Suppression Forecast
Issued by NWS Atlanta, GA

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FNUS72 KFFC 161318
FWSFFC

Spot Forecast for 15C-R1...US Fish & Wildlife Service
National Weather Service Peachtree City GA
818 AM EST Tue Jan 16 2018

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

.DISCUSSION...

A strong cold front will move through much of Georgia today. This
frontal boundary will bring chances of precipitation to the state
starting this afternoon, with wintry precipitation expected.

Light south winds early this morning will turn more westerly just
ahead of the cold front late this afternoon. The frontal
passage and northwest wind shift should occur sometime during the
early evening, between 7pm and 9pm. Sustained winds today will average
between 5mph and 10 mph, but increase behind the front to 10mph to
15mph with some gusts to around 20mph overnight. The chances of
precipitation are low today and this evening. Very little precipitation
is expected overall, and should only average a couple of hundredths of
liquid during the evening. A very light dusting to a trace of snow
is possible overnight.

Sustained NW winds between 10mph and 20mph are expected tomorrow with
frequent gusts to around 25mph. Wind chills during the day on Wednesday
will average from the middle teens to lower 20s.

Min RH values today should be around 40 percent. For Wednesday, values
may dip to around 25 percent.

.REST OF TODAY...

Sky/weather.........Mostly sunny (40-50 percent), then becoming
                    mostly cloudy (75-85 percent).
CWR.................0 percent.
LAL.................No Tstms.
Max temperature.....Around 54.
Min humidity........41 percent.
Wind (20 ft)........Light winds, becoming southwest around 5 mph
                    late in the morning.
Mixing height.......1000-2900 ft AGL, increasing to 3600-4800 ft
                    AGL in the afternoon, then decreasing to 200 ft
                    AGL late.
Transport winds.....Southwest 7 to 16 mph.
Smoke dispersal.....Poor to good (5300-53300 knot-ft), increasing
                    to good to excellent (48900-67400 knot-ft)
                    late.
LVORI...............2.
ADI.................8, increasing to 18 late in the morning, then
                    increasing to 39 early in the afternoon,
                    increasing to 55 early in the afternoon,
                    increasing to 68, increasing to 84 late,
                    decreasing to 12.
Haines Index........4 to 5 OR or low potential for large plume
                    dominated fire growth to or moderate potential
                    for large plume dominated fire growth.
Pcpn amount.........0.00 inches.

TIME (EST)      10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........16  22  36  43  52  69  78  82
Weather cov.....
Weather type....
Tstm cov........
CWR.............0   0   0   0   0   0   0   0
LAL.............1   1   1   1   1   1   1   1
Temp............40  44  48  51  52  53  52  50
RH..............59  51  45  42  41  41  43  47
20 FT wind dir..S   S   S   SW  SW  SW  SW  SW
20 FT wind spd..3   5   5   5   5   5   5   5
20 FT wind gust.5   6   6   6   7   7   7   6
Mix hgt (kft)...1.0 1.6 2.9 3.6 3.9 4.5 4.8 0.2
Transp wind dir.S   S   SW  SW  SW  SW  SW  SW
Transp wind spd.7   8   10  13  15  16  16  13
LVORI...........2   2   1   1   1   1   1   2
ADI.............8   18  39  55  68  82  85  12
Haines index....4   4   4   5   5   5   4   4
VRate kt-ft/10005   14  26  38  53  65  67  49

.TONIGHT...

Sky/weather.........Cloudy (90-100 percent). A chance of light rain
                    in the evening. A chance of light snow.
CWR.................10 percent, increasing to 20 percent in the
                    evening, then increasing to 30 percent in the
                    evening, increasing to 40 percent, increasing
                    to 50 percent, decreasing to 40 percent.
LAL.................No Tstms.
Min temperature.....Around 23.
Max humidity........76 percent.
Wind (20 ft)........West winds around 5 mph early in the evening,
                    becoming light, then becoming northwest 6 to 9
                    mph early in the evening.
Mixing height.......200-500 ft AGL.
Transport winds.....West 5 to 13 mph, becoming northwest 14 to 16
                    mph in the late evening and overnight.
Smoke dispersal.....Poor to fair (0-22500 knot-ft).
LVORI...............3.
ADI.................8, increasing to 13 late in the evening.
Haines Index........2 to 4 OR or very low potential for large plume
                    dominated fire growth to or low potential for
                    large plume dominated fire growth.
Pcpn amount.........0.02 inches.

TIME (EST)      6 PM   8 PM   10 PM  MIDNGT 2 AM   4 AM
Sky (%).........90     94     94     98     99     97
Weather cov.....              S CHC  CHANCE CHANCE CHANCE
Weather type....NONE   NONE   RNSN   SNOW   SNOW   SNOW
Tstm cov........
CWR.............10     10     20     30     50     40
LAL.............1      1      1      1      1      1
Temp............48     42     38     35     31     28
RH..............52     64     75     76     73     69
20 ft wind......W 5    W 6    NW 8   NW 9   NW 9   NW 9
20 ft wind gust.6      8      11     12     13     13
Mix hgt (ft)....200    200    300    400    400    500
Transport wind..W 7    W 7    NW 16  NW 15  NW 14  NW 16
LVORI...........2      3      4      4      3      3
ADI.............5      4      12     13     13     14
Haines index....4      4      2      2      2      2
VRate kt-ft/100023     0      5      5      5      7

.WEDNESDAY...

Sky/weather.........Partly sunny (55-65 percent), then becoming
                    sunny (10-20 percent). A chance of light snow
                    early in the morning, then a slight chance of
                    light snow early in the morning.
CWR.................30 percent, decreasing to 10 percent.
LAL.................No Tstms.
Max temperature.....Around 33.
Min humidity........30 percent.
Wind (20 ft)........Northwest winds 10 to 14 mph. Gusts up to 24
                    mph early in the morning.
Mixing height.......500-2200 ft AGL, increasing to 2700-3700 ft AGL
                    in the afternoon, then decreasing to 1000 ft
                    AGL late.
Transport winds.....Northwest 16 to 23 mph, increasing to 26 to 28
                    mph in the late morning and afternoon.
Smoke dispersal.....Poor to good (4800-45100 knot-ft), increasing
                    to good to excellent (43000-71600 knot-ft) late
                    in the morning.
LVORI...............2.
ADI.................16, increasing to 66 in the late morning and
                    afternoon, then decreasing to 34 late.
Haines Index........2 to 4 OR or very low potential for large plume
                    dominated fire growth to or low potential for
                    large plume dominated fire growth.
Pcpn amount.........0.01 inches.

$$
Forecaster...NListemaa
Requested by...John Mason
Type of request...PRESCRIBED
.TAG 1800412.0/FFC


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