284
FNUS73 KABR 062137
FWSABR

Spot Forecast for Roy Lake RX...State of South Dakota
National Weather Service Aberdeen SD
437 PM CDT Mon May 6 2024

Forecast is based on ignition time of 1700 CDT on May 06.
If conditions become unrepresentative...contact the National Weather
Service.

...WIND ADVISORY IN EFFECT UNTIL MIDNIGHT CDT TONIGHT...

.DISCUSSION...
There is currently a Wind Advisory for strong winds over 45 mph in
effect until midnight tonight! Wind gusts will remain over 37 mph
through Tuesday.

.REST OF TODAY...

Sky/weather.........Cloudy (90-100 percent). Showers likely and
                    chance of thunderstorms.
CWR.................27 percent.
Chance of pcpn......60 percent.
LAL.................3.
Max temperature.....Around 66.
Min humidity........60 percent.
Wind (20 ft)........Windy. Southeast winds around 33 mph with gusts
                    to around 52 mph. Gusty and erratic winds
                    expected near thunderstorms.
Mixing height.......2000 ft agl.
Transport winds.....Southeast around 36 mph.
Smoke dispersal.....Good (61200 knot-ft).
Haines Index........3 (very low).

TIME (CDT)      5PM
Sky (%).........96
Weather cov.....LKY
Weather type....RW
Tstm cov........CHC
Chc of pcpn (%).60
Temp............64
RH..............75
20 FT wind dir..SE
20 FT wind spd..33
20 FT wind gust.52
Mix hgt (kft)...2.0
Smoke Dispersal.GD

.TONIGHT...

Sky/weather.........Cloudy (85-95 percent). Rain showers in the
                    evening. Chance of thunderstorms through the
                    night. Chance of rain showers overnight.
CWR.................27 percent increasing to 88 percent, then
                    decreasing to 12 percent overnight.
Chance of pcpn......90 percent.
LAL.................2 to 3, then 1 after 4 AM.
Min temperature.....Around 49.
Max humidity........96 percent.
Wind (20 ft)........Windy. Southeast winds 26 to 33 mph. Gusts up
                    to 53 mph decreasing to 44 mph overnight. Gusty
                    and erratic winds expected near thunderstorms.
Mixing height.......600-1700 ft agl.
Transport winds.....Southeast 28 to 36 mph decreasing to 24 to 26
                    mph after 3 am.
Smoke dispersal.....Fair (51600 knot-ft) early in the evening
                    decreasing to poor (16100 knot-ft) late in the
                    night.
Haines Index........3 to 4 or (very low) to (low).

TIME (CDT)      6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........99  99  100 100 98  99  97  96  97  96  86  84
Weather cov.....LKY LKY DEF DEF DEF LKY CHC CHC CHC SCH
Weather type....RW  RW  RW  RW  RW  RW  RW  RW  RW  RW
Tstm cov........CHC CHC CHC CHC SCH SCH SCH CHC CHC SCH
Chc of pcpn (%).70  70  80  80  90  70  50  40  30  20  10  10
Temp............62  61  61  59  59  58  56  55  54  53  51  50
RH..............81  81  78  83  83  86  93  93  93  93  96  93
20 FT wind dir..SE  SE  SE  SE  SE  SE  SE  SE  SE  SE  SE  SE
20 FT wind spd..33  33  33  32  31  30  30  29  28  28  26  26
20 FT wind gust.52  52  52  53  51  44  40  44  41  43  38  39
Mix hgt (kft)...1.7 1.2 0.8 0.6 0.7 0.7 0.7 0.7 0.7 0.9 0.9 0.8
Smoke Dispersal.FR  PR  PR  PR  PR  PR  PR  PR  PR  PR  PR  PR

.TUESDAY...

Sky/weather.........Partly sunny (60-70 percent). Slight chance of
                    rain showers late in the afternoon.
CWR.................7 percent.
Chance of pcpn......20 percent.
LAL.................1.
Max temperature.....Around 58.
Min humidity........53 percent.
Wind (20 ft)........Breezy. South winds 21 to 25 mph with gusts to
                    around 40 mph.
Mixing height.......1000-4400 ft agl.
Transport winds.....South 24 to 32 mph.
Smoke dispersal.....Poor (20400 knot-ft) early in the morning
                    increasing to very good (119900 knot-ft) in the
                    afternoon.
Haines Index........3 to 4 or (very low) to (low).

TIME (CDT)      6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........82  63  54  44  66  76  75  78  79  75  70  70
Weather cov.....                                SCH SCH SCH SCH
Weather type....                                RW  RW  RW  RW
Tstm cov........
Chc of pcpn (%).10  10  10  10  10  10  10  10  20  20  20  20
Temp............49  49  51  53  54  56  56  58  56  56  56  58
RH..............93  89  80  74  71  64  64  59  64  62  59  55
20 FT wind dir..S   S   S   S   S   S   S   S   S   S   S   S
20 FT wind spd..25  25  25  24  24  24  23  23  23  22  21  21
20 FT wind gust.38  38  37  38  39  38  39  38  39  39  40  38
Mix hgt (kft)...1.0 1.1 2.0 3.1 4.2 4.4 4.2 4.2 4.2 4.2 4.4 4.2
Smoke Dispersal.PR  PR  FR  GD  VGD VGD VGD VGD VGD VGD VGD VGD

$$
Forecaster...KF
Requested by...Quentin Cordell
Type of request...PRESCRIBED
.TAG 2413293.0/ABR
.DELDT 05/06/24
.FormatterVersion 2.0.0
.EMAIL Quentin.cordell@state.sd.us