Suppression Forecast
Issued by NWS Milwaukee/Sullivan, WI

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Spot Forecast for Westport Drumlin Prescribed Burn...WDNR
National Weather Service Milwaukee/Sullivan WI
342 AM CDT Wed Oct 28 2020

Forecast is based on ignition time of 1200 CDT on October 28.

Please contact the National Weather Service if conditions become
unrepresentative or if you have questions/concerns about this forecast.

.DISCUSSION...

Breezy southwesterly winds in the morning start to shift to the
west this afternoon and begin to subside into the evening hours.
A few stronger gusts of 15 to 25 mph are possible through the day.
The SW winds will bring some limited moisture north and should allow
for a range of Min RH values between 40 to 45 percent. A cold front
moves through tonight shifting winds to the north. Gusty northerly
winds are expected for Thursday but with cooler temps Min RH values
stay above 60 percent.


.TODAY...

Sky/weather.........Mostly sunny.
Temperature.........41 at ignition...Max 49.
RH..................57 percent at ignition...Min 51 percent.
Wind (20 ft)........Winds southwest at 7 mph at
                    ignition...otherwise West winds 5 to 8 mph.
                    Gusts up to 20 mph in the late morning and
                    afternoon.
Mixing height.......1200 ft AGL at ignition...otherwise 100-1300 ft
                    AGL.
Transport winds.....West 9 to 14 mph.
Smoke dispersal.....Poor /12100 knot-ft/ at ignition. Max...fair
                    /13100 knot-ft/.
Haines Index........4 low at ignition...max 4.

TIME (CDT)      12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........5   5   6   7   8   11
Weather cov.....
Weather type....
Tstm cov........
Temp............41  44  46  47  48  45
RH..............57  53  51  51  51  60
20 FT wind dir..SW  SW  SW  W   W   W
20 FT wind spd..7   7   7   7   7   6
20 FT wind gust.20  20  20  20  20  15
Mix hgt (kft)...1.2 1.3 1.3 1.2 1.2 0.7
Transp wind dir.SW  SW  SW  W   W   W
Transp wind spd.14  13  14  13  13  9
Haines index....4   4   4   4   4   4
SDspl kt-ft/100012  12  13  12  12  5

.TONIGHT...

Sky/weather.........Partly cloudy then becoming mostly cloudy then
                    becoming partly cloudy.
Temperature.........Min 32.
RH..................Max 92 percent.
Wind (20 ft)........Light winds becoming north 5 to 6 mph in the
                    late evening and overnight.
Mixing height.......0-400 ft AGL.
Transport winds.....North 7 to 12 mph.
Smoke dispersal.....Poor (300 knot-ft).

TIME (CDT)      6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........13  20  26  35  46  50  55  70  72  69  66  67
Weather cov.....
Weather type....
Tstm cov........
Temp............43  40  39  37  37  36  35  35  34  34  33  33
RH..............65  76  79  85  85  89  92  89  92  89  92  92
20 FT wind dir..W   W   W   NW  NW  NW  N   N   N   N   N   N
20 FT wind spd..4   4   4   4   5   5   5   6   6   6   6   6
20 FT wind gust.15  10  15  15  10  15  15  15  15  15  15  15
Mix hgt (kft)...0.4 0.1 0.1 0.1 0.1 0.1 0.2 0.2 0.2 0.3 0.3 0.3
Transp wind dir.W   W   W   NW  NW  N   N   N   N   N   N   N
Transp wind spd.8   7   7   8   10  10  12  12  12  12  12  12
Haines index....5   5   4   3   2   3   4   5   5   4   4   4
SDspl kt-ft/10002   0   0   1   1   1   1   2   2   2   3   3

.THURSDAY...

Sky/weather.........Mostly cloudy.
Temperature.........Max 41.
RH..................Min 64 percent.
Wind (20 ft)........North winds 5 to 10 mph.
Mixing height.......300-2200 ft AGL increasing to 2500-3600 ft AGL
                    in the afternoon.
Transport winds.....North 10 to 17 mph increasing to 14 to 21 mph
                    in the late morning and afternoon.
Smoke dispersal.....Poor to good (2600-50300 knot-ft).
Haines Index........2 to 4 very low to low.

TIME (CDT)      6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........70  74  73  76  72  76  73  66  64  65  67  68
Weather cov.....
Weather type....
Tstm cov........
Temp............33  33  33  35  36  37  39  40  40  40  40  38
RH..............92  92  92  85  85  82  73  70  70  67  64  70
20 FT wind dir..N   N   N   N   N   N   N   N   N   N   N   N
20 FT wind spd..6   6   7   9   10  10  10  10  10  10  9   8
20 FT wind gust.15  15  15  20  20  20  20  20  20  20  20  15
Mix hgt (kft)...0.3 0.3 0.8 1.2 1.7 2.2 2.7 3.1 3.5 3.6 3.4 2.5
Transp wind dir.N   N   N   N   NE  NE  NE  NE  N   N   N   N
Transp wind spd.12  10  14  17  21  21  20  20  20  18  16  14
Haines index....4   4   4   3   3   3   3   3   3   2   2   2
SDspl kt-ft/10003   3   8   16  27  34  39  46  50  49  41  25

$$
Forecaster...Stumpf
Requested by...Bridget Rathman
Type of request...PRESCRIBED
.TAG 2014092.0/MKX
.EMAIL bridget.rathman@wisconsin.gov



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