Text Products for FWS Issued by ARX

Spot Forecast
Issued by NWS La Crosse, WI
Versions: 1 2 3 4 5 6 7 8 9 10 11 12 13
000
FNUS73 KARX 251051
FWSARX

Spot Forecast for Brice Prairie South...US FISH AND WILDLIFE SERVICE
National Weather Service La Crosse WI
551 AM CDT Thu Apr 25 2024

Forecast is based on ignition time of 1000 CDT on April 25.
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...
High pressure overhead today resulting in sunny skies and dry
conditions. An approaching weather system to our west will help to
increase southeasterly winds today. With lighter winds in the
morning, fair smoke dispersal is expected. Minimum relative humidity
values in the afternoon will be around 30 percent. Winds will also
increase overnight into Friday as the system gets closer. Wet and
windy conditions for Friday are expected.

.TODAY...

Sky/weather.........Sunny (15-25 percent).
CWR.................0 percent.
Temperature.........48 at ignition...Max 63.
RH..................54 percent at ignition...Min 32 percent.
Wind (20 ft)........Winds south at 8 mph at ignition...otherwise
                    Southeast winds 5 to 9 mph.
Mixing height.......1400 ft AGL at ignition...otherwise 2100 ft AGL
                    increasing to 4600 ft AGL in the afternoon.
Transport winds.....South 10 to 16 mph.
Smoke dispersal.....Fair /17300 knot-ft/ at ignition.
                    Max...excellent /64700 knot-ft/.
Haines Index........4 or low potential for large plume dominated
                    fire growth at ignition...max 5.

TIME (CDT)      10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........20  19  19  18  16  13  12  17
Weather cov.....
Weather type....
Tstm cov........
CWR.............0   0   0   0   0   0   0   0
Temp............48  51  54  57  58  60  61  62
RH..............54  50  45  38  37  35  33  32
20 FT wind dir..S   S   S   S   S   SE  SE  SE
20 FT wind spd..8   9   9   9   9   9   9   9
20 FT wind gust.13  13  14  14  14  14  14  15
Mix hgt (kft)...1.4 2.1 3.0 4.0 4.5 4.6 4.6 4.6
Transp wind dir.S   S   S   S   S   S   S   S
Transp wind spd.14  14  14  15  15  15  15  16
Haines index....4   4   4   5   5   5   5   5
SDspl kt-ft/100017  25  36  52  59  60  60  65

.TONIGHT...

Sky/weather.........Partly cloudy (25-35 percent) then becoming
                    mostly cloudy (55-65 percent).
CWR.................10 percent.
Temperature.........Min 42.
RH..................Max 65 percent.
Wind (20 ft)........Southeast winds 9 to 15 mph.
Mixing height.......3900 ft AGL decreasing to 500 ft AGL.
Transport winds.....Southeast 15 to 17 mph.
Smoke dispersal.....Good (59000 knot-ft) early in the evening
                    decreasing to poor (6100 knot-ft) late in the
                    night.
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 (%).........18     20     23     27     52     61
Weather cov.....
Weather type....NONE   NONE   NONE   NONE   NONE   NONE
Tstm cov........
CWR.............0      0      0      0      0      10
Temp............63     58     52     50     47     45
RH..............30     37     46     52     58     65
20 ft wind......SE 10  SE 9   SE 11  SE 11  SE 13  SE 13
20 ft wind gust.15     14     16     18     20     21
Mix hgt (ft)....3900   500    500    600    600    600
Transport wind..S 17   SE 15  SE 15  SE 17  SE 17  SE 16
Haines index....5      5      5      5      4      4
SDspl kt-ft/100059     7      6      9      9      9

$$
Forecaster...DB
Requested by...Ben Halverson
Type of request...PRESCRIBED
.TAG 2412397.0/ARX
.DELDT 04/25/24
.FormatterVersion 2.0.0
.EMAIL benjamin_halverson@fws.gov
National Weather Service Weather Forecast Office
