460
FNUS73 KFSD 170000
FWSFSD
SPOT FORECAST FOR LAKE ANDES FIRE...LAKE ANDES FIRE DEPARTMENT
NATIONAL WEATHER SERVICE SIOUX FALLS SD
700 PM CDT THU APR 16 2026
IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE NATIONAL WEATHER
SERVICE.
..RED FLAG WARNING IN EFFECT UNTIL 8 PM CDT THIS EVENING
DISCUSSION
CURRENTLY, WINDS ARE OUT OF THE SOUTH GUSTING TO 30-35 MPH WITH
RELATIVE HUMIDITY VALUES AROUND 10-15%. RELATIVE HUMIDITY VALUES
WILL SLOWLY IMPROVE OVER THE NEXT FEW HOURS, RISING ABOVE 25% BY
9 TO 10 PM. WINDS WILL BEGIN TO TURN MORE SOUTHEASTERLY OVER THE
NEXT COUPLE OF HOURS. WINDS WILL ALSO WEAKEN SLIGHTLY THIS EVENING
BEFORE PICKING BACK UP AGAIN TOWARDS MIDNIGHT AS A COLD FRONT
APPROACHES THE AREA. THIS COLD FRONT WILL MOVE THROUGH THE AREA
AROUND 1-3 AM AND TURN WINDS TO THE NORTHWEST HEADING INTO THE DAY
ON FRIDAY. WINDS WILL ALSO STRENGTHEN BEHIND THE FRONTAL PASSAGE,
GUSTING UP TO 40-45 MPH AT TIMES THROUGH FRIDAY MORNING. RELATIVE
HUMIDITY VALUES WILL RECOVER TONIGHT AND REMAIN ABOVE CRITICAL
LEVELS THROUGH THE DAY ON FRIDAY. FRIDAY WILL BE MUCH COOLER WITH
TEMPERATURES STAYING IN THE 40S THROUGHOUT THE DAY.
REST OF TONIGHT
MIN TEMPERATURE.....AROUND 41.
MAX HUMIDITY........65 PERCENT.
TIME (CDT) 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY COVER.......MCR MCR MCR PC PC PC PC PC MC MC MC
SKY (%).........10 11 22 32 33 36 26 45 60 66 80
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CHC OF PCPN (%).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
TEMP............83 78 75 72 69 67 66 62 58 53 49
DEWPOINT........29 31 32 34 34 36 37 37 37 36 35
RH..............14 18 21 24 27 32 34 39 45 52 58
20 FT WIND DIR..S S SSE SSE SSE S S S WNW NNW NNW
20 FT WIND SPD..17 14 16 17 20 20 20 20 18 18 22
20 FT WIND GUST.26 25 26 28 28 28 28 28 26 28 36
MIX HGT (KFT)...3.3 0.7 0.6 0.6 0.6 0.7 0.7 0.7 0.8 1.3 2.0
TRANSP WIND DIR.S S S S S S S S NW NNW NNW
TRANSP WIND SPD.26 20 20 23 24 24 24 20 20 26 31
SMOKE DISPERSAL.EX PR PR PR PR FR FR PR FR GD GD
FRIDAY
MAX TEMPERATURE.....AROUND 47.
MIN HUMIDITY........38 PERCENT.
TIME (CDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY COVER.......MC MC CDY MC MC MC MC MC MC MC CDY MC
SKY (%).........79 83 92 86 82 82 75 58 75 85 89 82
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CHC OF PCPN (%).0 0 10 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............47 44 42 42 41 42 43 44 45 46 47 47
DEWPOINT........34 32 31 31 30 30 28 26 24 24 23 23
RH..............60 62 65 65 65 62 55 49 43 42 38 38
20 FT WIND DIR..NNW NNW NNW NNW NNW NNW NNW NNW NNW NNW NNW NW
20 FT WIND SPD..24 26 28 28 29 30 30 28 29 28 28 28
20 FT WIND GUST.39 40 43 43 43 43 40 39 40 38 38 38
MIX HGT (KFT)...2.3 2.4 2.5 2.7 2.8 3.0 3.2 3.7 4.0 4.4 4.8 5.1
TRANSP WIND DIR.N N NNW N NNW NNW NNW NNW NNW NNW NW NW
TRANSP WIND SPD.33 35 36 33 32 33 33 33 35 33 33 32
SMOKE DISPERSAL.EX EX EX EX EX EX EX EX EX EX EX EX
FORECASTER...SAMET
REQUESTED BY...MIKE DANGEL
TYPE OF REQUEST...WILDFIRE
.TAG 2610580.0/FSD
.DELDT 04/16/26
.FORMATTERVERSION 2.0.0
.EMAIL DANGEL@CME.COOP
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