Spot Forecast
Issued by NWS La Crosse, WI

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Spot Forecast for New Chester Elk...US FISH AND WILDLIFE SERVICE
National Weather Service La Crosse WI
741 AM CDT Fri May 10 2024

Forecast is based on ignition time of 0900 CDT on May 10.
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...Scattered showers and thunderstorms are expected
between 5 PM and 7 PM today. A few of the thunderstorms could produce
strong gusty winds. Highs today will be in the upper 60s. Afternoon
humidities will fall to around 30. Winds outside of thunderstorms
will be in the 5 to 10 mph range. Smoke dispersion will be
initially fair and then improve to excellent as diurnal mixes out
the nocturnal inversion.

Mainly dry weather will prevail Saturday with high temperatures
in the upper 60s and minimum relative humidity expected to be in
the mid-30s. Winds will be northwest at 10 to 15 mph.

.REST OF TODAY...

Sky/weather.........Mostly sunny (35-45 percent). Slight chance of
                    showers and thunderstorms late in the
                    afternoon.
CWR.................0 percent increasing to 20 percent late in the
                    afternoon.
Temperature.........53 at ignition...Max 68.
RH..................72 percent at ignition...Min 33 percent.
Wind (20 ft)........Winds west at 5 mph at ignition...otherwise
                    West winds 5 to 10 mph. Gusty and erratic winds
                    expected near thunderstorms late in the
                    afternoon.
Mixing height.......1600 ft AGL at ignition...otherwise 2500 ft AGL
                    increasing to 6900 ft AGL.
Transport winds.....West 10 to 18 mph increasing to around 20 mph
                    late in the afternoon.
Smoke dispersal.....Fair /14100 knot-ft/ at ignition.
                    Max...excellent /110900 knot-ft/.
Haines Index........5 or moderate potential for large plume
                    dominated fire growth at ignition...max 5.

TIME (CDT)      9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........25  20  11  8   8   18  26  50  67
Weather cov.....                                SCH
Weather type....                                RW
Tstm cov........                                SCH
CWR.............0   0   0   0   0   0   0   0   20
Temp............53  57  60  63  65  66  67  68  67
RH..............72  64  53  41  35  36  34  33  37
20 FT wind dir..W   W   W   W   W   W   W   W   W
20 FT wind spd..5   7   8   8   8   8   9   10  10
20 FT wind gust.11  12  13  13  14  14  15  16  16
Mix hgt (kft)...1.6 2.5 3.8 4.7 5.7 6.3 6.5 6.9 6.3
Transp wind dir.W   W   W   NW  W   W   W   W   W
Transp wind spd.10  13  15  16  15  15  16  18  20
Haines index....5   5   5   5   5   5   5   5   5
SDspl kt-ft/100014  28  49  66  75  82  91  111 107

.TONIGHT...

Sky/weather.........Mostly cloudy (65-75 percent) then becoming
                    partly cloudy (25-35 percent). Rain showers and
                    chance of thunderstorms in the evening.
CWR.................80 percent decreasing to 10 percent in the late
                    evening and overnight.
Temperature.........Min 44.
RH..................Max 89 percent.
Wind (20 ft)........West winds 7 to 10 mph with gusts to around 19
                    mph shifting to the northwest 7 to 9 mph with
                    gusts to around 18 mph in the late evening and
                    overnight. Gusty and erratic winds expected
                    near thunderstorms early in the evening. Gusty
                    and erratic winds expected near thunderstorms
                    early in the evening.
Mixing height.......500 ft AGL.
Transport winds.....West 12 to 16 mph shifting to the northwest 10
                    to 15 mph in the late evening and overnight.
Smoke dispersal.....Good (33600 knot-ft) early in the evening
                    decreasing to poor (4400 knot-ft) late in the
                    night.
Haines Index........3 to 5 or very low to moderate potential for
                    large plume dominated fire growth.

TIME (CDT)      6 PM   8 PM   10 PM  MIDNGT 2 AM   4 AM
Sky (%).........79     76     53     49     38     17
Weather cov.....CHANCE CHANCE
Weather type....RNSHWR RNSHWR NONE   NONE   NONE   NONE
Tstm cov........S CHC  CHANCE
CWR.............50     50     10     0      0      0
Temp............66     58     52     50     48     45
RH..............42     67     86     83     86     89
20 ft wind......W 10   W 9    NW 7   NW 7   W 7    NW 9
20 ft wind gust.16     18     14     15     14     18
Mix hgt (ft)....2400   1000   600    600    600    600
Transport wind..W 16   W 12   NW 10  NW 13  NW 15  NW 14
Haines index....5      4      4      4      3      3
SDspl kt-ft/100034     10     5      7      8      7

.SATURDAY...

Sky/weather.........Sunny (20-30 percent).
CWR.................10 percent.
Temperature.........Max 67.
RH..................Min 36 percent.
Wind (20 ft)........Northwest winds 10 to 15 mph.
Mixing height.......2400 ft AGL increasing to 6900 ft AGL.
Transport winds.....Northwest 16 to 24 mph increasing to 21 to 28
                    mph in the late morning and afternoon.
Smoke dispersal.....Poor (9400 knot-ft) early in the morning
                    increasing to excellent (151500 knot-ft) in the
                    afternoon.
Haines Index........3 to 5 or very low to moderate potential for
                    large plume dominated fire growth.

TIME (CDT)      6 AM   8 AM   10 AM  NOON   2 PM   4 PM
Sky (%).........5      7      13     27     38     40
Weather cov.....
Weather type....NONE   NONE   NONE   NONE   NONE   NONE
Tstm cov........
CWR.............0      0      0      0      10     10
Temp............44     49     57     61     64     66
RH..............89     80     59     48     40     36
20 ft wind......NW 10  NW 11  NW 13  NW 13  NW 15  NW 13
20 ft wind gust.20     20     21     22     21     20
Mix hgt (ft)....700    1500   3700   5500   6900   6600
Transport wind..NW 16  NW 21  NW 26  NW 28  NW 25  NW 24
Haines index....3      4      4      4      5      5
SDspl kt-ft/10009      27     86     131    152    140

$$
Forecaster...JSB
Requested by...Sean
Type of request...PRESCRIBED
.TAG 2413686.0/ARX
.DELDT 05/10/24
.FormatterVersion 2.0.0
.EMAIL sean_sallmann@fws.gov