049
FNUS73 KILX 091223
FWSILX
SPOT FORECAST FOR FINFROCK SHA RX BURN 9-9-25...ILLINOIS DNR
NATIONAL WEATHER SERVICE LINCOLN IL
723 AM CDT TUE SEP 9 2025
FORECAST IS BASED ON IGNITION TIME OF 0900 CDT ON SEPTEMBER 09.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.
PLEASE CONTACT OUR OFFICE AT (217) 732-3089 IF YOU HAVE QUESTIONS
OR CONCERNS WITH THIS FORECAST.
DISCUSSION
LIGHT SOUTHEAST WINDS EARLY THIS MORNING WILL TRANSITION TO
SOUTHERLY BY MIDDAY AND REMAIN SOUTHERLY THROUGH THE
AFTERNOON/EVENING BEFORE BECOMING LIGHT AND VARIABLE OVERNIGHT.
DESPITE DEEP MIXING THIS AFTERNOON, VENT RATES WILL BE POOR DUE
TO LIGHT WINDS. RH VALUES WILL DROP AS LOW AS 30% THIS AFTERNOON.
REST OF TODAY
SKY/WEATHER.........MOSTLY SUNNY (35-45 PERCENT).
CHANCE OF PCPN......0 PERCENT.
CHANCE OF THUNDER...0 PERCENT.
TEMPERATURE.........60 AT IGNITION...MAX 78.
RH..................64 PERCENT AT IGNITION...MIN 35 PERCENT.
WIND (20 FT)........WINDS SOUTH AT 7 MPH AT IGNITION...OTHERWISE
SOUTH WINDS 5 TO 7 MPH.
MIXING HEIGHT.......700 FT AGL AT IGNITION...OTHERWISE 5000 FT AGL.
TRANSPORT WINDS.....SOUTH 8 TO 10 MPH.
SMOKE DISPERSAL.....POOR /5500 KNOT-FT/ AT IGNITION. MAX...POOR
/39700 KNOT-FT/.
TIME (CDT) 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........43 40 38 36 33 36 39 42 41
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CHC OF PCPN (%).0 0 0 0 0 0 0 0 0
CHC OF THDR (%).0 0 0 0 0 0 0 0 0
TEMP............60 67 71 73 75 77 78 78 77
RH..............64 54 46 41 38 36 35 35 37
20 FT WIND DIR..S S S S S S S S S
20 FT WIND SPD..7 7 7 8 8 8 7 7 7
20 FT WIND GUST.12 12 12 10 10 10 9 9 9
MIX HGT (KFT)...0.7 1.3 2.8 4.1 4.7 4.9 4.9 5.0 4.4
TRANSP WIND DIR.S S S S S S S S S
TRANSP WIND SPD.9 10 10 9 9 8 8 8 10
VRATE KT-FT/1K..6 12 25 33 38 35 35 35 40
VENTRATE CAT....PR PR PR PR PR PR PR PR PR
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY (40-50 PERCENT) THEN BECOMING
MOSTLY CLOUDY (50-60 PERCENT) THEN BECOMING
PARTLY CLOUDY (35-45 PERCENT).
CHANCE OF PCPN......10 PERCENT.
CHANCE OF THUNDER...5 PERCENT.
TEMPERATURE.........MIN 56.
RH..................MAX 80 PERCENT.
WIND (20 FT)........LIGHT WINDS.
MIXING HEIGHT.......400 FT AGL.
TRANSPORT WINDS.....SOUTHEAST 7 TO 12 MPH.
SMOKE DISPERSAL.....POOR (2400 KNOT-FT).
TIME (CDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY (%).........40 39 41 43 45 43 40 38 43 48 53 42
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CHC OF PCPN (%).0 0 0 0 0 0 0 10 10 10 10 10
CHC OF THDR (%).0 0 0 0 0 0 0 10 10 10 10 10
TEMP............76 72 68 64 62 60 59 58 58 58 57 56
RH..............39 46 53 60 67 69 72 75 72 72 75 77
20 FT WIND DIR..SE SE SE SE SE SE SE SE SE SE SE SE
20 FT WIND SPD..5 5 5 5 5 5 5 5 5 5 5 5
20 FT WIND GUST.6 6 6 8 8 8 8 8 8 8 8 8
MIX HGT (KFT)...0.7 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4
TRANSP WIND DIR.S SE SE SE SE SE SE SE S S SE S
TRANSP WIND SPD.7 7 8 9 10 10 10 10 12 9 9 8
VRATE KT-FT/1K..4 2 3 4 4 4 4 4 4 3 3 3
VENTRATE CAT....PR PR PR PR PR PR PR PR PR PR PR PR
WEDNESDAY
SKY/WEATHER.........SUNNY (15-25 PERCENT).
CHANCE OF PCPN......10 PERCENT.
CHANCE OF THUNDER...5 PERCENT.
TEMPERATURE.........MAX 83.
RH..................MIN 41 PERCENT.
WIND (20 FT)........LIGHT WINDS BECOMING SOUTH AROUND 5 MPH LATE IN
THE MORNING, THEN BECOMING LIGHT IN THE
AFTERNOON.
MIXING HEIGHT.......4300 FT AGL.
TRANSPORT WINDS.....SOUTH 6 TO 8 MPH SHIFTING TO THE SOUTHWEST 6 TO
7 MPH LATE IN THE AFTERNOON.
SMOKE DISPERSAL.....POOR (1900 KNOT-FT).
TIME (CDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........32 22 20 22 25 8 17 26 22 19 15 14
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CHC OF PCPN (%).10 10 10 10 10 10 10 0 0 0 0 0
CHC OF THDR (%).10 0 0 0 0 0 0 0 0 0 0 0
TEMP............56 56 60 66 71 75 78 79 81 82 82 81
RH..............80 80 78 68 57 50 45 44 41 41 41 44
20 FT WIND DIR..SE SE SE S S S S S S S S S
20 FT WIND SPD..5 5 5 6 6 6 5 5 5 3 3 3
20 FT WIND GUST.8 8 8 8 8 8 7 7 7 7 7 7
MIX HGT (KFT)...0.4 0.4 0.3 0.6 1.1 1.8 2.6 3.3 3.6 4.0 4.3 3.0
TRANSP WIND DIR.SE SE S S S S S S SW SW SW SW
TRANSP WIND SPD.7 8 7 7 6 6 6 7 7 7 7 6
VRATE KT-FT/1K..2 3 2 4 6 9 14 20 23 25 26 16
VENTRATE CAT....PR PR PR PR PR PR PR PR PR PR PR PR
FORECASTER...ERWIN
REQUESTED BY...GREG FRETUEG
TYPE OF REQUEST...PRESCRIBED
.TAG 2521618.0/ILX
.DELDT 09/09/25
.FORMATTERVERSION 2.0.0
.EMAIL GREGORY.FRETUEG@ILLINOIS.GOV
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