424
FNUS73 KLMK 241345
FWSLMK
SPOT FORECAST FOR IRON BRIDGE RX BURN UNIT...INDNR
NATIONAL WEATHER SERVICE LOUISVILLE KY
945 AM EDT TUE MAR 24 2026
FORECAST IS BASED ON IGNITION TIME OF 1100 EDT ON MARCH 25.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.
DISCUSSION
WEDNESDAY WILL BE PARTLY CLOUDY AND WARMER, WITH
AFTERNOON HIGHS NEAR 70 DEGREES. WINDS FROM THE SOUTHWEST WILL
INCREASE LATE WEDNESDAY MORNING THROUGH THE AFTERNOON HOURS.
AFTERNOON RH VALUES ARE FORECAST TO DROP INTO THE MID 30% RANGE.
STRONGER SOUTHWESTERLY TRANSPORT WINDS AND DEEPER AFTERNOON MIXING
WILL PROMOTE GOOD SMOKE DISPERSAL.
WEDNESDAY
SKY/WEATHER.........PARTLY SUNNY (55-65 PERCENT).
TEMPERATURE.........58 AT IGNITION...MAX 70.
RH..................45 PERCENT AT IGNITION...MIN 35 PERCENT.
WIND (20 FT)........WINDS SOUTH AT 2 MPH AT IGNITION...OTHERWISE
LIGHT WINDS BECOMING SOUTHWEST AROUND 5 MPH
LATE IN THE AFTERNOON.
MIXING HEIGHT.......1600 FT AGL AT IGNITION...OTHERWISE 4500 FT
AGL.
TRANSPORT WINDS.....SOUTHWEST 16 TO 21 MPH.
SMOKE DISPERSAL.....POOR /22800 KNOT-FT/ AT IGNITION. MAX...GOOD
/80600 KNOT-FT/.
LVORI...............1.
ADI.................34 EARLY IN THE MORNING INCREASING TO 81 IN THE
AFTERNOON.
TIME (EDT) 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........52 56 61 65 62 60 57
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
TEMP............58 62 65 67 69 70 70
RH..............45 43 40 39 36 36 36
20 FT WIND DIR..S S SW SW SW SW SW
20 FT WIND SPD..2 3 3 4 4 4 4
20 FT WIND GUST.7 8 9 9 9 9 9
MIX HGT (KFT)...1.6 2.5 3.3 4.0 4.4 4.5 4.1
TRANSP WIND DIR.S SW SW SW SW SW SW
TRANSP WIND SPD.16 17 18 20 21 21 20
LVORI...........1 1 1 1 1 1 1
ADI.............34 53 63 73 81 81 74
SDSPL KT-FT/100023 37 53 68 80 81 70
WEDNESDAY NIGHT
SKY/WEATHER.........MOSTLY CLOUDY (50-60 PERCENT). SLIGHT CHANCE OF
SHOWERS AND THUNDERSTORMS OVERNIGHT.
TEMPERATURE.........MIN 57.
RH..................MAX 72 PERCENT.
WIND (20 FT)........LIGHT WINDS BECOMING SOUTH AROUND 5 MPH AFTER 3
AM. GUSTY AND ERRATIC WINDS EXPECTED NEAR
THUNDERSTORMS OVERNIGHT.
MIXING HEIGHT.......300 FT AGL.
TRANSPORT WINDS.....SOUTHWEST 12 TO 20 MPH SHIFTING TO THE SOUTH
AROUND 22 MPH EARLY IN THE MORNING.
SMOKE DISPERSAL.....FAIR (45500 KNOT-FT) EARLY IN THE EVENING
DECREASING TO POOR (2600 KNOT-FT) LATE IN THE
NIGHT.
LVORI...............2.
ADI.................56 EARLY IN THE EVENING DECREASING TO 5 LATE IN
THE NIGHT.
TIME (EDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY (%).........55 53 51 49 48 46 48 49 51 52 54 55
WEATHER COV..... SCH SCH SCH SCH
WEATHER TYPE.... RW RW RW RW
TSTM COV........ SCH SCH SCH SCH
TEMP............69 67 65 63 61 60 59 59 59 58 58 58
RH..............39 45 50 54 58 60 64 64 67 69 72 72
20 FT WIND DIR..SW S S S S S S S S S S S
20 FT WIND SPD..3 3 2 2 2 2 2 3 3 3 4 4
20 FT WIND GUST.8 6 6 6 6 6 7 7 8 9 9 10
MIX HGT (KFT)...3.0 1.7 0.6 0.3 0.3 0.4 0.5 0.5 0.6 0.7 0.9 0.9
TRANSP WIND DIR.SW SW S S S S S S S S S S
TRANSP WIND SPD.17 14 12 12 14 15 15 15 15 17 20 22
LVORI...........1 2 2 2 3 3 3 3 3 3 3 3
ADI.............56 9 5 5 6 7 7 10 10 12 13 15
SDSPL KT-FT/100046 20 6 3 3 5 6 7 8 11 15 18
THURSDAY
SKY/WEATHER.........MOSTLY SUNNY (30-40 PERCENT). SLIGHT CHANCE OF
SHOWERS AND THUNDERSTORMS EARLY IN THE MORNING.
TEMPERATURE.........MAX 84.
RH..................MIN 40 PERCENT.
WIND (20 FT)........SOUTHWEST WINDS 5 TO 8 MPH. GUSTS UP TO 22 MPH
LATE IN THE MORNING. GUSTY AND ERRATIC WINDS
EXPECTED NEAR THUNDERSTORMS EARLY IN THE
MORNING.
MIXING HEIGHT.......4400 FT AGL.
TRANSPORT WINDS.....SOUTHWEST 17 TO 24 MPH INCREASING TO 26 TO 31
MPH LATE IN THE MORNING.
SMOKE DISPERSAL.....POOR (13300 KNOT-FT) EARLY IN THE MORNING
INCREASING TO EXCELLENT (103100 KNOT-FT) IN THE
AFTERNOON INCREASING TO EXCELLENT (113700
KNOT-FT) LATE IN THE AFTERNOON.
LVORI...............2.
ADI.................14 EARLY IN THE MORNING INCREASING TO 120 IN
THE AFTERNOON.
TIME (EDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........52 48 45 36 28 19 18 18 17 16 15 14
WEATHER COV.....SCH SCH
WEATHER TYPE....RW RW
TSTM COV........SCH SCH
TEMP............59 60 61 63 66 69 73 77 80 82 83 84
RH..............69 69 70 70 65 63 57 52 47 44 41 40
20 FT WIND DIR..S S S S SW SW SW SW SW SW SW SW
20 FT WIND SPD..4 4 4 5 5 6 6 6 6 6 7 7
20 FT WIND GUST.11 11 11 12 13 14 14 15 15 15 15 15
MIX HGT (KFT)...0.9 0.8 0.9 1.3 1.8 2.3 2.8 3.3 3.7 4.1 4.4 4.3
TRANSP WIND DIR.S S S SW SW SW SW SW SW SW SW SW
TRANSP WIND SPD.21 18 17 21 24 28 28 26 26 29 30 31
LVORI...........3 3 3 3 1 1 1 1 1 1 1 1
ADI.............14 20 21 35 56 82 97 89 95 109 116 120
SDSPL KT-FT/100016 13 14 23 38 56 68 76 85 103 114 116
FORECASTER...EBW
REQUESTED BY...STAN BAELZ
TYPE OF REQUEST...PRESCRIBED
.TAG 2607538.0/LMK
.DELDT 03/25/26
.FORMATTERVERSION 2.0.0
.EMAIL SBAELZ@DNR.IN.GOV
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page