Text Products for FWS Issued by ARX

Spot Forecast
Issued by NWS La Crosse, WI
Versions: 1 2 3 4 5
000
FNUS73 KARX 201731
FWSARX

Spot Forecast for Hcn DNR/ BIA Rx...Hcn dnr
National Weather Service La Crosse WI
1231 PM CDT Sat Apr 20 2024

Forecast is based on ignition time of 1300 CDT on April 20.
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...Breezy northwest winds will continue this afternoon
with gusts to around 20 mph possible at times. This will allow for
excellent smoke dispersal. Otherwise cloudy skies persist the
rest of the day with cool temperatures keeping minimum humidity in
check this afternoon. There is a small chance for a few sprinkles
through late afternoon, but no wetting rains expected. Skies will
gradually clear tonight with freezing temperatures expected as
winds and mixing diminish. Sunday will bring sunny skies, warmer
temperatures, and deep mixing that will produce low afternoon
relative humidity, bottoming out in the 25 to 30 percent range.

.REST OF TODAY...

Sky/weather.........Cloudy (90-100 percent). Chance of sprinkles
                    late in the afternoon.
CWR.................10 percent.
Temperature.........40 at ignition...Max 44.
RH..................48 percent at ignition...Min 43 percent.
Wind (20 ft)........Winds northwest at 9 mph at
                    ignition...otherwise Northwest winds 9 to 12
                    mph.
Mixing height.......5300 ft AGL at ignition...otherwise 5400 ft
                    AGL.
Transport winds.....Northwest 20 to 21 mph.
Smoke dispersal.....Excellent /94900 knot-ft/ at ignition.
                    Max...excellent /97600 knot-ft/.
Haines Index........3 or very low potential for large plume
                    dominated fire growth at ignition...max 3.

TIME (CDT)      1PM 2PM 3PM 4PM 5PM
Sky (%).........95  95  94  94  94
Weather cov.....    CHC CHC CHC CHC
Weather type....    RW  RW  RW  RW
Tstm cov........
CWR.............10  10  10  10  10
Temp............40  43  44  44  44
RH..............48  43  43  43  43
20 FT wind dir..NW  NW  NW  NW  NW
20 FT wind spd..9   12  12  12  12
20 FT wind gust.14  18  18  18  18
Mix hgt (kft)...5.3 5.4 5.1 5.2 5.2
Transp wind dir.NW  NW  NW  NW  NW
Transp wind spd.21  21  21  21  20
Haines index....3   3   3   3   3
SDspl kt-ft/100095  98  93  94  88

.TONIGHT...

Sky/weather.........Mostly cloudy (70-80 percent) then becoming
                    partly cloudy (25-35 percent) then becoming
                    clear (0-10 percent). Chance of sprinkles early
                    in the evening. Widespread frost after 3 am.
CWR.................10 percent.
Temperature.........Min 28.
RH..................Max 78 percent.
Wind (20 ft)........West winds 5 to 11 mph.
Mixing height.......4900 ft AGL decreasing to 400 ft AGL.
Transport winds.....West 12 to 21 mph.
Smoke dispersal.....Excellent (87600 knot-ft) early in the evening
                    decreasing to poor (4000 knot-ft) late in the
                    night.
Haines Index........3 to 4 or very low to low potential for large
                    plume dominated fire growth.

TIME (CDT)      6 PM   8 PM   10 PM  MIDNGT 2 AM   4 AM
Sky (%).........93     90     66     50     17     11
Weather cov.....CHANCE CHANCE                      WIDSPD
Weather type....RNSHWR RNSHWR NONE   NONE   NONE   FROST
Tstm cov........
CWR.............10     10     0      0      0      0
Temp............44     40     37     33     31     29
RH..............43     50     56     66     69     75
20 ft wind......NW 11  W 9    W 6    W 6    W 6    W 5
20 ft wind gust.16     15     11     9      11     11
Mix hgt (ft)....4900   600    500    500    500    400
Transport wind..NW 21  W 13   W 12   W 12   W 13   NW 12
Haines index....3      4      4      4      4      4
SDspl kt-ft/100088     6      5      5      5      4

.SUNDAY...

Sky/weather.........Sunny (0-10 percent).
CWR.................0 percent.
Temperature.........Max 59.
RH..................Min 28 percent.
Wind (20 ft)........West winds 5 to 12 mph.
Mixing height.......1800 ft AGL increasing to 6700 ft AGL.
Transport winds.....West 12 to 21 mph shifting to the northwest 22
                    to 24 mph late in the morning.
Smoke dispersal.....Poor (4200 knot-ft) early in the morning
                    increasing to excellent (132500 knot-ft) in the
                    afternoon.
Haines Index........4 or low potential for large plume dominated
                    fire growth.

TIME (CDT)      6 AM   8 AM   10 AM  NOON   2 PM   4 PM
Sky (%).........0      2      1      4      12     12
Weather cov.....
Weather type....NONE   NONE   NONE   NONE   NONE   NONE
Tstm cov........
CWR.............0      0      0      0      0      0
Temp............28     36     47     53     57     59
RH..............78     61     45     35     30     28
20 ft wind......W 5    W 7    W 10   NW 12  NW 12  NW 12
20 ft wind gust.9      13     15     18     19     18
Mix hgt (ft)....400    1000   3500   5400   6400   6700
Transport wind..W 12   W 15   NW 21  NW 23  NW 23  NW 22
Haines index....4      4      4      4      4      4
SDspl kt-ft/10004      13     62     107    129    127

$$
Forecaster...MK
Requested by...Isaiah Funmaker
Type of request...PRESCRIBED
.TAG 2411513.0/ARX
.DELDT 04/20/24
.FormatterVersion 2.0.0
.EMAIL Isaiah.funmaker@ho-chunk.com
National Weather Service Weather Forecast Office
