Spot Forecast
Issued by NWS Atlanta, GA

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334
FNUS72 KFFC 151724
FWSFFC

Spot Forecast for 27B/27C...USWFS
National Weather Service Peachtree City GA
124 PM EDT Tue Sep 15 2026

Forecast is based on ignition time of 1000 EDT on September 16.
If conditions become unrepresentative...contact the National Weather
Service.

.DISCUSSION...

Update: Changed the winds to degrees.

Looks like a good day to burn tomorrow. Minimum RH values are
expected to fall into the low 40s and upper 30s during the
afternoon. Winds out of 080-1000 will be 5-10 mph with a few
gusts up to 15 mph before easing overnight and becoming light and
variable into Thursday morning.

Smoke dispersion should be good through the day as both heating
and wind will start the mixing early. Overnight temps in the 70s
will decrease the time needed to overcome the inversion. While
widespread fog is not expected on Thursday morning some low lying
areas and wetlands could see some morning fog aided by light and
variable winds.

Please let us know if you have additional questions or concerns
and we`ll take a look.

.WEDNESDAY...
TIME (EDT)      10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........53  48  38  27  30  27  24  21
Weather cov.....
Weather type....
Tstm cov........
Temp............76  80  83  86  88  89  89  90
Dewpoint........65  65  65  64  64  64  63  62
RH..............69  61  53  49  45  44  42  40
20 FT wind dir..090 090 090 090 090 090 080 090
20 FT wind spd..3   5   5   7   7   7   7   7
20 FT wind gust.8   9   10  12  13  13  13  13
Mix hgt (kft)...2.2 3.3 4.2 5.0 5.6 6.6 6.7 6.0
Transp wind dir.090 090 090 090 090 090 080 090
Transp wind spd.8   8   9   9   10  10  12  10
LVORI...........3   1   1   1   1   1   1   1
ADI.............22  33  46  54  62  77  82  67
Vrate kt-ft/1K..15  22  32  41  48  62  65  53
Ventrate Cat....PR  PR  PR  FR  FR  GD  GD  FR

.WEDNESDAY NIGHT...
TIME (EDT)      6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........12  11  9   11  13  7   3   1   1   4   7   9
Weather cov.....
Weather type....
Tstm cov........
Temp............88  86  82  76  74  73  71  69  68  66  65  64
Dewpoint........62  62  63  63  62  62  61  60  59  58  58  58
RH..............42  45  53  63  68  68  70  72  73  76  79  81
20 FT wind dir..090 090 090 090 090 090 090 090 090 090 030 030
20 FT wind spd..6   3   3   2   2   2   2   1   1   1   0   0
20 FT wind gust.12  10  9   8   8   8   7   6   5   5   3   2
Mix hgt (kft)...4.9 1.3 0.4 0.5 0.5 0.4 0.4 0.4 0.4 0.4 0.4 0.4
Transp wind dir.090 090 090 090 090 090 090 090 090 090 090 090
Transp wind spd.10  8   7   8   8   8   8   8   7   6   5   3
LVORI...........1   2   2   3   3   3   3   3   3   4   4   5
ADI.............61  4   3   4   4   4   3   3   3   3   2   2
Vrate kt-ft/1K..42  9   2   3   3   3   3   3   3   2   2   1
Ventrate Cat....FR  PR  PR  PR  PR  PR  PR  PR  PR  PR  PR  PR

.THURSDAY...
TIME (EDT)      6 AM   8 AM   10 AM  NOON   2 PM   4 PM
Sky (%).........16     28     27     6      5      3
Weather cov.....
Weather type....NONE   NONE   NONE   NONE   NONE   NONE
Tstm cov........
Temp............63     64     74     83     88     91
Dewpoint........58     59     62     62     61     60
RH..............85     85     65     49     40     35
20 ft wind......020    030    030    090    040    070
20 ft wind gust.2      5      5      8      10     10
Mix hgt (ft)....200    400    2300   4100   5000   5800
Transport wind..020    030    030    090    040    070
LVORI...........5      5      3      1      1      1
ADI.............2      5      21     43     58     64
Vrate kt-ft/1K..1      2      14     29     40     45
Ventrate Cat....POOR   POOR   POOR   POOR   FAIR   FAIR

$$
Forecaster...Vaughn
Requested by...Nathan Herron
Type of request...PRESCRIBED
.TAG 2621928.0/FFC
.DELDT 09/15/26
.FormatterVersion 2.0.0
.EMAIL nathanherron1615@gmail.com,nathan_herron@fws.gov