594
FNUS73 KFSD 201451
FWSFSD
SPOT FORECAST FOR GRUNFLUR WMA...MN DNR
NATIONAL WEATHER SERVICE SIOUX FALLS SD
951 AM CDT WED MAY 20 2026
IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE NATIONAL WEATHER
SERVICE.
DISCUSSION
QUIET WEATHER AHEAD TODAY WITH ABUNDANT SUNSHINE AND LIGHT WINDS. IT
WILL BE THE LIGHT WINDS THAT WILL BE THE BIGGEST CHALLENGE THROUGH
THE DAY. THE OVERALL TENDENCY WILL TO TRANSITION TO A MORE EAST TO
SOUTHEAST DIRECTION, BUT THROUGH EARLY AFTERNOON THIS MAY BE A
BIT VARIABLE.
REST OF TODAY
MAX TEMPERATURE.....AROUND 63.
MIN HUMIDITY........39 PERCENT.
TIME (CDT) 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY COVER.......CLR CLR MCR MCR PC PC PC PC
SKY (%).........5 2 10 15 29 35 40 48
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CHC OF PCPN (%).0 0 0 0 0 0 0 0
CHC OF THDR (%).0 0 0 0 0 0 0 0
TEMP............53 55 57 58 60 62 63 63
DEWPOINT........37 37 36 36 39 38 38 38
RH..............56 50 46 43 46 41 39 39
20 FT WIND DIR..SE ESE ESE ESE ESE ESE ESE ESE
20 FT WIND SPD..2 3 3 5 5 5 6 7
20 FT WIND GUST.6 7 7 7 7 8 9 10
MIX HGT (KFT)...3.9 4.6 4.8 5.2 5.5 5.6 5.5 5.4
TRANSP WIND DIR.NNE NNE ENE E E ESE ESE ESE
TRANSP WIND SPD.8 7 7 7 6 6 7 7
SMOKE DISPERSAL.FR FR FR GD FR FR GD GD
TONIGHT
MIN TEMPERATURE.....AROUND 42.
MAX HUMIDITY........93 PERCENT.
TIME (CDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY COVER.......MC MC MC CDY MC MC MC MC MC MC MC MC
SKY (%).........64 62 82 91 77 73 74 80 81 80 74 79
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CHC OF PCPN (%).0 0 0 0 0 0 0 0 0 0 0 0
CHC OF THDR (%).0 0 0 0 0 0 0 0 0 0 0 0
TEMP............62 62 59 55 52 51 50 48 48 45 44 44
DEWPOINT........38 39 39 39 38 38 38 38 38 38 39 39
RH..............41 43 47 55 59 61 63 68 68 76 82 82
20 FT WIND DIR..ESE ESE ESE ESE ESE SE SE SE SE SE SE SE
20 FT WIND SPD..7 8 7 7 7 7 7 7 7 6 7 7
20 FT WIND GUST.10 10 12 12 13 12 12 13 12 12 12 12
MIX HGT (KFT)...5.1 4.3 0.5 0.5 0.5 0.4 0.5 0.5 0.5 0.5 0.5 0.5
TRANSP WIND DIR.SE SE ESE ESE ESE ESE SE ESE SSE SSE SSE SSE
TRANSP WIND SPD.8 8 9 10 10 10 10 12 12 12 12 12
SMOKE DISPERSAL.GD GD PR PR PR PR PR PR PR PR PR PR
THURSDAY
MAX TEMPERATURE.....AROUND 66.
MIN HUMIDITY........42 PERCENT.
TIME (CDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY COVER.......MC MC PC PC PC PC PC PC MCR PC MCR MCR
SKY (%).........85 85 39 35 34 30 27 33 22 29 23 12
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CHC OF PCPN (%).0 0 0 0 0 0 0 0 0 0 0 0
CHC OF THDR (%).0 0 0 0 0 0 0 0 0 0 0 0
TEMP............42 44 48 51 58 60 62 63 64 65 65 66
DEWPOINT........40 40 41 42 42 42 42 43 43 43 42 42
RH..............93 86 77 71 55 51 48 48 46 45 43 42
20 FT WIND DIR..SE SE SE SE SE SE SE SE SE SE SE SE
20 FT WIND SPD..7 7 8 9 12 13 14 14 14 15 14 15
20 FT WIND GUST.12 13 14 15 17 18 20 21 22 22 22 21
MIX HGT (KFT)...0.5 0.5 1.5 2.3 3.8 4.8 5.5 5.3 5.5 5.8 5.8 5.7
TRANSP WIND DIR.SSE SSE SSE SSE SSE SSE SSE SSE SSE SSE SSE SSE
TRANSP WIND SPD.12 13 15 16 17 17 18 18 18 20 18 20
SMOKE DISPERSAL.PR PR FR GD GD EX EX EX EX EX EX EX
FORECASTER...WEISSER
REQUESTED BY...CHAD AUGUST
TYPE OF REQUEST...PRESCRIBED
.TAG 2614127.0/FSD
.DELDT 05/20/26
.FORMATTERVERSION 2.0.0
.EMAIL CHAD.AUGUST@STATE.MN.US
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