455
FNUS73 KGRB 261311
FWSGRB

Spot Forecast for Dunbar Barrens Unit 1...DNR
National Weather Service Green Bay WI
811 AM CDT Tue Aug 26 2025

Forecast is based on ignition time of 0800 CDT on August 26.
If conditions become unrepresentative...contact the National Weather
Service.

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

.DISCUSSION...
Afternoon RH values will drop to 30-35 percent with today`s max
temperatures around 70 degrees. Dry conditions will remain in place
under mostly sunny skies with northwest winds increasing to around
10 mph and gusts to around 15 mph during the late morning and early
afternoon.

.REST OF TODAY...

Sky/weather.........Sunny (10-20 percent).
Max temperature.....Around 69.
Min humidity........33 percent.
Wind (20 ft)........Northwest winds 5 to 9 mph.
Mixing height.......7300 ft AGL.
Transport winds.....North 10 to 18 mph.
Smoke dispersal.....Poor (5200 knot-ft) early in the morning
                    increasing to excellent (93500 knot-ft) in the
                    afternoon.

TIME (CDT)      8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........8   9   10  13  16  20  22  21  18  15
Weather cov.....
Weather type....
Tstm cov........
Temp............49  56  61  62  65  66  68  69  69  68
RH..............77  62  51  48  41  38  34  33  33  36
20 FT wind dir..NW  NW  NW  NW  N   NW  NW  NW  NW  NW
20 FT wind spd..6   7   7   9   8   8   8   8   7   7
20 FT wind gust.12  14  15  16  16  16  16  15  15  13
Mix hgt (kft)...0.6 2.3 5.3 5.9 6.5 7.1 7.2 7.3 7.2 6.7
Transp wind dir.NW  N   N   N   N   N   N   N   N   NW
Transp wind spd.10  14  18  17  16  15  15  13  12  12
SDspl kt-ft/10005   28  84  89  91  93  94  81  72  67

.TONIGHT...

Sky/weather.........Partly cloudy (20-30 percent).
Min temperature.....Around 44.
Max humidity........89 percent.
Wind (20 ft)........North winds 5 to 6 mph early in the evening
                    becoming light.
Mixing height.......300 ft AGL.
Transport winds.....Northwest 5 to 10 mph shifting to the west 6 to
                    12 mph overnight.
Smoke dispersal.....Good (43700 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 (%).........15  13  10  8   6   7   10  13  26  29  39  46
Weather cov.....
Weather type....
Tstm cov........
Temp............67  63  57  54  50  48  47  45  44  44  45  45
RH..............37  44  57  64  74  77  76  82  86  86  82  86
20 FT wind dir..N   N   N   NW  SW  S   SW  W   W   W   SW  W
20 FT wind spd..6   6   3   1   1   1   1   1   1   1   2   2
20 FT wind gust.12  9   7   6   6   6   6   6   7   8   9   12
Mix hgt (kft)...4.9 0.9 0.4 0.4 0.3 0.3 0.4 0.4 0.4 0.4 0.4 0.4
Transp wind dir.NW  NW  NW  N   NW  NW  W   W   W   W   W   W
Transp wind spd.10  8   7   7   5   5   5   6   7   8   10  12
SDspl kt-ft/100044  6   3   3   1   1   2   2   2   3   4   4

.WEDNESDAY...

Sky/weather.........Partly sunny (60-70 percent). Slight chance of
                    rain showers late in the afternoon. Slight
                    chance of thunderstorms late in the afternoon.
                    Chance of rain showers late in the afternoon.
Max temperature.....Around 74.
Min humidity........50 percent.
Wind (20 ft)........Light winds becoming west 7 to 12 mph. Gusty
                    and erratic winds expected near thunderstorms
                    late in the afternoon.
Mixing height.......6400 ft AGL.
Transport winds.....West 14 to 22 mph.
Smoke dispersal.....Poor (5700 knot-ft) early in the morning
                    increasing to excellent (91200 knot-ft) in the
                    afternoon increasing to excellent (73600
                    knot-ft) late in the afternoon.

TIME (CDT)      6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........59  55  64  51  63  74  80  83  81  77  74  73
Weather cov.....                                        SCH CHC
Weather type....                                        RW  RW
Tstm cov........                                        SCH SCH
Temp............46  49  55  61  66  68  71  73  74  74  73  71
RH..............89  89  80  72  63  59  53  51  50  50  51  55
20 FT wind dir..W   W   W   W   W   W   W   W   W   W   W   W
20 FT wind spd..3   6   7   8   9   10  10  12  10  10  10  9
20 FT wind gust.13  15  16  18  20  20  20  20  20  18  18  17
Mix hgt (kft)...0.5 0.5 1.1 1.3 2.0 2.9 4.1 5.1 6.0 6.4 6.2 4.6
Transp wind dir.W   W   W   W   W   W   W   W   W   W   W   W
Transp wind spd.14  14  16  20  21  20  20  21  22  22  21  18
SDspl kt-ft/10006   6   15  22  36  50  69  91  113 122 111 74

$$
Forecaster...Kruk
Requested by...Aaron McCullough
Type of request...PRESCRIBED
.TAG 2520442.1/GRB
.DELDT 08/25/25
.FormatterVersion 2.0.0
.EMAIL Aaron.McCullough@Wisconsin.gov