476
FNUS73 KFSD 021220
FWSFSD
SPOT FORECAST FOR 7 MILE WEST SLASH PILE BURN...BUREAU OF INDIAN AFFAIRS - YANKTON AGENCY
NATIONAL WEATHER SERVICE SIOUX FALLS SD
620 AM CST TUE DEC 2 2025
IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE NATIONAL WEATHER
SERVICE.
DISCUSSION
PATCHY FOG THROUGH MID MORNING MAY REDUCE VISIBILITY BELOW ONE
MILE AT TIMES. MIXING WILL BE LIMITED TODAY, WITH MIXING HEIGHTS
MOSTLY BELOW 1KFT. HIGH CLOUDS MOVE IN THIS MORNING, WITH LOWER
CLOUDS RETURNING AS EARLY AS THIS AFTERNOON. LIGHT SOUTHERLY
WINDS THIS MORNING SHIFT TO WESTERLY THIS AFTERNOON. TEMPERATURES
THIS AFTERNOON WARM INTO THE MID/UPPER 30S, WITH MINIMUM HUMIDITY
VALUES AROUND 70%. BOUNDARY MOVING THROUGH TONIGHT COULD BRING
SOME LIGHT PRECIPITATION. WINDS SHIFT TO NORTHWESTERLY AND
INCREASE TONIGHT.
REST OF TODAY
MAX TEMPERATURE.....AROUND 38.
MIN HUMIDITY........72 PERCENT.
TIME (CST) 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY COVER.......MC MC MC MC MC MC MC MC MC MC
SKY (%).........65 61 75 84 79 66 70 70 68 76
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CHC OF PCPN (%).0 0 0 0 10 10 10 10 10 10
CHC OF THDR (%).0 0 0 0 0 0 0 0 0 0
TEMP............17 19 24 28 33 36 38 38 37 35
DEWPOINT........14 16 19 22 25 28 30 31 31 31
RH..............89 88 81 78 72 72 73 76 79 85
20 FT WIND DIR..S S SW WSW WSW W W W W W
20 FT WIND SPD..6 6 6 6 6 6 6 7 7 6
20 FT WIND GUST. 8 10 10 12 12 12 12 12 12
MIX HGT (KFT)...0.4 0.4 0.4 0.5 0.6 0.8 0.9 1.1 0.9 0.7
TRANSP WIND DIR.SSW SW SW WSW W WNW WNW WNW WNW WNW
TRANSP WIND SPD.9 8 9 9 9 12 10 12 12 10
SMOKE DISPERSAL.PR PR PR PR PR PR PR PR PR PR
TONIGHT
MIN TEMPERATURE.....AROUND 18.
MAX HUMIDITY........100 PERCENT.
TIME (CST) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY COVER.......MC CDY CDY CDY CDY CDY CDY CDY CDY MC MC MC
SKY (%).........85 89 90 92 92 89 90 88 89 83 84 85
WEATHER COV..... SCH SCH SCH SCH SCH SCH SCH SCH SCH
WEATHER TYPE.... RN RN RN RN SN SN SN SN SN
TSTM COV........
CHC OF PCPN (%).10 10 10 20 20 20 20 20 20 20 20 20
CHC OF THDR (%).0 0 0 0 0 0 0 0 0 0 0 0
TEMP............33 33 33 34 33 33 33 33 31 29 28 26
DEWPOINT........30 31 31 32 32 32 32 31 30 29 26 24
RH..............89 92 92 92 96 96 96 92 96 100 92 92
20 FT WIND DIR..W W WNW WNW WNW NW NW NW NW NNW NNW NNW
20 FT WIND SPD..6 6 7 7 8 9 9 10 10 12 14 14
20 FT WIND GUST.12 12 13 14 15 15 16 17 18 20 22 23
MIX HGT (KFT)...0.5 0.5 0.5 0.5 0.5 0.6 0.6 0.7 0.7 0.8 0.9 1.2
TRANSP WIND DIR.WNW W W WNW NW NW NW NNW NNW N N N
TRANSP WIND SPD.12 13 12 13 15 15 15 16 15 16 16 16
SMOKE DISPERSAL.PR PR PR PR PR PR PR PR PR PR FR FR
WEDNESDAY
MAX TEMPERATURE.....AROUND 20.
MIN HUMIDITY........73 PERCENT.
TIME (CST) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY COVER.......CDY MC MC MC MC MC MC MC MC PC PC PC
SKY (%).........88 84 71 63 57 59 61 56 51 46 46 46
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............23 20 18 17 17 18 18 17 16 16 14 12
DEWPOINT........21 18 16 15 13 12 12 11 10 9 8 7
RH..............92 92 92 92 84 77 77 77 77 73 76 80
20 FT WIND DIR..N N N N N N N N N N N N
20 FT WIND SPD..14 15 15 14 14 15 15 15 14 13 10 8
20 FT WIND GUST.23 24 24 23 23 22 22 22 21 20 17 14
MIX HGT (KFT)...1.4 1.5 1.6 1.8 2.0 2.3 2.5 2.6 2.6 2.6 2.0 1.5
TRANSP WIND DIR.N N N N N N N N N N N N
TRANSP WIND SPD.17 17 20 21 21 21 20 21 21 20 17 14
SMOKE DISPERSAL.FR FR FR GD GD GD GD GD GD GD GD FR
FORECASTER...SG
REQUESTED BY...PHILOMENA COURNOYER
TYPE OF REQUEST...PRESCRIBED
.TAG 2526783.0/FSD
.DELDT 12/02/25
.FORMATTERVERSION 2.0.0
.EMAIL PHILOMENA.COURNOYER@BIA.GOV
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page