209
FNUS73 KILX 071240
FWSILX
SPOT FORECAST FOR MANITO PHA...ILLINOIS DNR
NATIONAL WEATHER SERVICE LINCOLN IL
740 AM CDT TUE APR 7 2026
FORECAST IS BASED ON IGNITION TIME OF 0900 CDT ON APRIL 07.
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
A WEAK DISTURBANCE WILL BRING A PERIOD OF VERY LIGHT RAIN POSSIBLY
MIXED WITH SNOW ALONG AND SOUTH OF A MACOMB...TO DECATUR...TO
MATTOON LINE EARLY THIS MORNING. ANY LIGHT PRECIPITATION WILL COME
TO AN END BY MIDDAY, FOLLOWED BY A RETURN TO DRY CONDITIONS
ACROSS THE BOARD THROUGH WEDNESDAY. THANKS TO LOW MIXING HEIGHTS
AND LIGHT EASTERLY WINDS, VENTILATION WILL BE POOR TODAY. AS WINDS
VEER TO SOUTHERLY AND GUST 25-30MPH, VENTILATION WILL IMPROVE
MARKEDLY ON WEDNESDAY.
REST OF TODAY
SKY/WEATHER.........MOSTLY CLOUDY (75-85 PERCENT).
CHANCE OF PCPN......10 PERCENT.
CHANCE OF THUNDER...0 PERCENT.
TEMPERATURE.........36 AT IGNITION...MAX 48.
RH..................63 PERCENT AT IGNITION...MIN 40 PERCENT.
WIND (20 FT)........WINDS EAST AT 8 MPH AT IGNITION...OTHERWISE
EAST WINDS AROUND 7 MPH.
MIXING HEIGHT.......2600 FT AGL AT IGNITION...OTHERWISE 3700 FT
AGL.
TRANSPORT WINDS.....EAST 10 TO 16 MPH.
SMOKE DISPERSAL.....POOR /36400 KNOT-FT/ AT IGNITION. MAX...FAIR
/41600 KNOT-FT/.
TIME (CDT) 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........89 89 86 82 77 76 74 72 69
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CHC OF PCPN (%).10 10 10 10 10 10 10 10 10
CHC OF THDR (%).0 0 0 0 0 0 0 0 0
TEMP............36 37 40 42 44 45 47 47 48
RH..............63 61 55 53 49 45 42 42 40
20 FT WIND DIR..E E E E E E SE SE SE
20 FT WIND SPD..8 8 8 9 9 9 8 8 8
20 FT WIND GUST.17 17 17 16 16 16 15 15 15
MIX HGT (KFT)...2.6 2.9 3.2 3.5 3.7 3.7 3.6 3.7 3.6
TRANSP WIND DIR.E E E E E E E E E
TRANSP WIND SPD.16 15 15 13 12 12 12 10 10
VRATE KT-FT/1K..36 37 42 39 37 37 36 33 32
VENTRATE CAT....PR PR FR PR PR PR PR PR PR
TONIGHT
SKY/WEATHER.........MOSTLY CLOUDY (65-75 PERCENT).
CHANCE OF PCPN......10 PERCENT.
CHANCE OF THUNDER...5 PERCENT.
TEMPERATURE.........MIN 38.
RH..................MAX 62 PERCENT.
WIND (20 FT)........SOUTHEAST WINDS 6 TO 8 MPH. GUSTS UP TO 23 MPH
OVERNIGHT.
MIXING HEIGHT.......700 FT AGL.
TRANSPORT WINDS.....SOUTHEAST 13 TO 20 MPH.
SMOKE DISPERSAL.....POOR (9800 KNOT-FT).
TIME (CDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY (%).........67 65 63 61 63 66 72 81 69 68 63 67
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CHC OF PCPN (%).10 10 10 10 10 10 10 0 0 0 0 0
CHC OF THDR (%).0 0 0 0 10 10 10 0 0 0 0 0
TEMP............48 46 44 43 42 42 41 39 39 38 38 38
RH..............40 43 47 51 53 55 57 62 59 62 62 62
20 FT WIND DIR..SE SE SE SE SE SE SE SE SE SE SE SE
20 FT WIND SPD..8 8 8 8 8 8 9 9 9 10 10 10
20 FT WIND GUST.16 16 16 18 18 18 21 21 21 23 23 23
MIX HGT (KFT)...3.3 1.8 0.9 0.9 0.9 0.8 0.8 0.9 0.8 0.8 0.7 0.8
TRANSP WIND DIR.E E SE SE SE SE SE SE SE SE SE SE
TRANSP WIND SPD.14 14 13 13 15 15 15 16 16 17 17 20
VRATE KT-FT/1K..39 21 10 10 11 11 11 12 11 12 11 13
VENTRATE CAT....PR PR PR PR PR PR PR PR PR PR PR PR
WEDNESDAY
SKY/WEATHER.........MOSTLY SUNNY (40-50 PERCENT).
CHANCE OF PCPN......0 PERCENT.
CHANCE OF THUNDER...0 PERCENT.
TEMPERATURE.........MAX 70.
RH..................MIN 39 PERCENT.
WIND (20 FT)........SOUTH WINDS 8 TO 14 MPH WITH GUSTS TO AROUND 30
MPH.
MIXING HEIGHT.......5100 FT AGL.
TRANSPORT WINDS.....SOUTH 18 TO 26 MPH INCREASING TO 28 TO 33 MPH
IN THE AFTERNOON.
SMOKE DISPERSAL.....POOR (12600 KNOT-FT) EARLY IN THE MORNING
INCREASING TO GOOD (93600 KNOT-FT) IN THE
AFTERNOON INCREASING TO VERY GOOD (104300
KNOT-FT) LATE IN THE AFTERNOON.
TIME (CDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........64 43 51 51 51 51 51 51 43 35 27 30
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CHC OF PCPN (%).0 0 0 0 0 0 0 0 0 0 0 0
CHC OF THDR (%).0 0 0 0 0 0 0 0 0 0 0 0
TEMP............38 38 40 44 50 55 59 63 66 69 70 70
RH..............62 62 62 58 52 49 47 44 43 39 39 41
20 FT WIND DIR..SE SE SE S S S S S S S S S
20 FT WIND SPD..12 12 12 15 15 15 17 17 17 17 17 17
20 FT WIND GUST.24 24 24 29 29 29 30 30 30 30 30 30
MIX HGT (KFT)...0.8 0.8 1.2 1.3 1.6 2.0 2.5 2.9 3.6 4.3 5.1 3.9
TRANSP WIND DIR.SE SE S S S S S S S SW SW SW
TRANSP WIND SPD.18 18 24 24 24 26 28 28 30 32 33 31
VRATE KT-FT/1K..13 13 25 28 34 47 58 69 94 122 148 104
VENTRATE CAT....PR PR PR PR PR FR FR GD GD VGD VGD VGD
FORECASTER...MJA
REQUESTED BY...GREG FRETUEG
TYPE OF REQUEST...PRESCRIBED
.TAG 2609302.0/ILX
.DELDT 04/07/26
.FORMATTERVERSION 2.0.0
.EMAIL GREGORY.FRETUEG@ILLINOIS.GOV
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