388
FNUS73 KUNR 171648
FWSUNR
SPOT FORECAST FOR CAREX MACHINE...USFS
NATIONAL WEATHER SERVICE RAPID CITY SD
948 AM MST WED DEC 17 2025
FORECAST IS BASED ON IGNITION TIME OF 1000 MST ON DECEMBER 17.
IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE NATIONAL WEATHER
SERVICE.
...HIGH WIND WARNING IN EFFECT FROM 2 PM THIS AFTERNOON TO 8 AM
MST THURSDAY...
DISCUSSION
WINDS WILL CONTINUE TO INCREASE TODAY, WITH GUSTS
TO 40 MPH BY EARLY THIS AFTERNOON. WINDS WILL CONTINUE TO
STRENGTHEN THROUGH THE AFTERNOON, GUSTING TO 45 MPH. A VERY
STRONG COLD FRONT WILL SHIFT THE WINDS TO THE NORTHWEST IN THE MID
TO LATE AFTERNOON WITH EVEN HIGHER GUSTS POSSIBLE TONIGHT INTO
EARLY THURSDAY MORNING. RAIN SHOWERS WILL DEVELOP THIS AFTERNOON
AHEAD OF THE FRONT, THEN CHANGE TO SNOW BEHIND THE FRONT AS COLDER
AIR PUSHES IN. SNOW IS EXPECTED TO CONTINUE THROUGH TONIGHT, WITH
UP TO TWO INCHES OF ACCUMULATION. ELEVATED FIRE WEATHER
CONDITIONS ARE EXPECTED TODAY THROUGH MID DAY THURSDAY.
REST OF TODAY
SKY/WEATHER.........MOSTLY CLOUDY (75-85 PERCENT). CHANCE OF RAIN
LATE IN THE MORNING, THEN RAIN LIKELY AND
CHANCE OF SNOW IN THE AFTERNOON.
MAX TEMPERATURE.....AROUND 55.
MIN HUMIDITY........43 PERCENT.
WIND (20 FT)........SOUTHWEST WINDS 20 TO 30 MPH SHIFTING TO THE
WEST LATE IN THE AFTERNOON. GUSTS UP TO 40 MPH.
CWR.................30 PERCENT.
MIXING HEIGHT.......3400 TO 3900 FT AGL.
TRANSPORT WINDS.....SOUTHWEST 45 TO 55 MPH SHIFTING TO THE
NORTHWEST 55 TO 60 MPH LATE IN THE AFTERNOON.
SMOKE DISPERSAL.....GOOD INCREASING TO EXCELLENT LATE IN THE
AFTERNOON.
TIME (MST) 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........75 72 76 73 86 86 85 75
WEATHER COV.....CHC CHC CHC CHC LKY LKY CHC CHC
WEATHER TYPE....RN RN RN RN RN RN RS SN
TSTM COV........
CWR.............30 30 30 30 30 30 30 30
TEMP............45 50 51 51 49 45 40 36
RH..............52 46 47 48 52 59 70 67
20 FT WIND DIR..SW SW SW SW W W W NW
20 FT WIND SPD..16 21 21 21 21 21 21 23
20 FT WIND GUST.37 36 37 37 36 38 39 37
MIX HGT (KFT)...0.5 0.8 1.2 1.6 3.9 2.0 2.2 2.2
TRANSP WIND DIR.SW SW SW W W W W NW
TRANSP WIND SPD.45 48 49 51 51 53 55 59
TONIGHT
SKY/WEATHER.........MOSTLY CLOUDY (55-65 PERCENT). CHANCE OF SNOW
THROUGH THE NIGHT. AREAS OF BLOWING SNOW.
MIN TEMPERATURE.....AROUND 16.
MAX HUMIDITY........73 PERCENT.
WIND (20 FT)........WINDY. WEST WINDS 25 TO 35 MPH WITH GUSTS TO
AROUND 45 MPH INCREASING TO 30 TO 40 MPH WITH
GUSTS TO AROUND 60 MPH IN THE LATE EVENING AND
OVERNIGHT.
CWR.................20 PERCENT.
