103
FNUS73 KGRB 120031
FWSGRB

Spot Forecast for Greenwood South 2024...DNR
National Weather Service Green Bay WI
731 PM CDT Sat May 11 2024

Forecast is based on ignition time of 0900 CDT on May 12.
If conditions become unrepresentative...contact the National Weather
Service.

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

.DISCUSSION...
Warm temperatures are expected Sunday with highs at the burn site
in the lower 80s. Afternoon RHs will drop to 30 percent. Southwest
winds will reach 15-20 mph with gusts as high as 30 mph. An approaching
cold front from the northwest will result in a round of scattered
showers and storms at the burn site after 2100 on Sunday afternoon.
The strongest storms will be capable of strong to damaging wind gusts,
large hail as well as frequent lightning. After the front moves Sunday
night expect mainly dry weather at the burn site for Monday though there
is a small chance of a pop up shower in the afternoon. Winds will be lighter
from the north or northeast. Min RH values will be 30-35 percent as
temperatures rise into the lower 70s. Plan on mainly dry weather to
continue through at least the middle of the week with the next chance of
showers arriving Wednesday night into Thursday.

.SUNDAY...

Sky/weather.........Mostly sunny (30-40 percent). Chance of showers and
                    thunderstorms late in the afternoon.
Max temperature.....Around 81.
Min humidity........30 percent.
Wind (20 ft)........Southwest winds 9 to 16 mph with gusts to
                    around 28 mph. Gusty and erratic winds expected
                    near thunderstorms late in the afternoon.
Mixing height.......8000 ft AGL.
Transport winds.....West 20 to 25 mph.
Smoke dispersal.....Fair (21400 knot-ft) early in the morning
                    increasing to excellent (104200 knot-ft) in the
                    afternoon increasing to excellent (159700
                    knot-ft) in the afternoon.

TIME (CDT)      9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........40  36  35  34  33  32  32  32  31
Weather cov.....                        SCH CHC CHC
Weather type....                        RW  RW  RW
Tstm cov........                        SCH CHC CHC
Temp............61  68  73  77  79  80  81  81  79
RH..............58  49  41  36  34  31  30  32  34
20 FT wind dir..SW  SW  SW  SW  SW  SW  SW  W   W
20 FT wind spd..9   12  13  14  15  16  16  16  16
20 FT wind gust.20  21  23  25  26  28  28  28  26
Mix hgt (kft)...1.3 1.5 2.4 5.0 7.3 8.0 7.9 7.8 7.4
Transp wind dir.W   W   W   W   W   W   W   W   W
Transp wind spd.20  18  21  24  25  26  26  25  25
SDspl kt-ft/100021  25  43  104 160 184 182 171 163

.SUNDAY NIGHT...

Sky/weather.........Partly to mostly cloudy (30-60 percent). Chance
                    of showers and thunderstorms in the evening.
Min temperature.....Around 50.
Max humidity........96 percent.
Wind (20 ft)........West winds 6 to 15 mph shifting to the north
                    around 6 mph early in the morning. Gusty and
                    erratic winds expected near thunderstorms in
                    the evening.
Mixing height.......300 ft AGL.
Transport winds.....West 16 to 21 mph shifting to the northwest 7
                    to 10 mph overnight.
Smoke dispersal.....Good (57100 knot-ft) early in the evening
                    decreasing to poor (1700 knot-ft) late in the
                    night.

TIME (CDT)      6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........30  29  40  53  61  59  51  45  45  48  52  53
Weather cov.....CHC CHC CHC CHC CHC CHC CHC
Weather type....RW  RW  RW  RW  RW  RW  RW
Tstm cov........CHC CHC CHC CHC CHC CHC CHC
Temp............79  76  70  67  63  62  59  58  57  54  53  51
RH..............32  39  51  56  70  70  78  80  83  90  89  96
20 FT wind dir..W   W   W   W   W   NW  NW  W   W   W   NW  N
20 FT wind spd..15  12  9   9   8   7   6   6   6   5   6   6
20 FT wind gust.24  18  15  14  12  10  9   9   8   8   9   9
Mix hgt (kft)...3.2 1.0 0.5 0.5 0.4 0.4 0.4 0.3 0.3 0.3 0.3 0.3
Transp wind dir.W   W   W   W   W   W   W   W   W   W   NW  NW
Transp wind spd.21  14  12  12  15  13  13  12  8   7   8   8
SDspl kt-ft/100057  12  5   5   6   4   4   3   2   2   2   2

.MONDAY...

Sky/weather.........Mostly sunny (45-55 percent) then becoming
                    partly sunny (60-70 percent). Slight chance of
                    rain showers in the afternoon.
Max temperature.....Around 73.
Min humidity........34 percent.
Wind (20 ft)........North winds 6 to 9 mph.
Mixing height.......5800 ft AGL.
Transport winds.....Northwest 7 to 9 mph.
Smoke dispersal.....Poor (2400 knot-ft) early in the morning
                    increasing to good (41900 knot-ft) in the
                    afternoon.

TIME (CDT)      6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........52  40  50  60  70  70  70  70  67  65  62  64
Weather cov.....                            SCH SCH SCH SCH SCH
Weather type....                            RW  RW  RW  RW  RW
Tstm cov........
Temp............50  51  54  59  63  66  69  70  72  72  72  71
RH..............96  89  80  64  56  48  40  38  34  34  34  36
20 FT wind dir..N   N   N   N   N   N   N   N   N   N   N   N
20 FT wind spd..6   6   6   6   6   7   8   9   9   9   9   9
20 FT wind gust.9   10  10  10  10  12  12  13  14  14  14  14
Mix hgt (kft)...0.4 0.6 0.8 1.3 1.9 2.8 3.9 4.7 5.5 5.8 5.6 4.6
Transp wind dir.NW  N   N   N   N   N   NW  W   NW  NW  NW  N
Transp wind spd.7   7   7   7   7   8   8   9   9   8   8   9
SDspl kt-ft/10002   3   5   7   11  19  29  38  42  42  39  35

$$
Forecaster...Alumbaugh
Requested by...Jason Hennes
Type of request...PRESCRIBED
.TAG 2413795.0/GRB
.DELDT 05/11/24
.FormatterVersion 2.0.0
.EMAIL jason.hennes@wisconsin.gov