339
FNUS73 KGRB 020925
FWSGRB

Spot Forecast for Dunbar Unit 1...WI DNR
National Weather Service Green Bay WI
425 AM CDT Sat Aug 2 2025

Forecast is based on ignition time of 0600 CDT on August 04.
If conditions become unrepresentative...contact the National Weather
Service.

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

.DISCUSSION...

.MONDAY...

Sky/weather.........Mostly sunny (45-55 percent).
Max temperature.....Around 81.
Min humidity........42 percent.
Wind (20 ft)........Light winds becoming southeast 5 to 6 mph in
                    the afternoon.
Mixing height.......8300 ft AGL.
Transport winds.....West 2 to 3 mph shifting to the south 5 to 12
                    mph in the late morning and afternoon.
Smoke dispersal.....Poor (200 knot-ft) early in the morning
                    increasing to excellent (83400 knot-ft) in the
                    afternoon.

TIME (CDT)      6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........46  42  41  42  44  48  54  58  59  58  57  56
Weather cov.....
Weather type....
Tstm cov........
Temp............58  59  63  68  73  76  78  79  80  81  80  80
RH..............87  87  78  68  57  52  47  45  44  42  44  44
20 FT wind dir..NW  NW  W   S   S   S   SE  SE  SE  SE  SE  SE
20 FT wind spd..1   1   1   2   2   3   3   5   6   6   6   6
20 FT wind gust.5   5   5   5   6   8   9   12  13  13  13  13
Mix hgt (kft)...0.1 0.4 1.1 2.2 3.4 4.8 6.1 7.1 8.0 8.3 7.8 5.9
Transp wind dir.NW  NW  W   SW  S   S   S   S   S   S   S   SE
Transp wind spd.2   2   3   5   7   9   10  12  12  12  12  12
SDspl kt-ft/10000   1   3   9   21  38  55  71  80  83  79  59

.MONDAY NIGHT...

Sky/weather.........Becoming mostly cloudy (50-60 percent).
Min temperature.....Around 58.
Max humidity........90 percent.
Wind (20 ft)........Southeast winds 5 to 6 mph early in the evening
                    becoming light.
Mixing height.......300 ft AGL.
Transport winds.....Southeast 6 to 10 mph.
Smoke dispersal.....Good (30600 knot-ft) early in the evening
                    decreasing to poor (1400 knot-ft) late in the
                    night.

TIME (CDT)      6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........55  53  48  44  42  45  51  56  58  57  55  52
Weather cov.....
Weather type....
Tstm cov........
Temp............78  76  73  69  66  64  62  61  60  60  59  59
RH..............48  52  57  66  73  78  81  84  87  84  87  87
20 FT wind dir..SE  SE  SE  SE  SE  SE  SE  SE  SE  E   E   E
20 FT wind spd..6   5   3   3   2   2   1   1   1   1   1   1
20 FT wind gust.13  12  10  9   8   7   7   6   5   5   5   5
Mix hgt (kft)...3.4 1.3 0.5 0.3 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.3
Transp wind dir.SE  SE  SE  SE  SE  SE  SE  SE  SE  SE  SE  SE
Transp wind spd.10  10  10  10  10  9   9   8   7   7   6   6
SDspl kt-ft/100031  11  4   3   4   3   3   3   3   2   2   1

.TUESDAY...

Sky/weather.........Partly sunny (50-60 percent).
Max temperature.....Around 79.
Min humidity........50 percent.
Wind (20 ft)........Light winds becoming southeast 5 to 7 mph late
                    in the morning.
Mixing height.......7400 ft AGL.
Transport winds.....Southeast 6 to 15 mph.
Smoke dispersal.....Poor (1100 knot-ft) early in the morning
                    increasing to excellent (95600 knot-ft) in the
                    afternoon.

TIME (CDT)      6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........50  49  51  54  57  59  59  59  59  60  61  63
Weather cov.....
Weather type....
Tstm cov........
Temp............59  61  64  68  72  75  77  78  79  79  79  78
RH..............90  87  81  73  66  60  54  52  50  52  52  54
20 FT wind dir..E   E   E   SE  SE  SE  SE  SE  SE  SE  SE  SE
20 FT wind spd..2   2   2   3   3   5   6   7   7   7   7   7
20 FT wind gust.5   6   7   9   10  12  14  15  16  16  16  16
Mix hgt (kft)...0.2 0.4 0.7 1.3 2.3 3.9 5.6 6.9 7.4 7.2 6.5 5.2
Transp wind dir.SE  SE  SE  SE  SE  SE  SE  SE  SE  S   S   S
Transp wind spd.6   6   7   8   10  13  14  15  15  14  13  12
SDspl kt-ft/10001   2   4   9   21  43  68  90  96  86  71  52

$$
Forecaster...Eckberg
Requested by...Aaron McCullough
Type of request...PRESCRIBED
.TAG 2518950.0/GRB
.DELDT 08/01/25
.FormatterVersion 2.0.0
.EMAIL Aaron.McCullough@Wisconsin.gov