904
FNUS73 KFSD 151904
FWSFSD
SPOT FORECAST FOR PRAIRIE MARSHES RX FIRE...MN DNR- WILDLIFE
NATIONAL WEATHER SERVICE SIOUX FALLS SD
204 PM CDT FRI MAY 15 2026
IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE NATIONAL WEATHER
SERVICE.
..RED FLAG WARNING IN EFFECT UNTIL 6 PM CDT THIS EVENING
DISCUSSION
WINDS TO START SATURDAY MAY BE VERY LIGHT AT THE SURFACE, BUT
WILL EVENTUALLY BEGIN TO TRANSITION MORE TOWARDS THE NORTH
NORTHWEST BY MIDDAY. TRANSPORT WINDS THROUGH THE MORNING WILL BE
STRONGER THAN WINDS ALOFT, AGAIN FAVORING A NORTHWEST TO SOUTHEAST
TRAJECTORY. MIXING HEIGHTS AT OR AROUND 5000-6000 FT AGL ARE
LIKELY AT PEAK HEATING.
SATURDAY
MAX TEMPERATURE.....AROUND 79.
MIN HUMIDITY........20 PERCENT.
TIME (CDT) 12P 1PM 2PM 3PM 4PM 5PM
SKY COVER.......MCR MCR MCR CLR MCR PC
SKY (%).........11 12 16 5 12 26
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CHC OF PCPN (%).0 0 0 0 0 0
CHC OF THDR (%).0 0 0 0 0 0
TEMP............73 74 77 77 77 78
DEWPOINT........34 34 34 34 34 34
RH..............24 23 21 21 21 20
20 FT WIND DIR..NNW NNW N N NE NE
20 FT WIND SPD..8 8 8 8 8 9
20 FT WIND GUST.13 13 13 13 13 14
MIX HGT (KFT)...4.9 5.4 5.8 6.2 6.2 6.0
TRANSP WIND DIR.NNW NNW NNW NNW N NE
TRANSP WIND SPD.13 12 10 10 8 9
SMOKE DISPERSAL.GD GD GD GD GD GD
SATURDAY NIGHT
MIN TEMPERATURE.....AROUND 52.
MAX HUMIDITY........80 PERCENT.
TIME (CDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY COVER.......PC PC PC PC PC PC MC MC MC MC MC MC
SKY (%).........30 31 29 28 38 47 55 59 72 66 80 79
WEATHER COV..... SCH CHC CHC
WEATHER TYPE.... RW RW RW
TSTM COV........ SCH CHC CHC
CHC OF PCPN (%).0 0 0 0 0 0 0 0 10 20 40 50
CHC OF THDR (%).0 0 0 0 0 0 0 0 10 20 40 50
TEMP............77 76 74 68 65 63 62 61 60 58 57 56
DEWPOINT........34 35 36 36 36 37 38 39 41 42 44 45
RH..............21 22 25 31 34 38 41 44 49 55 62 66
20 FT WIND DIR..ENE E E E E E E E E E E ESE
20 FT WIND SPD..10 12 12 12 13 13 14 14 16 17 18 20
20 FT WIND GUST.15 16 16 17 18 20 20 21 23 24 25 26
MIX HGT (KFT)...5.7 4.5 0.9 0.8 0.6 0.6 0.7 0.7 0.7 0.7 0.9 1.0
TRANSP WIND DIR.E E ENE E E E E E E E ESE ESE
TRANSP WIND SPD.10 12 13 15 16 17 17 17 16 17 20 20
SMOKE DISPERSAL.GD GD PR PR PR PR PR PR PR PR FR FR
SUNDAY
MAX TEMPERATURE.....AROUND 77.
MIN HUMIDITY........60 PERCENT.
TIME (CDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY COVER.......CDY CDY CDY CDY MC MC MC MC MC MC MC MC
SKY (%).........94 99 98 92 86 80 75 69 70 70 71 71
WEATHER COV.....DEF DEF DEF DEF DEF DEF DEF LKY LKY LKY DEF DEF
WEATHER TYPE....RW RW RW RW RW RW RW RW RW RW RW RW
TSTM COV........DEF SCH SCH SCH SCH SCH SCH LKY LKY LKY DEF DEF
CHC OF PCPN (%).80 90 90 90 90 90 90 60 60 60 90 90
CHC OF THDR (%).80 20 20 20 20 20 20 60 60 60 90 90
TEMP............53 56 56 58 61 64 67 70 72 75 76 76
DEWPOINT........46 48 50 52 54 56 57 58 59 60 61 62
RH..............77 74 80 80 78 75 70 66 64 60 60 62
20 FT WIND DIR..ESE ESE ESE SE SE SE SE SE SE SSE SSE SSE
20 FT WIND SPD..20 20 20 20 20 20 21 21 20 18 17 15
20 FT WIND GUST.28 28 26 26 28 29 29 29 28 26 25 23
MIX HGT (KFT)...1.4 1.2 1.7 1.8 1.9 2.1 2.4 2.6 2.8 3.0 3.3 2.7
TRANSP WIND DIR.E ESE ESE ESE SE SE SSE S S SSE SSE SSE
TRANSP WIND SPD.20 21 20 20 20 20 21 21 21 20 18 17
SMOKE DISPERSAL.FR FR FR FR GD GD GD GD GD GD GD GD
FORECASTER...DUX
REQUESTED BY...TROY DALE
TYPE OF REQUEST...PRESCRIBED
.TAG 2613723.0/FSD
.DELDT 05/15/26
.FORMATTERVERSION 2.0.0
.EMAIL TROY.DALE@STATE.MN.US
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