Spot Forecast
Issued by NWS Jackson, KY
Issued by NWS Jackson, KY
196
FNUS73 KJKL 291946
FWSJKL
Spot Forecast for Fern bluff RX...usfs
National Weather Service Jackson KY
346 PM EDT Thu Oct 29 2026
Forecast is based on ignition time of 1000 EDT on October 31.
If conditions become unrepresentative...contact the National Weather
Service.
Please contact our office if you have questions
or concerns with this forecast.
.DISCUSSION...A cold front will pass through from north to south
early on Friday. This will reinforce our relatively dry air
through the day on Saturday, with minimum afternoon relative
humidity likely dropping below 40 percent again on Saturday.
However, mid to high level cloud cover on Saturday is expected to
limit the heating, which would in turn limit the mixing height and
the dispersion/ventilation. The current forecast for Sunday also has
limited dispersion/ventilation, but it should be noted that there
has been a significant amount of variation in computer model
forecasts for Sunday, implying low confidence in the forecast.
.SATURDAY...
Sky/weather.........Mostly cloudy (75-85 percent).
Chance of pcpn......0 percent.
Chance of thunder...0 percent.
Temperature.........50 at ignition...Max 68.
RH..................74 percent at ignition...Min 39 percent.
Dewpoint............42.
Max apparent temp...68.
Wind (20 ft)........Winds east at 6 mph at ignition...otherwise
Light winds.
Ridgetop wind.......East 3 to 5 mph.
Mixing height.......400 ft AGL at ignition...maximum of
1300 ft AGL.
Transport winds.....Southeast 9 to 12 mph decreasing to 6 to 8 mph
late in the afternoon.
Vent Rate...........Poor (3200 knot-ft) at ignition. Max...poor
(8800 knot-ft).
LVORI...............3.
ADI.................8 to 13.
TIME (EDT) 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........74 82 84 86 88 89 89 90
Weather cov.....
Weather type....
Tstm cov........
Chc of pcpn (%).0 0 0 0 0 0 0 0
Chc of thdr (%).0 0 0 0 0 0 0 0
Temp............50 56 61 64 65 67 68 67
Dewpoint........42 43 42 42 41 41 42 43
RH..............74 62 50 45 41 39 39 42
Aparnt tmp (F)..48 56 61 64 65 67 68 67
20 FT wind dir..E E E E E E E E
20 FT wind spd..6 5 5 5 5 5 3 3
20 FT wind gust.8 9 10 10 10 10 9 8
Ridge wind dir..E E E E SE SE SE SE
Ridge wind spd..5 5 5 5 5 3 3 3
Mix hgt (kft)...0.4 0.6 0.8 1.0 1.3 1.3 1.3 1.1
Transp wind dir.E E SE SE S S SE SE
Transp wind spd.9 12 10 9 8 7 7 6
LVORI...........3 2 2 2 2 2 2 2
ADI.............10 12 11 12 13 12 12 8
Vrate kt-ft/1K..3 6 7 8 9 8 8 6
Ventrate Cat....PR PR PR PR PR PR PR PR
.SATURDAY NIGHT...
Sky/weather.........Cloudy (85-95 percent).
Chance of pcpn......0 percent.
Chance of thunder...0 percent.
Temperature.........Min 53.
RH..................Max 74 percent.
Dewpoint............44.
Max apparent temp...66.
Wind (20 ft)........Light winds.
Ridgetop wind.......Southeast 2 to 3 mph.
Mixing height.......100 ft AGL.
Transport winds.....Southeast 2 to 5 mph.
Vent Rate...........Poor (200 knot-ft).
LVORI...............3.
ADI.................1 to 5.
TIME (EDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........91 91 92 92 92 92 92 91 91 91 92 92
Weather cov.....
Weather type....
Tstm cov........
