Spot Forecast
Issued by NWS Duluth, MN

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000
FNUS73 KDLH 132220
FWSDLH

Spot Forecast for Smith Bridge fire...Wisconsin DNR
National Weather Service Duluth MN
520 PM CDT Sat Apr 13 2024

Forecast is based on forecast start time of 1800 CDT on April 13.
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...

Southerly flow will quickly switch to northerly as the lake
breeze boundary reaches the fire at around 8 PM this evening. Some
sprinkles are possible at the site, but due to dry
conditions at the surface, most of the already limited
precipitation will not reach the ground. Sunday, dry conditions
will continue as RH and winds near the fire will be similar to
today (RH 20 to 25%, winds NW 10-15 mph with gusts to 20 mph by
mid and late afternoon). Some local wind variations are also
possible in the afternoon as cool air moves across northern
Washburn county from nearby lakes surrounding the fire.

.TONIGHT...

Chance of pcpn......20 percent.
LAL.................1.
Wind (20 ft)........Southwest winds 6 to 7 mph shifting to the
                    north 5 to 6 mph in the late evening and
                    overnight, then becoming light after 3 am.
Mixing height.......3100 ft AGL decreasing to 800 ft AGL.
Transport winds.....Southwest 9 to 18 mph shifting to the north 6
                    to 13 mph early in the evening.
Smoke dispersal.....Good (50100 knot-ft) decreasing to poor
                    (2000-8000 knot-ft).
Haines Index........4 to 5 or low to moderate potential for large
                    plume dominated fire growth.
Pcpn amount.........0.00 inches.
Sky/weather.........Partly cloudy (35-45 percent) then becoming
                    mostly cloudy (50-60 percent) then becoming
                    mostly clear (15-25 percent). Chance of
                    sprinkles early in the evening, then slight
                    chance of rain showers late in the evening.
                    Chance of sprinkles late in the evening.
Min temperature.....Around 37.
Max humidity........85 percent.

TIME (CDT)      6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky cover.......MCR PC  PC  MC  MC  PC  PC  MCR MCR MCR CLR CLR
Weather cov.....CHC CHC CHC CHC SCH CHC
Weather type....RW  RW  RW  RW  RW  RW
Tstm cov........
Chc of pcpn (%).10  10  10  10  20  10  10  0   0   0   0   0
LAL.............1   1   1   1   1   1   1   1   1   1   1   1
Temp............68  64  61  56  51  48  46  43  42  40  38  38
RH..............33  40  48  55  61  63  68  73  76  79  82  85
20 FT wind dir..SW  SW  W   N   N   N   N   N   N   NW  NW  NW
20 FT wind spd..11  8   5   5   5   5   4   4   4   3   3   3
20 FT wind gust.14  9   8   9   9   9   8   7   6   5   5   5
Mix hgt (kft)...3.1 0.8 0.5 0.4 0.7 0.4 0.4 0.4 0.4 0.4 0.4 0.4
Transp wind dir.SW  SW  N   N   N   N   NE  N   N   N   NW  NW
Transp wind spd.18  9   7   10  13  9   7   6   7   6   8   9
Haines index....4   5   5   5   5   5   5   5   5   5   5   5
SDspl kt-ft/100050  6   3   4   8   3   3   2   2   2   3   3

.SUNDAY...

Sky/weather.........Sunny (0-10 percent).
Chance of pcpn......0 percent.
LAL.................1.
Max temperature.....Around 68.
Min humidity........23 percent.
Wind (20 ft)........Light winds becoming northwest 5 to 12 mph.
Mixing height.......2100 ft AGL increasing to 7800 ft AGL.
Transport winds.....North 10 to 18 mph shifting to the northwest 21
                    to 23 mph in the afternoon.
Smoke dispersal.....Poor to fair (3700-22800 knot-ft) increasing to
                    excellent (143200-153000 knot-ft).
Haines Index........4 to 5 or low to moderate 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  CLEAR
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............37     43     56     64     67     68
RH..............85     73     49     32     27     24
20 ft wind......NW 3   NW 5   N 8    NW 9   NW 10  NW 11
20 ft wind gust.6      11     14     18     18     18
Mix hgt (ft)....400    700    2100   5200   7200   7800
Transport wind..NW 10  N 10   N 18   N 21   NW 23  NW 22
Haines index....5      5      5      5      4      4
SDspl kt-ft/10004      6      34     93     143    147

.SUNDAY NIGHT...

Sky/weather.........Mostly clear (5-15 percent).
Chance of pcpn......0 percent.
LAL.................1.
Min temperature.....Around 37.
Max humidity........85 percent.
Wind (20 ft)........Northwest winds 5 to 9 mph in the evening
                    becoming light.
Mixing height.......7000 ft AGL decreasing to 1700 ft AGL.
Transport winds.....Northwest 14 to 21 mph decreasing to 6 to 9 mph
                    early in the evening, then shifting to the
                    north around 7 mph after 3 am.
Smoke dispersal.....Excellent (125900 knot-ft) decreasing to poor
                    to fair (1500-20100 knot-ft).
Haines Index........4 or low potential for large plume dominated
                    fire growth.
Pcpn amount.........0.00 inches.

TIME (CDT)      6 PM      9 PM      MIDNGT    3 AM
Sky cover.......CLEAR     CLEAR     CLEAR     CLEAR
Weather cov.....
Weather type....NONE      NONE      NONE      NONE
Tstm cov........
Chc of pcpn (%).0         0         0         0
LAL.............1         1         1         1
Temp............66        55        46        42
RH..............24        41        60        73
20 FT wind......NW 9G15   NW 5G11   NW 3G7    N 3G5
Mix hgt (ft)....7000      500       300       300
Transport wind..NW 21     NW 8      N 6       N 7
Haines index....4         4         4         4
SDspl kt-ft/1000126       4         2         2

$$
Forecaster...Krystal
Requested by...Terry Asleson
Type of request...WILDFIRE
.TAG 2410654.0/DLH
.DELDT 04/13/24
.FormatterVersion 2.0.0
.EMAIL terry.asleson@wisconsin.gov


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