304
FNUS73 KARX 281046
FWSARX

Spot Forecast for Silver Creek NW Rx...Wisconsin DNR
National Weather Service La Crosse WI
546 AM CDT Sat Sep 28 2024

Forecast is based on ignition time of 1000 CDT on September 28.
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...It will be sunny with afternoon humidities in the mid-30s.
Winds will be northeast (from 45 degrees) at 5 to 10 mph with wind gusts
of 10 to 15 mph. Similar conditions are expected on Sunday, but the winds
will be east northeast (from 60 degrees). Smoke dispersion will start
as fair to poor and then quickly improve to good.

.TODAY...

Sky/weather.........Sunny (0-5 percent).
CWR.................0 percent.
Temperature.........67 at ignition...Max 81.
RH..................65 percent at ignition...Min 39 percent.
Wind (20 ft)........Winds northeast at 5 mph.
Mixing height.......1300 ft AGL at ignition...otherwise 2900 ft AGL
                    increasing to 4200 ft AGL in the afternoon.
Transport winds.....Northeast 13 to 16 mph.
Smoke dispersal.....Fair /13900 knot-ft/ at ignition. Max...good
                    /59100 knot-ft/.
Haines Index........5 or moderate potential for large plume
                    dominated fire growth at ignition...max 5.

TIME (CDT)      10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........0   0   1   1   2   0   2   3
Weather cov.....
Weather type....
Tstm cov........
CWR.............0   0   0   0   0   0   0   0
Temp............67  72  74  78  79  80  81  79
RH..............65  53  51  43  42  41  39  42
20 FT wind dir..NE  NE  NE  NE  NE  NE  NE  NE
20 FT wind spd..5   5   5   6   6   6   5   5
20 FT wind gust.11  13  13  14  14  14  14  12
Mix hgt (kft)...1.3 2.1 2.9 3.5 3.6 4.1 4.2 4.1
Transp wind dir.NE  NE  NE  NE  NE  N   N   N
Transp wind spd.13  14  15  15  15  15  16  15
Haines index....5   5   5   4   4   4   4   4
SDspl kt-ft/100014  26  38  45  47  53  59  53

.TONIGHT...

Sky/weather.........Clear (0-10 percent).
CWR.................0 percent.
Temperature.........Min 50.
RH..................Max 100 percent.
Wind (20 ft)........Light winds.
Mixing height.......400 ft AGL.
Transport winds.....Northeast 7 to 10 mph.
Smoke dispersal.....Poor (2700 knot-ft).
Haines Index........4 to 5 or low to moderate potential for large
                    plume dominated fire growth.

TIME (CDT)      6 PM   8 PM   10 PM  MIDNGT 2 AM   4 AM
Sky (%).........2      2      1      5      4      3
Weather cov.....
Weather type....NONE   NONE   NONE   NONE   NONE   NONE
Tstm cov........
CWR.............0      0      0      0      0      0
Temp............78     68     63     59     57     54
RH..............45     68     84     90     90     100
20 ft wind......NE 4   NE 2   NE 2   NE 2   NE 2   NE 2
20 ft wind gust.11     7      6      6      6      7
Mix hgt (ft)....600    400    400    400    400    400
Transport wind..NE 9   NE 7   E 8    E 8    NE 9   NE 10
Haines index....4      4      4      4      5      5
SDspl kt-ft/10005      3      3      3      4      4

.SUNDAY...

Sky/weather.........Sunny (0-10 percent).
CWR.................0 percent.
Temperature.........Max 80.
RH..................Min 38 percent.
Wind (20 ft)........Light winds becoming northeast around 5 mph in
                    the late morning and afternoon, then becoming
                    light late in the afternoon.
Mixing height.......1900 ft AGL increasing to 4000 ft AGL in the
                    afternoon.
Transport winds.....East 10 to 16 mph.
Smoke dispersal.....Poor (3800 knot-ft) early in the morning
                    increasing to good (47500 knot-ft) in the
                    afternoon.
Haines Index........5 or moderate potential for large plume
                    dominated fire growth.

TIME (CDT)      6 AM   8 AM   10 AM  NOON   2 PM   4 PM
Sky (%).........5      0      0      2      3      2
Weather cov.....
Weather type....NONE   NONE   NONE   NONE   NONE   NONE
Tstm cov........
CWR.............0      0      0      0      0      0
Temp............53     55     66     73     77     79
RH..............93     86     58     48     42     38
20 ft wind......NE 2   NE 3   NE 5   NE 5   NE 5   NE 5
20 ft wind gust.8      11     12     13     13     13
Mix hgt (ft)....400    500    1400   2600   3500   4000
Transport wind..NE 10  NE 10  E 15   E 16   E 15   E 14
Haines index....5      5      5      5      5      5
SDspl kt-ft/10004      4      18     36     45     48

$$
Forecaster...JSB
Requested by...Darren Ladwig
Type of request...PRESCRIBED
.TAG 2423141.0/ARX
.DELDT 09/28/24
.FormatterVersion 2.0.0
.EMAIL Darren.Ladwig@wisconsin.gov