808
FNUS73 KJKL 201018
FWSJKL
SPOT FORECAST FOR ALUM FIRE...USFS
NATIONAL WEATHER SERVICE JACKSON KY
618 AM EDT MON APR 20 2026
FORECAST IS BASED ON FORECAST START TIME OF 0600 EDT ON APRIL 20.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.
PLEASE CONTACT OUR OFFICE IF YOU HAVE QUESTIONS
OR CONCERNS WITH THIS FORECAST.
..LOW MINIMUM RELATIVE HUMIDITY TODAY AND TUESDAY
DISCUSSION
A COLD FRONT WITH A REINFORCING PUSH OF
COOLER AIR WILL MOVE THROUGH THIS MORNING, BUT IT WILL ONLY
BRING A PERIOD OF CLOUDS. HEATING OF THE COOL AND DRY AIR MASS
WILL RESULT IN MINIMUM RELATIVE HUMIDITY OF 25-30% FOR THE NEXT
COUPLE OF DAYS. RAIN IS NOT EXPECTED UNTIL WE MOVE INTO THE
WEEKEND.
TODAY
SKY/WEATHER.........MOSTLY SUNNY (30-40 PERCENT).
CHANCE OF PCPN......10 PERCENT.
MAX TEMPERATURE.....AROUND 65.
MIN HUMIDITY........29 PERCENT.
WIND (20 FT)........LIGHT WINDS BECOMING NORTHWEST AROUND 5 MPH IN
THE AFTERNOON.
RIDGETOP WIND.......NORTH 2 TO 6 MPH.
MIXING HEIGHT.......5400 FT AGL.
TRANSPORT WINDS.....WEST 3 TO 8 MPH SHIFTING TO THE NORTHEAST EARLY
IN THE MORNING, THEN SHIFTING TO THE NORTHWEST
9 TO 16 MPH IN THE AFTERNOON.
VENT RATE...........POOR (100 KNOT-FT) INCREASING TO GOOD (72000
KNOT-FT).
LVORI...............3.
ADI.................3 EARLY IN THE MORNING INCREASING TO 108 IN THE
AFTERNOON.
TIME (EDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........5 10 14 31 47 64 43 21 2 1 2 4
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CHC OF PCPN (%).0 0 10 10 10 10 0 0 0 0 0 0
TEMP............39 38 39 45 49 54 58 60 61 64 65 65
RH..............79 82 85 68 58 48 42 39 38 34 31 31
20 FT WIND DIR..N N N N N N NW NW NW NW NW NW
20 FT WIND SPD..1 1 1 1 3 3 5 6 6 6 6 6
20 FT WIND GUST.3 3 3 5 7 8 10 12 13 13 12 12
RIDGE WIND DIR..N N N N N N NW NW NW NW NW NW
RIDGE WIND SPD..2 2 2 2 5 5 5 6 6 6 6 6
MIX HGT (KFT)...0.1 0.1 0.1 0.5 1.3 1.7 2.4 3.7 4.3 4.6 5.1 5.4
TRANSP WIND DIR.SW W NE NE N N NW NW NW NW NW NW
TRANSP WIND SPD.8 3 3 5 7 8 9 12 13 15 16 16
LVORI...........5 5 5 3 2 2 2 1 1 1 1 1
ADI.............4 3 3 4 11 18 28 54 69 86 103 108
VRATE KT-FT/1K..0 0 0 2 8 12 19 37 47 59 72 76
VENTRATE CAT....PR PR PR PR PR PR PR PR FR FR GD GD
TONIGHT
SKY/WEATHER.........CLEAR (0-5 PERCENT).
CHANCE OF PCPN......0 PERCENT.
MIN TEMPERATURE.....AROUND 40.
MAX HUMIDITY........79 PERCENT.
WIND (20 FT)........NORTHWEST WINDS AROUND 5 MPH EARLY IN THE
EVENING BECOMING LIGHT.
RIDGETOP WIND.......NORTH 3 TO 6 MPH SHIFTING TO THE SOUTHEAST
AROUND 3 MPH OVERNIGHT.
MIXING HEIGHT.......100 FT AGL.
TRANSPORT WINDS.....NORTHWEST 9 TO 15 MPH SHIFTING TO THE NORTH
AROUND 3 MPH EARLY IN THE EVENING, THEN
SHIFTING TO THE EAST LATE IN THE EVENING
SHIFTING TO THE SOUTHEAST 3 TO 5 MPH OVERNIGHT.
VENT RATE...........GOOD (55100 KNOT-FT) DECREASING TO POOR (200
KNOT-FT).
