Spot Forecast
Issued by NWS Atlanta, GA
Issued by NWS Atlanta, GA
974
FNUS72 KFFC 050930
FWSFFC
Spot Forecast for 12A/13E/13w...USFWS
National Weather Service Peachtree City GA
530 AM EDT Sat Apr 5 2025
Forecast is based on ignition time of 1100 EDT on April 05.
If conditions become unrepresentative...contact the National Weather
Service.
.DISCUSSION...
Good morning, Nathan. Another warm day is expected across central
Georgia today, with high temperatures at the burn site forecast to
rise into the upper 80s. With temperatures quickly warming this
morning, any patchy fog should dissipate by ignition time at 11 AM.
20 ft winds at the burn site will be S at 5-7 mph throughout the
day, with occasional gusts of 15-18 mph during the afternoon. The
southerly flow will ensure that RH values do not fall too far below
forecast. Relative humidity values will be around 70 percent at
ignition time, dropping to a minimum of 45 percent in the mid to
late afternoon. Transport winds will be S at 15 mph at ignition
time, shifting to SW at 17-20 mph after 1 PM and through much of the
afternoon. These transport winds combined with mixing heights up to
6000 ft will allow for good dispersion throughout the day.
20 ft winds will remain S overnight, diminishing to 3-5 mph. With
light winds and RH values reaching up to 94 percent, patchy fog in
low lying areas and along stream beds cannot be ruled out in the
early morning hours around sunrise. At this time, no visibility
restrictions are forecast. Like today, the quickly warming
temperatures and increasing winds will quickly dissipate any fog
within an hour or two of sunrise. An approaching cold front will
bring showers and thunderstorms to the burn site after 2 PM on
Sunday. A few storms could become strong to severe, and capable of
producing damaging wind gusts which could cause tree damage. Please
feel free to contact us if you have any further questions or
concerns.
.REST OF TODAY...
Sky/weather.........Mostly sunny (45-55 percent).
CWR.................0 percent.
Max temperature.....Around 88.
Min humidity........45 percent.
Dewpoint............66 decreasing to 63 late in the afternoon.
Wind (20 ft)........South winds 5 to 7 mph.
Mixing height.......6000 ft AGL.
Transport winds.....Southwest 15 to 20 mph.
Smoke dispersal.....Good (35900 knot-ft) early in the morning
increasing to excellent (90000 knot-ft) in the
afternoon.
LVORI...............2.
ADI.................54 early in the morning increasing to 120 in
the afternoon.
Pcpn amount.........0.00 inches.
TIME (EDT) 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........39 55 55 53 57 58 50
Weather cov.....
Weather type....
Tstm cov........
CWR.............0 0 0 0 0 0 0
Temp............78 81 85 86 87 88 87
Dewpoint........68 67 66 65 63 63 63
RH..............71 61 54 50 45 45 45
20 FT wind dir..S S S S S S S
20 FT wind spd..5 5 6 6 7 7 6
20 FT wind gust.13 15 16 17 17 17 18
Mix hgt (kft)...2.8 3.6 5.2 6.0 5.9 5.6 5.5
Transp wind dir.S S SW SW SW SW S
Transp wind spd.15 16 17 17 18 20 18
LVORI...........3 1 1 1 1 1 1
ADI.............54 76 109 113 120 120 117
Vrate kt-ft/1K..36 49 77 90 89 88 87
Ventrate Cat....PR FR GD GD GD GD GD
.TONIGHT...
Sky/weather.........Partly cloudy (30-40 percent).
CWR.................0 percent.
Min temperature.....Around 65.
Max humidity........94 percent.
Dewpoint............62.
Wind (20 ft)........South winds 5 to 6 mph in the evening becoming
light.
Mixing height.......200 ft AGL.
Transport winds.....South 5 to 14 mph decreasing to 3 to 6 mph in
the late evening and overnight.
Smoke dispersal.....Excellent (65200 knot-ft) early in the evening
decreasing to poor (700 knot-ft) late in the
night.
LVORI...............4.
ADI.................52 early in the evening decreasing to 2 late in
the night.
Pcpn amount.........0.00 inches.
TIME (EDT) 6 PM 8 PM 10 PM MIDNGT 2 AM 4 AM
Sky (%).........43 38 28 37 37 41
Weather cov.....
Weather type....NONE NONE NONE NONE NONE NONE
Tstm cov........
CWR.............0 0 0 0 0 0
Temp............86 80 75 72 69 67
Dewpoint........62 63 62 61 62 62
RH..............45 55 63 69 77 85
20 ft wind......S 6 S 5 S 5 S 5 S 3 S 3
20 ft wind gust.17 14 15 15 14 14
Mix hgt (ft)....2800 200 200 200 200 200
Transport wind..S 14 S 5 S 5 S 5 S 5 S 5
LVORI...........1 2 3 3 4 5
ADI.............52 2 2 2 2 2
Vrate kt-ft/1K..65 1 1 1 1 1
Ventrate Cat....GOOD POOR POOR POOR POOR POOR
.SUNDAY...
Sky/weather.........Partly sunny (60-70 percent). Showers likely
late in the afternoon. Slight chance of
thunderstorms late in the afternoon.
CWR.................0 percent increasing to 60 percent late in the
afternoon.
Max temperature.....Around 85.
Min humidity........46 percent.
Dewpoint............63.
Wind (20 ft)........Light winds becoming south 5 to 9 mph with
gusts to around 24 mph. Gusty and erratic winds
expected near thunderstorms late in the
afternoon.
Mixing height.......5100 ft AGL.
Transport winds.....South 3 to 6 mph increasing to southwest 23 to
29 mph.
Smoke dispersal.....Poor (700 knot-ft) early in the morning
increasing to excellent (94200 knot-ft) in the
afternoon increasing to excellent (99300
knot-ft) late in the afternoon.
LVORI...............4.
ADI.................2 early in the morning increasing to 103 in the
afternoon.
Pcpn amount.........0.27 inches.
TIME (EDT) 6 AM 8 AM 10 AM NOON 2 PM 4 PM
Sky (%).........57 74 49 55 58 72
Weather cov..... LIKELY LIKELY
Weather type....NONE NONE NONE NONE RNSHWR RNSHWR
Tstm cov........
CWR.............0 0 0 0 60 60
Temp............66 65 72 80 84 84
Dewpoint........63 63 65 63 62 62
RH..............91 94 79 56 47 47
20 ft wind......S 3 S 5 S 6 S 8 S 9 S 9
20 ft wind gust.14 15 20 22 23 24
Mix hgt (ft)....200 200 2100 3300 5100 4600
Transport wind..S 3 S 6 SW 22 SW 29 SW 23 S 26
LVORI...........6 6 3 1 1 1
ADI.............2 4 60 103 94 96
Vrate kt-ft/1K..1 1 52 77 103 100
Ventrate Cat....POOR POOR FAIR GOOD VYGD VYGD
$$
Forecaster...King
Requested by...Nathan Herron
Type of request...PRESCRIBED
.TAG 2508863.0/FFC
.DELDT 04/05/25
.FormatterVersion 2.0.0
.EMAIL carl_schmidt@fws.gov,nathan_herron@fws.gov