204
FNUS73 KPAH 152139
FWSPAH
SPOT FORECAST FOR IDNR PRESCRIBED BURN - PYRAMID...ILLINOIS DNR
NATIONAL WEATHER SERVICE PADUCAH KY
339 PM CST MON DEC 15 2025
FORECAST IS BASED ON IGNITION TIME OF 0600 CST ON DECEMBER 16.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.
DISCUSSION
BREEZY SOUTHERLY WINDS CONTINUE TOMORROW UNDER MOSTLY CLOUDY
SKIES. INCREASING MOISTURE LEVELS WILL KEEP RHS AROUND 50% FOR AN
AFTERNOON MINIMUM. WARM AIR ADVECTION ALOFT WILL KEEP THE MIXING
LAYER FAIRLY LOW. CONTINUED WARMING AND MOISTENING WITH SOMEWHAT
BETTER MIXING IS PROJECTED FOR WEDNESDAY.
TUESDAY
SKY/WEATHER.........MOSTLY SUNNY (45-55 PERCENT).
CWR.................0 PERCENT.
TEMPERATURE.........27 AT IGNITION...MAX 45.
RH..................71 PERCENT AT IGNITION...MIN 51 PERCENT.
WIND (20 FT)........
SLOPE/VALLEY.......WINDS SOUTH AT 6 MPH AT IGNITION...OTHERWISE
SOUTH WINDS 5 TO 10 MPH.
MIXING HEIGHT.......400 FT AGL AT IGNITION...OTHERWISE 1600 FT AGL.
TRANSPORT WINDS.....SOUTH 13 TO 21 MPH.
SMOKE DISPERSAL.....POOR /4000 KNOT-FT/ AT IGNITION. MAX...POOR
/27900 KNOT-FT/.
TIME (CST) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY COVER.......PC PC PC MC PC PC PC MC MC MC MC PC
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CWR.............0 0 0 0 0 0 0 0 0 0 0 0
TEMP............27 28 29 33 36 41 42 44 45 44 42 40
RH..............71 71 69 63 60 56 54 51 53 58 62 67
20 FT WIND DIR..S S S S S S S S S S S S
20 FT WIND SPD..6 6 7 8 10 10 12 13 13 13 13 12
20 FT WIND GUST.9 9 14 14 16 16 16 18 21 20 21 20
MIX HGT (KFT)...0.4 0.4 0.6 0.7 0.9 1.2 1.5 1.6 1.5 1.3 0.9 0.8
TRANSP WIND DIR.S S S S S S S S S S S S
TRANSP WIND SPD.13 13 13 14 15 16 18 18 21 20 20 17
VRATE KT-FT/1K..4 4 6 8 12 17 24 25 28 22 16 11
VENTRATE CAT....PR PR PR PR PR PR PR PR PR PR PR PR
TUESDAY NIGHT
SKY/WEATHER.........PARTLY CLOUDY (40-50 PERCENT) THEN BECOMING
MOSTLY CLOUDY (60-70 PERCENT).
CWR.................0 PERCENT.
TEMPERATURE.........MIN 33.
RH..................MAX 96 PERCENT.
WIND (20 FT)........
SLOPE/VALLEY.......SOUTHWEST WINDS 5 TO 8 MPH BECOMING LIGHT.
MIXING HEIGHT.......300 FT AGL.
TRANSPORT WINDS.....SOUTHWEST 13 TO 20 MPH.
SMOKE DISPERSAL.....POOR (3300 KNOT-FT).
TIME (CST) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY COVER.......PC PC PC PC MC MC MC MC MC MC MC MC
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CWR.............0 0 0 0 0 0 0 0 0 0 0 0
TEMP............38 37 37 37 38 37 37 36 36 35 34 34
RH..............73 75 79 79 76 79 79 82 82 89 92 92
20 FT WIND DIR..S S S SW SW SW SW SW SW SW SW SW
20 FT WIND SPD..10 10 10 10 10 9 8 7 7 6 6 5
20 FT WIND GUST.18 18 18 18 17 16 15 14 14 13 12 10
MIX HGT (KFT)...0.6 0.6 0.6 0.5 0.5 0.5 0.4 0.4 0.4 0.4 0.3 0.3
TRANSP WIND DIR.SW SW SW SW SW SW SW SW SW SW SW SW
TRANSP WIND SPD.17 20 18 17 17 17 16 15 15 14 13 13
VRATE KT-FT/1K..9 10 9 8 8 7 6 6 5 4 4 3
VENTRATE CAT....PR PR PR PR PR PR PR PR PR PR PR PR
WEDNESDAY
SKY/WEATHER.........MOSTLY SUNNY (30-40 PERCENT).
CWR.................0 PERCENT.
TEMPERATURE.........MAX 53.
RH..................MIN 60 PERCENT.
WIND (20 FT)........
SLOPE/VALLEY.......LIGHT WINDS BECOMING SOUTH AROUND 5 MPH LATE IN
THE AFTERNOON.
MIXING HEIGHT.......2000 FT AGL.
TRANSPORT WINDS.....SOUTHWEST 7 TO 12 MPH.
SMOKE DISPERSAL.....POOR (3000 KNOT-FT).
TIME (CST) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY COVER.......MC PC PC MCR MCR MCR MCR MCR MCR MCR MCR MCR
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CWR.............0 0 0 0 0 0 0 0 0 0 0 0
TEMP............34 35 37 39 42 46 49 51 52 52 50 48
RH..............96 96 96 92 86 73 67 64 61 65 70 77
20 FT WIND DIR..SW SW SW SW SW SW SW S S S S S
20 FT WIND SPD..5 5 3 3 3 5 5 5 6 6 6 6
20 FT WIND GUST.9 8 7 7 7 7 8 9 9 10 10 10
MIX HGT (KFT)...0.3 0.3 0.3 0.5 0.9 1.4 1.8 2.0 2.0 1.9 1.4 0.9
TRANSP WIND DIR.SW SW SW SW SW SW SW SW S S S S
TRANSP WIND SPD.12 12 12 12 10 8 7 8 10 12 12 12
VRATE KT-FT/1K..3 3 4 5 8 10 11 14 17 19 15 9
VENTRATE CAT....PR PR PR PR PR PR PR PR PR PR PR PR
FORECASTER...LESAGE
REQUESTED BY...DISTRICT HERITAGE BIOLOGIST
TYPE OF REQUEST...PRESCRIBED
.TAG 2527747.0/PAH
.DELDT 12/15/25
.FORMATTERVERSION 2.0.0
.EMAIL STEPHEN.TILLMAN@ILLINOIS.GOV
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