854
FNUS73 KARX 020941
FWSARX

Spot Forecast for Preston North 2...The Nature Conservancy
National Weather Service La Crosse WI
441 AM CDT Sat Nov 2 2024

Forecast is based on ignition time of 1000 CDT on November 02.
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...

Look for mostly sunny skies around and after ignition as periods
of high clouds move through the area. Winds will slowly increase
out of the south this morning and become sustained around 5 to 10
mph for the afternoon. Afternoon RH values should fall to around
50 percent. Wetting rains overspread the area after midnight
tonight and persist through the day on Sunday.

.REST OF TODAY...

Sky/weather.........Mostly sunny (25-35 percent).
CWR.................0 percent.
Temperature.........40 at ignition...Max 56.
RH..................82 percent at ignition...Min 50 percent.
Wind (20 ft)........Winds south at 5 mph at ignition...otherwise
                    South winds 5 to 7 mph.
Mixing height.......700 ft AGL at ignition...increasing to 2500
                    ft AGL in the afternoon.
Transport winds.....South 10 to 14 mph.
Smoke dispersal.....Poor /6600 knot-ft/ at ignition. Max...good
                    /30600 knot-ft/.
Haines Index........4 or low potential for large plume dominated
                    fire growth at ignition...max 4.

TIME (CDT)      10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........22  29  37  36  35  36  37  38
Weather cov.....
Weather type....
Tstm cov........
CWR.............0   0   0   0   0   0   0   0
Temp............40  44  49  52  54  54  55  54
RH..............82  70  58  54  50  52  51  52
20 FT wind dir..S   S   S   S   S   S   S   S
20 FT wind spd..5   5   6   7   6   6   6   5
20 FT wind gust.12  13  13  14  14  14  14  14
Mix hgt (kft)...0.7 1.1 1.5 2.0 2.5 2.5 2.4 0.8
Transp wind dir.S   S   S   S   S   S   S   S
Transp wind spd.12  13  14  14  13  14  13  10
Haines index....4   4   4   4   4   4   4   4
SDspl kt-ft/10007   12  18  24  27  31  27  7

.TONIGHT...

Sky/weather.........Partly cloudy (40-50 percent) early then
                    becoming mostly cloudy (75-85 percent).
                    Rain showers becoming likely after 2 am.
CWR.................0 percent increasing to 70 percent overnight.
Temperature.........Min 41.
RH..................Max 86 percent.
Wind (20 ft)........Southeast winds around 5 mph.
Mixing height.......400 ft AGL.
Transport winds.....South 10 to 14 mph.
Smoke dispersal.....Poor (4200 knot-ft).
Haines Index........4 or low potential for large plume dominated
                    fire growth.

TIME (CDT)      6 PM   8 PM   10 PM  MIDNGT 2 AM   4 AM
Sky (%).........39     50     69     95     97     97
Weather cov.....                     S CHC  CHANCE LIKELY
Weather type....NONE   NONE   NONE   RNSHWR RNSHWR RNSHWR
Tstm cov........
CWR.............0      0      0      20     50     70
Temp............51     43     42     43     42     42
RH..............61     82     82     76     79     86
20 ft wind......SE 5   SE 3   SE 4   SE 4   SE 4   SE 6
20 ft wind gust.13     12     12     12     13     14
Mix hgt (ft)....500    400    400    400    500    700
Transport wind..S 10   S 12   S 14   S 14   S 13   SE 13
Haines index....4      4      4      4      4      4
SDspl kt-ft/10004      4      5      5      5      8

.SUNDAY...

Sky/weather.........Cloudy (90-100 percent). Rain showers.
CWR.................100 percent.
Temperature.........Max 51.
RH..................Min 74 percent.
Wind (20 ft)........Southeast winds 8 to 15 mph.
Mixing height.......1700 ft AGL.
Transport winds.....Southeast 15 to 24 mph increasing to 25 to 28
                    mph late in the afternoon.
Smoke dispersal.....Poor (6100 knot-ft) early in the morning
                    increasing to good (41600 knot-ft) in the
                    afternoon.
Haines Index........3 to 4 or very low to low potential for large
                    plume dominated fire growth.

TIME (CDT)      6 AM   8 AM   10 AM  NOON   2 PM   4 PM
Sky (%).........96     97     96     96     96     95
Weather cov.....LIKELY LIKELY LIKELY DEFNTE DEFNTE DEFNTE
Weather type....RNSHWR RNSHWR RNSHWR RNSHWR RNSHWR RNSHWR
Tstm cov........
CWR.............70     60     60     80     100    100
Temp............43     44     48     50     50     50
RH..............82     89     80     77     77     80
20 ft wind......SE 8   SE 9   SE 11  SE 12  SE 13  SE 13
20 ft wind gust.15     18     20     22     23     23
Mix hgt (ft)....500    700    1100   1500   1700   1700
Transport wind..SE 15  SE 16  SE 20  SE 23  SE 24  SE 28
Haines index....4      4      4      4      3      3
SDspl kt-ft/10006      10     18     30     36     42

$$
Forecaster...KS
Requested by...John Schwingel
Type of request...PRESCRIBED
.TAG 2425547.0/ARX
.DELDT 11/02/24
.FormatterVersion 2.0.0
.EMAIL john.schwingel@tnc.org