Spot Forecast
Issued by NWS Green Bay, WI

Home |  Current Version |  Previous Version |  Text Only |  Print | Product List |  Glossary Off
Versions: 1 2 3 4 5 6 7 8 9 10 11
581
FNUS73 KGRB 121534
FWSGRB

Spot Forecast for Dusty Trails 4/10...USFS
National Weather Service Green Bay WI
1034 AM CDT Sun May 12 2024

Forecast is based on ignition time of 0900 CDT on May 13.
If conditions become unrepresentative...contact the National Weather
Service.

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

.DISCUSSION...

Mostly clear skies are expected Monday at the burn site, with the
exception of some haze/smoke arriving  during the late morning from
ongoing Canadian wildfires. RHs will start in the 55-65
percent range Monday morning and will bottom out around 30-35
percent. Light northerly winds are expected during the morning. A
lake/bay boundary pushing west during the afternoon may shift light winds
to the east as well as lower the mixing height from around 5000ft
to 3500ft, although it is uncertain is the boundary will make it to
the burn site. Temperatures will start in the mid 50s and warm to around
70 degrees during the afternoon.

Winds are forecast to shift around to the northeast increase by Tuesday
with gusts reaching 15-20 mph during the afternoon. RHs are not expected
to be as low as Monday with minimum values in the 35-40 percent range.
Temperatures will also be a few degrees cooler than Monday with highs in
the mid 60s at the burn site during the afternoon.

.MONDAY...

Sky/weather.........Mostly sunny (35-45 percent). Haze late in the
                    morning through the afternoon.
Max temperature.....Around 72.
Min humidity........35 percent.
Wind (20 ft)........North winds 5 to 6 mph late in the morning
                    becoming light, then becoming north around 5
                    mph early in the afternoon shifting to the east
                    5 to 7 mph.
Mixing height.......5600 ft AGL.
Transport winds.....North 7 to 9 mph shifting to the southwest
                    around 8 mph late in the afternoon.
Smoke dispersal.....Poor (12300 knot-ft) early in the morning
                    increasing to good (38900 knot-ft) in the
                    afternoon.

TIME (CDT)      9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........22  28  33  36  41  46  49  52  55
Weather cov.....DEF DEF                 DEF DEF DEF
Weather type....HAZ HAZ                 HAZ HAZ HAZ
Tstm cov........
Temp............57  62  65  67  69  70  70  70  68
RH..............59  52  45  42  37  35  35  35  39
20 FT wind dir..N   N   N   N   N   NE  E   E   E
20 FT wind spd..6   6   5   3   5   5   5   6   7
20 FT wind gust.9   9   8   8   9   8   8   8   9
Mix hgt (kft)...1.5 2.4 3.4 4.4 5.2 5.6 5.6 5.1 4.3
Transp wind dir.N   N   N   NW  W   W   W   W   SW
Transp wind spd.9   8   7   7   8   8   8   8   8
SDspl kt-ft/100012  17  21  27  36  39  39  36  30

.MONDAY NIGHT...

Sky/weather.........Mostly cloudy (50-60 percent) then becoming
                    partly cloudy (35-45 percent). Haze early in
                    the evening.
Min temperature.....Around 39.
Max humidity........76 percent.
Wind (20 ft)........East winds 8 to 10 mph shifting to the
                    northeast around 9 mph late in the evening.
Mixing height.......900 ft AGL.
Transport winds.....East 9 to 10 mph shifting to the north 13 to 14
                    mph after 3 am.
Smoke dispersal.....Fair (24100 knot-ft) early in the evening
                    decreasing to poor (9700 knot-ft) late in the
                    night.

TIME (CDT)      6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........58  53  54  55  56  53  51  48  48  47  47  33
Weather cov.....DEF
Weather type....HAZ
Tstm cov........
Temp............66  62  58  54  51  48  47  45  43  42  41  41
RH..............43  50  55  61  66  68  68  68  70  70  73  73
20 FT wind dir..E   E   E   E   NE  NE  NE  NE  NE  N   N   N
20 FT wind spd..8   10  10  9   9   9   9   9   9   9   9   9
20 FT wind gust.12  15  14  13  13  13  14  14  14  14  14  14
Mix hgt (kft)...3.0 1.6 1.4 1.3 1.2 1.0 1.0 0.9 0.9 1.0 1.1 1.0
Transp wind dir.SE  E   E   E   NE  NE  NE  NE  NE  N   N   N
Transp wind spd.9   10  10  10  10  12  12  13  13  13  13  14
SDspl kt-ft/100024  14  13  12  10  10  10  10  10  11  12  12

.TUESDAY...

Sky/weather.........Sunny (10-20 percent).
Max temperature.....Around 66.
Min humidity........37 percent.
Wind (20 ft)........Northeast winds around 10 mph.
Mixing height.......5700 ft AGL.
Transport winds.....Northeast 12 to 15 mph.
Smoke dispersal.....Poor (12600 knot-ft) early in the morning
                    increasing to excellent (62700 knot-ft) in the
                    afternoon.

TIME (CDT)      6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........20  6   7   9   10  11  12  13  11  8   6   8
Weather cov.....
Weather type....
Tstm cov........
Temp............41  43  46  51  55  58  60  62  64  65  65  65
RH..............76  73  68  59  53  47  44  41  38  37  37  37
20 FT wind dir..N   N   N   NE  NE  NE  NE  NE  NE  NE  NE  NE
20 FT wind spd..10  10  10  10  10  10  10  10  10  10  10  10
20 FT wind gust.14  14  15  15  16  16  16  16  16  16  16  16
Mix hgt (kft)...1.0 1.3 2.0 2.8 3.6 4.2 4.6 4.9 5.4 5.7 5.5 4.5
Transp wind dir.N   N   N   NE  NE  NE  NE  NE  NE  NE  NE  NE
Transp wind spd.14  15  15  15  15  15  14  14  13  13  12  12
SDspl kt-ft/100013  17  25  36  47  54  55  59  60  63  55  45

$$
Forecaster...Bersch/Kaiser
Requested by...Jesse Harrand
Type of request...PRESCRIBED
.TAG 2413825.0/GRB
.DELDT 05/12/24
.FormatterVersion 2.0.0
.EMAIL jesse.harrand@usda.gov