Text Products for FWS Issued by ARX

Spot Forecast
Issued by NWS La Crosse, WI
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FNUS73 KARX 132253
FWSARX

Spot Forecast for Pershing Unit "V"...Wisconsin DNR
National Weather Service La Crosse WI
553 PM CDT Sat Apr 13 2024

Forecast is based on ignition time of 1800 CDT on April 13.
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...

Winds slowly decrease this evening and then shift to the
northwest after midnight as a weak front moves through. RH values
currently around 25 to 30 percent rise steadily this evening as
temperatures fall. A stray shower is possible with this frontal
passage tonight, but the better probabilities for rainfall are
northeast of the area. Northwesterly winds increase for the day on
Sunday with gusts up to 20 mph.

.TONIGHT...

Sky/weather.........Partly cloudy (20-30 percent) then becoming
                    clear (0-10 percent). Slight chance of rain
                    showers late in the evening.
CWR.................10 percent increasing to 20 percent late in the
                    evening, then decreasing to 10 percent
                    overnight.
Temperature.........68 at ignition...Min 44.
RH..................32 percent at ignition...Max 89 percent.
Wind (20 ft)........Winds south at 12 mph at ignition...otherwise
                    South winds 7 to 12 mph shifting to the
                    northwest 5 to 6 mph overnight, then shifting
                    to the north around 5 mph after 3 am.
Mixing height.......2900 ft AGL at ignition...decreasing to 400 ft AGL.
Transport winds.....Southwest 14 to 23 mph shifting to the south 12
                    to 15 mph early in the evening, then shifting
                    to the north 8 to 10 mph overnight.
Smoke dispersal.....Good /57000 knot-ft/ at ignition. Min...poor
                    /2700 knot-ft/.
Haines Index........4 or low potential for large plume dominated
                    fire growth at ignition...max 5.

TIME (CDT)      6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........31  44  41  37  33  31  28  26  18  10  2   4
Weather cov.....            SCH SCH SCH
Weather type....            RW  RW  RW
Tstm cov........
CWR.............10  10  10  20  20  20  10  10  10  10  10  0
Temp............68  67  64  61  59  57  55  54  52  50  47  46
RH..............32  36  45  53  60  67  72  77  77  80  86  89
20 FT wind dir..S   S   S   S   S   S   SW  NW  N   N   N   N
20 FT wind spd..12  11  9   8   9   9   7   6   6   5   5   5
20 FT wind gust.20  18  16  15  15  14  13  11  11  9   9   9
Mix hgt (kft)...2.9 0.8 0.6 0.5 0.5 0.5 0.4 0.4 0.4 0.4 0.4 0.4
Transp wind dir.SW  SW  S   S   S   S   SW  NW  N   N   N   N
Transp wind spd.23  14  12  14  15  13  12  10  9   9   9   8
Haines index....4   4   4   4   4   4   4   5   5   5   5   5
SDspl kt-ft/100057  10  6   6   7   5   5   4   4   3   4   3

.SUNDAY...

Sky/weather.........Sunny (0-10 percent).
CWR.................0 percent.
Temperature.........Max 69.
RH..................Min 28 percent.
Wind (20 ft)........Northwest winds 5 to 12 mph.
Mixing height.......2000 ft AGL increasing to 7200 ft AGL.
Transport winds.....North 10 to 18 mph shifting to the northwest 20
                    to 25 mph in the late morning and afternoon.
Smoke dispersal.....Poor (3900 knot-ft) early in the morning
                    increasing to excellent (147900 knot-ft) in the
                    afternoon.
Haines Index........4 to 5 or low to moderate potential for large
                    plume dominated fire growth.