Chc of pcpn (%).0 0 0 0 0 0 0 0 0 0 0 0
Chc of thdr (%).0 0 0 0 0 0 0 0 0 0 0 0
Temp............66 65 63 61 59 57 56 56 55 55 54 54
Dewpoint........43 44 45 45 45 45 45 46 46 46 46 46
RH..............43 46 52 56 60 64 66 69 72 72 74 74
Aparnt tmp (F)..66 65 63 61 59 57 56 56 55 55 54 54
20 FT wind dir..E E E E E E SE SE SE SE SE SE
20 FT wind spd..3 2 2 2 2 2 2 1 1 1 1 1
20 FT wind gust.7 7 6 5 5 3 3 2 2 2 2 2
Ridge wind dir..E E E E E E SE SE SE SE SE SE
Ridge wind spd..3 3 3 2 2 2 2 2 2 2 2 2
Mix hgt (kft)...0.6 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1
Transp wind dir.SE E E E E SE SE SE SE SE SE SE
Transp wind spd.5 3 3 3 3 3 3 3 2 2 2 2
LVORI...........2 2 2 3 3 3 3 3 4 4 4 4
ADI.............5 2 2 2 2 2 2 2 1 1 1 1
Vrate kt-ft/1K..2 0 0 0 0 0 0 0 0 0 0 0
Ventrate Cat....PR PR PR PR PR PR PR PR PR PR PR PR
.SUNDAY...
Sky/weather.........Mostly cloudy (75-85 percent).
Chance of pcpn......10 percent.
Chance of thunder...1 percent.
Temperature.........Max 69.
RH..................Min 47 percent.
Dewpoint............46.
Max apparent temp...68.
Wind (20 ft)........Light winds.
Ridgetop wind.......South 2 to 3 mph.
Mixing height.......2600 ft AGL.
Transport winds.....South 2 to 9 mph.
Vent Rate...........Poor (100 knot-ft early, increasing to 13100
knot-ft in the afternoon).
LVORI...............3.
ADI.................1 to 27.
TIME (EDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........91 89 88 84 80 76 80 83 87 82 78 73
Weather cov.....
Weather type....
Tstm cov........
Chc of pcpn (%).0 0 10 10 10 10 10 10 10 10 10 10
Chc of thdr (%).0 0 0 0 0 0 0 0 0 0 0 0
Temp............54 53 53 56 58 60 62 64 66 67 67 68
Dewpoint........46 45 45 46 47 48 48 48 48 48 47 47
RH..............74 74 74 69 67 64 60 56 52 50 49 47
Aparnt tmp (F)..54 53 53 56 58 60 62 64 66 67 67 68
20 FT wind dir..SE SE SE SE SE S S S S S S S
20 FT wind spd..1 1 1 1 1 1 1 2 2 2 2 2
20 FT wind gust.2 2 2 3 3 5 5 6 6 6 6 6
Ridge wind dir..SE SE SE SE SE S S S S S S S
Ridge wind spd..2 2 2 2 2 2 2 3 3 3 3 3
Mix hgt (kft)...0.1 0.1 0.1 0.2 0.4 0.5 1.2 1.9 2.6 2.6 2.6 2.6
Transp wind dir.SE SE S SE SE SE S S S S S S
Transp wind spd.2 2 2 5 6 8 8 9 9 8 7 6
LVORI...........4 3 3 3 3 3 2 2 2 2 2 2
ADI.............1 2 2 5 6 6 13 22 27 24 20 17
Vrate kt-ft/1K..0 0 0 1 2 4 9 16 21 19 16 13
Ventrate Cat....PR PR PR PR PR PR PR PR PR PR PR PR
$$
Forecaster...HAL
Requested by...Seth Thompson
Type of request...PRESCRIBED
.TAG 2624680.1/JKL
.DELDT 10/29/26
.FormatterVersion 2.0.0
.EMAIL conrad.mccloskey@usda.gov,seth.thompson2@usda.gov,brian.sayles@usda.gov,casey.lovell@usda.gov