Spot Forecast
Issued by NWS La Crosse, WI

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Spot Forecast for Merrick Prairies...Wisconsin DNR
National Weather Service La Crosse WI
323 AM CDT Tue Aug 26 2025

Forecast is based on ignition time of 1200 CDT on August 26.
If conditions become unrepresentative...contact the National Weather
Service.

Please contact our office at (608) 784-8292 if you have questions
or concerns with this forecast.

.DISCUSSION...A weak front will move southeast through the area
today. This will provide a chance for scattered sprinkles this
afternoon. The temperatures will be in the mid-60s at ignition and
them warm into the lower 70s for this afternoon. Relative humidities
will be in the mid-50s at ignition and then fall into the lower 50s
this afternoon. Winds will be light southwest. There may be a few
wind gusts around 10 mph this afternoon. Smoke dispersal will be good.

On Wednesday, it will be mostly to partly sunny. High temperatures
will be in the mid-70s. Afternoon relative humidities will be in
the 50s. The winds will be light southerly in the morning and
southwest at 5 to 10 mph in the afternoon. There may be a few
afternoon gusts in the 10 to 15 mph range. Smoke dispersal will be
poor at ignition and then quickly become good.

.REST OF TODAY...

Sky/weather.........Partly Sunny (20-35 percent). Chance of sprinkles
                    this afternoon.
CWR.................10 percent.
Chance of thunder...0 percent.
Temperature.........64 at ignition...Max 71.
RH..................57 percent at ignition...Min 52 percent.
Wind (20 ft)........Winds northwest at 4 mph at
                    ignition...otherwise Light winds.
Mixing height.......4800 ft AGL at ignition...otherwise 5500 ft
                    AGL.
Transport winds.....Northwest 10 to 12 mph.
Smoke dispersal.....Good /43200 knot-ft/ at ignition. Max...good
                    /54900 knot-ft/.

TIME (CDT)      7AM 8AM 9AM 10A 11A 12P
Sky (%).........13  26  35  30  10  13
Weather cov.....    CHC CHC CHC CHC
Weather type....    RW  RW  RW  RW
Tstm cov........
CWR.............10  10  10  10  10  0
Chc of thdr (%).0   0   0   0   0   0
Temp............64  67  68  69  69  70
RH..............57  55  52  52  52  52
20 FT wind dir..NW  NW  NW  NW  NW  NW
20 FT wind spd..4   4   4   4   4   3
20 FT wind gust.9   11  11  11  11  9
Mix hgt (kft)...4.8 5.2 5.4 5.5 5.3 5.1
Transp wind dir.NW  NW  NW  NW  NW  NW
Transp wind spd.10  10  12  12  12  12
SDspl kt-ft/100043  47  54  55  53  51

.TONIGHT...

Sky/weather.........Mostly clear (10-20 percent).
CWR.................0 percent.
Chance of thunder...0 percent.
Temperature.........Min 52.
RH..................Max 85 percent.
Wind (20 ft)........Light winds.
Mixing height.......3800 ft AGL decreasing to 700 ft AGL.
Transport winds.....Northwest 5 to 10 mph shifting to the southwest
                    5 to 9 mph in the late evening and overnight.
Smoke dispersal.....Good (34300 knot-ft) early in the evening
                    decreasing to poor (2800 knot-ft) late in the
                    night.

TIME (CDT)      1PM 2PM 3PM 4PM 5PM 6PM 7PM 8PM 9PM 10P 11P MID
Sky (%).........14  20  11  12  13  9   13  9   7   9   5   7
Weather cov.....
Weather type....
Tstm cov........
CWR.............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............69  67  65  62  60  58  57  57  56  55  54  54
RH..............55  61  64  70  75  80  83  80  83  83  85  84
20 FT wind dir..NW  NW  W   SW  SW  SW  S   S   S   S   S   S
20 FT wind spd..2   2   2   2   2   2   3   3   3   3   4   4
20 FT wind gust.7   5   5   5   5   5   5   5   5   5   6   6
Mix hgt (kft)...3.8 0.8 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7
Transp wind dir.NW  NW  W   SW  SW  SW  SW  SW  SW  SW  SW  SW
Transp wind spd.10  6   5   5   5   6   7   7   7   8   8   9
SDspl kt-ft/100034  4   3   3   3   4   4   4   4   5   5   6

.WEDNESDAY...

Sky/weather.........Mostly Sunny (15-25 percent).
CWR.................10 percent.
Chance of thunder...9 percent.
Temperature.........Max 75.
RH..................Min 56 percent.
Wind (20 ft)........Light winds becoming southwest 5 to 7 mph in
                    the late morning and afternoon.
Mixing height.......2100 ft AGL increasing to 3900 ft AGL late in
                    the morning.
Transport winds.....Southwest 8 to 16 mph.
Smoke dispersal.....Poor (4800 knot-ft) early in the morning
                    increasing to good (54000 knot-ft) in the
                    afternoon.

TIME (CDT)      1AM 2AM 3AM 4AM 5AM 6AM 7AM 8AM 9AM 10A 11A 12P
Sky (%).........6   7   6   15  22  35  32  29  29  29  29  31
Weather cov.....
Weather type....
Tstm cov........
CWR.............0   0   0   0   0   0   0   10  10  10  10  10
Chc of thdr (%).0   0   0   0   0   0   0   10  10  10  10  10
Temp............53  52  56  60  66  68  70  73  73  74  75  74
RH..............84  88  83  76  66  63  61  56  57  57  58  63
20 FT wind dir..S   S   S   S   SW  SW  SW  SW  SW  SW  SW  SW
20 FT wind spd..4   4   4   5   5   6   6   7   7   7   7   6
20 FT wind gust.7   8   9   11  13  14  14  14  14  14  14  14
Mix hgt (kft)...0.7 0.7 0.8 1.3 2.1 2.7 3.3 3.9 3.9 3.9 3.9 3.0
Transp wind dir.SW  SW  SW  SW  SW  SW  SW  SW  SW  SW  SW  SW
Transp wind spd.8   9   8   12  15  16  16  16  15  15  14  13
SDspl kt-ft/10005   6   6   13  27  38  46  54  50  50  47  33

$$
Forecaster...JSB
Requested by...Terry Shaurette
Type of request...PRESCRIBED
.TAG 2520671.0/ARX
.DELDT 08/26/25
.FormatterVersion 2.0.0
.EMAIL terrance.shaurette@wisconsin.gov,MarkA.Rasmussen@wisconsin.gov