635
FNUS73 KABR 091330
FWSABR

Spot Forecast for Dybvig RX...SD GFP
National Weather Service Aberdeen SD
830 AM CDT Thu May 9 2024

Forecast is based on ignition time of 2200 CDT on May 09.
If conditions become unrepresentative...contact the National Weather
Service.

.DISCUSSION...

Northeast winds expected this morning turning more northerly by
this afternoon. Sustained winds will be between 10 to 15 mph.
Friday, winds will go from west to northwest early in the morning
with sustained winds increasing to 15 to 20 mph by the afternoon
with gusts 25 to 35 mph. Minimum relative humidity values this
afternoon will be around 45%, dropping to around 30% Friday
afternoon.

.FRIDAY...

Sky/weather.........Partly sunny (20-30 percent) then becoming
                    mostly sunny (10-20 percent).
CWR.................0 percent.
Chance of pcpn......0 percent.
LAL.................1.
Max temperature.....Around 69.
Min humidity........31 percent.
Wind (20 ft)........Northwest winds 8 to 17 mph increasing to 18 to
                    21 mph in the afternoon.
Mixing height.......400-8400 ft agl.
Transport winds.....Northwest 14 to 20 mph increasing to 24 to 30
                    mph in the late morning and afternoon.
Smoke dispersal.....Poor (4800 knot-ft) early in the morning
                    increasing to good (70200 knot-ft) in the
                    afternoon increasing to excellent (166300
                    knot-ft) late in the morning.
Haines Index........5 (moderate).

TIME (CDT)      6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........34  34  25  17  4   6   17  26  29  26  23  22
Weather cov.....
Weather type....
Tstm cov........
Chc of pcpn (%).0   0   0   0   0   0   0   0   0   0   0   0
Temp............48  48  53  57  62  64  65  67  67  68  69  68
RH..............80  83  74  64  54  46  40  34  33  32  31  31
20 FT wind dir..W   NW  NW  NW  NW  NW  NW  NW  NW  NW  NW  NW
20 FT wind spd..8   9   12  13  15  17  18  21  21  21  21  20
20 FT wind gust.12  14  17  20  22  24  26  29  29  29  29  28
Mix hgt (kft)...0.4 0.4 1.0 1.5 3.3 6.7 7.2 7.9 7.8 8.2 8.4 7.3
Smoke Dispersal.PR  PR  PR  PR  GD  EXL EXL EXL EXL EXL EXL EXL

.FRIDAY NIGHT...

Sky/weather.........Mostly clear (10-20 percent).
CWR.................0 percent.
Chance of pcpn......0 percent.
LAL.................1.
Min temperature.....Around 44.
Max humidity........68 percent.
Wind (20 ft)........Northwest winds 9 to 18 mph decreasing to 7 to
                    8 mph late in the evening, then shifting to the
                    west 6 to 7 mph after 3 am.
Mixing height.......200-5500 ft agl.
Transport winds.....Northwest 16 to 24 mph decreasing to 8 to 14
                    mph in the late evening and overnight, then
                    shifting to the west 8 to 9 mph after 3 am.
Smoke dispersal.....Very good (113300 knot-ft) early in the evening
                    decreasing to poor (13700 knot-ft) late in the
                    night decreasing to poor (1400 knot-ft) in the
                    late evening and overnight.
Haines Index........5 (moderate).

TIME (CDT)      6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........22  20  17  14  11  12  12  13  14  14  15  15
Weather cov.....
Weather type....
Tstm cov........
Chc of pcpn (%).0   0   0   0   0   0   0   0   0   0   0   0
Temp............67  66  62  58  54  52  50  48  47  46  45  45
RH..............32  32  37  44  50  52  56  58  60  66  68  67
20 FT wind dir..NW  NW  NW  NW  NW  NW  NW  NW  W   W   W   W
20 FT wind spd..18  17  15  12  9   8   7   7   7   7   7   6
20 FT wind gust.25  25  22  17  14  12  10  10  10  10  10  10
Mix hgt (kft)...5.5 3.7 2.3 1.2 0.4 0.2 0.2 0.4 0.4 0.4 0.4 0.3
Smoke Dispersal.VGD GD  PR  PR  PR  PR  PR  PR  PR  PR  PR  PR

$$
Forecaster...MMM
Requested by...Brett Blank
Type of request...PRESCRIBED
.TAG 2413566.1/ABR
.DELDT 05/09/24
.FormatterVersion 2.0.0
.EMAIL brett.blank@state.sd.us