Spot Forecast
Issued by NWS Atlanta, GA
Issued by NWS Atlanta, GA
213
FNUS72 KFFC 220851
FWSFFC
Spot Forecast for Juniper N 12...The Nature Conservancy
National Weather Service Peachtree City GA
451 AM EDT Wed May 22 2024
Forecast is based on ignition time of 0900 EDT on May 22.
If conditions become unrepresentative...contact the National Weather
Service.
.DISCUSSION...
Good morning, Mike. Benign weather conditions are expected at the
burn site today due to the influence of surface high pressure
centered to the east of Georgia. Temperatures at the burn site will
be in the 80s through the afternoon, up to a high of 87 degrees.
Some passing upper level clouds will be present this morning, with
scattered clouds between 3000-5000 ft developing late this morning
into the afternoon. Relative humidity values at ignition time will
be just over 80 percent, and drop to below 60 percent by noon as
temperatures rise. Minimum RH values will drop to a minimum to 45
percent around 4-5 PM this afternoon. 20 ft winds will be from S at
2 mph at ignition time, increasing to 3 mph by 11 AM and to 5 mph by
1 PM and through much of the afternoon. Transport winds will be SE
at 3 mph at ignition time, becoming S at 5-6 mph by 11 AM and S at 7
mph by 3 PM. 20 ft winds and transport winds will diminish to S at 3
mph or less after 8 PM and into the overnight hours.
LVORI values at the burn site will steadily through the overnight
hours, increasing to as high as 6 between 5 AM and 8 AM on Thursday
morning. With RH values mainly staying under 90 percent, the
development of fog at the burn site overnight appears to be unlikely
at this time. Please feel free to contact us if you have any further
questions or concerns.
.REST OF TODAY...
Sky/weather.........Mostly sunny (35-45 percent).
CWR.................0 percent.
LAL.................1.
Max temperature.....Around 87.
Min humidity........45 percent.
Dewpoint............64.
Wind (20 ft)........Light winds becoming south around 5 mph in the
afternoon.
Mixing height.......5600 ft AGL.
Transport winds.....South 3 to 7 mph.
Smoke dispersal.....Poor (3700 knot-ft) early in the morning
increasing to good (32700 knot-ft) in the
afternoon.
LVORI...............3.
ADI.................4 early in the morning increasing to 47 in the
afternoon.
Haines Index........4 or low potential for large plume dominated
fire growth.
Pcpn amount.........0.00 inches.
CEILING (KFT).......25 decreasing to 20 late in the morning, then
decreasing to 3.0 late in the morning
increasing to 4.0 early in the afternoon
increasing to 5.0.
TIME (EDT) 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........45 30 34 48 48 40 42 38 28
Weather cov.....
Weather type....
Tstm cov........
CWR.............0 0 0 0 0 0 0 0 0
LAL.............1 1 1 1 1 1 1 1 1
Temp............72 75 78 81 83 84 85 86 86
Dewpoint........66 66 66 65 64 63 62 62 62
RH..............82 74 67 57 52 50 46 45 45
20 FT wind dir..S S S S S S S S S
20 FT wind spd..2 2 3 3 5 5 5 5 5
20 FT wind gust.5 5 7 7 8 9 9 8 8
Mix hgt (kft)...1.0 2.7 3.5 3.9 4.8 5.2 5.3 5.5 5.6
Transp wind dir.SE S S S S S S S S
Transp wind spd.3 3 5 5 6 6 7 7 7
LVORI...........5 3 3 2 1 1 1 1 1
ADI.............4 13 20 25 33 39 43 47 46
Haines index....4 4 4 4 4 4 4 4 4
Vrate kt-ft/1K..4 10 13 17 24 27 29 31 33
Ventrate Cat....PR PR PR PR PR PR PR PR PR
Ceiling (kft)...25 20 3.0 3.5 4.0 5.0 5.0 5.0 5.0
.TONIGHT...
Sky/weather.........Partly cloudy (20-30 percent) then becoming
mostly cloudy (50-60 percent).
