826
FNUS73 KGRB 051242
FWSGRB

Spot Forecast for LDF Powell Marsh...BIA
National Weather Service Green Bay WI
742 AM CDT Thu Jun 5 2025

Forecast is based on ignition time of 0800 CDT on June 05.
If conditions become unrepresentative...contact the National Weather
Service.

Please contact our office if you have questions or concerns with
this forecast.

.DISCUSSION...
Skies will start out sunny this morning and then becoming
partly sunny during the afternoon. There is a chance of
showers after 3 pm. Any shower could produce brief gusty
winds to 20 mph.


.REST OF TODAY...

Sky/weather.........Becoming partly cloudy. Slight chance of
                    rain showers late in the afternoon.
Max temperature.....Around 77.
Min humidity........30 percent.
Wind (20 ft)........Light winds becoming southwest 5 to 6 mph late
                    in the morning.
Mixing height.......7800 ft AGL.
Transport winds.....West 5 to 10 mph.
Smoke dispersal.....Poor (3400 knot-ft) early in the morning
                    increasing to excellent (62400 knot-ft) in the
                    afternoon.

TIME (CDT)      8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........5   5   6   14  32  47  55  63  62  60
Weather cov.....                                SCH SCH
Weather type....                                RW  RW
Tstm cov........
Temp............56  66  70  71  73  75  76  77  76  75
RH..............74  52  41  38  33  31  31  31  30  32
20 FT wind dir..SW  SW  SW  SW  SW  SW  SW  SW  SW  SW
20 FT wind spd..2   2   3   5   5   6   6   6   6   6
20 FT wind gust.5   6   8   9   10  12  12  12  10  9
Mix hgt (kft)...0.8 1.9 3.9 6.2 7.4 7.8 7.8 7.6 7.1 6.1
Transp wind dir.W   W   W   W   W   W   W   W   W   W
Transp wind spd.5   6   8   9   9   9   9   9   8   10
SDspl kt-ft/10003   10  28  50  59  62  62  61  50  55

.TONIGHT...

Sky/weather.........Mostly cloudy (70-80 percent). A chance of
                    rain showers.
Min temperature.....Around 49.
Max humidity........97 percent.
Wind (20 ft)........West winds 5 to 6 mph early in the evening
                    becoming light.
Mixing height.......300 ft AGL.
Transport winds.....Southwest 6 to 10 mph shifting to the northeast
                    5 to 9 mph overnight.
Smoke dispersal.....Good (32800 knot-ft) early in the evening
                    decreasing to poor (1800 knot-ft) late in the
                    night.

TIME (CDT)      6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........61  64  68  72  75  74  72  73  77  81  85  88
Weather cov.....SCH                             SCH CHC CHC CHC
Weather type....RW                              RW  RW  RW  RW
Tstm cov........
Temp............74  72  67  63  60  58  56  54  53  52  52  51
RH..............33  39  50  60  67  69  77  80  83  85  86  88
20 FT wind dir..W   W   W   N   N   NE  E   E   E   E   E   E
20 FT wind spd..6   5   3   2   1   1   1   1   1   1   1   1
20 FT wind gust.9   8   7   6   5   5   6   6   6   6   6   6
Mix hgt (kft)...3.6 1.1 0.6 0.4 0.3 0.4 0.4 0.4 0.4 0.4 0.4 0.4
Transp wind dir.SW  SW  W   NW  N   N   NE  E   NE  E   E   N
Transp wind spd.10  7   6   7   8   9   10  9   8   7   6   5
SDspl kt-ft/100033  6   3   2   2   3   4   3   3   2   2   2

.FRIDAY...

Sky/weather.........Mostly cloudy (65-75 percent) then becoming
                    mostly sunny (45-55 percent). Rain showers
                    likely in the morning, then chance of rain
                    showers and slight chance of thunderstorms in
                    the afternoon.
Max temperature.....Around 69.
Min humidity........49 percent.
Wind (20 ft)........Light winds becoming northeast 5 to 7 mph in
                    the late morning and afternoon. Gusty and
                    erratic winds expected near thunderstorms early
                    in the afternoon.
Mixing height.......3000 ft AGL.
Transport winds.....Northeast 7 to 10 mph.
Smoke dispersal.....Poor (3500 knot-ft) early in the morning
                    increasing to fair (21000 knot-ft) in the
                    afternoon.

TIME (CDT)      6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........89  86  87  89  85  79  73  67  62  57  54  50
Weather cov.....CHC CHC LKY LKY LKY LKY CHC CHC CHC CHC CHC CHC
Weather type....RW  RW  RW  RW  RW  RW  RW  RW  RW  RW  RW  RW
Tstm cov........                            SCH SCH SCH
Temp............50  52  54  56  59  60  62  63  65  67  68  68
RH..............97  92  89  83  73  70  66  59  55  50  49  49
20 FT wind dir..NE  NE  NE  NE  NE  NE  NE  NE  NE  NE  NE  NE
20 FT wind spd..2   2   3   3   5   5   6   6   7   7   7   6
20 FT wind gust.7   7   8   8   9   10  10  12  12  12  12  12
Mix hgt (kft)...0.6 0.8 0.9 1.2 1.3 1.9 1.9 1.7 2.1 2.6 3.0 3.0
Transp wind dir.N   N   N   NE  NE  NE  NE  NE  NE  NE  NE  NE
Transp wind spd.7   7   7   8   8   7   8   10  10  9   8   8
SDspl kt-ft/10004   5   6   8   9   11  13  15  19  21  21  21

$$
Forecaster...Eckberg
Requested by...Dave Pergolski
Type of request...PRESCRIBED
.TAG 2515393.0/GRB
.DELDT 06/05/25
.FormatterVersion 2.0.0
.EMAIL david.pergolski@bia.gov