Spot Forecast
Issued by NWS Aberdeen, SD

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Spot Forecast for Bois de Sioux WMA...MN DNR
National Weather Service Aberdeen SD
1051 AM CDT Mon Sep 23 2024

Forecast is based on ignition time of 1200 CDT on September 23.
If conditions become unrepresentative...contact the National Weather
Service.

.DISCUSSION...High clouds will be increasing across the burn area
this afternoon as a cold front nears from central North Dakota and
north central South Dakota. There is a 20 to 50 percent chance of
light rain from 2000 to 2400 this evening. No thunderstorms are
expected, with rainfall amounts of less than 0.10 inches total.
Winds will shift from out of the south to out of the west as the
cold front crosses late this evening. Dry weather will return
overnight, with relative humidity values remaining above 40
percent Tuesday afternoon as winds shift out of the northwest.

.REST OF TODAY...

Sky/weather.........Partly sunny (20-30 percent).
CWR.................1 percent.
Chance of pcpn......0 percent.
LAL.................1.
Max temperature.....Around 73.
Min humidity........30 percent.
Wind (20 ft)........South winds 15 to 18 mph.
Mixing height.......3500-4900 ft agl.
Transport winds.....South 22 to 24 mph.
Smoke dispersal.....Good (65800 knot-ft) early in the morning
                    increasing to very good (103000 knot-ft) in the
                    afternoon.
Haines Index........4 to 5 or (low) to (moderate).

TIME (CDT)      12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........10  8   13  11  21  46
Weather cov.....
Weather type....
Tstm cov........
Chc of pcpn (%).0   0   0   0   0   0
Temp............69  72  73  73  73  73
RH..............37  35  33  31  30  32
20 FT wind dir..S   S   S   S   S   S
20 FT wind spd..14  16  18  18  18  16
20 FT wind gust.17  24  25  25  25  23
Mix hgt (kft)...3.5 4.2 4.5 4.7 4.9 4.6
Smoke Dispersal.GD  GD  GD  GD  VGD GD

.TONIGHT...

Sky/weather.........Mostly cloudy (60-70 percent) then becoming
                    partly cloudy (35-45 percent). Slight chance of
                    rain showers early in the evening. Chance of
                    rain showers late in the evening, then slight
                    chance of rain showers overnight.
CWR.................6 percent increasing to 18 percent early in the
                    evening, then decreasing to 4 percent
                    overnight.
Chance of pcpn......50 percent.
LAL.................1.
Min temperature.....Around 50.
Max humidity........100 percent.
Wind (20 ft)........South winds 6 to 14 mph shifting to the west
                    around 6 mph early in the morning.
Mixing height.......400-1400 ft agl.
Transport winds.....South 9 to 18 mph decreasing to around 8 mph
                    overnight, then shifting to the northwest 6 to
                    7 mph overnight.
Smoke dispersal.....Poor (2000 knot-ft).
Haines Index........3 to 5 or (very low) to (moderate).

TIME (CDT)      6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........67  78  78  79  80  74  65  66  53  43  38  38
Weather cov.....        SCH CHC CHC CHC SCH
Weather type....        RW  RW  RW  RW  RW
Tstm cov........
Chc of pcpn (%).0   10  20  30  50  40  20  10  0   0   0   0
Temp............71  68  64  62  60  59  57  56  56  55  53  52
RH..............35  39  47  53  59  64  75  85  85  88  93  96
20 FT wind dir..S   S   S   S   S   S   S   SW  SW  SW  W   W
20 FT wind spd..14  12  10  10  9   8   6   6   6   6   6   6
20 FT wind gust.21  17  15  15  14  11  9   9   9   9   9   9
Mix hgt (kft)...1.4 0.6 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4
Smoke Dispersal.PR  PR  PR  PR  PR  PR  PR  PR  PR  PR  PR  PR

.TUESDAY...

Sky/weather.........Partly sunny (30-40 percent).
CWR.................1 percent.
Chance of pcpn......0 percent.
LAL.................1.
Max temperature.....Around 72.
Min humidity........48 percent.
Wind (20 ft)........Northwest winds 6 to 10 mph becoming 7 to 9 mph
                    late in the afternoon.
Mixing height.......400-5200 ft agl.
Transport winds.....Northwest 8 to 17 mph.
Smoke dispersal.....Poor (2800 knot-ft) early in the morning
                    increasing to good (75700 knot-ft) in the
                    afternoon.
Haines Index........3 (very low).

TIME (CDT)      6 AM   8 AM   10 AM  NOON   2 PM   4 PM
Sky (%).........34     32     32     37     37     33
Weather cov.....
Weather type....NONE   NONE   NONE   NONE   NONE   NONE
Tstm cov........
Chc of pcpn (%).0      0      0      0      0      0
Temp............51     51     59     66     70     72
RH..............98     100    80     63     51     46
20 ft wind......W 6    NW 6   NW 8   NW 9   NW 10  NW 9
20 ft wind gust.9      9      13     14     15     14
Mix hgt (ft)....400    500    1400   2800   4400   5200
Smoke Dispersal.POOR   POOR   POOR   POOR   GOOD   GOOD

$$
Forecaster...KF
Requested by...Matt Mecklenburg
Type of request...PRESCRIBED
.TAG 2422900.0/ABR
.DELDT 09/23/24
.FormatterVersion 2.0.0
.EMAIL matt.mecklenburg@state.mn.us