LVORI...............3.
ADI.................80 EARLY IN THE EVENING DECREASING TO 2 LATE IN
THE NIGHT.
TIME (EDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY (%).........3 2 1 2 2 2 1 1 0 1 3 4
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CHC OF PCPN (%).0 0 0 0 0 0 0 0 0 0 0 0
TEMP............64 63 58 55 51 49 47 45 42 42 41 40
RH..............32 32 39 43 48 52 56 58 65 67 73 79
20 FT WIND DIR..NW N N N NE NE E SE SE SE SE SE
20 FT WIND SPD..6 3 2 2 2 2 2 2 2 2 2 2
20 FT WIND GUST.10 7 3 3 3 3 3 3 3 3 3 3
RIDGE WIND DIR..NW N N N NE NE E SE SE SE SE SE
RIDGE WIND SPD..6 5 3 3 3 3 3 3 3 3 3 3
MIX HGT (KFT)...4.2 2.2 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1
TRANSP WIND DIR.NW NW N N NE NE E E SE SE SE SE
TRANSP WIND SPD.15 9 3 3 3 3 3 3 3 5 5 5
LVORI...........1 2 2 2 2 2 3 3 3 3 3 4
ADI.............80 4 2 2 2 2 2 2 2 2 2 2
VRATE KT-FT/1K..55 18 0 0 0 0 0 0 0 0 0 0
VENTRATE CAT....FR PR PR PR PR PR PR PR PR PR PR PR
TUESDAY
SKY/WEATHER.........SUNNY (5-15 PERCENT).
CHANCE OF PCPN......0 PERCENT.
MAX TEMPERATURE.....AROUND 77.
MIN HUMIDITY........24 PERCENT.
WIND (20 FT)........LIGHT WINDS BECOMING SOUTHWEST 5 TO 7 MPH IN
THE LATE MORNING AND AFTERNOON.
RIDGETOP WIND.......SOUTH 5 TO 6 MPH SHIFTING TO THE SOUTHWEST 8 TO
9 MPH IN THE AFTERNOON.
MIXING HEIGHT.......6100 FT AGL.
TRANSPORT WINDS.....SOUTH 5 TO 8 MPH SHIFTING TO THE WEST 10 TO 17
MPH LATE IN THE MORNING, THEN INCREASING TO
AROUND 20 MPH LATE IN THE AFTERNOON.
VENT RATE...........POOR (300 KNOT-FT) INCREASING TO EXCELLENT
(102400 KNOT-FT).
LVORI...............3.
ADI.................2 EARLY IN THE MORNING INCREASING TO 133 IN THE
AFTERNOON.
TIME (EDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........5 7 8 9 10 11 11 12 13 15 16 18
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CHC OF PCPN (%).0 0 0 0 0 0 0 0 0 0 0 0
TEMP............41 41 43 50 59 65 69 72 75 76 77 77
RH..............76 79 76 63 47 41 37 33 28 27 26 26
20 FT WIND DIR..S S S S S SW SW SW SW SW SW SW
20 FT WIND SPD..3 3 5 5 6 6 6 7 7 7 8 8
20 FT WIND GUST.6 6 7 8 10 12 13 14 15 15 16 16
RIDGE WIND DIR..S S S S S SW SW SW SW SW SW SW
RIDGE WIND SPD..5 5 5 5 6 6 6 8 8 8 9 9
MIX HGT (KFT)...0.1 0.1 0.1 0.5 1.4 1.8 3.2 4.6 6.0 6.0 6.1 6.1
TRANSP WIND DIR.S S S S SW SW W W W W W W
TRANSP WIND SPD.5 5 5 7 8 10 15 15 17 20 20 20
LVORI...........4 4 4 3 2 2 1 1 1 1 1 1
ADI.............2 4 4 7 14 24 62 80 115 131 132 133
VRATE KT-FT/1K..0 0 0 3 10 16 42 60 90 102 103 104
VENTRATE CAT....PR PR PR PR PR PR FR FR GD VGD VGD VGD
FORECASTER...HAL
REQUESTED BY...MARIAH HEYE
TYPE OF REQUEST...WILDFIRE
.TAG 2610373.5/JKL
.DELDT 04/20/26
.FORMATTERVERSION 2.0.0
.EMAIL 2026.ALUM@FIRENET.GOV,MICHAEL.TAPLEY@USDA.GOV,ROBERT_VICK@NPS.GOV,KYKIC@FIRENET.GOV,MARIAH.HEYE@USDA.GOV
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