Spot Forecast
Issued by NWS Chicago, IL
Issued by NWS Chicago, IL
221
FNUS73 KLOT 122312
FWSLOT
Spot Forecast for Midewin Fall RX...USFS
National Weather Service Chicago IL
512 PM CST Wed Nov 12 2025
Forecast is based on ignition time of 1000 CST on November 13.
If conditions become unrepresentative, contact the National Weather
Service.
Please contact our office at (815) 834-0666 if you have questions
or concerns with this forecast.
.DISCUSSION...Dry weather is expected Thursday through Friday. A
ridge of high pressure will move across the area Thursday
afternoon into early Thursday evening. This will result in light
surface winds and light transport winds with directions shifting
from southwest Thursday afternoon to southerly by sunset Thursday
evening.
.THURSDAY...
Sky/weather.........Partly cloudy.
Temperature.........47 at ignition...Max 57.
RH..................53 percent at ignition...Min 33 percent.
Wind (20 ft)........Winds west at 3 mph at ignition...otherwise
southwest around 5 mph becoming south by
sunset.
Chance of pcpn......0 percent.
Transport winds.....West 7 to 9 mph shifting to the south 5 to 6
mph late in the afternoon.
Mixing height.......1100 ft AGL at ignition...increasing to 2100 ft
AGL.
Smoke dispersal.....Poor /7800 knot-ft/ at ignition. Max...fair
/16200 knot-ft/.
TIME (CST) 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........27 29 30 35 39 43 40 38
Weather cov.....
Weather type....
Temp............47 51 54 56 57 57 54 50
RH..............53 44 38 35 33 33 36 43
20 FT wind dir..270 260 250 250 240 220 210 180
20 FT wind spd..3 5 5 5 5 5 5 3
20 FT wind gust.8 8 8 8 8 8 7 6
Mix hgt (kft)...1.1 1.4 1.9 2.0 2.1 1.8 0.5 0.4
Transp wind dir.300 290 280 280 270 260 200 170
Transp wind spd.8 7 9 9 8 7 5 6
Chc of pcpn (%).0 0 0 0 0 0 0 0
Vrate kt-ft/1K..8 9 16 16 14 10 2 2
.THURSDAY NIGHT...
Sky/weather.........Partly cloudy.
Temperature.........Min 36.
RH..................Max 95 percent.
Wind (20 ft)........Light winds.
Chance of pcpn......0 percent.
Transport winds.....South 7 to 12 mph.
Mixing height.......300 ft AGL.
Smoke dispersal.....Poor (2000 knot-ft).
TIME (CST) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........34 37 26 20 20 20 20 19 18 17 17 18
Weather cov.....
Weather type....
Temp............47 45 44 43 41 40 40 39 38 38 37 36
RH..............51 57 63 69 74 77 80 83 87 90 93 95
20 FT wind dir..160 160 160 160 160 160 160 160 160 160 160 150
20 FT wind spd..3 3 3 3 3 5 5 5 5 5 5 5
20 FT wind gust.6 6 6 7 7 8 9 9 9 9 9 9
Mix hgt (kft)...0.3 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.170 170 170 180 180 180 180 180 180 170 170 180
Transp wind spd.7 8 9 10 12 12 12 12 12 12 10 10
Chc of pcpn (%).0 0 0 0 0 0 0 0 0 0 0 0
Vrate kt-ft/1K..2 3 3 4 4 4 4 4 4 4 3 3
.FRIDAY...
Sky/weather.........Mostly sunny.
Temperature.........Max 65.
RH..................Min 64 percent.
Wind (20 ft)........Light winds becoming south 5 to 6 mph.
Chance of pcpn......0 percent.
Transport winds.....South 8 to 12 mph.
Mixing height.......1700 ft AGL.
Smoke dispersal.....Poor (2800 knot-ft) early in the morning
increasing to fair (15900 knot-ft) in the
afternoon.
TIME (CST) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........18 16 13 11 12 12 13 15 16 17 20 22
Weather cov.....
Weather type....
Temp............37 40 44 48 53 57 60 63 64 64 62 59
RH..............95 92 87 81 75 70 66 64 64 66 71 78
20 FT wind dir..150 160 170 170 170 180 180 180 170 170 160 150
20 FT wind spd..5 5 5 5 6 6 7 7 7 7 6 6
20 FT wind gust.9 9 9 9 10 12 12 12 12 12 12 10
Mix hgt (kft)...0.4 0.5 0.7 0.8 1.1 1.3 1.6 1.6 1.6 1.7 1.2 0.8
Transp wind dir.180 190 200 200 200 200 200 200 200 200 190 180
Transp wind spd.9 8 8 8 8 9 9 10 10 12 12 12
Chc of pcpn (%).0 0 0 0 0 0 0 0 0 0 0 0
Vrate kt-ft/1K..3 4 5 6 8 10 13 14 15 16 12 8
$$
Forecaster...cms
Requested by...Krystal Reddy
Type of request...PRESCRIBED
.TAG 2525766.0/LOT
.DELDT 11/12/25
.FormatterVersion 2.0.0