TIME (CDT)      6 AM   8 AM   10 AM  NOON   2 PM   4 PM
Sky (%).........6      8      8      3      2      5
Weather cov.....
Weather type....NONE   NONE   NONE   NONE   NONE   NONE
Tstm cov........
CWR.............0      0      0      0      0      0
Temp............46     48     59     66     69     69
RH..............83     77     53     37     31     28
20 ft wind......NW 5   NW 7   NW 10  NW 11  NW 12  NW 12
20 ft wind gust.11     13     15     16     18     19
Mix hgt (ft)....400    600    2000   4600   6500   7200
Transport wind..N 10   N 12   NW 20  NW 23  NW 24  NW 23
Haines index....5      5      5      5      4      4
SDspl kt-ft/10004      6      35     92     137    144

.SUNDAY NIGHT...

Sky/weather.........Clear (0-10 percent).
CWR.................0 percent.
Temperature.........Min 39.
RH..................Max 79 percent.
Wind (20 ft)........Northwest winds 5 to 9 mph in the evening and
                    overnight becoming light.
Mixing height.......5900 ft AGL decreasing to 300 ft AGL.
Transport winds.....Northwest 12 to 18 mph decreasing to 6 to 7 mph
                    early in the evening, then shifting to the
                    north around 5 mph after 3 am.
Smoke dispersal.....Excellent (95000 knot-ft) early in the evening
                    decreasing to poor (1200 knot-ft) late in the
                    night.
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 (%).........2      2      3      2      4      7
Weather cov.....
Weather type....NONE   NONE   NONE   NONE   NONE   NONE
Tstm cov........
CWR.............0      0      0      0      0      0
Temp............67     59     52     48     44     40
RH..............30     40     52     58     68     79
20 ft wind......NW 9   NW 6   NW 5   NW 5   N 5    E 4
20 ft wind gust.15     9      8      8      7      6
Mix hgt (ft)....5900   400    300    300    300    300
Transport wind..NW 18  NW 7   NW 6   N 7    N 6    N 5
Haines index....4      4      4      4      4      4
SDspl kt-ft/100095     3      2      2      2      1

.MONDAY...

Sky/weather.........Sunny (15-25 percent) then becoming partly
                    sunny (55-65 percent). Slight chance of rain
                    showers in the afternoon.
CWR.................10 percent increasing to 20 percent in the
                    afternoon.
Temperature.........Max 66.
RH..................Min 37 percent.
Wind (20 ft)........Light winds becoming east around 5 mph late in
                    the morning, then shifting to the northeast
                    late in the morning.
Mixing height.......1700 ft AGL increasing to 4500 ft AGL late in
                    the morning, then decreasing to 1900 ft AGL
                    late in the afternoon.
Transport winds.....North around 6 mph becoming 6 to 7 mph.
Smoke dispersal.....Poor (1500 knot-ft) early in the morning
                    increasing to fair (27000 knot-ft) in the
                    afternoon.
Haines Index........4 to 5 or low to moderate potential for large
                    plume dominated fire growth.

TIME (CDT)      6 AM   8 AM   10 AM  NOON   2 PM   4 PM
Sky (%).........12     19     51     51     56     65
Weather cov.....                            S CHC  S CHC
Weather type....NONE   NONE   NONE   NONE   RNSHWR RNSHWR
Tstm cov........
CWR.............0      10     10     10     20     20
Temp............39     44     55     60     63     64
RH..............79     68     53     44     38     38
20 ft wind......E 4    E 4    NE 5   N 5    N 5    E 5
20 ft wind gust.6      7      7      7      8      7
Mix hgt (ft)....300    800    1700   3600   3900   2700
Transport wind..N 6    N 6    N 6    NW 7   NW 7   N 6
Haines index....4      5      5      5      4      4
SDspl kt-ft/10002      4      8      21     23     14

$$
Forecaster...KS
Requested by...Jay Wanner
Type of request...PRESCRIBED
.TAG 2410658.0/ARX
.DELDT 04/13/24
.FormatterVersion 2.0.0
.EMAIL jay.wanner@wisconsin.gov
National Weather Service Weather Forecast Office
