837
FNUS73 KLOT 171335
FWSLOT

Spot Forecast for Jackson Cr Rx...USFS
National Weather Service Chicago IL
735 AM CST Mon Nov 17 2025

Forecast is based on ignition time of 0900 CST on November 17.
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...

High pressure will remain overhead today which will keep winds
light (speeds <5 mph) and variable through the day. That said,
directions will be out of the north-northwest at ignition and then
transition to a west-southwest by midday before finally settling
into a southeast direction this evening (after 3-4 PM).

Otherwise, expect mostly sunny skies this morning to gradually
become mostly cloudy by this evening. Temperatures will warm into
the upper 40s with RH values dipping into 30-35% range this
afternoon after starting in the 40-45% range at ignition.

Winds will remain easterly tonight through Tuesday with speeds
increasing into the 10-15 mph range Tuesday morning through
Tuesday afternoon. However, a weather system will bring rain to
the area after 11 PM this evening which is expected to persist
through Tuesday morning. Though some rain/drizzle does look to
linger through Tuesday afternoon (30-40% chance).

.REST OF TODAY...

Sky/weather.........Mostly sunny then becoming partly cloudy then
                    becoming mostly cloudy.
Temperature.........37 at ignition...Max 48.
RH..................55 percent at ignition...Min 34 percent.
Wind (20 ft)........Winds north at 0 mph at ignition...otherwise
                    Light winds.
Chance of pcpn......0 percent.
Transport winds.....Northwest around 3 mph shifting to the
                    southwest 2 to 3 mph early in the afternoon,
                    then shifting to the southeast 3 to 5 mph late
                    in the afternoon.
Mixing height.......700 ft AGL at ignition...otherwise 2200 ft AGL.
Smoke dispersal.....Poor /2100 knot-ft/ at ignition. Max...poor
                    /6500 knot-ft/.

TIME (CST)      9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........14  21  37  43  58  63  73  80  89
Weather cov.....
Weather type....
Temp............37  41  44  46  48  48  48  47  46
RH..............55  48  42  37  34  34  34  37  40
20 FT wind dir..000 000 000 250 250 210 150 110 100
20 FT wind spd..0   0   0   1   1   1   1   2   2
20 FT wind gust.
Mix hgt (kft)...0.7 1.2 1.7 2.0 2.1 2.2 2.2 1.1 0.5
Transp wind dir.300 330 340 240 250 210 150 110 100
Transp wind spd.3   3   3   3   2   3   3   3   5
Chc of pcpn (%).0   0   0   0   0   0   0   0   0
Vrate kt-ft/1K..2   4   5   6   5   6   7   3   2

.TONIGHT...

Sky/weather.........Cloudy. Chance of rain in the evening, then
                    rain overnight.
Temperature.........Min 37.
RH..................Max 100 percent.
Wind (20 ft)........Light winds becoming east 9 to 10 mph.
Chance of pcpn......90 percent.
Transport winds.....East 6 to 10 mph increasing to 16 to 20 mph.
Mixing height.......400 ft AGL.
Smoke dispersal.....Poor (2100 knot-ft).

TIME (CST)      6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........98  95  91  76  94  100 100 100 100 100 100 100
Weather cov.....                SCH CHC CHC LKY DEF DEF DEF DEF
Weather type....                RN  RN  RN  RN  RN  RN  RN  RN
Temp............45  44  43  42  42  41  40  40  40  39  39  39
RH..............44  47  52  57  59  62  69  75  83  89  91  93
20 FT wind dir..100 100 100 100 100 100 110 110 110 110 110 110
20 FT wind spd..5   5   5   5   6   6   6   7   8   9   10  10
20 FT wind gust.                                    10  12  13
Mix hgt (kft)...0.4 0.4 0.4 0.4 0.4 0.5 0.5 0.7 0.8 0.7 0.8 0.7
Transp wind dir.100 100 100 100 100 100 110 110 110 110 110 110
Transp wind spd.6   8   9   10  12  10  10  13  14  16  17  20
Chc of pcpn (%).0   0   10  10  20  40  50  70  90  80  80  80
Vrate kt-ft/1K..2   3   4   4   4   4   4   8   9   9   12  12

.TUESDAY...

Sky/weather.........Cloudy. Occasional rain and drizzle in the
                    morning, then chance of rain and drizzle in the
                    afternoon.
Temperature.........Max 42.
RH..................Min 89 percent.
Wind (20 ft)........East winds 9 to 10 mph shifting to the
                    northeast around 8 mph late in the afternoon.
Chance of pcpn......80 percent.
Transport winds.....East 17 to 21 mph becoming northeast 12 to 14
                    mph in the afternoon.
Mixing height.......1400 ft AGL.
Smoke dispersal.....Fair (13100 knot-ft).

TIME (CST)      6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........100 100 100 100 100 100 100 100 100 100 100 100
Weather cov.....OCL OCL OCL OCL OCL OCL CHC CHC CHC CHC CHC CHC
Weather type....RN  RN  RN  RN  RN  RN  RN  RN  RN  RN  RN  RN
Temp............38  38  39  40  41  42  42  42  42  42  42  42
RH..............94  100 100 100 98  97  99  100 100 100 98  98
20 FT wind dir..110 110 100 100 100 090 080 080 070 060 060 050
20 FT wind spd..12  12  12  12  12  12  10  10  10  10  10  9
20 FT wind gust.18  18  18  18  18  17  17  17  17  17  16  15
Mix hgt (kft)...0.9 1.2 1.2 1.2 1.4 1.4 1.4 1.4 1.4 1.4 1.3 1.3
Transp wind dir.110 100 100 100 100 090 080 080 070 060 060 050
Transp wind spd.20  21  21  20  20  17  14  14  13  13  12  12
Chc of pcpn (%).80  80  80  80  80  80  40  40  40  40  40  40
Vrate kt-ft/1K..16  21  21  20  23  21  17  17  16  14  14  13

$$
Forecaster...Yack
Requested by...Strohmeyer
Type of request...PRESCRIBED
.TAG 2526095.0/LOT
.DELDT 11/17/25
.FormatterVersion 2.0.0