CWR.................0 percent.
LAL.................1.
Min temperature.....Around 68.
Max humidity........90 percent.
Dewpoint............63.
Wind (20 ft)........Light winds.
Mixing height.......200 ft AGL.
Transport winds.....South 2 to 6 mph.
Smoke dispersal.....Fair (24600 knot-ft) early in the evening
decreasing to poor (500 knot-ft) late in the
night.
LVORI...............4.
ADI.................1 to 30.
Haines Index........4 or low potential for large plume dominated
fire growth.
Pcpn amount.........0.00 inches.
CEILING (KFT).......5.0 increasing to 25 in the late evening and
overnight.
TIME (EDT) 6 PM 8 PM 10 PM MIDNGT 2 AM 4 AM
Sky (%).........29 25 22 39 37 41
Weather cov.....
Weather type....NONE NONE NONE NONE NONE NONE
Tstm cov........
CWR.............0 0 0 0 0 0
LAL.............1 1 1 1 1 1
Temp............86 82 76 73 71 69
Dewpoint........62 65 65 65 64 65
RH..............45 57 70 77 80 86
20 ft wind......S 3 S 2 S 1 S 1 S 1 SW 1
20 ft wind gust.7 5 3 3 3 3
Mix hgt (ft)....4300 200 200 200 200 200
Transport wind..S 6 S 3 S 2 S 2 S 2 S 2
LVORI...........1 3 3 4 5 5
ADI.............30 1 1 1 1 1
Haines index....4 4 4 4 4 4
Vrate kt-ft/1K..25 1 1 1 1 1
Ventrate Cat....POOR POOR POOR POOR POOR POOR
Ceiling (kft)...5.0 5.0 25 25 25 25
.THURSDAY...
Sky/weather.........Mostly sunny (40-50 percent).
CWR.................0 percent.
LAL.................1.
Max temperature.....Around 89.
Min humidity........45 percent.
Dewpoint............65.
Wind (20 ft)........Light winds becoming southwest 5 to 8 mph in
the late morning and afternoon.
Mixing height.......5200 ft AGL.
Transport winds.....South 2 to 9 mph shifting to the southwest 12
to 14 mph late in the morning.
Smoke dispersal.....Poor (500 knot-ft) early in the morning
increasing to good (59000 knot-ft) in the
afternoon.
LVORI...............4.
ADI.................1 early in the morning increasing to 80 in the
afternoon.
Haines Index........3 to 4 or very low to low potential for large
plume dominated fire growth.
Pcpn amount.........0.00 inches.
CEILING (KFT).......25 decreasing to 3.5 late in the morning, then
increasing to 5.0 early in the afternoon
increasing to 6.0 late in the afternoon.
TIME (EDT) 6 AM 8 AM 10 AM NOON 2 PM 4 PM
Sky (%).........58 40 47 48 43 37
Weather cov.....
Weather type....NONE NONE NONE NONE NONE NONE
Tstm cov........
CWR.............0 0 0 0 0 0
LAL.............1 1 1 1 1 1
Temp............68 71 78 84 86 88
Dewpoint........65 67 67 66 65 64
RH..............88 87 68 56 49 45
20 ft wind......S 1 S 2 S 5 S 6 SW 7 SW 7
20 ft wind gust.3 3 7 10 13 13
Mix hgt (ft)....200 200 2700 3900 5200 5100
Transport wind..S 2 S 2 S 9 S 13 SW 12 SW 14
LVORI...........6 6 3 1 1 1
ADI.............1 3 31 60 71 80
Haines index....4 3 3 4 4 4
Vrate kt-ft/1K..1 1 27 40 54 58
Ventrate Cat....POOR POOR POOR FAIR FAIR FAIR
Ceiling (kft)...25 25 25 4.0 5.0 6.0
$$
Forecaster...King
Requested by...Mike Thompson
Type of request...PRESCRIBED
.TAG 2414843.0/FFC
.DELDT 05/22/24
.FormatterVersion 2.0.0
.EMAIL michael.thompson@tnc.org