005
FNUS73 KUNR 151335
FWSUNR
SPOT FORECAST FOR EAST GATE RX...SD WFS
NATIONAL WEATHER SERVICE RAPID CITY SD
635 AM MST MON DEC 15 2025
FORECAST IS BASED ON IGNITION TIME OF 0600 MST ON DECEMBER 16.
IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE NATIONAL WEATHER
SERVICE.
DISCUSSION
MILD AND DRY TUESDAY WITH HIGHS IN THE MID TO UPPER 50S.
WINDS WILL BE OUT OF THE NORTHWEST AT 10 TO 15 MPH, GUSTING TO 25 MPH.
AFTERNOON RHS WILL RANGE FROM 37 TO 43%. WINDS WILL SHIFT TO THE
WEST AFTER 5 PM THIS EVENING WITH RHS RECOVERING TO 65% BY 9 PM
AND THEN DECREASING TO 53% BY 5 AM. A COLD FRONT WILL MOVE THROUGH
THE AREA ON WEDNESDAY MORNING, BRINGING LOW CHANCES FOR LIGHT RAIN.
WINDS ON WEDNESDAY WILL BE OUT OF THE WEST AT 20 TO 25 MPH,
GUSTING UP TO 43 MPH. WINDS WILL SHIFT TO THE NORTHWEST LATE
IN THE AFTERNOON.
TUESDAY
SKY/WEATHER.........PARTLY SUNNY (50-60 PERCENT) THEN BECOMING
SUNNY (20-30 PERCENT).
MAX TEMPERATURE.....AROUND 56.
MIN HUMIDITY........37 PERCENT.
WIND (20 FT)........NORTHWEST WINDS 10 TO 15 MPH WITH GUSTS TO
AROUND 25 MPH.
CWR.................0 PERCENT.
MIXING HEIGHT.......4400 TO 4900 FT AGL.
TRANSPORT WINDS.....NORTHWEST 25 TO 30 MPH DECREASING TO AROUND 20
MPH LATE IN THE AFTERNOON.
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 (%).........64 59 78 56 48 39 38 38 37 33 29 25
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CWR.............0 0 0 0 0 0 0 0 0 0 0 0
TEMP............46 48 50 52 54 55 55 55 54 51 48 44
RH..............43 40 41 39 38 38 37 37 38 43 50 57
20 FT WIND DIR..W W NW NW NW NW NW NW NW NW NW NW
20 FT WIND SPD..14 14 13 12 12 10 10 10 10 9 7 6
20 FT WIND GUST.25 25 24 24 24 24 24 24 23 21 18 16
MIX HGT (KFT)...0.6 0.6 0.6 1.2 1.9 2.5 3.3 4.1 4.9 3.5 2.1 0.7
TRANSP WIND DIR.W W W W NW NW NW NW NW NW NW NW
TRANSP WIND SPD.22 22 22 23 25 26 28 29 28 25 22 18
TUESDAY NIGHT
SKY/WEATHER.........PARTLY CLOUDY (30-40 PERCENT).
MIN TEMPERATURE.....AROUND 35.
MAX HUMIDITY........65 PERCENT.
WIND (20 FT)........WEST WINDS AROUND 10 MPH WITH GUSTS TO AROUND
17 MPH SHIFTING TO THE SOUTHWEST 10 TO 20 MPH
WITH GUSTS TO AROUND 31 MPH LATE IN THE
EVENING.
CWR.................0 PERCENT.
MIXING HEIGHT.......500 TO 1000 FT AGL.
TRANSPORT WINDS.....WEST 15 TO 20 MPH INCREASING TO SOUTHWEST
AROUND 30 MPH.
SMOKE DISPERSAL.....POOR.
TIME (MST) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY (%).........23 20 18 20 23 25 30 36 41 44 46 49
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CWR.............0 0 0 0 0 0 0 0 0 0 0 0
TEMP............40 39 38 37 37 37 37 38 38 39 40 41
RH..............61 63 64 65 64 63 62 61 59 56 54 53
20 FT WIND DIR..W W W W W SW SW W W W W W
20 FT WIND SPD..6 7 8 9 9 10 12 12 13 14 15 16
20 FT WIND GUST.15 16 16 16 17 18 20 22 24 26 29 31
MIX HGT (KFT)...0.7 0.6 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5
TRANSP WIND DIR.W W SW SW SW SW SW SW SW SW SW W
TRANSP WIND SPD.16 15 15 15 17 18 20 21 22 24 26 29
WEDNESDAY
SKY/WEATHER.........PARTLY SUNNY (50-60 PERCENT). CHANCE OF RAIN
LATE IN THE MORNING.
MAX TEMPERATURE.....AROUND 57.
MIN HUMIDITY........35 PERCENT.
WIND (20 FT)........WEST WINDS 20 TO 25 MPH WITH GUSTS TO AROUND 43
MPH SHIFTING TO THE NORTHWEST WITH GUSTS TO
AROUND 40 MPH LATE IN THE AFTERNOON.
CWR.................20 PERCENT.
MIXING HEIGHT.......4200 TO 4700 FT AGL.
TRANSPORT WINDS.....SOUTHWEST 35 TO 40 MPH SHIFTING TO THE
NORTHWEST LATE IN THE AFTERNOON.
SMOKE DISPERSAL.....VERY GOOD INCREASING TO EXCELLENT IN THE
AFTERNOON.
TIME (MST) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........52 56 59 55 51 47 47 47 47 53 60 66
WEATHER COV..... CHC CHC CHC CHC CHC CHC CHC
WEATHER TYPE.... RN RN RN RN RN RN RN
TSTM COV........
CWR.............20 20 20 20 20 20 20 20 20 20 20 20
TEMP............42 43 44 47 50 53 55 56 56 54 51 47
RH..............52 52 51 46 42 38 36 35 35 38 42 45
20 FT WIND DIR..W SW SW SW W W W W W W NW NW
20 FT WIND SPD..17 18 20 21 22 22 22 22 22 21 20 20
20 FT WIND GUST.33 37 39 40 41 43 43 43 43 41 40 40
MIX HGT (KFT)...0.6 0.7 0.7 1.2 1.8 2.3 3.1 3.9 4.7 4.2 3.6 3.1
TRANSP WIND DIR.W SW SW SW W W W W W W NW NW
TRANSP WIND SPD.31 33 36 38 40 41 41 40 39 37 36 36
FORECASTER...EW
REQUESTED BY...JAMES BACHELOR
TYPE OF REQUEST...PRESCRIBED
.TAG 2527639.0/UNR
.DELDT 12/15/25
.FORMATTERVERSION 2.0.0
.EMAIL JAMES.BACHELOR@STATE.SD.US
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