Suppression Forecast
Issued by NWS Aberdeen, SD

Current Version | Previous Version | Text Only | Print | Product List | Glossary On
Versions: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28
000
FNUS73 KABR 231531
FWSABR

Spot Forecast for Ortley GPA...SD GFP
National Weather Service Aberdeen SD
1031 AM CDT Sun Apr 23 2017

Forecast is based on ignition time of 1100 CDT on April 23.
If conditions become unrepresentative...contact the National Weather
Service in Aberdeen SD.

.DISCUSSION...A front is sitting just to the south of the burn
site. This front is going to wobble north today, but the burn area
will be right on the edge all day. This will have consequences for
high temperature, RH and wind direction. If the front is to the
north, winds will shift to the southeast and south and become
gusty. This is likely to occur during peak heating this afternoon
between 1pm and 3pm. Before the front shifts, winds will be
lighter and mainly out of the east.

.REST OF TODAY...

Sky/weather.........Mostly sunny (45-55 percent cloud).
Max temperature.....64-69.
Min humidity........31-36 percent.
Wind (20 ft)........Southeast winds 13 to 15 mph with gusts up to
                    20 mph.
CWR.................0 percent.
LAL.................1.
Mixing height.......2000-2500 ft agl...increasing to 7600-8100 ft
                    agl.
Transport winds.....South 11 to 20 mph.
Smoke dispersal.....Poor...increasing to very good.
Haines Index........5 (moderate).

TIME (CDT)      11A 12P 1PM 2PM 3PM 4PM 5PM 6PM
Sky (%).........46  46  45  46  47  49  52  55
Weather cov.....
Weather type....
Tstm cov........
Temp............47  51  57  60  61  63  63  62
RH..............76  63  53  44  41  36  36  37
20 FT wind dir..E   E   E   SE  SE  SE  SE  E
20 FT wind spd..13  14  14  15  13  14  15  15
20 FT wind gust.20  20  20  20  20  20  20  20

.TONIGHT...

Sky/weather.........Mostly cloudy (60-70 percent cloud). A slight
                    chance of showers after midnight.
Min temperature.....44-49.
Max humidity........69-74 percent.
Wind (20 ft)........South winds 10 to 15 mph with gusts up to 20
                    mph.
CWR.................0 percent.
LAL.................1.
Mixing height.......100-600 ft agl.
Transport winds.....South 18 to 27 mph.
Smoke dispersal.....Poor (4100-5200).
Haines Index........5 (moderate).

TIME (CDT)      7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM 6AM
Sky (%).........55  58  61  64  67  71  74  74  74  74  74  77
Weather cov.....                            SCH SCH SCH SCH SCH
Weather type....                            RW  RW  RW  RW  RW
Tstm cov........
Temp............64  60  56  52  49  48  48  47  47  46  46  46
RH..............34  41  51  63  68  68  65  68  68  71  73  73
20 FT wind dir..E   E   E   E   SE  SE  SE  SE  SE  SE  S   S
20 FT wind spd..15  12  10  10  10  10  13  12  13  13  13  12
20 FT wind gust.20  15  15  15  15  15  15  15  15  15  15  15

.MONDAY...

Sky/weather.........Mostly cloudy (80-90 percent cloud). A chance
                    of showers.
Max temperature.....58-63.
Min humidity........53-58 percent.
Wind (20 ft)........Northwest winds 12 to 15 mph with gusts up to
                    20 mph.
CWR.................32 percent.
LAL.................1.
Mixing height.......100-600 ft agl...increasing to 3400-4400 ft agl
                    in the late morning and afternoon.
Transport winds.....South 22 to 27 mph...becoming southwest 15 to
                    20 mph late.
Smoke dispersal.....Poor...increasing to good (66300-80800) 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 (%).........80  83  87  91  89  87  85  85  85  84  83  82
Weather cov.....CHC CHC CHC CHC CHC CHC CHC CHC CHC CHC CHC CHC
Weather type....RW  RW  RW  RW  RW  RW  RW  RW  RW  RW  RW  RW
Tstm cov........
Temp............47  49  52  55  56  56  57  58  59  59  57  55
RH..............74  71  63  59  59  59  59  59  57  57  59  61
20 FT wind dir..S   S   S   S   S   S   S   SW  W   W   W   NW
20 FT wind spd..12  13  13  14  14  15  15  15  14  13  13  13
20 FT wind gust.15  15  20  20  20  20  20  20  20  15  15  15

$$
Forecaster...Wise
Requested by...Owen McElroy
Type of request...PRESCRIBED
.TAG 1707581.0/ABR
.EMAIL owen.mcelroy@state.sd.us


USA.gov is the U.S. government's official web portal to all federal, state and local government web resources and services.