281
FNUS73 KUNR 162340
FWSUNR
SPOT FORECAST FOR SAWMILL...USFS
NATIONAL WEATHER SERVICE RAPID CITY SD
540 PM MDT THU APR 16 2026
FORECAST IS BASED ON FORECAST START TIME OF 1800 MDT ON APRIL 16.
IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE NATIONAL WEATHER
SERVICE.
..RED FLAG WARNING IN EFFECT UNTIL 7 PM MDT THIS EVENING
DISCUSSION
A COLD FRONT WILL CONTINUE TO PUSH THROUGH THE FIRE
AREA THIS EVENING. WINDS FOR THE FIRE AREA ARE CURRENTLY
NORTHEAST AT 18 MPH, GUSTING TO 42 MPH AND WILL SLOWLY SHIFT TO
NORTHERLY AROUND 2 AM, BEFORE BECOMING NORTHEASTERLY AROUND 9 AM.
RAIN SHOWERS ARE EXPECTED THIS EVENING WITH RAIN CHANGING TO SNOW
OVERNIGHT. LIQUID EQUIVALENT RAINFALL AMOUNTS THROUGH FRIDAY
MORNING WILL BE AROUND 0.10" WITH WETTING RAIN CHANCES AROUND 60
PERCENT. SNOW AMOUNTS WILL BE LESS THAN ONE-HALF INCH.
TONIGHT
SKY/WEATHER.........CLOUDY (95-100 PERCENT). RAIN SHOWERS EARLY IN
THE EVENING. CHANCE OF SNOW SHOWERS OVERNIGHT.
MIN TEMPERATURE.....AROUND 28.
MAX HUMIDITY........73 PERCENT.
WIND (20 FT)........NORTHWEST WINDS AROUND 10 MPH SHIFTING TO THE
NORTH EARLY IN THE EVENING. GUSTS UP TO 26 MPH.
CWR.................50 PERCENT.
MIXING HEIGHT.......800 TO 1300 FT AGL.
TRANSPORT WINDS.....WEST AROUND 25 MPH SHIFTING TO THE NORTH EARLY
IN THE EVENING.
SMOKE DISPERSAL.....POOR.
TIME (MDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY (%).........100 100 100 100 100 100 100 100 100 100 100 100
WEATHER COV.....DEF DEF CHC CHC CHC CHC CHC CHC CHC CHC CHC CHC
WEATHER TYPE....RW RW RW RW RW RW RS SW SW SW SW SW
TSTM COV........
CWR.............50 50 50 50 50 50 50 50 50 50 50 50
TEMP............57 52 49 45 42 39 37 35 34 32 31 30
RH..............33 44 57 70 70 73 72 72 72 72 69 69
20 FT WIND DIR..NE NE NE NE NE NE NE N N N N N
20 FT WIND SPD..17 18 16 15 14 14 15 15 15 14 14 14
20 FT WIND GUST.40 35 33 28 23 24 26 26 26 26 22 21
MIX HGT (KFT)...3.8 1.4 0.8 1.2 1.1 1.2 1.1 1.2 1.1 1.4 1.4 1.5
TRANSP WIND DIR.SW W NW N N N N N N N N N
TRANSP WIND SPD.25 24 22 22 23 24 25 25 24 24 23 23
FRIDAY
SKY/WEATHER.........MOSTLY CLOUDY (75-85 PERCENT). CHANCE OF SNOW
SHOWERS IN THE MORNING, THEN SLIGHT CHANCE OF
SNOW SHOWERS IN THE AFTERNOON.
MAX TEMPERATURE.....AROUND 38.
MIN HUMIDITY........30 PERCENT.
WIND (20 FT)........NORTHWEST WINDS 15 TO 20 MPH. GUSTS UP TO 31
MPH INCREASING TO 32 MPH LATE IN THE AFTERNOON.
CWR.................20 PERCENT.
MIXING HEIGHT.......6200 TO 6700 FT AGL.
TRANSPORT WINDS.....NORTHWEST 25 TO 35 MPH INCREASING TO 35 TO 40
MPH IN THE AFTERNOON.
SMOKE DISPERSAL.....VERY GOOD INCREASING TO EXCELLENT IN THE
AFTERNOON.
TIME (MDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........94 96 95 92 89 89 84 72 62 59 59 59
WEATHER COV.....CHC CHC CHC CHC CHC CHC SCH SCH SCH SCH SCH SCH
WEATHER TYPE....SW SW SW SW SW SW SW SW SW SW SW SW
TSTM COV........
