Suppression Forecast
Issued by NWS Aberdeen, SD

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299
FNUS73 KABR 251238
FWSABR

Spot Forecast for Dismal Swamp...US Fish and Wildlife Service
National Weather Service Aberdeen SD
738 AM CDT Wed Apr 25 2018

Forecast is based on ignition time of 1100 CDT on April 25.
If conditions become unrepresentative...contact the National Weather
Service in Aberdeen SD.

.DISCUSSION...
Surface high pressure over the area will bring sunny skies with
light winds becoming southwest at 5 to 10 mph.

.TODAY...

Sky/weather.........Sunny (0-10 percent cloud).
Max temperature.....60-65.
Min humidity........25-30 percent.
Wind (20 ft)........Light winds becoming southwest 5 to 10 mph
                    early in the morning.
CWR.................0 percent.
LAL.................1.
Mixing height.......300-800 ft agl increasing to 4400-5400 ft agl
                    in the late morning and afternoon.
Transport winds.....Southwest 4 to 9 mph increasing to 13 to 18 mph
                    late in the afternoon.
Smoke dispersal.....Poor (2500-41200) increasing to good late in
                    the afternoon.
Haines Index........4 (low).

TIME (CDT)      11A 12P 1PM 2PM 3PM 4PM 5PM 6PM
Sky (%).........1   2   2   2   2   2   6   9
Weather cov.....
Weather type....
Tstm cov........
Temp............49  53  55  58  59  61  62  61
RH..............44  38  34  32  31  30  28  30
20 FT wind dir..SW  SW  SW  SW  SW  SW  SW  SW
20 FT wind spd..7   7   7   8   9   10  10  10
20 FT wind gust.10  10  10  10  15  15  15  15

.TONIGHT...

Sky/weather.........Partly cloudy (20-30 percent cloud) then
                    becoming mostly cloudy (60-70 percent cloud).
Min temperature.....38-43.
Max humidity........74-79 percent.
Wind (20 ft)........Southwest winds 8 to 12 mph shifting to the
                    northwest around 14 mph with gusts to around 20
                    mph early in the morning.
CWR.................0 percent.
LAL.................1.
Mixing height.......100-600 ft agl.
Transport winds.....Southwest 14 to 20 mph.
Smoke dispersal.....Poor (3100-3700).
Haines Index........4 (low).

TIME (CDT)      7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM 6AM
Sky (%).........13  17  22  27  27  27  28  41  54  66  69  71
Weather cov.....
Weather type....
Tstm cov........
Temp............59  56  52  49  46  45  44  42  41  40  40  40
RH..............34  40  49  56  63  66  68  72  73  76  77  79
20 FT wind dir..SW  SW  S   S   S   S   S   S   S   S   SW  NW
20 FT wind spd..9   9   8   8   8   8   8   8   8   9   12  14
20 FT wind gust.15  15  10  10  10  10  10  10  10  15  15  20

.THURSDAY...

Sky/weather.........Partly sunny (50-60 percent cloud) then
                    becoming sunny (5-15 percent cloud). A slight
                    chance of showers in the morning.
Max temperature.....54-59.
Min humidity........28-33 percent.
Wind (20 ft)........Northwest winds 16 to 21 mph with gusts to
                    around 30 mph.
CWR.................0 percent.
LAL.................1.
Mixing height.......100-600 ft agl increasing to 5000-6000 ft agl
                    in the late morning and afternoon.
Transport winds.....North 30 to 38 mph decreasing to 26 to 31 mph
                    late in the afternoon.
Smoke dispersal.....Poor increasing to very good (107000-144500) in
                    the late morning and afternoon.
Haines Index........4 (low).

TIME (CDT)      7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM 6PM
Sky (%).........74  56  38  20  15  10  5   4   2   1   2   2
Weather cov.....SCH SCH SCH SCH SCH SCH
Weather type....RW  RW  RW  RW  RW  RW
Tstm cov........
Temp............41  43  46  48  50  51  52  54  55  56  56  55
RH..............79  70  63  56  50  44  41  35  32  30  30  31
20 FT wind dir..N   N   N   N   N   N   N   N   N   N   N   NW
20 FT wind spd..16  18  20  21  21  21  21  21  20  20  18  17
20 FT wind gust.25  25  30  30  30  30  30  30  30  30  25  25

$$
Forecaster...Mohr
Requested by...Phil Millette
Type of request...PRESCRIBED
.TAG 1807772.0/ABR
.EMAIL phil_millette@fws.gov



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