513
FNUS73 KILX 070145
FWSILX
SPOT FORECAST FOR MIDDLE FORK SFWA GSB...IDNR
NATIONAL WEATHER SERVICE LINCOLN IL
845 PM CDT TUE OCT 6 2026
FORECAST IS BASED ON IGNITION TIME OF 0800 CDT ON OCTOBER 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
DRY WEATHER WILL PREVAIL ACROSS CENTRAL AND SOUTHEAST ILLINOIS
FOR THE REST OF THE WEEK. WINDS WILL TURN FROM SOUTHERLY TONIGHT
TO WEST TO NORTHWEST AT 5-15 MPH WEDNESDAY AS A DRY COLD FRONT
PASSES THROUGH. AFTERNOON MINIMUM RELATIVE HUMIDITY WILL BE
SLIGHTLY HIGHER WEDNESDAY THEN WILL LOWER TO AROUND 30 PERCENT
OR LESS AGAIN THURSDAY THROUGH SATURDAY. VENTILATION RATES WILL
BE FAIR WEDNESDAY, BUT GENERALLY DECREASE SLIGHTLY FOR THURSDAY
AS TRANSPORT WINDS DECREASE.
THE NEXT CHANCE FOR PRECIPITATION WILL BE ON SUNDAY, MAINLY FOR
SOUTHEAST IL, DEPENDING ON THE UNCERTAIN EVENTUAL TRACK FOR THE
REMNANTS OF A TROPICAL WEATHER SYSTEM.
FRIDAY
SKY/WEATHER.........SUNNY (10-20 PERCENT).
TEMPERATURE.........52 AT IGNITION...MAX 78.
RH..................74 PERCENT AT IGNITION...MIN 29 PERCENT.
WIND (20 FT)........WINDS EAST AT 2 MPH AT IGNITION...OTHERWISE
LIGHT WINDS.
MIXING HEIGHT.......800 FT AGL AT IGNITION...OTHERWISE 3900 FT AGL.
TRANSPORT WINDS.....SOUTHEAST 8 TO 10 MPH.
SMOKE DISPERSAL.....POOR /5100 KNOT-FT/ AT IGNITION. MAX...POOR
/35300 KNOT-FT/.
TIME (CDT) 8 AM 10 AM NOON 2 PM 4 PM
SKY (%).........16 9 13 14 12
WEATHER COV.....
WEATHER TYPE....NONE NONE NONE NONE NONE
TSTM COV........
TEMP............52 64 73 78 78
RH..............74 54 37 29 29
20 FT WIND......E 2 SE 5 SE 6 SE 6 SE 6
20 FT WIND GUST.6 10 10 10 12
MIX HGT (FT)....800 1500 2600 3400 3900
TRANSPORT WIND..SE 8 SE 9 SE 9 S 9 S 10
VRATE KT-FT/1K..5 12 21 28 35
VENTRATE CAT....POOR POOR POOR POOR POOR
FRIDAY NIGHT
SKY/WEATHER.........MOSTLY CLEAR (10-20 PERCENT).
TEMPERATURE.........MIN 54.
RH..................MAX 69 PERCENT.
WIND (20 FT)........LIGHT WINDS.
MIXING HEIGHT.......400 FT AGL.
TRANSPORT WINDS.....SOUTHEAST 10 TO 12 MPH.
SMOKE DISPERSAL.....POOR (4100 KNOT-FT).
TIME (CDT) 6 PM 8 PM 10 PM MIDNGT 2 AM 4 AM
SKY (%).........14 16 16 16 11 11
WEATHER COV.....
WEATHER TYPE....NONE NONE NONE NONE NONE NONE
TSTM COV........
TEMP............73 66 61 59 57 56
RH..............35 45 53 57 62 64
20 FT WIND......SE 5 SE 5 SE 6 SE 5 SE 5 S 5
20 FT WIND GUST.10 10 12 12 12 12
MIX HGT (FT)....1600 500 500 400 400 500
TRANSPORT WIND..SE 10 SE 10 SE 12 SE 12 SE 12 SE 10
VRATE KT-FT/1K..15 4 5 5 4 4
VENTRATE CAT....POOR POOR POOR POOR POOR POOR
FORECASTER...WFO ILX
REQUESTED BY...KALEB WOOD
TYPE OF REQUEST...PRESCRIBED
.TAG 2623284.0/ILX
.DELDT 10/06/26
.FORMATTERVERSION 2.0.0
.EMAIL KALEB.WOOD@ILLINOIS.GOV
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