336
FNUS73 KFSD 161017
FWSFSD
SPOT FORECAST FOR CROSBIE WILDLIFE...OBRIEN COUNTY CONSERVATION BOARD
NATIONAL WEATHER SERVICE SIOUX FALLS SD
517 AM CDT THU APR 16 2026
IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE NATIONAL WEATHER
SERVICE.
DISCUSSION
CALM TO LIGHT WINDS THIS MORNING SHIFT SOUTHERLY, WITH GUSTS
AROUND 25 MPH THIS AFTERNOON AND EVENING. NEAR CRITICAL FIRE
CONDITIONS EXPECTED LATER TODAY DUE TO THESE BREEZY SOUTHERLY
WINDS, MINIMUM RELATIVE HUMIDITY AROUND 20% AND TEMPERATURES NEAR
80. FIRES MAY SPREAD QUICKLY DUE TO THE DRY CONDITIONS. IF MIXING
IS MORE EFFICIENT THAN EXPECTED, HUMIDITY MAY BE LOWER AND WINDS
STRONGER THIS AFTERNOON AND EVENING LEADING TO MORE RAPID FIRE
GROWTH.
WINDS REMAIN STRONG THROUGH THE OVERNIGHT HOURS, SHIFTING TO THE
NORTHWEST LATE FRIDAY MORNING BEHIND A COLD FRONT. ISOLATED TO
SCATTERED SHOWERS/STORMS ARE EXPECTED FRIDAY MORNING INTO EARLY
AFTERNOON. HUMIDITY VALUES WILL BE HIGHER TOMORROW BUT NORTHWEST
WINDS WILL BE STRONGER, GUSTING AROUND 30-35 MPH BY THE MID TO
LATE AFTERNOON.
REST OF TODAY
MAX TEMPERATURE.....AROUND 81.
MIN HUMIDITY........21 PERCENT.
TIME (CDT) 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY COVER.......MCR CLR CLR CLR CLR CLR CLR CLR CLR CLR
SKY (%).........6 5 3 1 1 1 2 1 1 4
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CHC OF PCPN (%).0 0 0 0 0 0 0 0 0 0
CHC OF THDR (%).M M M M M M M M M M
TEMP............48 54 63 68 70 74 78 79 80 81
DEWPOINT........44 44 46 46 46 46 45 42 39 38
RH..............86 69 54 45 42 37 31 27 23 21
20 FT WIND DIR..S S S S S S S S S SSW
20 FT WIND SPD..7 9 12 15 17 20 20 20 20 20
20 FT WIND GUST.12 14 16 20 23 25 26 26 26 25
MIX HGT (KFT)...0.4 0.6 1.2 2.1 2.8 3.1 3.4 5.1 6.5 7.9
TRANSP WIND DIR.S S S S S S S SSW SW SW
TRANSP WIND SPD.13 17 20 23 24 23 23 24 26 26
SMOKE DISPERSAL.PR PR FR GD GD EX EX EX EX EX
TONIGHT
MIN TEMPERATURE.....AROUND 52.
MAX HUMIDITY........100 PERCENT.
TIME (CDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY COVER.......CLR MCR MCR MCR MCR MCR MCR MCR MCR MCR MCR PC
SKY (%).........4 6 6 7 7 10 20 19 19 14 22 27
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CHC OF PCPN (%).0 0 0 0 0 0 0 0 0 0 0 0
CHC OF THDR (%).M M M M M M M M M M M M
TEMP............79 77 73 67 65 64 63 62 60 58 58 57
DEWPOINT........36 35 35 37 39 41 43 45 47 49 52 53
RH..............21 22 25 33 38 43 48 54 62 72 80 86
20 FT WIND DIR..S S S S S S S S S S S S
20 FT WIND SPD..18 16 16 16 16 17 17 18 18 18 18 17
20 FT WIND GUST.24 23 23 23 23 25 25 25 25 25 25 24
MIX HGT (KFT)...6.4 0.8 0.5 0.6 0.7 0.7 0.8 0.8 0.8 0.9 0.8 0.9
TRANSP WIND DIR.SSW SSW S S S S S S S S S S
TRANSP WIND SPD.26 20 17 20 22 24 25 26 24 24 22 22
SMOKE DISPERSAL.EX FR PR PR PR FR FR FR FR FR FR FR
FRIDAY
MAX TEMPERATURE.....AROUND 69.
MIN HUMIDITY........42 PERCENT.
TIME (CDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY COVER.......PC MC MC MC MC MC MC MC MC MC MC MC
SKY (%).........47 61 73 78 82 76 71 65 63 61 59 56
WEATHER COV..... CHC CHC CHC CHC CHC CHC SCH SCH SCH SCH SCH
WEATHER TYPE.... RW RW RW RW RW RW RW RW RW RW RW
TSTM COV........ SCH SCH SCH SCH SCH SCH
CHC OF PCPN (%).0 30 30 30 30 30 30 20 20 20 20 20
CHC OF THDR (%).M M M M M M M M M M M M
TEMP............54 58 59 60 60 60 60 60 60 60 59 56
DEWPOINT........54 54 54 53 52 49 45 42 40 38 36 34
RH..............100 87 83 78 75 67 58 51 47 44 42 43
20 FT WIND DIR..S S S SSW SW WSW WNW NW NW NNW NNW NNW
20 FT WIND SPD..16 15 17 18 20 21 22 23 24 25 25 25
20 FT WIND GUST.23 22 23 24 26 28 29 30 31 32 33 33
MIX HGT (KFT)...1.1 0.9 1.3 1.8 2.1 2.0 2.0 2.0 2.3 2.5 2.8 3.0
TRANSP WIND DIR.S S S SW WNW NNW NNW NNW NNW NNW NNW NNW
TRANSP WIND SPD.20 15 17 18 20 22 25 28 29 29 29 29
SMOKE DISPERSAL.FR PR FR FR GD GD GD GD GD EX EX EX
FORECASTER...SG
REQUESTED BY...MARK WILSON
TYPE OF REQUEST...PRESCRIBED
.TAG 2610452.0/FSD
.DELDT 04/16/26
.FORMATTERVERSION 2.0.0
.EMAIL MWILSON@OBRIENCOUNTY.IOWA.GOV
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