MIXING HEIGHT.......2400 TO 2900 FT AGL.
TRANSPORT WINDS.....NORTHWEST 65 TO 70 MPH INCREASING TO 75 TO 85
MPH EARLY IN THE EVENING, THEN DECREASING TO
AROUND 75 MPH EARLY IN THE MORNING.
SMOKE DISPERSAL.....VERY GOOD.
TIME (MST) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY (%).........66 66 66 66 66 54 56 59 60 62 66 66
WEATHER COV.....CHC CHC CHC ARS ARS CHC CHC PTY
WEATHER TYPE....SN SN SN BSN BSN SN SN BSN
TSTM COV........
CWR.............20 20 20 20 20 20 20 20 20 20 20 20
TEMP............33 31 30 30 29 29 26 23 20 18 17 16
RH..............61 51 46 44 44 44 50 59 71 70 73 73
20 FT WIND DIR..NW W W W W W W W W NW NW NW
20 FT WIND SPD..24 26 29 31 35 32 32 33 30 29 30 29
20 FT WIND GUST.43 41 44 46 49 52 53 52 52 52 51 48
MIX HGT (KFT)...2.9 2.4 3.0 3.0 3.0 2.7 3.3 2.8 2.4 2.4 2.5 2.5
TRANSP WIND DIR.NW W W W W W W W NW NW NW NW
TRANSP WIND SPD.64 70 76 79 82 83 82 79 77 76 74 71
THURSDAY
SKY/WEATHER.........PARTLY SUNNY (50-60 PERCENT). PATCHY BLOWING
SNOW EARLY IN THE MORNING.
MAX TEMPERATURE.....AROUND 33.
MIN HUMIDITY........49 PERCENT.
WIND (20 FT)........BREEZY. NORTHWEST WINDS 25 TO 35 MPH WITH GUSTS
TO AROUND 45 MPH BECOMING WEST 15 TO 20 MPH
WITH GUSTS TO AROUND 25 MPH IN THE LATE MORNING
AND EARLY AFTERNOON, THEN SHIFTING TO THE
SOUTHWEST WITH GUSTS TO AROUND 20 MPH LATE IN
THE AFTERNOON.
CWR.................0 PERCENT.
MIXING HEIGHT.......2800 TO 3300 FT AGL.
TRANSPORT WINDS.....NORTHWEST 60 TO 70 MPH DECREASING TO 45 TO 55
MPH EARLY IN THE MORNING, THEN DECREASING TO 30
TO 40 MPH LATE IN THE MORNING BECOMING WEST 20
TO 30 MPH LATE IN THE AFTERNOON SHIFTING TO THE
SOUTHWEST AROUND 20 MPH.
SMOKE DISPERSAL.....VERY GOOD DECREASING TO POOR LATE IN THE
AFTERNOON.
TIME (MST) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........67 61 64 41 40 38 43 47 52 58 64 70
WEATHER COV.....PTY
WEATHER TYPE....BSN
TSTM COV........
CWR.............0 0 0 0 0 0 0 0 0 0 0 0
TEMP............16 17 18 21 23 27 28 29 29 28 27 25
RH..............70 70 67 59 57 53 51 49 49 50 52 54
20 FT WIND DIR..NW NW NW NW W W W W W SW SW SW
20 FT WIND SPD..26 23 21 17 14 12 10 9 8 7 7 7
20 FT WIND GUST.47 45 29 25 21 18 17 18 20 18 17 16
MIX HGT (KFT)...2.1 1.7 1.4 1.5 1.7 1.9 2.4 2.8 3.3 2.3 1.2 0.1
TRANSP WIND DIR.NW NW NW NW NW NW NW W W W SW SW
TRANSP WIND SPD.66 59 51 45 38 33 29 26 24 21 18 17
FORECASTER...SR
REQUESTED BY...BRANDON FISCHER
TYPE OF REQUEST...PRESCRIBED
.TAG 2526840.4/UNR
.DELDT 12/17/25
.FORMATTERVERSION 2.0.0
.EMAIL BRANDON.FISCHER@USDA.GOV
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