343
FNUS73 KGRB 171931
FWSGRB

Spot Forecast for Tower West RX...DNR
National Weather Service Green Bay WI
Issued by National Weather Service Marquette MI
231 PM CDT Thu Apr 17 2025

Forecast is based on ignition time of 1400 CDT on April 18.
If conditions become unrepresentative...contact the National Weather
Service.

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

.DISCUSSION...

A broad, weak low pressure moving through the area throughout
Friday will bring 50 to 60 percent chances of rain throughout the
day and up to 35 percent chances of thunderstorms. Forecast rain
totals of around a tenth of an inch may not completely soak all
fuels unless a heavier shower moves directly over the area. Except
for in the immediate vicinity of thundershowers, winds will be
mostly in the 5-10 mph range with some gusts to 10-15 mph, though
Friday morning winds will quickly veer from southerly to
northwesterly by around noon. Precipitation moves out not long
after midnight and Saturday will see a clearing trend in the skies
with northwest winds around 5-10 mph gusting to 10-15 mph. Expect
RHs on Saturday to fall to around the 40 percent mark.


.FRIDAY...

Sky/weather.........Cloudy (85-95 percent). Chance of thunderstorms
                    early in the afternoon. Chance of showers
                    through the day. Slight chance of thunderstorms
                    late in the afternoon.
Temperature.........60 at ignition...Max 61.
RH..................81 percent at ignition...Min 74 percent.
Wind (20 ft)........Winds northwest at 6 mph at
                    ignition...otherwise Northwest winds 6 to 10
                    mph. Gusty and erratic winds expected near
                    thunderstorms early in the afternoon. Gusty and
                    erratic winds expected near thunderstorms late
                    in the afternoon.
Mixing height.......1300 ft AGL at ignition...otherwise 1600 ft
                    AGL.
Transport winds.....North 13 to 16 mph.
Smoke dispersal.....Fair /14600 knot-ft/ at ignition. Max...fair
                    /22200 knot-ft/.

TIME (CDT)      2PM 3PM 4PM 5PM
Sky (%).........92  91  90  88
Weather cov.....CHC CHC CHC CHC
Weather type....RW  RW  RW  RW
Tstm cov........CHC CHC SCH SCH
Temp............60  61  61  60
RH..............81  78  75  72
20 FT wind dir..NW  NW  NW  N
20 FT wind spd..6   7   9   10
20 FT wind gust.10  13  15  16
Mix hgt (kft)...1.3 1.4 1.5 1.6
Transp wind dir.NW  N   N   N
Transp wind spd.13  14  15  16
SDspl kt-ft/100015  17  19  22

.FRIDAY NIGHT...

Sky/weather.........Mostly cloudy (75-85 percent). Slight chance of
                    thunderstorms early in the evening. Chance of
                    rain showers in the evening.
Temperature.........Min 38.
RH..................Max 89 percent.
Wind (20 ft)........Northwest winds 7 to 12 mph. Gusty and erratic
                    winds expected near thunderstorms early in the
                    evening.
Mixing height.......900 ft AGL.
Transport winds.....Northwest 12 to 18 mph.
Smoke dispersal.....Fair (29100 knot-ft) early in the evening
                    decreasing to poor (8900 knot-ft) late in the
                    night.

TIME (CDT)      6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........87  87  90  93  94  92  87  81  76  72  69  66
Weather cov.....CHC CHC CHC CHC CHC CHC CHC
Weather type....RW  RW  RW  RW  RW  RW  RW
Tstm cov........SCH
Temp............58  56  52  48  46  44  43  42  40  40  39  38
RH..............72  72  77  83  86  86  89  89  92  89  92  92
20 FT wind dir..N   N   N   N   N   NW  NW  NW  NW  NW  NW  NW
20 FT wind spd..10  12  12  12  12  10  10  10  10  8   8   7
20 FT wind gust.16  16  15  13  13  12  12  12  12  9   9   9
Mix hgt (kft)...1.7 1.7 1.8 1.8 1.8 1.9 1.9 1.9 1.5 1.1 0.9 0.9
Transp wind dir.N   N   N   N   NW  NW  N   N   N   NW  NW  NW
Transp wind spd.17  18  18  18  17  16  16  15  14  13  12  12
SDspl kt-ft/100025  28  29  29  28  27  27  24  18  13  9   9

.SATURDAY...

Sky/weather.........Partly sunny (45-55 percent).
Temperature.........Max 55.
RH..................Min 41 percent.
Wind (20 ft)........Northwest winds 6 to 10 mph.
Mixing height.......6500 ft AGL.
Transport winds.....Northwest 12 to 14 mph.
Smoke dispersal.....Poor (11400 knot-ft) early in the morning
                    increasing to excellent (77500 knot-ft) in the
                    afternoon.

TIME (CDT)      6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........64  65  61  55  49  45  43  42  41  41  39  36
Weather cov.....
Weather type....
Tstm cov........
Temp............38  39  41  43  45  47  49  51  52  53  53  53
RH..............92  82  76  70  65  58  52  46  43  41  41  41
20 FT wind dir..NW  NW  NW  NW  NW  NW  NW  NW  NW  NW  NW  NW
20 FT wind spd..7   6   7   7   8   9   10  10  10  10  9   8
20 FT wind gust.12  13  14  14  15  16  17  17  17  17  16  15
Mix hgt (kft)...1.1 1.5 2.1 2.8 3.4 4.1 4.6 5.2 5.9 6.4 6.5 5.7
Transp wind dir.NW  NW  NW  NW  NW  NW  NW  NW  NW  NW  NW  NW
Transp wind spd.12  13  13  14  14  14  14  14  14  14  14  13
SDspl kt-ft/100011  17  23  33  41  49  56  62  71  77  78  63

$$
Forecaster...WFO MQT GS
Requested by...Kenneth Glazer
Type of request...PRESCRIBED
.TAG 2510907.0/GRB
.DELDT 04/17/25
.FormatterVersion 2.0.0
.EMAIL kenneth.glazer@wisconsin.gov