Spot Forecast
Issued by NWS Aberdeen, SD

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Spot Forecast for Rau Lake Piles...US Fish and Wildlife Service
National Weather Service Aberdeen SD
320 AM CDT Sat Mar 23 2024

Forecast is based on ignition time of 0500 CDT on March 23.
If conditions become unrepresentative...contact the National Weather
Service.

.DISCUSSION...Winds are light and variable at the burn site early
this morning. As the morning progresses, winds should start to
favor a northeast to east direction, while slowly increasing in
speed. By late morning and through the afternoon, direction is
forecast to favor a southeast direction, with speeds increasing to
over 20 mph in gusts. Chances for snowfall will also be on the
increase this afternoon, with a dusting to around 1 inch possible.

.REST OF TONIGHT...

Sky/weather.........Mostly cloudy (75-85 percent).
CWR.................2 percent.
Chance of pcpn......0 percent.
LAL.................1.
Min temperature.....Around 4 above.
Max humidity........75 percent.
Wind (20 ft)........Northeast winds around 6 mph.
Mixing height.......300 ft agl.
Transport winds.....East around 7 mph.
Smoke dispersal.....Poor (2000 knot-ft).
Haines Index........3 (very low).

TIME (CDT)      5AM
Sky (%).........82
Weather cov.....
Weather type....
Tstm cov........
Chc of pcpn (%).0
Temp............7
RH..............75
20 FT wind dir..NE
20 FT wind spd..6
20 FT wind gust.8
Smoke Dispersal.PR

.TODAY...

Sky/weather.........Cloudy (90-100 percent). Slight chance of snow
                    late in the morning. Chance of snow late in the
                    morning, then snow likely late in the
                    afternoon. Patchy blowing snow late in the
                    afternoon.
CWR.................7 percent increasing to 21 percent in the
                    afternoon.
Chance of pcpn......70 percent.
LAL.................1.
Max temperature.....Around 24.
Min humidity........71 percent.
Wind (20 ft)........East winds 6 to 14 mph increasing to 16 to 21
                    mph in the afternoon.
Mixing height.......400-2500 ft agl.
Transport winds.....East 7 to 16 mph increasing to 20 to 24 mph
                    late in the afternoon.
Smoke dispersal.....Poor (2200 knot-ft) early in the morning
                    increasing to fair (47400 knot-ft) in the
                    afternoon.
Haines Index........2 to 3 or (very low).

TIME (CDT)      6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........88  93  92  91  90  93  96  98  99  99  99  99
Weather cov.....                SCH CHC CHC CHC LKY LKY LKY LKY
Weather type....                SN  SN  SN  SN  SN  SN  SN  SN
Tstm cov........
Chc of pcpn (%).0   10  10  10  20  30  40  50  60  70  60  70
Temp............8   7   8   9   13  15  16  19  19  21  21  22
RH..............78  80  80  80  83  87  90  89  96  89  92  87
20 FT wind dir..E   E   E   E   SE  SE  SE  SE  E   E   E   E
20 FT wind spd..6   7   8   9   10  13  14  16  18  18  21  21
20 FT wind gust.9   12  12  14  15  17  20  21  22  24  25  26
Smoke Dispersal.PR  PR  PR  PR  PR  PR  PR  PR  PR  FR  FR  FR

.TONIGHT...

Sky/weather.........Cloudy (95-100 percent). Patchy blowing snow
                    through the night. Snow likely.
CWR.................19 percent decreasing to 18 percent in the late
                    evening and overnight, then increasing to 29
                    percent after 3 am.
Chance of pcpn......70 percent.
LAL.................1.
Min temperature.....Around 19.
Max humidity........100 percent.
Wind (20 ft)........East winds 20 to 22 mph.
Mixing height.......900-1700 ft agl.
Transport winds.....East 21 to 28 mph.
Smoke dispersal.....Poor (19300 knot-ft).
Haines Index........2 (very low).

TIME (CDT)      6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........99  99  99  99  98  98  98  99  98  98  98  98
Weather cov.....LKY CHC CHC SCH SCH PTY SCH SCH CHC CHC CHC LKY
Weather type....SN  SN  SN  SN  SN  BSN SN  SN  SN  SN  SN  SN
Tstm cov........
Chc of pcpn (%).60  40  30  20  20  10  20  20  30  40  50  70
Temp............23  22  21  20  19  19  20  19  19  20  19  19
RH..............87  97  96  95  99  99  98  99  99  93  95  95
20 FT wind dir..E   E   E   E   E   E   E   E   E   E   E   E
20 FT wind spd..21  20  20  20  20  20  20  20  21  22  22  22
20 FT wind gust.26  26  26  28  28  28  28  28  29  29  30  31
Smoke Dispersal.PR  PR  PR  PR  PR  PR  PR  PR  PR  PR  PR  PR

.SUNDAY...

Sky/weather.........Cloudy (95-100 percent). Patchy blowing snow
                    early in the morning. Areas of blowing snow in
                    the morning and early afternoon, then blowing
                    snow late in the afternoon. Snow through the
                    day.
CWR.................22 percent increasing to 85 percent in the
                    morning, then decreasing to 71 percent in the
                    afternoon.
Chance of pcpn......100 percent.
LAL.................1.
Max temperature.....Around 26.
Min humidity........93 percent.
Wind (20 ft)........Windy. Northeast winds 23 to 31 mph.
Mixing height.......1000-2100 ft agl.
Transport winds.....East 29 to 36 mph.
Smoke dispersal.....Poor (24900 knot-ft) early in the morning
                    increasing to good (64400 knot-ft) in the
                    afternoon.
Haines Index........2 (very low).

TIME (CDT)      6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........97  97  97  97  97  97  98  98  98  98  98  98
Weather cov.....DEF DEF DEF DEF DEF DEF DEF DEF DEF DEF DEF DEF
Weather type....SN  SN  SN  SN  SN  SN  SN  SN  SN  SN  SN  SN
Tstm cov........
Chc of pcpn (%).90  100 100 100 100 100 100 100 100 100 100 100
Temp............19  19  19  19  22  23  23  24  25  25  26  25
RH..............99  99  99  100 96  100 100 99  97  95  93  95
20 FT wind dir..E   E   E   E   E   E   NE  NE  NE  NE  NE  NE
20 FT wind spd..23  23  25  26  26  26  26  28  29  30  31  31
20 FT wind gust.31  32  33  35  35  35  35  36  37  38  39  39
Smoke Dispersal.PR  PR  PR  FR  FR  FR  FR  GD  GD  GD  GD  GD

$$
Forecaster...TMT
Requested by...Todd Ruzicka
Type of request...PRESCRIBED
.TAG 2408205.0/ABR
.DELDT 03/23/24
.FormatterVersion 2.0.0
.EMAIL todd_ruzicka@fws.gov


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