593
FNUS73 KUNR 151100
FWSUNR
SPOT FORECAST FOR 87 FIRE...USFS
NATIONAL WEATHER SERVICE RAPID CITY SD
500 AM MDT WED APR 15 2026
FORECAST IS BASED ON FORECAST START TIME OF 0600 MDT ON APRIL 15.
IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE NATIONAL WEATHER
SERVICE.
DISCUSSION
WARMER AND DRIER WEATHER IS EXPECTED TODAY, WITH
WINDS REMAINING LIGHT. ELEVATED FIRE WEATHER CONDITIONS WILL
LIKELY RETURN ON THURSDAY. THESE CONDITIONS WILL BE SHORT-LIVED,
AS A COLD FRONT WILL MOVE THROUGH THE AREA THURSDAY NIGHT, WITH
RAIN CHANGING TO SNOW BY EARLY FRIDAY MORNING. WETTING
PRECIPITATION IS LIKELY WITH THIS EVENT.
TODAY
SKY/WEATHER.........SUNNY (5-15 PERCENT).
MAX TEMPERATURE.....AROUND 63.
MIN HUMIDITY........16 PERCENT.
WIND (20 FT)........SOUTHWEST WINDS AROUND 5 MPH WITH GUSTS TO
AROUND 14 MPH INCREASING TO 5 TO 10 MPH WITH
GUSTS TO AROUND 22 MPH LATE IN THE MORNING.
CWR.................0 PERCENT.
MIXING HEIGHT.......8500 TO 9000 FT AGL.
TRANSPORT WINDS.....WEST 10 TO 20 MPH INCREASING TO AROUND 25 MPH
LATE IN THE AFTERNOON.
SMOKE DISPERSAL.....GOOD INCREASING TO EXCELLENT IN THE AFTERNOON.
TIME (MDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........10 11 13 11 8 8 7 5 3 6 9 7
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CWR.............0 0 0 0 0 0 0 0 0 0 0 0
TEMP............30 33 38 45 54 57 59 62 63 63 62 61
RH..............69 60 48 37 27 23 20 18 17 17 16 18
20 FT WIND DIR..SW SW SW SW SW SW SW SW SW SW SW SW
20 FT WIND SPD..2 2 2 3 3 5 6 7 7 7 7 6
20 FT WIND GUST.10 10 10 12 14 16 18 20 21 22 22 22
MIX HGT (KFT)...0.4 0.4 0.5 5.4 7.4 8.1 8.6 8.5 8.5 9.0 8.1 8.1
TRANSP WIND DIR.W W W W W SW SW SW W W W W
TRANSP WIND SPD.9 9 10 12 13 14 15 15 16 17 21 23
TONIGHT
SKY/WEATHER.........MOSTLY CLEAR (10-20 PERCENT).
MIN TEMPERATURE.....AROUND 44.
MAX HUMIDITY........43 PERCENT.
WIND (20 FT)........SOUTHWEST WINDS AROUND 10 MPH WITH GUSTS TO
AROUND 28 MPH.
CWR.................0 PERCENT.
MIXING HEIGHT.......400 TO 900 FT AGL.
TRANSPORT WINDS.....SOUTHWEST 20 TO 25 MPH DECREASING TO 15 TO 20
MPH LATE IN THE EVENING, THEN INCREASING TO 25
TO 35 MPH LATE IN THE EVENING INCREASING TO
WEST 40 TO 50 MPH OVERNIGHT.
SMOKE DISPERSAL.....EXCELLENT DECREASING TO POOR.
TIME (MDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY (%).........9 19 23 14 13 14 17 23 22 20 22 18
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CWR.............0 0 0 0 0 0 0 0 0 0 0 0
TEMP............59 56 52 50 48 48 48 48 47 47 47 46
RH..............20 22 26 29 31 33 33 34 35 37 38 42
20 FT WIND DIR..W SW SW SW SW SW SW W W W W W
20 FT WIND SPD..6 6 6 6 6 7 8 9 9 10 10 10
20 FT WIND GUST.21 20 17 17 21 22 24 25 26 28 28 28
MIX HGT (KFT)...7.6 3.0 0.6 0.4 0.4 0.5 0.5 0.5 0.6 0.6 0.6 0.6
TRANSP WIND DIR.W W SW SW SW SW W W W W W W
TRANSP WIND SPD.24 21 16 14 17 24 32 38 43 46 45 43
THURSDAY
SKY/WEATHER.........MOSTLY SUNNY (40-50 PERCENT) THEN BECOMING
MOSTLY CLOUDY (70-80 PERCENT). RAIN SHOWERS
LIKELY IN THE AFTERNOON. SLIGHT CHANCE OF
THUNDERSTORMS LATE IN THE AFTERNOON.
MAX TEMPERATURE.....AROUND 64.
MIN HUMIDITY........25 PERCENT.
WIND (20 FT)........SOUTHWEST WINDS 10 TO 15 MPH SHIFTING TO THE
WEST LATE IN THE AFTERNOON. GUSTS UP TO 32 MPH.
GUSTY AND ERRATIC WINDS EXPECTED NEAR
THUNDERSTORMS LATE IN THE AFTERNOON.
CWR.................30 PERCENT.
MIXING HEIGHT.......8400 TO 8900 FT AGL.
TRANSPORT WINDS.....WEST 30 TO 40 MPH SHIFTING TO THE SOUTHWEST 25
TO 30 MPH LATE IN THE AFTERNOON, THEN SHIFTING
TO THE NORTHWEST LATE IN THE AFTERNOON.
SMOKE DISPERSAL.....VERY GOOD INCREASING TO EXCELLENT LATE IN THE
MORNING, THEN DECREASING TO GOOD LATE IN THE
AFTERNOON.
TIME (MDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........21 28 34 39 39 40 40 46 52 58 68 77
WEATHER COV..... LKY LKY LKY LKY LKY LKY
WEATHER TYPE.... RW RW RW RW RW RW
TSTM COV........ SCH SCH SCH
CWR.............30 30 30 30 30 30 30 30 30 30 30 30
TEMP............45 46 49 51 55 58 61 63 63 63 61 58
RH..............43 42 39 39 34 30 27 25 25 25 28 32
20 FT WIND DIR..SW SW W W W SW SW SW SW SW SW W
20 FT WIND SPD..9 10 12 12 12 10 10 10 10 10 9 8
20 FT WIND GUST.26 29 31 32 32 32 31 31 30 29 26 25
MIX HGT (KFT)...0.6 1.3 2.0 2.8 3.9 5.1 6.3 7.1 8.0 8.9 6.6 4.3
TRANSP WIND DIR.W W W W W SW SW SW SW SW W NW
TRANSP WIND SPD.39 38 36 35 33 32 32 30 28 25 24 24
FORECASTER...SR
REQUESTED BY...RYAN FLYNN
TYPE OF REQUEST...WILDFIRE
.TAG 2610047.4/UNR
.DELDT 04/15/26
.FORMATTERVERSION 2.0.0
.EMAIL JEREMY.DALMAN@USDA.GOV,WAYNE.YANDERS@USDA.GOV,THOMAS.ROERICK@USDA.GOV,SDGPC@FIRENET.GOV
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