628
FNUS73 KFSD 160134
FWSFSD
SPOT FORECAST FOR BLUFF...VERMILLION
NATIONAL WEATHER SERVICE SIOUX FALLS SD
834 PM CDT FRI MAY 15 2026
IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE NATIONAL WEATHER
SERVICE.
DISCUSSION
NORTHWEST WINDS SUSTAINED AT 15-20 MPH AND GUSTS OF 25-30 MPH WILL
GRADUALLY DECREASE OVER THE NEXT FEW HOURS. WINDS WILL BECOME
LIGHT AND VARIABLE OVERNIGHT. CURRENT TEMPERATURE IS IN THE MID
80S AND WILL ALSO DECREASE OVER THE NEXT FEW HOURS, WITH A LOW
NEAR SUNRISE IN THE MID 50S. RELATIVE HUMIDITY IS CURRENTLY AROUND
17% AND EXPECTED TO GRADUALLY INCREASE AS WINDS COME DOWN, RISING
ABOVE 30% AROUND MIDNIGHT. MIXING HEIGHT WILL DECREASE FROM AROUND
500 FT AGL TO 400 FT AGL. SMOKE DISPERSAL THIS EVENING WILL BE
POOR.
SATURDAY MORNING WINDS WILL BECOME EAST-NORTHEAST AND INCREASE. BY
EARLY AFTERNOON GUSTS OF 20-25 MPH ARE EXPECTED. THESE WINDS ARE
EXPECTED TO CONTINUE THROUGH THE EVENING AND INTO THE OVERNIGHT.
MINIMUM RELATIVE HUMIDITY FOR SATURDAY WILL BE IN THE UPPER 30%
RANGE WITH HIGHS NEAR 90 DEGREES F. MIXING HEIGHT WILL INCREASE TO
AROUND 6000 FT AGL SATURDAY AFTERNOON.
REST OF TONIGHT
MIN TEMPERATURE.....AROUND 54.
MAX HUMIDITY........51 PERCENT.
TIME (CDT) 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY COVER.......PC PC PC PC PC MCR MCR PC PC
SKY (%).........39 33 27 32 32 24 20 30 45
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CHC OF PCPN (%).0 0 0 0 0 0 0 0 0
TEMP............81 75 69 66 63 61 59 58 56
DEWPOINT........37 35 35 34 34 34 38 38 38
RH..............21 23 28 30 34 36 45 47 51
20 FT WIND DIR..N N N NNE NE NE NNE NNE NNE
20 FT WIND SPD..21 20 16 8 6 5 5 3 3
20 FT WIND GUST.30 26 22 13 10 8 7 6 6
SMOKE DISPERSAL.PR PR PR PR PR PR PR PR PR
SATURDAY
MAX TEMPERATURE.....AROUND 86.
MIN HUMIDITY........18 PERCENT.
TIME (CDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY COVER.......MC MC MC MC PC PC PC PC PC MC MC MC
SKY (%).........51 65 65 54 45 35 50 44 41 64 58 78
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
TEMP............55 55 59 65 72 76 79 81 84 84 84 85
DEWPOINT........37 37 38 38 38 37 36 35 36 36 37 38
RH..............51 50 45 37 29 24 21 19 18 18 19 19
20 FT WIND DIR..N N NNE NE ENE ENE E E E E E E
20 FT WIND SPD..5 5 6 6 7 10 12 13 14 14 15 16
20 FT WIND GUST.7 8 9 9 13 16 18 21 22 22 23 23
SMOKE DISPERSAL.PR PR PR PR FR GD EX EX EX EX EX EX
FORECASTER...AP
REQUESTED BY...TONY KLUNDER
TYPE OF REQUEST...WILDFIRE
.TAG 2613786.0/FSD
.DELDT 05/15/26
.FORMATTERVERSION 2.0.0
.EMAIL TONYK@CITYOFVERMILLION.COM
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