Spot Forecast
Issued by NWS Chicago, IL
Issued by NWS Chicago, IL
128
FNUS73 KLOT 061322
FWSLOT
Spot Forecast for Northeast Prairie 2...USFS
National Weather Service Chicago IL
822 AM CDT Sun Apr 6 2025
Forecast is based on ignition time of 0900 CDT on April 06.
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...
A surface high will continue to build into the area today
resulting in rain-free conditions. Dew points this morning will
improve some before deeper mixing commences late morning/early
afternoon allowing us to tap into a plume of drier air moving
inland from Lake Michigan and thus lowering RH values into the
30-35% range. Winds will generally be out of the northeast today
with speeds around 5-10 mph but directions will become more
southwesterly this evening as the high pivots overhead.
An upper disturbance will swing through the area on Monday with
an associated cold front bringing with it a period of scattered
snow showers during the morning and early afternoon hours. Though
little to no accumulation is expected aside from a dusting on
grassy surfaces. Temperatures ahead of the front may briefly warm
into the mid to upper 30, but will cool through the day with
temperatures forecast to be in the upper 20s by Monday evening.
Winds behind the front will also become gusty out of the northwest
with speeds sustained at 15-20 mph and gusts up to 30 mph.
.REST OF TODAY...
Sky/weather.........Partly cloudy.
Temperature.........40 at ignition...Max 50.
RH..................62 percent at ignition...Min 33 percent.
Wind (20 ft)........Winds northeast at 9 mph at
ignition...otherwise Northeast winds 6 to 9 mph
decreasing to around 5 mph late in the
afternoon.
Chance of pcpn......0 percent.
Transport winds.....Northeast 12 to 16 mph decreasing to 7 to 10
mph late in the afternoon.
Mixing height.......2100 ft AGL at ignition...otherwise 5100 ft
AGL.
Smoke dispersal.....Fair /29400 knot-ft/ at ignition. Max...good
/51600 knot-ft/.
TIME (CDT) 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........64 60 59 59 58 57 56 55 55
Weather cov.....
Weather type....
Temp............40 42 44 46 47 48 49 50 50
RH..............62 57 53 49 45 42 37 34 33
20 FT wind dir..040 050 050 040 040 040 020 020 040
20 FT wind spd..9 10 10 10 10 9 7 6 5
20 FT wind gust.14 15 16 16 15 14 12 9 8
Mix hgt (kft)...2.1 3.0 4.0 4.3 4.7 5.0 5.1 5.0 4.8
Transp wind dir.040 050 050 040 040 040 020 020 040
Transp wind spd.16 16 15 13 12 10 8 8 7
Chc of pcpn (%).0 0 0 0 0 0 0 0 0
Vrate kt-ft/1K..29 43 52 49 47 45 38 33 29
.TONIGHT...
Sky/weather.........Partly cloudy then becoming clear.
Temperature.........Min 34.
RH..................Max 78 percent.
Wind (20 ft)........Southeast winds around 5 mph shifting to the
southwest 5 to 8 mph in the late evening and
overnight.
Chance of pcpn......0 percent.
Transport winds.....Southeast 6 to 7 mph shifting to the south 7 to
12 mph late in the evening, then shifting to
the southwest 13 to 16 mph overnight.
Mixing height.......400 ft AGL.
Smoke dispersal.....Fair (20800 knot-ft) early in the evening
decreasing to poor (2400 knot-ft) late in the
night.
TIME (CDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........55 55 47 39 32 24 16 8 9 9 10 20
Weather cov.....
Weather type....
Temp............49 46 43 40 38 37 36 35 35 35 34 34
RH..............34 40 47 55 62 64 69 72 72 75 78 78
20 FT wind dir..100 130 140 170 180 190 200 210 210 220 220 230
20 FT wind spd..5 5 5 5 5 6 7 8 8 9 9 9
20 FT wind gust.6 6 6 7 8 9 9 10 12 14 15 16
Mix hgt (kft)...3.9 0.5 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.5 0.5
Transp wind dir.100 130 140 170 180 190 200 210 210 220 220 230
Transp wind spd.6 6 7 7 8 9 12 13 13 15 16 16
Chc of pcpn (%).0 0 0 0 0 0 0 0 0 0 0 0
Vrate kt-ft/1K..21 2 2 3 3 3 4 4 4 5 6 7
.MONDAY...
Sky/weather.........Mostly sunny then becoming mostly cloudy. Scattered
rain showers in the morning. Scattered snow
showers through the day.
Temperature.........Max 40.
RH..................Min 52 percent.
Wind (20 ft)........West winds 8 to 9 mph increasing to northwest
12 to 14 mph early in the morning, then
shifting to the north 14 to 17 mph with gusts
to around 29 mph in the late morning and
afternoon.
Chance of pcpn......50 percent.
Transport winds.....West 16 to 18 mph shifting to the north 20 to
24 mph in the late morning and afternoon.
Mixing height.......5600 ft AGL.
Smoke dispersal.....Poor (8700 knot-ft) early in the morning
increasing to excellent (102200 knot-ft) in the
afternoon.
TIME (CDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........30 40 53 67 80 74 67 61 64 67 70 67
Weather cov..... ISO ISO ISO SCT SCT SCT ISO ISO ISO ISO ISO
Weather type.... SW SW SW RS RS SW SW SW SW SW SW
Temp............35 36 37 38 39 40 40 40 40 39 39 38
RH..............78 75 75 76 73 64 59 55 52 54 54 54
20 FT wind dir..250 260 290 330 350 000 000 010 010 010 020 020
20 FT wind spd..9 10 13 15 17 18 18 18 17 16 15 15
20 FT wind gust.16 17 20 23 25 28 29 29 29 26 25 24
Mix hgt (kft)...0.6 0.7 1.6 2.7 3.2 4.2 5.0 5.4 5.5 5.6 5.6 4.6
Transp wind dir.250 260 290 330 350 000 000 010 010 010 020 020
Transp wind spd.16 16 18 22 24 23 23 22 20 20 21 20
Chc of pcpn (%).0 20 20 20 50 50 50 20 20 20 20 20
Vrate kt-ft/1K..9 10 25 50 67 85 98 102 93 95 100 76
$$
Forecaster...Yack
Requested by...Brian Wolvert
Type of request...PRESCRIBED
.TAG 2508980.0/LOT
.DELDT 04/06/25
.FormatterVersion 2.0.0