889
FNUS72 KFFC 061041
FWSFFC

Spot Forecast for Compartment 162 North...US Forest Service
National Weather Service Peachtree City GA
541 AM EST Fri Mar 6 2026

Forecast is based on ignition time of 0601 EST on March 06.
If conditions become unrepresentative...contact the National Weather
Service.

.DISCUSSION...

Good morning Amy,

I updated the Spot to include ADI values in the matrix below.

A humid start to the day is expected on Friday, with RH values
around 95 percent at ignition time at 9:30 AM. With nearly
saturated conditions and nearly calm winds, patchy fog could be
lingering at the burn site at ignition. Any remaining fog should
dissipate between 10 and 11 AM as RH drops under 90 percent. With
dewpoints in the 60s and highs rising to around 83 degrees, RH
values will drop to about 70 percent by noon and down to a minimum
of 57 percent in the mid-afternoon. 20 ft winds will remain
fairly light, from S at 3 mph or less, though occasional gusts up
to 7-10 mph may be possible in the late morning through mid-
afternoon. Transport winds will similarly be S at 6-7 mph at
ignition and increase to 7-9 mph in the late morning and
afternoon. Low clouds below 500 ft at ignition time will lift to
2000-3000 ft 11 AM and up to 4000-5000 ft by the afternoon, with
mostly cloudy skies becoming more scattered after 3 PM. Mixing
heights peaking between 2000-3000 ft and the aforementioned
transport winds will lead to ADI between 20-30 through most of the
afternoon.

Scattered pop-up showers and thunderstorms are also anticipated
during the afternoon and tomorrow night, with rain chances forecast
to be about 20 percent in the afternoon and 30 percent after sunset.
Thunderstorms will follow a "summer-like" convective pattern
throughout this time. Rainfall amounts are forecast to be less than
0.25 inch at this time, though amounts could be higher if a stronger
storm moves over the burn site. 20 ft winds will remain light
tomorrow night, shifting to SE at 2 mph or less. Transport winds
will be S/SE overnight and remain between 6-9 mph. Light winds and
RH values approaching 100 percent again will lead to the likelihood
of fog at the burn site during the early morning hours on Saturday.

.REST OF TODAY...

Sky/weather.........Partly sunny (45-55 percent). Patchy fog early
                    in the morning. Slight chance of showers and
                    thunderstorms late in the afternoon.
CWR.................10 percent increasing to 20 percent late in the
                    afternoon.
Chance of thunder...20 percent.
Max temperature.....Around 83.
Min humidity........57 percent.
Wind (20 ft)........Light winds. Gusty and erratic winds expected
                    near thunderstorms late in the afternoon.
Mixing height.......3500 ft AGL.
Transport winds.....South 7 to 9 mph.
Smoke dispersal.....Poor (2900 knot-ft) early in the morning
                    increasing to fair (25400 knot-ft) in the
                    afternoon.
ADI.................6 to 35.

TIME (EST)      6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........58  61  64  61  60  54  56  60  57  50  38  37
Weather cov.....PTY                                     SCH SCH
Weather type....FOG                                     RW  RW
Tstm cov........                                        SCH SCH
CWR.............0   0   10  10  10  10  10  10  10  10  20  20
Chc of thdr (%).0   0   10  10  10  10  10  10  10  10  20  20
Temp............61  61  61  65  69  73  77  80  81  82  82  81
RH..............100 99  100 100 90  79  70  63  60  57  58  58
20 FT wind dir..N   N   N   N   S   S   S   S   S   S   S   SE
20 FT wind spd..0   0   0   0   1   1   2   2   2   1   1   1
20 FT wind gust.                    2   5   5   5   2   2
Mix hgt (kft)...0.4 0.5 0.5 1.0 1.3 1.7 2.2 2.9 3.3 3.5 3.0 2.2
Transp wind dir.S   S   S   S   S   S   S   S   S   S   S   S
Transp wind spd.7   8   7   9   8   9   8   9   9   8   8   8
ADI.............6   6   6   11  14  19  21  27  30  35  32  24
Vrate kt-ft/1K..3   3   3   8   10  13  15  22  25  25  22  16
Ventrate Cat....PR  PR  PR  PR  PR  PR  PR  PR  PR  PR  PR  PR

.TONIGHT...

