14 15 16 17 18 18 20 20 18
MIX HGT (KFT)...1.1 0.6 0.7 0.6 0.8 1.0 1.0 1.2 0.8 0.8 0.6 0.7
TRANSP WIND DIR.W W W W W W W W W W W NW
TRANSP WIND SPD.14 16 15 17 17 17 20 17 18 17 16 17
LVORI...........3 3 3 3 3 3 4 4 4 4 4 5
ADI.............6 7 7 8 8 8 9 8 8 8 7 8
VRATE MPH-FT/1K.15 10 11 10 13 17 19 20 15 14 10 12
CEILING (HFT)...226 246 236 232 232 166 99 33 29 24 20 17
VISIBILITY (SM).9 9 9 9 9 8 8 7 7 6 4 4
SFC PRES (IN)...707 708 708 708 707 706 704 702 700 698 697 696
WEDNESDAY
SKY/WEATHER.........MOSTLY CLOUDY (80-90 PERCENT) THEN BECOMING
MOSTLY SUNNY (20-30 PERCENT). PATCHY FOG EARLY
IN THE MORNING. RAIN LIKELY EARLY IN THE
MORNING, THEN CHANCE OF RAIN EARLY IN THE
MORNING AND SLIGHT CHANCE OF RAIN LATE IN THE
MORNING.
CHANCE OF THUNDER...10 PERCENT.
MAX TEMPERATURE.....AROUND 54.
MIN HUMIDITY........32 PERCENT.
WIND (20 FT)........LIGHT WINDS BECOMING NORTHWEST AROUND 5 MPH
LATE IN THE AFTERNOON, THEN BECOMING LIGHT LATE
IN THE AFTERNOON.
MIXING HEIGHT.......3600 FT AGL.
TRANSPORT WINDS.....NORTHWEST 14 TO 21 MPH.
SMOKE DISPERSAL.....POOR (9437 MPH-FT) EARLY IN THE MORNING
INCREASING TO EXCELLENT (73885 MPH-FT) IN THE
AFTERNOON.
LVORI...............3.
ADI.................15 TO 54.
STABILITY CLASS.....4.
PCPN AMOUNT.........LESS THAN 0.10 INCHES.
CEILING (FT)........1200 INCREASING TO 30000 IN THE LATE MORNING
AND EARLY AFTERNOON, THEN DECREASING TO LESS
THAN 0.1 LATE IN THE AFTERNOON INCREASING TO
30000 LATE IN THE AFTERNOON.
VISIBILITY (SM).....4 INCREASING TO 6 EARLY IN THE MORNING.
SFC PRESSURE (IN)...26.96.
TIME (EST) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........88 91 83 85 48 40 33 25 19 12 6 6
WEATHER COV.....LKY CHC CHC CHC SCH
WEATHER TYPE....RN RN RN RN RN
TSTM COV........
CHC OF THDR (%).10 0 0 0 0 0 0 0 0 0 0 0
TEMP............50 50 49 49 50 51 52 52 53 53 51 49
DEWPOINT........47 46 47 45 42 39 35 31 27 25 22 21
RH..............91 87 92 87 75 63 52 43 37 33 32 34
20 FT WIND DIR..NW NW NW NW NW NW NW NW NW NW NW NW
20 FT WIND SPD..2 2 2 2 2 3 3 5 5 5 5 3
20 FT WIND GUST.17 16 16 16 16 17 17 18 18 18 18 16
MIX HGT (KFT)...0.7 0.7 1.0 1.2 1.4 2.0 2.7 3.2 3.5 3.6 3.3 2.5
TRANSP WIND DIR.NW NW NW NW N N N N N N N N
TRANSP WIND SPD.16 14 16 17 17 17 18 18 20 21 21 18
LVORI...........4 4 5 4 3 1 1 1 1 1 1 1
ADI.............18 15 20 24 27 33 41 46 51 54 52 40
VRATE MPH-FT/1K.11 9 16 20 24 34 49 59 69 74 68 46
CEILING (HFT)...15 12 12 12 300 300 300 300 300 300 0.0 300
VISIBILITY (SM).4 5 6 7 8 8 8 8
SFC PRES (IN)...696 696 698 700 702 702 702 701 701 701 702 704
FORECASTER...KLEIN
REQUESTED BY...JASON BOONE
TYPE OF REQUEST...WILDFIRE
.TAG 2602287.0/GSP
.DELDT 02/10/26
.FORMATTERVERSION 2.0.0
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