Spot Forecast
Issued by NWS Atlanta, GA

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FNUS72 KFFC 160055
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Spot Forecast for BRRD - Brown Tract...USFS
National Weather Service Peachtree City GA
755 PM EST Mon Dec 15 2025

Forecast is based on ignition time of 0700 EST on December 16.
If conditions become unrepresentative...contact the National Weather
Service.

.DISCUSSION...

*Per phone call, this forecast is for the Bird Dog, not Brown, Rx.*
*Forecast will be rerun during morning hours.*

Clear, sunny skies are expected Tuesday for the burn location.
Temperatures will start in the 20s but quickly warm into the 50s
through the afternoon. Afternoon mixing will cause RHs to fall
into the low 20s by the afternoon hours with min RH approaching 20
percent. Winds will be near calm in the morning, likely
influenced a bit by drainage along the creek basin of nearby
terrain from the SE and SW. Winds pick up a bit from the SW to W
by the afternoon in the model forecast but stay light at 3-7 mph.
I`d expect this means terrain heating effects may cause a bit of
variability in the actual direction, but overall winds should
remain light. Mixing heights will be shallow, only getting to near
2000 ft by the afternoon. Transport winds also remain light which
makes for poor dispersal and low ADI values.

Overnight, air remains dry near the surface, so any smoke fog
concerns should be near zero. Winds are very light to near calm,
so drainage effects will once again be the primary source of any
winds. Cloud cover will begin to pick up through the night and is
expected to stick around through Wednesday. No precipitation
expected with this, just cloud cover at this time.



.TUESDAY...

Sky/weather.........Sunny (0-10 percent).
CWR.................0 percent.
Chance of thunder...0 percent.
Max temperature.....Around 54.
Min humidity........21 percent.
Dewpoint............10 increasing to 19.
Wind (20 ft)........Light winds.
Mixing height.......1700 ft AGL.
Transport winds.....Southwest around 5 mph shifting to the west 3
                    to 7 mph in the late morning and early
                    afternoon, then shifting to the southwest
                    around 6 mph late in the afternoon.
Smoke dispersal.....Poor (1400 knot-ft).
LVORI...............3.
ADI.................4 to 14.
Pcpn amount.........0.00 inches.
CEILING (KFT).......25.

TIME (EST)      7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........5   5   6   6   4   4   4   5   5   4   4
Weather cov.....
Weather type....
Tstm cov........
CWR.............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
Temp............22  23  29  35  41  48  51  52  53  52  49
Dewpoint........9   10  10  10  10  11  12  14  17  19  20
RH..............57  56  44  35  27  22  21  22  24  27  31
20 FT wind dir..N   N   N   N   W   W   W   W   W   W   SW
20 FT wind spd..0   0   0   0   1   1   2   2   2   2   1
20 FT wind gust.2   2   2   3   5   6   7   7   6   6   6
Mix hgt (kft)...0.5 0.4 0.4 1.0 1.2 1.4 1.7 1.6 1.5 1.0 0.5
Transp wind dir.SW  SW  NW  W   W   W   W   W   W   SW  SW
Transp wind spd.5   5   3   5   5   7   6   7   7   6   6
LVORI...........3   3   2   2   2   2   2   2   2   2   2
ADI.............4   4   4   6   7   12  12  14  14  9   6
Vrate kt-ft/1K..2   2   1   4   5   8   8   9   9   6   2
Ventrate Cat....PR  PR  PR  PR  PR  PR  PR  PR  PR  PR  PR
Ceiling (kft)...25  25  25  25  25  25  25  25  25  25  25

.TUESDAY NIGHT...

Sky/weather.........Partly cloudy (20-30 percent) then becoming
                    mostly cloudy (55-65 percent).
CWR.................0 percent.
Chance of thunder...0 percent.
Min temperature.....Around 29.
Max humidity........57 percent.
Dewpoint............18 decreasing to 14 after 3 am.
Wind (20 ft)........Light winds.
Mixing height.......400 ft AGL.
Transport winds.....South 5 to 6 mph.
Smoke dispersal.....Poor (1800 knot-ft).
LVORI...............3.
ADI.................2 to 3.
Pcpn amount.........0.00 inches.
CEILING (KFT).......25.

TIME (EST)      6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........4   6   7   12  17  27  37  47  51  56  60  66
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............45  39  37  35  33  32  31  30  30  29  29  29
Dewpoint........20  19  18  17  17  17  17  17  16  15  14  14
RH..............36  44  45  48  52  54  56  57  56  54  53  53
20 FT wind dir..SW  S   S   S   SE  SE  N   N   N   N   N   N
20 FT wind spd..1   1   1   1   1   1   0   0   0   0   0   0
20 FT wind gust.6   5   5   5   3   3   3   3   3   2   2   2
Mix hgt (kft)...0.5 0.4 0.5 0.5 0.4 0.4 0.4 0.4 0.4 0.5 0.5 0.5
Transp wind dir.SW  S   S   S   S   S   S   S   S   S   S   S
Transp wind spd.6   6   6   6   6   6   6   6   6   5   5   5
LVORI...........2   2   2   2   2   2   3   3   3   2   2   2
ADI.............2   2   2   3   3   3   3   3   2   2   2   2
Vrate kt-ft/1K..2   2   2   2   2   2   2   2   2   2   2   2
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

.WEDNESDAY...

Sky/weather.........Partly sunny (65-75 percent).
CWR.................10 percent.
Chance of thunder...0 percent.
Max temperature.....Around 54.
Min humidity........37 percent.
Dewpoint............16 increasing to 31.
Wind (20 ft)........Light winds.
Mixing height.......1400 ft AGL.
Transport winds.....Southwest 3 to 6 mph.
Smoke dispersal.....Poor (1600 knot-ft).
LVORI...............2.
ADI.................4 to 12.
Pcpn amount.........0.00 inches.
CEILING (KFT).......25 in the morning.

TIME (EST)      6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........72  78  78  79  79  77  76  74  69  65  61  57
Weather cov.....
Weather type....
Tstm cov........
CWR.............0   0   0   0   0   0   0   10  10  10  10  10
Chc of thdr (%).0   0   0   0   0   0   0   0   0   0   0   0
Temp............29  30  32  36  40  44  48  51  53  54  54  52
Dewpoint........14  15  18  20  23  24  25  26  28  30  31  32
RH..............54  54  54  53  51  46  40  37  37  39  42  46
20 FT wind dir..N   N   N   N   SW  SW  W   W   W   SW  SW  SW
20 FT wind spd..0   0   0   0   1   1   2   2   2   2   1   1
20 FT wind gust.2   2   2   3   3   5   6   6   6   5   5   5
Mix hgt (kft)...0.4 0.4 0.4 0.4 0.5 0.8 1.2 1.4 1.4 1.2 0.9 0.8
Transp wind dir.S   S   S   SW  SW  SW  SW  W   W   SW  SW  SW
Transp wind spd.5   5   5   5   5   6   6   6   6   5   3   3
LVORI...........2   2   2   2   2   2   2   2   2   2   2   2
ADI.............5   5   4   4   5   5   9   12  10  7   5   4
Vrate kt-ft/1K..2   2   2   2   2   4   6   8   7   5   3   3
Ventrate Cat....PR  PR  PR  PR  PR  PR  PR  PR  PR  PR  PR  PR
Ceiling (kft)...25  25  25  25  25  25  25

$$
Forecaster...Lusk
Requested by...Drew Ford
Type of request...PRESCRIBED
.TAG 2527768.0/FFC
.DELDT 12/15/25
.FormatterVersion 2.0.0
.EMAIL drew.ford@usda.gov