Sky/weather.........Partly cloudy (40-50 percent) then becoming
                    mostly cloudy (55-65 percent). Slight chance of
                    thunderstorms early in the evening. Slight
                    chance of showers in the evening and overnight.
CWR.................20 percent decreasing to 10 percent after 3 am.
Chance of thunder...24 percent.
Min temperature.....Around 61.
Max humidity........100 percent.
Wind (20 ft)........Light winds. Gusty and erratic winds expected
                    near thunderstorms early in the evening.
Mixing height.......400 ft AGL.
Transport winds.....South 6 to 10 mph.
Smoke dispersal.....Poor (2500 knot-ft).
ADI.................3 to 5.

TIME (EST)      6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........42  44  52  59  63  68  66  67  67  71  60  61
Weather cov.....SCH SCH SCH SCH SCH SCH SCH SCH SCH
Weather type....RW  RW  RW  RW  RW  RW  RW  RW  RW
Tstm cov........SCH SCH SCH SCH
CWR.............20  20  20  20  20  20  20  20  20  10  10  10
Chc of thdr (%).20  20  20  20  10  10  10  10  10  10  10  10
Temp............78  73  70  69  67  66  66  65  64  64  63  63
RH..............65  74  84  87  90  93  95  97  100 100 100 100
20 FT wind dir..N   N   N   N   N   N   SE  SE  SE  SE  S   S
20 FT wind spd..0   0   0   0   0   0   1   1   1   1   1   1
20 FT wind gust.
Mix hgt (kft)...0.6 0.5 0.5 0.5 0.5 0.4 0.4 0.4 0.4 0.5 0.5 0.5
Transp wind dir.SE  SE  S   SE  SE  S   SE  S   S   S   S   S
Transp wind spd.8   6   8   7   8   7   8   8   9   9   10  10
ADI.............4   3   4   3   4   3   3   4   4   4   4   5
Vrate kt-ft/1K..4   3   3   3   3   3   3   3   3   4   5   5
Ventrate Cat....PR  PR  PR  PR  PR  PR  PR  PR  PR  PR  PR  PR

.SATURDAY...

Sky/weather.........Mostly sunny (45-55 percent). Slight chance of
                    thunderstorms early in the afternoon. Chance of
                    showers in the afternoon. Chance of
                    thunderstorms late in the afternoon.
CWR.................10 percent increasing to 30 percent in the
                    afternoon.
Chance of thunder...25 percent.
Max temperature.....Around 82.
Min humidity........57 percent.
Wind (20 ft)........Light winds becoming south around 5 mph early
                    in the afternoon, then becoming light late in
                    the afternoon. Gusty and erratic winds expected
                    near thunderstorms early in the afternoon.
                    Gusty and erratic winds expected near
                    thunderstorms late in the afternoon.
Mixing height.......3800 ft AGL.
Transport winds.....South 9 to 13 mph.
Smoke dispersal.....Poor (4500 knot-ft) early in the morning
                    increasing to good (42100 knot-ft) in the
                    afternoon.
ADI.................8 early in the morning increasing to 58 in the
                    afternoon.

TIME (EST)      6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........62  70  63  58  54  48  42  36  33  30  26  29
Weather cov.....                            CHC CHC CHC CHC CHC
Weather type....                            RW  RW  RW  RW  RW
Tstm cov........                            SCH SCH SCH CHC CHC
CWR.............0   10  10  10  10  10  10  30  30  30  30  30
Chc of thdr (%).0   10  10  10  10  10  10  20  20  20  30  30
Temp............63  62  63  66  69  73  76  78  80  82  82  80
RH..............100 100 100 97  90  82  74  67  62  58  57  58
20 FT wind dir..S   S   S   S   S   S   S   S   S   S   S   S
20 FT wind spd..1   1   1   1   2   3   3   5   5   3   3   2
20 FT wind gust.            2   5   6   7   7   7   7   6   5
Mix hgt (kft)...0.5 0.6 0.7 1.2 1.7 2.2 2.6 2.9 3.5 3.8 3.8 2.8
Transp wind dir.S   S   S   S   S   S   S   S   S   S   S   S
Transp wind spd.10  9   10  12  13  13  13  13  13  13  13  12
ADI.............8   9   10  17  28  35  40  44  52  58  57  41
Vrate kt-ft/1K..5   5   7   12  19  24  28  31  37  42  41  28
Ventrate Cat....PR  PR  PR  PR  PR  PR  PR  PR  PR  FR  FR  PR

$$
Forecaster...Vaughn
Requested by...Amy Galetka
Type of request...PRESCRIBED
.TAG 2604904.1/FFC
.DELDT 03/06/26
.FormatterVersion 2.0.0
.EMAIL Stephanie.israel@usda.gov,timothy.kolnik@usda.gov,amy.galetka@usda.gov