854
FNUS73 KUNR 240134
FWSUNR
SPOT FORECAST FOR SCHENK CANYON RX...BLM
NATIONAL WEATHER SERVICE RAPID CITY SD
734 PM MDT THU OCT 23 2025
FORECAST IS BASED ON IGNITION TIME OF 0700 MDT ON OCTOBER 24.
IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE NATIONAL WEATHER
SERVICE.
DISCUSSION
WARM AND DRY CONDITIONS WILL CONTINUE FRIDAY, ALTHOUGH
WINDS WILL BE LIGHT AND TERRAIN-DRIVEN. CLEAR SKIES EXPECTED FRIDAY
WITH A DAYTIME MINIMUM RH AROUND 23-28%. OVERNIGHT RH RECOVERY WILL
BE FAIR (~50%) BY DAYBREAK SATURDAY.
WARMEST (HIGH NEAR 70) AND DRIEST (MINRH IN THE UPPER TEENS) DAY OF
THE WEEK SATURDAY. LIGHTER, TERRAIN-DRIVEN WINDS WILL INCREASE AND
BECOME SOUTH-SOUTHWESTERLY AFTER 1000-1200 SATURDAY, WITH GUSTS UP
TO 18 MPH.
WINDS WILL REMAIN ELEVATED OVERNIGHT SATURDAY (SW AT 5-15 MPH) WITH
OVERNIGHT RH RECOVERY AROUND 50-55%. EXPECT WEST-SOUTWESTERLY WINDS
BY 0900-1000 SUNDAY WITH GUSTS UP TO 20-25 MPH SUNDAY AFTERNOON.
A SYSTEM WILL BRING LIGHT RAIN/SNOW TO THE AREA OVERNIGHT SUNDAY
ALONG WITH A SHIFT TO NW WINDS BY MONDAY MORNING. RAIN/SNOW
ACCUMULATION WILL BE MINIMAL (GENERALLY UNDER 0.05" OF LIQUID).
FRIDAY
SKY/WEATHER.........SUNNY (0-10 PERCENT).
MAX TEMPERATURE.....AROUND 62.
MIN HUMIDITY........23-28 PERCENT.
WIND (20 FT)........TERRAIN-DRIVEN DIURNAL WINDS EXPECTED THROUGHOUT
THE DAY; SUSTAINED AROUND 3-6 MPH WITH OCCASIONAL
GUSTS TO 10-12 MPH AFTER 1100.
CWR.................0 PERCENT.
MIXING HEIGHT.......2900 TO 3400 FT AGL.
TRANSPORT WINDS.....NORTHEAST AROUND 10 MPH SHIFTING TO THE
SOUTHEAST LATE IN THE MORNING, THEN SHIFTING TO
THE SOUTHWEST LATE IN THE MORNING.
SMOKE DISPERSAL.....POOR.
TIME (MDT) 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........7 6 2 6 4 1 1 2 6 7 4
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CWR.............0 0 0 0 0 0 0 0 0 0 0
TEMP............39 43 47 51 54 57 61 62 62 60 56
RH..............54 47 44 38 37 33 29 28 26 28 33
20 FT WIND DIR..NE NE NE S SW SW SW SW SW SW SW
20 FT WIND SPD..3 3 2 2 3 5 6 6 6 5 3
20 FT WIND GUST.7 7 8 8 9 10 12 13 13 12 10
MIX HGT (KFT)...0.5 0.5 0.4 1.0 1.6 2.5 2.8 3.1 3.4 2.6 1.3
TRANSP WIND DIR.NE E E SE S SW SW SW SW SW SW
TRANSP WIND SPD.7 6 5 6 7 8 9 9 9 8 6
FRIDAY NIGHT
SKY/WEATHER.........MOSTLY CLEAR (5-15 PERCENT).
MIN TEMPERATURE.....AROUND 40.
MAX HUMIDITY........50-55 PERCENT.
WIND (20 FT)........SOUTH WINDS AROUND 5 MPH SHIFTING TO THE EAST
EARLY IN THE EVENING, THEN INCREASING TO AROUND
10 MPH IN THE LATE EVENING AND OVERNIGHT.
CONSIDERABLE TERRAIN VARIABILITY.
CWR.................0 PERCENT.
MIXING HEIGHT.......500 TO 1000 FT AGL.
TRANSPORT WINDS.....SOUTH 5 TO 10 MPH SHIFTING TO THE EAST EARLY IN
THE EVENING.
SMOKE DISPERSAL.....POOR.
TIME (MDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY (%).........9 16 9 3 5 5 4 4 5 5 5 6
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CWR.............0 0 0 0 0 0 0 0 0 0 0 0
TEMP............53 51 49 47 46 46 45 44 43 42 41 41
RH..............36 39 41 43 45 46 49 51 51 53 52 53
20 FT WIND DIR..S E E E E E E E E NE NE NE
20 FT WIND SPD..3 3 3 6 6 6 6 6 6 6 6 6
20 FT WIND GUST.9 8 9 9 9 9 10 9 8 7 8 8
MIX HGT (KFT)...0.5 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.5 0.6 0.6
TRANSP WIND DIR.S S E E E E SE E E E E E
TRANSP WIND SPD.5 6 7 8 8 8 8 8 8 8 8 8
SATURDAY
SKY/WEATHER.........SUNNY (10-20 PERCENT).
MAX TEMPERATURE.....AROUND 69.
MIN HUMIDITY........17-21 PERCENT.
WIND (20 FT)........EAST WINDS 5 TO 10 MPH SHIFTING TO THE SOUTH
WITH GUSTS TO AROUND 18 MPH AFTER 1200.
STRONGEST WINDS ON EXPOSED, UPPER SLOPES.
CWR.................0 PERCENT.
MIXING HEIGHT.......3600 TO 4100 FT AGL.
TRANSPORT WINDS.....EAST AROUND 10 MPH SHIFTING TO THE SOUTH LATE
IN THE MORNING, THEN SHIFTING TO THE SOUTHWEST
15 TO 20 MPH IN THE AFTERNOON SHIFTING TO THE
SOUTHEAST LATE IN THE AFTERNOON.
SMOKE DISPERSAL.....FAIR.
TIME (MDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........6 5 5 4 4 4 4 7 11 14 19 24
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CWR.............0 0 0 0 0 0 0 0 0 0 0 0
TEMP............41 44 47 50 53 57 60 64 66 67 65 61
RH..............49 48 44 41 36 30 27 24 21 20 23 26
20 FT WIND DIR..NE E SE SE S S SW SW S S S S
20 FT WIND SPD..6 5 5 5 5 6 7 8 9 10 9 9
20 FT WIND GUST.9 8 7 7 9 12 14 16 17 18 18 17
MIX HGT (KFT)...0.6 0.5 0.5 0.5 1.3 2.0 2.6 3.1 3.6 4.1 2.9 1.6
TRANSP WIND DIR.E E SE SE S S SW SW SW SW S SE
TRANSP WIND SPD.8 7 6 6 8 9 12 14 16 16 16 15
FORECASTER...SE
REQUESTED BY...NATE WIEDOW
TYPE OF REQUEST...PRESCRIBED
.TAG 2524397.0/UNR
.DELDT 10/23/25
.FORMATTERVERSION 2.0.0
.EMAIL NWIEDOW@BLM.GOV
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