549
FNUS72 KFFC 130920
FWSFFC

Spot Forecast for Cl51Whitehall Project...USFS
National Weather Service Peachtree City GA
520 AM EDT Sun Sep 13 2026

Forecast is based on ignition time of 0755 EDT on September 13.
If conditions become unrepresentative...contact the National Weather
Service.

.DISCUSSION...

High LVORI this morning as the airmass remains moist in the wake
of yesterday`s rainfall. Patchy dense fog is possible through 9AM.
Rain chances are negligible this afternoon, with mostly sunny
skies expected. Mixing heights are likely to peak around 6-6.5kft
at 4PM. Surface winds will remain out of the NW at 4 to 7 MPH.


.TONIGHT...

Sky/weather.........Mostly clear (5-15 percent).
CWR.................0 percent.
Chance of thunder...0 percent.
Min temperature.....Around 68.
Max humidity........94 percent.
Dewpoint............69.
Wind (20 ft)........Light winds.
Mixing height.......300 ft AGL.
Transport winds.....Northwest 6 to 8 mph shifting to the north 5 to
                    6 mph after 3 am.
Smoke dispersal.....Good (32300 knot-ft) early in the evening
                    decreasing to poor (1400 knot-ft) late in the
                    night.
LVORI...............4.
ADI.................47 early in the evening decreasing to 2 late in
                    the night.
Pcpn amount.........0.00 inches.
CEILING (KFT).......5.0 increasing to 25 in the late evening and
                    overnight.

TIME (EDT)      6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........18  13  7   3   6   9   8   3   4   3   2   3
Weather cov.....
Weather type....
Tstm cov........
CWR.............0   0   0   0   0   0   0   0   0   0   0   0
Chc of thdr (%).0   0   0   0   0   0   0   0   0   0   0   0
Temp............90  88  82  79  77  76  75  74  73  72  70  70
Dewpoint........70  71  70  70  70  70  69  69  69  68  68  67
RH..............51  57  67  74  79  81  84  85  87  89  92  93
20 FT wind dir..W   NW  W   W   NW  NW  NW  NW  NW  NW  NW  NW
20 FT wind spd..3   2   2   1   1   1   1   1   1   1   1   1
20 FT wind gust.12  8   7   7   7   7   7   6   6   6   6   6
Mix hgt (kft)...4.7 1.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.3 0.3
Transp wind dir.NW  W   W   NW  W   NW  NW  N   N   N   N   N
Transp wind spd.8   7   6   7   7   7   7   7   6   6   6   5
LVORI...........1   3   3   3   4   5   5   5   6   6   7   7
ADI.............47  3   3   3   3   3   3   3   3   3   2   2
Vrate kt-ft/1K..32  8   2   3   3   3   3   2   2   2   2   1
Ventrate Cat....PR  PR  PR  PR  PR  PR  PR  PR  PR  PR  PR  PR
Ceiling (kft)...5.0 5.0 5.0 25  25  25  25  25  25  25  25  25

.MONDAY...

Sky/weather.........Sunny (0-10 percent).
CWR.................0 percent.
Chance of thunder...0 percent.
Max temperature.....Around 96.
Min humidity........43 percent.
Dewpoint............69.
Wind (20 ft)........Light winds.
Mixing height.......6100 ft AGL.
Transport winds.....North 5 to 7 mph.
Smoke dispersal.....Poor (1400 knot-ft) early in the morning
                    increasing to good (34800 knot-ft) in the
                    afternoon.
LVORI...............4.
ADI.................2 early in the morning increasing to 49 in the
                    afternoon.
Pcpn amount.........0.00 inches.
CEILING (KFT).......25.

TIME (EDT)      6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........8   6   8   8   10  11  9   12  11  1   3   12
Weather cov.....
Weather type....
Tstm cov........
CWR.............0   0   0   0   0   0   0   0   0   0   0   0
Chc of thdr (%).0   0   0   0   0   0   0   0   0   0   0   0
Temp............69  69  69  73  80  85  89  91  93  94  95  95
Dewpoint........67  67  67  70  71  71  71  71  70  70  70  69
RH..............94  93  93  87  74  63  56  52  47  46  44  43
20 FT wind dir..N   NW  N   N   NE  NE  NE  NE  NE  NE  NE  NE
20 FT wind spd..1   1   2   1   1   2   2   2   2   2   2   2
20 FT wind gust.6   6   7   6   6   7   8   8   8   8   8   9
Mix hgt (kft)...0.3 0.3 0.3 0.8 1.3 2.5 3.8 5.0 5.8 6.1 5.9 6.0
Transp wind dir.N   N   N   NE  NE  NE  NE  NE  N   N   N   N
Transp wind spd.5   5   5   6   6   5   6   6   6   6   6   7
LVORI...........7   6   6   5   3   2   2   1   1   1   1   1
ADI.............2   5   5   6   10  17  28  37  43  45  44  49
Vrate kt-ft/1K..2   2   1   4   6   11  19  26  30  32  31  35
Ventrate Cat....PR  PR  PR  PR  PR  PR  PR  PR  PR  PR  PR  PR
Ceiling (kft)...25  25  25  25  25  25  25  25  25  25  25  25

$$
Forecaster...LMarlow
Requested by...Benjamin Thigpen
Type of request...PRESCRIBED
.TAG 2621579.2/FFC
.DELDT 09/13/26
.FormatterVersion 2.0.0
.EMAIL benjamin.thigpen@uga.edu