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000
FNUS73 KDLH 201042
FWSDLH

Spot Forecast for Crex Unit 66...WI DNR
National Weather Service Duluth MN
542 AM CDT Sat Apr 20 2024

Forecast is based on ignition time of 0600 CDT on April 20.
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...

Overcast skies early this morning are expected to become mostly
sunny by 1300 today as dry air aloft moves into the area. Snow
flurries will be possible this morning, but no accumulation is
expected. Dry air will be mixing to the surface early this
afternoon as mixing height increases to around 6,000 ft. Minimum
RH this afternoon is expected to be around 25%. Winds will be from
the northwest today around 9-12 mph with excellent smoke dispersal
expected. Similar conditions are forecast for tomorrow as deep
mixing once again drops min RH to around 25%. Winds will shift
slightly this evening to the west and remain westerly on Sunday
with excellent smoke dispersal occurring during the daytime hours.

.TODAY...

Sky/weather.........Mostly cloudy (65-75 percent) then becoming
                    sunny (20-30 percent).
Chance of pcpn......10 percent.
LAL.................1.
Max temperature.....Around 49.
Min humidity........25 percent.
Wind (20 ft)........Northwest winds 9 to 12 mph.
Mixing height.......3500 ft AGL increasing to 6100 ft AGL.
Transport winds.....Northwest 17 to 23 mph.
Smoke dispersal.....Fair to good (26500-41400 knot-ft) increasing
                    to excellent (69100-104500 knot-ft) early in
                    the morning.
Haines Index........3 to 5 or very low to moderate potential for
                    large plume dominated fire growth.
Pcpn amount.........0.00 inches.

TIME (CDT)      6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky cover.......MC  MC  MC  MC  MC  MC  MC  PC  PC  MCR CLR CLR
Weather cov.....
Weather type....
Tstm cov........
Chc of pcpn (%).10  0   0   0   0   0   0   0   0   0   0   0
LAL.............1   1   1   1   1   1   1   1   1   1   1   1
Temp............28  28  30  32  36  39  40  42  44  47  48  48
RH..............68  71  66  63  54  48  44  41  35  30  27  27
20 FT wind dir..NW  NW  NW  NW  NW  NW  NW  NW  NW  NW  NW  NW
20 FT wind spd..9   9   9   10  10  11  11  11  11  11  11  10
20 FT wind gust.14  14  15  16  16  18  16  16  16  16  16  16
Mix hgt (kft)...1.6 2.3 3.5 4.1 4.5 4.7 4.7 5.1 5.3 5.5 6.0 6.1
Transp wind dir.NW  NW  NW  NW  NW  NW  NW  NW  NW  NW  NW  NW
Transp wind spd.20  21  23  23  21  20  18  17  17  18  20  20
Haines index....3   4   4   4   4   4   4   5   5   5   5   5
SDspl kt-ft/100027  41  69  82  81  79  76  76  79  88  102 105

.TONIGHT...

Sky/weather.........Mostly clear (0-10 percent).
Chance of pcpn......0 percent.
LAL.................1.
Min temperature.....Around 28.
Max humidity........75 percent.
Wind (20 ft)........West winds 6 to 9 mph.
Mixing height.......6200 ft AGL decreasing to 700 ft AGL early in
                    the evening.
Transport winds.....Northwest 12 to 20 mph shifting to the west 10
                    to 13 mph in the late evening and overnight.
Smoke dispersal.....Excellent (72200-105600 knot-ft) decreasing to
                    poor (4100 knot-ft) early in the evening.
Haines Index........5 or moderate potential for large plume
                    dominated fire growth.
Pcpn amount.........0.00 inches.

TIME (CDT)      6 PM   8 PM   10 PM  MIDNGT 2 AM   4 AM
Sky cover.......CLEAR  CLEAR  MCLEAR MCLEAR MCLEAR MCLEAR
Weather cov.....
Weather type....NONE   NONE   NONE   NONE   NONE   NONE
Tstm cov........
Chc of pcpn (%).0      0      0      0      0      0
LAL.............1      1      1      1      1      1
Temp............49     42     37     34     32     30
RH..............25     34     48     56     61     69
20 ft wind......W 9    W 7    W 5    W 6    W 6    W 6
20 ft wind gust.15     14     12     11     12     12
Mix hgt (ft)....6200   700    500    400    500    500
Transport wind..NW 20  W 12   W 10   W 12   W 12   W 12
Haines index....5      5      5      5      5      5
SDspl kt-ft/1000106    7      4      4      5      5

.SUNDAY...

Sky/weather.........Sunny (0-10 percent).
Chance of pcpn......0 percent.
LAL.................1.
Max temperature.....Around 60.
Min humidity........24 percent.
Wind (20 ft)........West winds 6 to 10 mph.
Mixing height.......1400 ft AGL increasing to 3900 ft AGL late in
                    the morning, then increasing to 7000 ft AGL
                    early in the afternoon increasing to 7400 ft
                    AGL late in the afternoon decreasing to 5400 ft
                    AGL.
Transport winds.....West 12 to 21 mph.
Smoke dispersal.....Poor to fair (4800-19500 knot-ft) increasing to
                    good (41000 knot-ft) late in the morning, then
                    increasing to excellent (65900-90300 knot-ft)
                    late in the morning increasing to excellent
                    (111600-131400 knot-ft) late in the afternoon
                    decreasing to excellent (82000 knot-ft).
Haines Index........5 to 6 or moderate to high potential for large
                    plume dominated fire growth.
Pcpn amount.........0.00 inches.

TIME (CDT)      6 AM   8 AM   10 AM  NOON   2 PM   4 PM
Sky cover.......CLEAR  CLEAR  CLEAR  CLEAR  CLEAR  MCLEAR
Weather cov.....
Weather type....NONE   NONE   NONE   NONE   NONE   NONE
Tstm cov........
Chc of pcpn (%).0      0      0      0      0      0
LAL.............1      1      1      1      1      1
Temp............29     34     46     54     58     60
RH..............75     66     45     32     27     24
20 ft wind......W 6    W 7    W 9    W 10   W 10   W 10
20 ft wind gust.12     13     14     15     16     16
Mix hgt (ft)....500    900    2600   5100   7000   6800
Transport wind..W 12   W 14   W 18   NW 21  NW 21  W 20
Haines index....5      6      6      6      6      6
SDspl kt-ft/10005      11     41     90     127    116

$$
Forecaster...Woody
Requested by...Renae Essenmacher
Type of request...PRESCRIBED
.TAG 2411418.0/DLH
.DELDT 04/20/24
.FormatterVersion 2.0.0
.EMAIL renae.essenmacher@wisconsin.gov