750
FNUS73 KUNR 241245
FWSUNR
SPOT FORECAST FOR LOOKOUT FLATS RX...NPS
NATIONAL WEATHER SERVICE RAPID CITY SD
645 AM MDT FRI OCT 24 2025
FORECAST IS BASED ON IGNITION TIME OF 0700 MDT ON OCTOBER 24.
IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE NATIONAL WEATHER
SERVICE.
DISCUSSION
LIGHT, TERRAIN DRIVEN WINDS EXPECTED TODAY WITH WARM
AND DRY CONDITIONS. SKIES WILL BE CLEAR WITH A DAYTIME MINIMUM RH
AROUND 24-28%. OVERNIGHT RH RECOVERY WILL BE FAIR (~47%) BY DAYBREAK
SATURDAY.
SATURDAY WILL BE THE WARMEST (HIGHS AROUND 70) AND DRIEST
(MINRH IN THE LOW 20S) DAY. LIGHTER, TERRAIN-DRIVEN WINDS WILL
INCREASE AND BECOME SOUTH-SOUTHWESTERLY AFTER 1000-1200 SATURDAY,
WITH GUSTS UP TO 20 MPH.
WINDS WILL REMAIN ELEVATED OVERNIGHT SATURDAY (SW AT 5-10 MPH) WITH
OVERNIGHT RH RECOVERY AROUND 45-50%. WINDS ON SUNDAY WILL BECOME
WESTERLY AT 5 TO 15 MPH AS A SYSTEM MOVES THROUGH THE AREA. THERE WILL
BE A CHANCE FOR RAIN SHOWERS SUNDAY NIGHT (30-40%) WITH WINDS
SHIFTING TO THE NORTHWEST BY MONDAY MORNING. RAIN ACCUMULATION
WILL BE MINIMAL (GENERALLY UNDER 0.05" OF LIQUID).
REST OF TODAY
SKY/WEATHER.........SUNNY (0-10 PERCENT).
MAX TEMPERATURE.....AROUND 65.
MIN HUMIDITY........24-28 PERCENT.
WIND (20 FT)........TERRAIN-DRIVEN DIURNAL WINDS EXPECTED THROUGHOUT
THE DAY; SUSTAINED AROUND 5-7 MPH WITH OCCASIONAL
GUSTS TO 10-15 MPH.
CWR.................0 PERCENT.
MIXING HEIGHT.......4000 TO 4500 FT AGL.
TRANSPORT WINDS.....NORTHWEST AROUND 10 MPH SHIFTING TO THE
SOUTHWEST LATE IN THE MORNING.
SMOKE DISPERSAL.....FAIR.
TIME (MDT) 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........5 7 4 0 5 3 4 4 6 6 4
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CWR.............0 0 0 0 0 0 0 0 0 0 0
TEMP............36 39 43 48 54 61 62 64 65 63 62
RH..............69 62 53 44 35 28 27 25 24 25 27
20 FT WIND DIR..NW NW NW W SW S S S S S S
20 FT WIND SPD..6 5 5 5 6 6 6 6 7 6 6
20 FT WIND GUST.10 9 9 9 12 13 14 15 15 14 13
MIX HGT (KFT)...0.5 0.4 0.4 1.1 2.2 2.9 3.4 3.8 4.5 3.5 1.7
TRANSP WIND DIR.NW NW NW W SW S S SW SW SW SW
TRANSP WIND SPD.9 8 8 9 10 12 13 13 13 12 10
TONIGHT
SKY/WEATHER.........MOSTLY CLEAR (5-15 PERCENT).
MIN TEMPERATURE.....AROUND 45.
MAX HUMIDITY........47 PERCENT.
WIND (20 FT)........SOUTH WINDS AROUND 5 MPH SHIFTING TO THE
SOUTHWEST EARLY IN THE EVENING, THEN SHIFTING
TO THE WEST WITH GUSTS TO AROUND 15 MPH EARLY
IN THE EVENING. CONSIDERABLE TERRAIN VARIABILITY.
CWR.................0 PERCENT.
MIXING HEIGHT.......400 TO 900 FT AGL.
TRANSPORT WINDS.....WEST 10 TO 15 MPH.
SMOKE DISPERSAL.....POOR.
TIME (MDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY (%).........6 7 7 9 9 13 5 6 4 4 5 3
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CWR.............0 0 0 0 0 0 0 0 0 0 0 0
TEMP............58 52 51 50 49 48 48 47 47 47 47 47
RH..............32 41 42 42 44 44 44 45 45 47 45 45
20 FT WIND DIR..S SW W W W W W W W W W W
20 FT WIND SPD..5 3 5 6 6 6 7 7 8 8 8 8
20 FT WIND GUST.10 9 9 12 12 13 14 14 14 15 15 15
MIX HGT (KFT)...0.4 0.4 0.5 0.4 0.4 0.5 0.5 0.5 0.5 0.5 0.5 0.5
TRANSP WIND DIR.SW SW W W W W W W W W W W
TRANSP WIND SPD.9 9 9 10 12 12 13 13 14 14 14 14
SATURDAY
SKY/WEATHER.........SUNNY (0-10 PERCENT).
MAX TEMPERATURE.....AROUND 70.
MIN HUMIDITY........21 PERCENT.
WIND (20 FT)........WEST WINDS AROUND 10 MPH SHIFTING TO THE
SOUTHWEST LATE IN THE MORNING. GUSTS UP TO 22
MPH.
CWR.................0 PERCENT.
MIXING HEIGHT.......3400 TO 3900 FT AGL.
TRANSPORT WINDS.....SOUTHWEST 15 TO 20 MPH.
SMOKE DISPERSAL.....GOOD.
TIME (MDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........5 4 8 3 2 3 3 4 4 5 8 10
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CWR.............0 0 0 0 0 0 0 0 0 0 0 0
TEMP............46 47 50 53 59 63 65 68 69 69 67 64
RH..............47 44 41 38 30 26 24 21 21 21 22 25
20 FT WIND DIR..W W W W SW SW SW SW S S S S
20 FT WIND SPD..8 8 7 7 8 9 10 10 10 10 9 8
20 FT WIND GUST.15 15 15 15 16 18 20 21 22 22 20 17
MIX HGT (KFT)...0.5 0.4 0.4 0.4 1.1 1.7 2.4 2.9 3.4 3.9 2.8 1.6
TRANSP WIND DIR.W W W W W SW SW SW SW SW SW S
TRANSP WIND SPD.14 14 13 13 15 16 18 20 20 20 17 15
FORECASTER...EW
REQUESTED BY...KENN PERREAULT
TYPE OF REQUEST...PRESCRIBED
.TAG 2524203.3/UNR
.DELDT 10/24/25
.FORMATTERVERSION 2.0.0
.EMAIL DAN_SWANSON@NPS.GOV,KENN_PERREAULT@NPS.GOV
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