Spot Forecast
Issued by NWS Duluth, MN

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544
FNUS73 KDLH 161935
FWSDLH

Spot Forecast for Siskiwit Prairie RX...Wisconsin DNR
National Weather Service Duluth MN
235 PM CDT Mon Sep 16 2024

Forecast is based on ignition time of 1100 CDT on September 17.
If there are questions or concerns with this forecast, or if
conditions become unrepresentative, contact the National
Weather Service in Duluth at 218-729-0653.

.DISCUSSION...

Tuesday will host a mostly sunny day, with some diurnal cumulus
clouds expected in the afternoon. Winds will primarily be out of
the south to southwest with gusts up to 15 mph. Conditions for
good smoke dispersal will depend on the amount of influence from
Lake Superior. Little to no influence will lead to mixing heights
to a maximum of 5000ft in the afternoon, higher than forecasted.
This is more likely since southwest flow tends to limit the lake`s
influence.

.TUESDAY...

Sky/weather.........Sunny (15-25 percent).
Chance of pcpn......10 percent.
LAL.................1.
Max temperature.....Around 82.
Min humidity........56 percent.
Wind (20 ft)........South winds around 6 mph.
Mixing height.......1500 ft AGL.
Transport winds.....Southwest 12 to 14 mph.
Smoke dispersal.....Poor to fair (9200-17800 knot-ft).
Haines Index........3 to 4 or very low to low potential for large
                    plume dominated fire growth.
Pcpn amount.........0.00 inches.

TIME (CDT)      11A 12P 1PM 2PM 3PM 4PM 5PM
Sky cover.......MCR MCR MCR MCR MCR MCR PC
Weather cov.....
Weather type....
Tstm cov........
Chc of pcpn (%).10  10  10  10  0   0   0
LAL.............1   1   1   1   1   1   1
Temp............75  78  79  79  81  82  81
RH..............74  67  62  64  60  56  58
20 FT wind dir..S   S   S   S   S   S   S
20 FT wind spd..6   6   6   6   6   6   5
20 FT wind gust.13  14  14  14  14  14  13
Mix hgt (kft)...1.2 1.5 1.5 1.4 1.3 1.2 0.9
Transp wind dir.S   SW  SW  SW  SW  S   S
Transp wind spd.12  14  13  14  13  13  12
Haines index....3   3   4   4   4   4   4
SDspl kt-ft/100012  18  17  17  14  14  9

.TUESDAY NIGHT...

Sky/weather.........Partly cloudy (20-30 percent).
Chance of pcpn......10 percent.
LAL.................1.
Min temperature.....Around 66.
Max humidity........75 percent.
Wind (20 ft)........South winds 5 to 6 mph.
Mixing height.......800 ft AGL.
Transport winds.....South 10 to 13 mph.
Smoke dispersal.....Poor (5100 knot-ft).
Haines Index........4 or low potential for large plume dominated
                    fire growth.
Pcpn amount.........0.00 inches.

TIME (CDT)      6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky cover.......PC  PC  PC  MCR MCR PC  PC  PC  PC  MCR PC  PC
Weather cov.....
Weather type....
Tstm cov........
Chc of pcpn (%).10  10  10  10  10  10  10  10  10  10  10  10
LAL.............1   1   1   1   1   1   1   1   1   1   1   1
Temp............81  78  76  75  73  73  73  72  71  70  68  67
RH..............58  64  66  69  71  68  66  68  68  68  73  73
20 FT wind dir..S   S   S   S   S   S   S   S   S   S   S   S
20 FT wind spd..5   4   4   5   5   5   5   5   5   5   5   4
20 FT wind gust.13  12  12  12  12  12  13  13  13  13  13  12
Mix hgt (kft)...0.8 0.7 0.6 0.6 0.6 0.6 0.6 0.7 0.6 0.6 0.6 0.6
Transp wind dir.S   S   S   S   S   S   S   S   S   S   S   S
Transp wind spd.12  12  12  12  13  13  13  13  12  12  10  10
Haines index....4   4   4   4   4   4   4   4   4   4   4   4
SDspl kt-ft/10008   7   6   6   7   7   7   8   7   6   5   5

$$
Forecaster...Krystal
Requested by...Eric Sirrine
Type of request...PRESCRIBED
.TAG 2422533.0/DLH
.DELDT 09/16/24
.FormatterVersion 2.0.0
.EMAIL eric.sirrine@wi.gov