307
FNUS72 KGSP 211559
FWSGSP

Spot Forecast for GA Mountain Orchard South...USFS
National Weather Service Greenville-Spartanburg SC
1059 AM EST Fri Feb 21 2025

Forecast is based on ignition time of 1600 EST on February 21.
If conditions become unrepresentative...contact the National Weather
Service.

.DISCUSSION...
Relative humidity will drop to near 25 percent this afternoon as daytime
sunshine causes drier air to mix down to the surface and temperatures to
climb into the 40s. Winds will be light and variable, but generally veer
from north to northeast this morning, then southeast early this
afternoon before becoming south-southwest in the mid to late afternoon.
On Saturday, southwest winds 5-10 mph will gust 10-15 mph, mainly in the
late morning and afternoon.

.REST OF TODAY...

Sky/weather.........Sunny (0-10 percent).
Chance of thunder...0 percent.
Max temperature.....Around 46.
Min humidity........24 percent.
Wind (20 ft)........Light winds.
Mixing height.......3600 ft AGL.
Transport winds.....Southwest around 5 mph.
Smoke dispersal.....Poor (12900 knot-ft) early in the morning
                    increasing to fair (14400 knot-ft) in the
                    afternoon.
LVORI...............2.
ADI.................18 to 20.
Stability class.....2.
Pcpn amount.........0.00 inches.
Ceiling (FT)........25000.
Visibility (SM).....10.
Sfc pressure (in)...29.13.

TIME (EST)      4PM 5PM
Sky (%).........3   10
Weather cov.....
Weather type....
Tstm cov........
Chc of thdr (%).0   0
Temp............46  45
Dewpoint........12  13
RH..............24  27
20 FT wind dir..S   S
20 FT wind spd..3   3
20 FT wind gust.7   6
Mix hgt (kft)...3.6 3.2
Transp wind dir.SW  SW
Transp wind spd.5   5
LVORI...........2   2
ADI.............20  18
VRate kt-ft/100014  13
Ceiling (hft)...250 250
Visibility (sm).10  10
Sfc pres (in)...913 914

.TONIGHT...

Sky/weather.........Mostly clear (10-20 percent).
Chance of thunder...0 percent.
Min temperature.....Around 27.
Max humidity........63 percent.
Wind (20 ft)........Light winds.
Mixing height.......400 ft AGL.
Transport winds.....Southwest 5 to 6 mph shifting to the northwest
                    around 3 mph early in the morning.
Smoke dispersal.....Poor (1100 knot-ft).
LVORI...............3.
ADI.................2 to 3.
Stability class.....7.
Pcpn amount.........0.00 inches.
Ceiling (FT)........25000.
Visibility (SM).....10.
Sfc pressure (in)...29.14.

TIME (EST)      6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........17  23  21  22  17  20  13  11  15  17  19  21
Weather cov.....
Weather type....
Tstm cov........
Chc of thdr (%).0   0   0   0   0   0   0   0   0   0   0   0
Temp............42  39  36  35  33  32  31  30  29  29  27  27
Dewpoint........13  14  15  15  16  16  16  16  16  16  16  16
RH..............30  36  41  45  49  51  52  56  56  57  61  62
20 FT wind dir..S   S   SW  W   NW  NW  NW  N   N   N   N   N
20 FT wind spd..2   2   2   2   2   2   2   2   2   2   2   2
20 FT wind gust.6   5   5   3   5   5   5   5   5   5   5   5
Mix hgt (kft)...0.5 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4
Transp wind dir.SW  SW  SW  SW  W   W   W   NW  NW  NW  NW  NW
Transp wind spd.5   6   6   5   5   3   3   3   3   3   3   3
LVORI...........2   2   2   2   2   2   2   3   3   3   3   3
ADI.............2   3   3   2   2   2   2   2   2   2   2   2
VRate kt-ft/10002   2   2   2   1   1   1   1   1   1   1   1
Ceiling (hft)...250 250 250 250 250 250 250 250 250 250 250 250
Visibility (sm).10  10  10  10  10  10  10  10  10  10  10  10
Sfc pres (in)...914 915 916 917 918 917 917 917 916 915 914 914

.SATURDAY...

Sky/weather.........Mostly sunny (25-35 percent).
Chance of thunder...0 percent.
Max temperature.....Around 51.
Min humidity........27 percent.
Wind (20 ft)........Light winds becoming southwest around 5 mph in
                    the afternoon.
Mixing height.......4500 ft AGL.
Transport winds.....East around 3 mph shifting to the northwest
                    early in the morning, then shifting to the
                    southwest 5 to 12 mph in the late morning and
                    early afternoon shifting to the west 10 to 12
                    mph late in the afternoon.
Smoke dispersal.....Poor (1100 knot-ft) early in the morning
                    increasing to good (45500 knot-ft) in the
                    afternoon.
LVORI...............2.
ADI.................4 early in the morning increasing to 61 in the
                    afternoon.
Stability class.....2.
Pcpn amount.........0.00 inches.
Ceiling (FT)........24000 decreasing to 8000.
Visibility (SM).....10 in the morning and early afternoon.
Sfc pressure (in)...29.0.

TIME (EST)      6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........24  33  32  29  41  30  31  33  38  29  20  16
Weather cov.....
Weather type....
Tstm cov........
Chc of thdr (%).0   0   0   0   0   0   0   0   0   0   0   0
Temp............27  27  29  34  40  42  45  48  49  50  51  49
Dewpoint........16  16  18  19  20  19  19  18  18  18  19  19
RH..............62  63  62  53  44  40  35  30  29  28  27  30
20 FT wind dir..N   NE  NE  E   SE  S   S   SW  SW  SW  SW  SW
20 FT wind spd..2   1   1   2   2   3   5   5   5   5   5   5
20 FT wind gust.3   3   5   6   7   8   10  12  12  12  12  10
Mix hgt (kft)...0.4 0.4 0.4 1.1 1.9 2.7 3.6 4.3 4.5 4.5 4.5 3.1
Transp wind dir.E   NW  NW  S   S   SW  SW  SW  SW  SW  W   W
Transp wind spd.3   3   3   5   6   9   10  12  10  10  12  10
LVORI...........3   3   3   2   2   1   1   1   1   1   1   1
ADI.............4   4   4   7   14  32  45  59  55  55  61  40
VRate kt-ft/10001   1   1   5   10  22  32  43  41  41  46  28
Ceiling (hft)...250 250 240 160 140 140 100 100 100 90  80  80
Visibility (sm).10  10  10  10  10  10  10  10
Sfc pres (in)...915 915 915 914 914 912 909 907 905 903 901 900

$$
Forecaster...Jared Klein
Requested by...Greg Cohen
Type of request...PRESCRIBED
.TAG 2503441.0/GSP
.DELDT 02/21/25
.FormatterVersion 2.0.0