227
FNUS73 KARX 151701
FWSARX

Spot Forecast for Preston North Subunit A...The Nature Conservancy
National Weather Service La Crosse WI
1201 PM CDT Mon Sep 15 2025

Forecast is based on ignition time of 1000 CDT on September 15.
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...UPDATE - a mix of microscale weather elements have
resulted in lines/scattered showers-storms across western WI,
oriented north-south. Expect this to continue into mid afternoon.
However, east of there latest satellite imagery shows a decrease
in clouds - indicating sinking area and/or some drying of the
airmass. Unless the convection can push an outflow boundary
farther east, the threat for showers/storms near your burn
location continues to be low to none. We will continue to keep a
close eye on trends through the afternoon. If you have anymore
questions, please give us a call.

.REST OF TODAY...

Sky/weather.........Sunny (10-20 percent).
CWR.................0 percent.
Chance of thunder...0 percent.
Temperature.........72 at ignition...Max 83.
RH..................68 percent at ignition...Min 51 percent.
Wind (20 ft)........Winds southeast at 2 mph at
                    ignition...otherwise Light winds becoming
                    southeast 5 to 7 mph in the afternoon.
Mixing height.......1200 ft AGL at ignition...otherwise 3100 ft AGL
                    increasing to 3300 ft AGL late in the
                    afternoon.
Transport winds.....South 13 to 14 mph.
Smoke dispersal.....Fair /13900 knot-ft/ at ignition. Max...good
                    /40000 knot-ft/.

TIME (CDT)      10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........11  9   13  16  14  9   14  13
Weather cov.....
Weather type....
Tstm cov........
CWR.............0   0   0   0   0   0   0   10
Chc of thdr (%).0   0   0   0   0   0   0   0
Temp............72  76  78  79  81  81  82  81
RH..............68  60  57  54  51  53  51  53
20 FT wind dir..SE  S   SE  SE  SE  SE  SE  SE
20 FT wind spd..2   4   5   6   7   7   6   5
20 FT wind gust.13  13  14  14  14  14  14  14
Mix hgt (kft)...1.2 1.6 2.2 2.7 3.1 3.3 3.3 2.9
Transp wind dir.S   S   S   S   S   S   S   S
Transp wind spd.14  13  14  14  14  14  14  13
SDspl kt-ft/100014  18  27  32  37  40  39  32

.TONIGHT...

Sky/weather.........Partly cloudy (25-35 percent). Slight chance of
                    showers and thunderstorms early in the evening.
CWR.................20 percent decreasing to 10 percent.
Chance of thunder...17 percent.
Temperature.........Min 59.
RH..................Max 90 percent.
Wind (20 ft)........Southeast winds around 5 mph early in the
                    evening becoming light. Gusty and erratic winds
                    expected near thunderstorms early in the
                    evening.
Mixing height.......400 ft AGL.
Transport winds.....Southeast 9 to 12 mph.
Smoke dispersal.....Poor (3600 knot-ft).

TIME (CDT)      6 PM   8 PM   10 PM  MIDNGT 2 AM   4 AM
Sky (%).........14     40     37     29     37     45
Weather cov.....S CHC
Weather type....RNSHWR NONE   NONE   NONE   NONE   NONE
Tstm cov........S CHC
CWR.............20     10     0      0      10     10
Chc of thdr (%).20     10     0      0      10     10
Temp............79     71     66     63     62     61
RH..............58     76     84     87     84     84
20 ft wind......SE 5   SE 3   SE 3   SE 2   SE 2   SE 2
20 ft wind gust.13     11     11     8      7      7
Mix hgt (ft)....800    400    400    400    400    400
Transport wind..SE 12  SE 10  SE 12  S 10   S 10   SE 9
SDspl kt-ft/10008      4      5      4      4      4

.TUESDAY...

Sky/weather.........Mostly sunny (25-35 percent). Slight chance of
                    rain showers early in the afternoon.
CWR.................10 percent increasing to 20 percent early in
                    the afternoon, then decreasing to 10 percent
                    late in the afternoon.
Chance of thunder...13 percent.
Temperature.........Max 84.
RH..................Min 51 percent.
Wind (20 ft)........Light winds.
Mixing height.......1500 ft AGL increasing to 4100 ft AGL in the
                    afternoon.
Transport winds.....South 6 to 8 mph.
Smoke dispersal.....Poor (2200 knot-ft) early in the morning
                    increasing to fair (24400 knot-ft) in the
                    afternoon.

TIME (CDT)      6 AM   8 AM   10 AM  NOON   2 PM   4 PM
Sky (%).........37     31     26     23     26     29
Weather cov.....                            S CHC
Weather type....NONE   NONE   NONE   NONE   RNSHWR NONE
Tstm cov........
CWR.............10     10     10     10     20     10
Chc of thdr (%).10     10     10     10     10     10
Temp............59     62     72     78     82     84
RH..............90     90     71     60     53     51
20 ft wind......SE 2   SE 2   S 2    S 3    S 3    S 3
20 ft wind gust.6      6      7      8      8      8
Mix hgt (ft)....400    400    900    2400   3500   4100
Transport wind..SE 8   S 7    S 7    S 7    S 7    S 7
SDspl kt-ft/10003      2      6      14     21     24

$$
Forecaster...TR
Requested by...John Schwingel
Type of request...PRESCRIBED
.TAG 2521965.0/ARX
.DELDT 09/15/25
.FormatterVersion 2.0.0
.EMAIL john.schwingel@tnc.org