CWR.............20 20 20 20 20 20 20 20 20 20 20 20
TEMP............29 29 28 30 32 32 33 34 35 36 36 37
RH..............66 63 68 60 56 53 49 47 43 40 36 32
20 FT WIND DIR..N NW NW NW NW NW NW NW NW NW NW NW
20 FT WIND SPD..14 14 14 15 15 16 17 18 18 20 20 20
20 FT WIND GUST.22 23 23 24 25 28 29 30 30 31 32 32
MIX HGT (KFT)...1.7 1.9 2.8 3.9 4.5 4.6 5.2 5.7 6.2 6.7 6.4 6.2
TRANSP WIND DIR.N N NW NW NW NW NW NW NW NW NW NW
TRANSP WIND SPD.23 24 26 28 30 32 35 36 38 39 40 40
FRIDAY NIGHT
SKY/WEATHER.........MOSTLY CLEAR (15-25 PERCENT).
MIN TEMPERATURE.....AROUND 21.
MAX HUMIDITY........68 PERCENT.
WIND (20 FT)........NORTHWEST WINDS 10 TO 20 MPH. GUSTS UP TO 32
MPH DECREASING TO 22 MPH IN THE LATE EVENING
AND OVERNIGHT.
CWR.................0 PERCENT.
MIXING HEIGHT.......600 TO 1100 FT AGL.
TRANSPORT WINDS.....NORTHWEST 35 TO 40 MPH DECREASING TO AROUND 20
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 (%).........29 29 29 29 24 19 14 16 19 21 21 22
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CWR.............0 0 0 0 0 0 0 0 0 0 0 0
TEMP............36 34 32 28 26 25 25 24 24 23 22 22
RH..............30 35 37 42 46 48 48 52 52 57 62 65
20 FT WIND DIR..NW NW NW NW NW NW NW NW NW NW NW NW
20 FT WIND SPD..18 17 16 14 13 10 10 10 10 10 10 12
20 FT WIND GUST.32 29 25 22 21 20 18 17 17 17 16 16
MIX HGT (KFT)...5.9 4.2 2.5 0.8 0.7 0.7 0.6 0.6 0.6 0.7 0.7 0.7
TRANSP WIND DIR.NW NW NW NW NW NW NW NW NW NW NW NW
TRANSP WIND SPD.39 35 28 22 20 18 17 16 16 16 17 18
SATURDAY
SKY/WEATHER.........MOSTLY SUNNY (25-35 PERCENT). SLIGHT CHANCE OF
SNOW SHOWERS.
MAX TEMPERATURE.....AROUND 47.
MIN HUMIDITY........25 PERCENT.
WIND (20 FT)........NORTHWEST WINDS 15 TO 20 MPH. GUSTS UP TO 24
MPH INCREASING TO 36 MPH IN THE LATE MORNING
AND AFTERNOON.
CWR.................0 PERCENT.
MIXING HEIGHT.......8600 TO 9100 FT AGL.
TRANSPORT WINDS.....NORTHWEST 25 TO 30 MPH INCREASING TO 35 TO 40
MPH IN THE LATE MORNING AND AFTERNOON.
SMOKE DISPERSAL.....GOOD INCREASING TO EXCELLENT.
TIME (MDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........22 23 23 24 29 34 39 36 33 30 26 21
WEATHER COV.....SCH SCH SCH SCH SCH SCH SCH SCH SCH SCH SCH SCH
WEATHER TYPE....SW SW SW SW SW SW SW SW SW SW SW SW
TSTM COV........
CWR.............0 0 0 0 0 0 0 0 0 0 0 0
TEMP............22 24 27 31 34 37 40 42 44 45 46 47
RH..............68 65 60 53 47 42 37 34 30 29 27 25
20 FT WIND DIR..NW NW NW NW NW NW NW NW NW NW NW NW
20 FT WIND SPD..12 12 13 15 16 17 18 20 20 20 20 20
20 FT WIND GUST.17 21 24 28 30 32 33 35 36 36 36 35
MIX HGT (KFT)...0.7 1.9 3.1 4.3 5.5 6.7 7.9 8.3 8.7 9.1 8.5 7.9
TRANSP WIND DIR.NW NW NW NW NW NW NW NW NW NW NW NW
TRANSP WIND SPD.22 25 30 35 36 37 38 38 39 39 40 40
FORECASTER...CS
REQUESTED BY...SAMANTHA
TYPE OF REQUEST...WILDFIRE
.TAG 2610574.0/UNR
.DELDT 04/16/26
.FORMATTERVERSION 2.0.0
.EMAIL SDGPC@FIRENET.GOV
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