965
FNUS73 KUNR 171054
FWSUNR
SPOT FORECAST FOR SAWMILL...USFS
NATIONAL WEATHER SERVICE RAPID CITY SD
454 AM MDT FRI APR 17 2026
FORECAST IS BASED ON FORECAST START TIME OF 0600 MDT ON APRIL 17.
IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE NATIONAL WEATHER
SERVICE.
DISCUSSION
SNOW SHOWERS WILL MOVE OUT OF THE AREA EARLY THIS
MORNING, LITTLE TO NO ADDITIONAL ACCUMULATIONS ARE EXPECTED.
GUSTY NORTHWEST WINDS WILL CONTINUE THROUGH TODAY WITH SUSTAINED
WINDS OF 15 TO 25 MPH AND GUSTS OF UP TO 32 MPH. HIGHS WILL BE IN
THE UPPER 30S WITH AFTERNOON HUMIDITIES RANGING FROM 29 TO 40%.
MOSTLY CLEAR TONIGHT WITH TEMPERATURES DROPPING TO THE LOW 20S.
GOOD HUMIDITY RECOVERY OVERNIGHT (~77%) WITH BREEZY NORTHWEST
WINDS CONTINUING THROUGH TONIGHT. WINDS WILL DIMINISH SLIGHTLY
OVERNIGHT BEFORE PICKING UP AGAIN ON SATURDAY. GUSTY NORTHWEST
WINDS (10 TO 20 MPH, GUSTING UP TO 33) AND HUMIDITIES RANGING FROM
25 TO 30% WILL CREATE ELEVATED FIRE WEATHER CONCERNS FOR SATURDAY
AFTERNOON.
TODAY
SKY/WEATHER.........MOSTLY CLOUDY (75-85 PERCENT) THEN BECOMING
MOSTLY SUNNY (40-50 PERCENT). SLIGHT CHANCE OF
SNOW EARLY IN THE MORNING.
MAX TEMPERATURE.....AROUND 37.
MIN HUMIDITY........29 PERCENT.
WIND (20 FT)........NORTHWEST WINDS 15 TO 25 MPH. GUSTS UP TO 32
MPH.
CWR.................0 PERCENT.
MIXING HEIGHT.......6800 TO 7300 FT AGL.
TRANSPORT WINDS.....NORTHWEST 20 TO 30 MPH INCREASING TO 35 TO 40
MPH IN THE LATE MORNING AND AFTERNOON.
SMOKE DISPERSAL.....VERY GOOD INCREASING TO EXCELLENT.
TIME (MDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........94 96 97 92 86 85 80 74 67 63 48 45
WEATHER COV.....SCH SCH SCH
WEATHER TYPE....SN SN SN
TSTM COV........
CWR.............0 0 0 0 0 0 0 0 0 0 0 0
TEMP............27 27 28 31 32 33 34 36 37 37 37 37
RH..............65 64 63 58 53 49 45 40 37 35 32 29
20 FT WIND DIR..N N NW NW NW NW NW NW NW NW NW NW
20 FT WIND SPD..13 14 15 16 17 18 18 18 20 20 21 20
20 FT WIND GUST.22 23 25 24 26 28 30 30 31 32 32 32
MIX HGT (KFT)...2.3 2.4 3.1 3.8 4.4 5.1 5.5 6.1 6.2 7.3 7.2 6.9
TRANSP WIND DIR.N N NW NW NW NW NW NW NW NW NW NW
TRANSP WIND SPD.20 22 25 29 31 33 36 37 38 39 40 40
TONIGHT
SKY/WEATHER.........MOSTLY CLEAR (20-30 PERCENT).
MIN TEMPERATURE.....AROUND 22.
MAX HUMIDITY........77 PERCENT.
WIND (20 FT)........NORTHWEST WINDS 15 TO 20 MPH WITH GUSTS UP TO 31
MPH THIS EVENING. WINDS WILL DECREASE TO AROUND
10 MPH WITH GUSTS TO 18 MPH AFTER 8 TO 9 PM.
CWR.................0 PERCENT.
MIXING HEIGHT.......500 TO 1000 FT AGL.
TRANSPORT WINDS.....NORTHWEST 35 TO 40 MPH DECREASING TO 15 TO 25
MPH.
SMOKE DISPERSAL.....VERY GOOD DECREASING TO POOR EARLY IN THE
EVENING.
TIME (MDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY (%).........30 27 17 17 23 27 27 30 33 30 30 24
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CWR.............0 0 0 0 0 0 0 0 0 0 0 0
TEMP............36 34 31 28 27 26 26 25 24 23 22 22
RH..............30 33 39 44 46 50 52 57 65 68 74 77
20 FT WIND DIR..NW NW NW NW NW NW NW NW NW NW NW NW
20 FT WIND SPD..18 16 14 12 10 9 9 9 9 9 9 9
20 FT WIND GUST.31 28 25 21 20 18 17 17 17 18 18 18
MIX HGT (KFT)...5.8 4.6 0.8 0.6 0.6 0.5 0.5 0.6 0.7 0.7 0.7 0.7
TRANSP WIND DIR.NW NW NW NW NW NW NW NW NW NW NW NW
TRANSP WIND SPD.38 32 25 20 16 15 16 17 20 22 23 24
SATURDAY
SKY/WEATHER.........MOSTLY SUNNY (25-35 PERCENT).
MAX TEMPERATURE.....AROUND 46.
MIN HUMIDITY........25 PERCENT.
WIND (20 FT)........NORTHWEST WINDS 10 TO 20 MPH WITH GUSTS TO
AROUND 33 MPH.
CWR.................0 PERCENT.
MIXING HEIGHT.......7600 TO 8100 FT AGL.
TRANSPORT WINDS.....NORTHWEST 30 TO 35 MPH INCREASING TO AROUND 40
MPH EARLY IN THE MORNING.
SMOKE DISPERSAL.....GOOD INCREASING TO EXCELLENT.
TIME (MDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........30 30 31 32 36 40 45 42 39 36 27 19
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CWR.............0 0 0 0 0 0 0 0 0 0 0 0
TEMP............23 25 29 33 35 38 40 43 45 46 46 46
RH..............74 71 63 53 45 38 34 29 27 27 26 25
20 FT WIND DIR..NW NW NW NW NW NW NW NW NW NW NW NW
20 FT WIND SPD..9 10 13 15 16 17 18 20 20 20 20 18
20 FT WIND GUST.20 21 23 25 28 30 31 32 33 33 33 32
MIX HGT (KFT)...0.7 1.9 3.0 4.2 5.3 6.5 7.6 7.8 8.0 8.1 7.6 7.0
TRANSP WIND DIR.NW NW NW NW NW NW NW NW NW NW NW NW
TRANSP WIND SPD.26 31 36 39 40 40 40 40 40 39 40 39
FORECASTER...EW
REQUESTED BY...SAMANTHA MALIN
TYPE OF REQUEST...WILDFIRE
.TAG 2610582.0/UNR
.DELDT 04/17/26
.FORMATTERVERSION 2.0.0
.EMAIL SDGPC@FIRENET.GOV,TODD.HOOVER@USDA.GOV,JASON.RODRIGUEZ2@USDA.GOV
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