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000
FNUS73 KMKX 251239
FWSMKX

Spot Forecast for La Grange Core...WI DNR
National Weather Service Milwaukee/Sullivan WI
739 AM CDT Thu Apr 25 2024

Forecast is based on ignition time of 1100 CDT on April 25.

Please contact the National Weather Service if conditions become
unrepresentative or if you have questions/concerns about this forecast.

.DISCUSSION...

Temperatures in the upper 30s at ignition should rise quickly
into the middle 50s by midday and into the upper 50s this
afternoon. Light southeast 20 foot winds at ignition will
gradually increase later this morning but remain in the 5 to 9 MPH
range into this afternoon. Relative humidity values around 60
percent at ignition will quickly drop to around 33 percent by
midday and to 28 percent by middle afternoon. It could drop to as
low as 20 percent this afternoon.

Poor smoke dispersal values at ignition will quickly become good
by midday into this afternoon. Low mixing heights at ignition will
quickly rise above 4000 feet AGL by midday into this afternoon.

.REST OF TODAY...

Sky/weather.........Sunny (0-10 percent).
Temperature.........51 at ignition...Max 58.
RH..................34 percent at ignition...Min 27 percent.
Wind (20 ft)........Winds southeast at 6 mph at
                    ignition...otherwise Southeast winds 6 to 9
                    mph.
Mixing height.......2900 ft AGL at ignition...otherwise 4800 ft
                    AGL.
Transport winds.....Southeast 9 to 13 mph.
Smoke dispersal.....Fair /23000 knot-ft/ at ignition. Max...good
                    /47000 knot-ft/.
Haines Index........5 or moderate potential for large plume
                    dominated fire growth at ignition...max 5.

TIME (CDT)      11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........9   7   5   6   7   8   9
Weather cov.....
Weather type....
Tstm cov........
Temp............51  53  56  57  57  58  57
RH..............34  32  29  28  28  28  30
20 FT wind dir..SE  SE  SE  SE  SE  E   E
20 FT wind spd..6   6   6   7   8   9   9
20 FT wind gust.7   10  10  11  11  11  11
Mix hgt (kft)...2.9 4.0 4.4 4.7 4.8 4.5 4.0
Transp wind dir.SE  E   E   SE  SE  E   E
Transp wind spd.9   10  12  12  10  12  13
Haines index....5   5   5   5   5   5   5
SDspl kt-ft/100023  36  44  47  43  45  44

.TONIGHT...

Sky/weather.........Mostly clear (20-30 percent).
Temperature.........Min 37.
RH..................Max 82 percent.
Wind (20 ft)........Southeast winds 7 to 10 mph. Gusts up to 21 mph
                    after 3 am.
Mixing height.......400 ft AGL.
Transport winds.....East 13 to 18 mph.
Smoke dispersal.....Good (38400 knot-ft) early in the evening
                    decreasing to poor (4800 knot-ft) late in the
                    night.
Haines Index........4 to 5 or low to moderate potential for large
                    plume dominated fire growth.

TIME (CDT)      6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........11  12  11  11  10  10  10  10  16  23  29  37
Weather cov.....
Weather type....
Tstm cov........
Temp............56  54  48  45  42  41  40  40  39  39  39  38
RH..............32  36  47  55  65  67  73  76  76  76  79  79
20 FT wind dir..E   E   E   E   E   E   SE  SE  SE  SE  SE  SE
20 FT wind spd..9   8   8   7   7   7   7   7   8   8   9   10
20 FT wind gust.11  11  10  10  10  10  11  13  14  14  16  17
Mix hgt (kft)...3.2 0.9 0.4 0.4 0.4 0.4 0.4 0.4 0.5 0.5 0.5 0.6
Transp wind dir.E   E   E   E   E   E   E   E   SE  SE  SE  SE
Transp wind spd.14  14  13  14  14  14  14  15  16  17  16  18
Haines index....5   5   5   5   5   5   5   4   4   4   4   4
SDspl kt-ft/100038  11  5   5   5   5   5   6   6   7   8   9

.FRIDAY...

Sky/weather.........Partly sunny (60-70 percent) then becoming
                    cloudy (90-100 percent). Rain showers likely
                    early in the afternoon. Rain showers late in
                    the afternoon.
Temperature.........Max 59.
RH..................Min 44 percent.
Wind (20 ft)........Southeast winds 10 to 16 mph. Gusts up to 30
                    mph increasing to 31 mph late in the afternoon.
Mixing height.......2000 ft AGL.
Transport winds.....Southeast 18 to 26 mph increasing to around 28
                    mph in the afternoon.
Smoke dispersal.....Poor (9500 knot-ft) early in the morning
                    increasing to good (48700 knot-ft) in the
                    afternoon.
Haines Index........4 or low potential for large plume dominated
                    fire growth.

TIME (CDT)      6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........46  54  62  70  78  83  87  92  92  92  92  94
Weather cov.....                            LKY LKY LKY DEF DEF
Weather type....                            RW  RW  RW  RW  RW
Tstm cov........
Temp............39  40  44  49  52  55  57  58  58  58  57  57
RH..............76  70  65  58  54  49  47  45  47  49  55  59
20 FT wind dir..SE  SE  SE  SE  SE  SE  SE  SE  SE  SE  SE  SE
20 FT wind spd..10  11  12  13  14  14  15  15  15  16  16  16
20 FT wind gust.17  18  18  20  21  22  22  23  23  24  25  25
Mix hgt (kft)...0.6 0.6 1.1 1.3 1.6 1.8 1.9 2.0 1.9 1.7 1.6 1.4
Transp wind dir.SE  SE  SE  SE  SE  SE  SE  SE  SE  SE  SE  SE
Transp wind spd.18  18  24  25  25  25  26  28  28  28  28  28
Haines index....4   4   4   4   4   4   4   4   4   4   4   4
SDspl kt-ft/100010  10  24  29  34  40  44  49  45  42  38  34

$$
Forecaster...Cronce
Requested by...duerkop
Type of request...PRESCRIBED
.TAG 2412427.0/MKX
.DELDT 04/25/24
.FormatterVersion 2.0.0
.EMAIL peter.duerkop@wisconsin.gov