197
FNUS73 KABR 282247
FWSABR

Spot Forecast for Crystal Springs RX...SD GFP
National Weather Service Aberdeen SD
547 PM CDT Tue May 28 2024

Forecast is based on ignition time of 1000 CDT on May 29.
If conditions become unrepresentative...contact the National Weather
Service.

.DISCUSSION...

Surface high pressure overhead during the morning hours will mean
light winds out of the southeast, but those winds will be on the
increase slowly through the afternoon. Dry conditions will prevail
with showers and storms not expected into far eastern South
Dakota until the morning hours early Thursday.

.WEDNESDAY...

Sky/weather.........Sunny (0-10 percent).
CWR.................0 percent.
Chance of pcpn......0 percent.
LAL.................1.
Max temperature.....Around 70.
Min humidity........44 percent.
Wind (20 ft)........Southeast winds 7 to 14 mph.
Mixing height.......2600-4700 ft agl.
Transport winds.....Southeast 10 to 16 mph.
Smoke dispersal.....Poor (23400 knot-ft) early in the morning
                    increasing to good (65800 knot-ft) in the
                    afternoon.
Haines Index........3 (very low).

TIME (CDT)      10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........3   4   4   4   5   5   6   6
Weather cov.....
Weather type....
Tstm cov........
Chc of pcpn (%).0   0   0   0   0   0   0   0
Temp............59  61  63  65  66  68  69  70
RH..............60  58  56  52  50  47  45  44
20 FT wind dir..SE  SE  SE  SE  SE  SE  SE  SE
20 FT wind spd..7   8   10  12  13  13  14  14
20 FT wind gust.13  15  17  18  20  21  21  21
Mix hgt (kft)...2.6 3.2 3.8 4.2 4.5 4.6 4.6 4.7
Smoke Dispersal.PR  PR  PR  FR  FR  FR  GD  GD

.WEDNESDAY NIGHT...

Sky/weather.........Mostly clear (20-30 percent). Slight chance of
                    rain showers early in the morning.
CWR.................4 percent.
Chance of pcpn......20 percent.
LAL.................1.
Min temperature.....Around 54.
Max humidity........77 percent.
Wind (20 ft)........Southeast winds 14 to 16 mph.
Mixing height.......400-4600 ft agl.
Transport winds.....South 16 to 21 mph.
Smoke dispersal.....Good (69700 knot-ft) early in the evening
                    decreasing to poor (5500 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 (%).........7   8   10  12  14  17  19  21  26  31  36  41
Weather cov.....                                            SCH
Weather type....                                            RW
Tstm cov........
Chc of pcpn (%).0   0   0   0   0   0   10  10  10  10  10  20
Temp............69  68  64  60  56  55  55  54  54  54  54  54
RH..............44  45  52  60  66  69  69  71  71  71  74  74
20 FT wind dir..SE  SE  SE  SE  SE  SE  SE  SE  SE  S   S   S
20 FT wind spd..14  14  14  14  14  14  14  14  14  15  16  16
20 FT wind gust.21  22  21  21  21  21  21  22  23  24  25  26
Mix hgt (kft)...4.6 2.8 0.8 0.6 0.4 0.4 0.4 0.4 0.5 0.5 0.6 0.5
Smoke Dispersal.GD  PR  PR  PR  PR  PR  PR  PR  PR  PR  PR  PR

.THURSDAY...

Sky/weather.........Partly sunny (60-70 percent) then becoming
                    cloudy (85-95 percent). Chance of rain showers
                    in the morning. Slight chance of thunderstorms
                    late in the morning, then rain showers and
                    chance of thunderstorms in the afternoon.
CWR.................4 percent increasing to 59 percent.
Chance of pcpn......80 percent.
LAL.................1 until 1000, then 2 until 1300, then 3.
Max temperature.....Around 71.
Min humidity........65 percent.
Wind (20 ft)........South winds 16 to 21 mph. Gusty and erratic
                    winds expected near thunderstorms in the late
                    morning and afternoon.
Mixing height.......500-2700 ft agl.
Transport winds.....South 21 to 30 mph increasing to 25 to 32 mph
                    in the late morning and afternoon.
Smoke dispersal.....Poor (9600 knot-ft) early in the morning
                    increasing to good (66000 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 (%).........46  51  54  57  60  69  77  86  87  87  88  88
Weather cov.....    CHC CHC CHC CHC CHC CHC DEF DEF DEF DEF DEF
Weather type....    RW  RW  RW  RW  RW  RW  RW  RW  RW  RW  RW
Tstm cov........                SCH SCH SCH CHC CHC CHC CHC CHC
Chc of pcpn (%).10  50  50  50  50  50  50  80  80  80  80  80
Temp............54  56  59  64  68  70  71  71  66  66  66  66
RH..............77  69  68  66  65  65  66  68  68  69  70  72
20 FT wind dir..S   S   S   S   S   S   S   S   S   S   S   S
20 FT wind spd..17  18  20  20  21  21  21  21  21  20  18  16
20 FT wind gust.26  28  29  29  30  30  30  30  30  29  28  25
Mix hgt (kft)...0.5 0.7 1.0 1.5 1.9 2.1 2.3 2.4 2.6 2.7 2.6 2.2
Smoke Dispersal.PR  PR  PR  PR  FR  FR  GD  GD  GD  GD  GD  FR

$$
Forecaster...Connelly
Requested by...Brett Blank
Type of request...PRESCRIBED
.TAG 2415164.1/ABR
.DELDT 05/28/24
.FormatterVersion 2.0.0
.EMAIL Brett.blank@state.sd.us