025
FNUS73 KGRB 201104
FWSGRB

Spot Forecast for Lundberg RX...Wisconsin DNR
National Weather Service Green Bay WI
604 AM CDT Thu Aug 20 2026

Forecast is based on ignition time of 0600 CDT on August 20.
If conditions become unrepresentative...contact the National Weather
Service.

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

.DISCUSSION...

Middle and high clouds will move across the site today, with showers
and a few storms arriving late tonight. Relative humidity will drop
to between 30-35% this afternoon. Light and variable winds will turn
to the southwest later this morning and gust to around 15 mph.

.TODAY...

Sky/weather.........Mostly sunny (30-40 percent).
Max temperature.....Around 81.
Min humidity........35 percent.
Wind (20 ft)........Light winds becoming southwest 5 to 9 mph in
                    the afternoon.
Mixing height.......5800 ft AGL.
Transport winds.....South around 3 mph shifting to the southwest 3
                    to 12 mph, then shifting to the south around 13
                    mph late in the afternoon.
Smoke dispersal.....Poor (1000 knot-ft) early in the morning
                    increasing to good (58000 knot-ft) in the
                    afternoon.

TIME (CDT)      6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........9   14  14  14  15  26  37  49  52  56  59  58
Weather cov.....
Weather type....
Tstm cov........
Temp............51  50  56  62  70  73  75  78  79  81  81  80
RH..............83  86  77  65  49  43  38  36  33  32  35  36
20 FT wind dir..N   N   SE  SW  SW  SW  SW  SW  SW  SW  SW  SW
20 FT wind spd..0   0   1   2   4   4   5   6   7   8   9   9
20 FT wind gust.2   2   3   5   6   8   11  12  13  14  14  14
Mix hgt (kft)...0.4 0.4 0.3 0.7 2.0 3.9 5.1 5.6 5.8 5.7 5.8 4.5
Transp wind dir.S   SW  SW  SW  SW  SW  SW  SW  SW  SW  SW  S
Transp wind spd.3   3   3   5   7   7   8   9   10  12  12  13
SDspl kt-ft/10001   1   1   3   12  23  36  45  52  57  58  50

.TONIGHT...

Sky/weather.........Mostly cloudy (65-75 percent). Chance of
                    showers in the evening. Chance of thunderstorms
                    through the night. Showers likely overnight.
Min temperature.....Around 61.
Max humidity........100 percent.
Wind (20 ft)........South winds 6 to 8 mph. Gusty and erratic winds
                    expected near thunderstorms late in the
                    evening. Gusty and erratic winds expected near
                    thunderstorms late in the evening, then gusty
                    and erratic winds expected near thunderstorms
                    after 3 am.
Mixing height.......400 ft AGL.
Transport winds.....South 9 to 13 mph.
Smoke dispersal.....Fair (28500 knot-ft) early in the evening
                    decreasing to poor (3500 knot-ft) late in the
                    night.

TIME (CDT)      6 PM   8 PM   10 PM  MIDNGT 2 AM   4 AM
Sky (%).........58     61     70     80     79     67
Weather cov.....              S CHC  CHANCE LIKELY CHANCE
Weather type....NONE   NONE   RNSHWR RNSHWR RNSHWR RNSHWR
Tstm cov........              S CHC  CHANCE CHANCE S CHC
Temp............79     72     67     64     62     62
RH..............41     57     73     87     93     97
20 ft wind......SW 8   S 7    S 7    S 7    S 6    S 7
20 ft wind gust.14     14     15     14     14     14
Mix hgt (ft)....2600   500    400    500    500    500
Transport wind..S 13   S 9    S 10   SW 9   SW 12  S 12
SDspl kt-ft/100029     4      4      4      5      5

$$
Forecaster...Bersch
Requested by...Zak Knab
Type of request...PRESCRIBED
.TAG 2620071.0/GRB
.DELDT 08/20/26
.FormatterVersion 2.0.0
.EMAIL zachary.knab@wisconsin.gov