322
FNUS73 KFSD 301301
FWSFSD
SPOT FORECAST FOR TNC-HIM...THE NATURE CONSERVANCY
NATIONAL WEATHER SERVICE SIOUX FALLS SD
801 AM CDT THU APR 30 2026
IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE NATIONAL WEATHER
SERVICE.
DISCUSSION
ANOTHER MILD DAY IS AHEAD IN SOUTHWESTERN MN WITH HIGHS MAINLY IN
THE LOW 50S. AS MIXING INCREASE JUST AFTER DAYBREAK, SHOULD SEE
LIGHT NORTHEASTERLY WINDS GRADUALLY BECOME MORE NORTHWESTERLY INTO
THE EARLY AFTERNOON. CONDITIONS COULD BECOME MARGINALLY BREEZY
WITH 15-25 MPH GUSTS POSSIBLE THROUGH EARLY EVENING. OTHERWISE,
SMOKE DISPERSAL WILL GRADUALLY IMPROVE WITH THE INCREASING WIND
SPEEDS. LASTLY, ADDITIONAL SCATTERED SHOWERS WITH AN OCCASIONAL
RUMBLE OF THUNDER WILL BE POSSIBLE STARTING AS EARLY AS 12 PM AND
WILL INTERMITTENTLY CONTINUE THROUGH 10 PM OR LATER KEEPING OUR
RELATIVE HUMIDITY VALUES ELEVATED FOR THE DAY.
TODAY
MAX TEMPERATURE.....AROUND 50.
MIN HUMIDITY........44 PERCENT.
TIME (CDT) 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY COVER.......MCR MCR CLR MCR PC MC MC MC MC MC
SKY (%).........18 10 3 9 26 53 64 70 63 64
WEATHER COV.....ARS SCH SCH CHC CHC
WEATHER TYPE....FST RW RW RW RW
TSTM COV........ SCH SCH CHC CHC
CHC OF PCPN (%).10 0 0 0 0 10 20 20 30 30
CHC OF THDR (%).10 0 0 0 0 10 20 20 30 30
TEMP............37 39 41 42 45 46 47 48 49 48
DEWPOINT........27 28 27 26 27 27 27 27 28 29
RH..............67 64 57 53 49 47 45 44 44 47
20 FT WIND DIR..N N N N N NNW NW NW WNW NW
20 FT WIND SPD..8 9 9 9 10 13 13 14 14 14
20 FT WIND GUST.13 15 15 16 16 18 20 21 21 20
MIX HGT (KFT)...1.1 1.8 3.4 4.9 5.9 6.7 7.2 6.8 6.5 6.0
TRANSP WIND DIR.N N N N NNW NW NW NW WNW WNW
TRANSP WIND SPD.12 13 13 14 15 14 16 17 20 20
SMOKE DISPERSAL.PR FR GD GD EX EX EX EX EX EX
TONIGHT
MIN TEMPERATURE.....AROUND 30.
MAX HUMIDITY........89 PERCENT.
TIME (CDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY COVER.......MC MC MC MC MC MC PC PC PC PC PC PC
SKY (%).........62 57 55 56 58 57 47 40 31 33 37 31
WEATHER COV.....CHC CHC SCH SCH SCH SCH ARS ARS WID WID WID WID
WEATHER TYPE....RW RW RW RW RW RW FST FST FST FST FST FST
TSTM COV........CHC CHC SCH SCH SCH SCH SCH
CHC OF PCPN (%).30 30 20 20 20 20 20 20 10 10 10 10
CHC OF THDR (%).30 30 20 20 20 20 20 0 0 0 0 0
TEMP............47 46 42 40 38 37 36 35 34 33 32 31
DEWPOINT........30 30 31 31 32 31 32 30 30 30 28 28
RH..............51 53 65 70 79 79 85 82 85 89 85 88
20 FT WIND DIR..NW NW NNW NNW N N N N N N N N
20 FT WIND SPD..13 12 10 9 7 7 6 7 6 6 7 7
20 FT WIND GUST.18 17 15 13 12 12 10 12 10 10 12 10
MIX HGT (KFT)...5.0 4.2 0.7 0.9 0.7 0.6 0.3 0.4 0.7 0.7 0.6 0.4
TRANSP WIND DIR.WNW NW NNW N N N N N N N N N
TRANSP WIND SPD.20 20 10 14 12 10 10 12 12 12 12 12
SMOKE DISPERSAL.EX EX PR PR PR PR PR PR PR PR PR PR
FRIDAY
MAX TEMPERATURE.....AROUND 50.
MIN HUMIDITY........36 PERCENT.
TIME (CDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY COVER.......MCR PC PC PC PC PC PC PC PC PC MC PC
SKY (%).........23 36 40 34 31 31 35 43 43 42 51 44
WEATHER COV.....WID WID WID
WEATHER TYPE....FST FST FST
TSTM COV........
CHC OF PCPN (%).10 10 10 10 10 10 10 10 10 10 10 10
CHC OF THDR (%).0 0 0 0 0 0 0 0 0 0 0 0
TEMP............31 30 32 36 40 43 44 46 47 49 49 50
DEWPOINT........27 27 28 28 27 26 26 25 25 24 24 24
RH..............85 88 85 72 59 51 49 43 42 37 37 36
20 FT WIND DIR..N N N N N N N N N N N N
20 FT WIND SPD..7 7 8 10 12 13 14 14 14 14 14 13
20 FT WIND GUST.12 12 13 14 16 18 20 20 20 20 20 20
MIX HGT (KFT)...0.2 0.2 1.2 3.4 4.6 5.2 5.8 6.4 7.0 7.2 7.4 6.9
TRANSP WIND DIR.N N N N N N N N N N N N
TRANSP WIND SPD.9 9 12 16 17 16 17 17 17 17 17 17
SMOKE DISPERSAL.PR PR PR GD EX EX EX EX EX EX EX EX
FORECASTER...IG
REQUESTED BY...JOE BLASTICK
TYPE OF REQUEST...PRESCRIBED
.TAG 2612220.0/FSD
.DELDT 04/30/26
.FORMATTERVERSION 2.0.0
.EMAIL JBLASTICK@TNC.ORG
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