362
FNUS73 KUNR 092107
FWSUNR
SPOT FORECAST FOR NEEDLES...PINE RIDGE AGENCY
NATIONAL WEATHER SERVICE RAPID CITY SD
307 PM MDT WED SEP 9 2026
FORECAST IS BASED ON FORECAST START TIME OF 0600 MDT ON SEPTEMBER 10.
IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE NATIONAL WEATHER
SERVICE.
DISCUSSION
ELEVATED TO NEAR-CRITICAL FIRE WEATHER IS EXPECTED
OVER THE NEXT 48 HOURS AS CONDITIONS TREND WARMER AND DRIER.
THURSDAY, MINIMUM RELATIVE HUMIDITY VALUES WILL DROP TO ABOUT 14
PERCENT AND SOUTHWEST WINDS WILL GUST AS HIGH AS 20 TO 25 MPH
DURING THE DAY, BEFORE INCREASING TO 30 TO 35 MPH LATE THURSDAY
NIGHT. SMOKE DISPERSAL WILL BE GOOD INCREASING TO VERY GOOD LATE
IN THE AFTERNOON, THEN DROP TO POOR THURSDAY NIGHT. RELATIVE
HUMIDITY RECOVERY WILL BE POOR THURSDAY NIGHT INTO FRIDAY MORNING.
FRIDAY, MINIMUM RELATIVE HUMIDITY VALUES WILL DROP TO ABOUT 17
PERCENT AND SOUTHWEST WINDS WILL SLOWLY SHIFT TO THE WEST, THEN
NORTHWEST, GUSTING TO AROUND 30 TO 35 MPH THROUGHOUT THE DAY.
FORECAST CONFIDENCE IS HIGH IN NO PRECIPITATION THURSDAY, WITH
THE NEXT CHANCE OF RAIN NOT ARRIVING UNTIL AT LEAST FRIDAY
EVENING, IF NOT SATURDAY EVENING.
THURSDAY
SKY/WEATHER.........SUNNY (5-15 PERCENT).
MAX TEMPERATURE.....AROUND 90.
MIN HUMIDITY........14 PERCENT.
WIND (20 FT)........SOUTHWEST WINDS 10 TO 15 MPH WITH GUSTS TO
AROUND 21 MPH.
CWR.................0 PERCENT.
MIXING HEIGHT.......7900 TO 8400 FT AGL.
TRANSPORT WINDS.....SOUTHWEST 15 TO 20 MPH.
SMOKE DISPERSAL.....GOOD INCREASING TO VERY GOOD LATE IN THE
AFTERNOON.
TIME (MDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........7 14 3 6 3 4 3 3 6 7 12 10
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CWR.............0 0 0 0 0 0 0 0 0 0 0 0
TEMP............49 51 56 61 69 74 79 84 86 88 89 88
RH..............100 96 82 70 50 39 30 24 20 17 15 14
20 FT WIND DIR..S S S SW SW SW SW SW SW SW SW SW
20 FT WIND SPD..12 12 12 13 13 12 12 12 12 12 12 9
20 FT WIND GUST.16 17 18 18 18 17 17 18 20 21 20 17
MIX HGT (KFT)...0.5 0.4 0.5 0.9 1.3 2.6 4.3 6.0 7.2 8.4 6.1 3.7
TRANSP WIND DIR.SW SW SW SW SW SW SW SW SW SW SW SW
TRANSP WIND SPD.16 17 17 18 18 17 17 18 20 20 17 14
THURSDAY NIGHT
SKY/WEATHER.........PARTLY CLOUDY (20-30 PERCENT) THEN BECOMING
MOSTLY CLOUDY (55-65 PERCENT).
MIN TEMPERATURE.....AROUND 62.
MAX HUMIDITY........36 PERCENT.
WIND (20 FT)........SOUTH WINDS AROUND 10 MPH WITH GUSTS TO AROUND
13 MPH INCREASING TO 20 TO 25 MPH WITH GUSTS TO
AROUND 32 MPH.
CWR.................0 PERCENT.
MIXING HEIGHT.......500 TO 1000 FT AGL.
TRANSPORT WINDS.....SOUTH 15 TO 25 MPH INCREASING TO 30 TO 35 MPH
LATE IN THE EVENING.
SMOKE DISPERSAL.....POOR.
TIME (MDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY (%).........9 4 19 14 14 24 27 23 17 27 47 60
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CWR.............0 0 0 0 0 0 0 0 0 0 0 0
TEMP............86 81 75 70 69 69 69 68 67 65 64 64
RH..............18 18 23 26 28 31 34 36 36 35 34 30
20 FT WIND DIR..SW S S S S S S S S S SW SW
20 FT WIND SPD..6 7 9 12 16 20 22 22 23 23 24 24
20 FT WIND GUST.13 12 14 17 22 29 31 31 31 30 31 32
MIX HGT (KFT)...1.4 1.1 0.8 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5
TRANSP WIND DIR.SW S S S S S S S S SW SW SW
TRANSP WIND SPD.13 13 14 17 22 26 30 31 31 31 31 31
FRIDAY
SKY/WEATHER.........MOSTLY SUNNY (45-55 PERCENT) THEN BECOMING
CLOUDY (90-100 PERCENT) THEN BECOMING MOSTLY
SUNNY (30-40 PERCENT).
MAX TEMPERATURE.....AROUND 89.
MIN HUMIDITY........17 PERCENT.
WIND (20 FT)........SOUTHWEST WINDS AROUND 25 MPH SHIFTING TO THE
NORTHWEST LATE IN THE AFTERNOON. GUSTS UP TO 35
MPH.
CWR.................0 PERCENT.
MIXING HEIGHT.......9600 TO 10100 FT AGL.
TRANSPORT WINDS.....WEST AROUND 35 MPH SHIFTING TO THE NORTH LATE
IN THE AFTERNOON.
SMOKE DISPERSAL.....VERY GOOD INCREASING TO EXCELLENT IN THE
AFTERNOON.
TIME (MDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........49 96 64 31 24 16 9 11 12 14 25 37
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CWR.............0 0 0 0 0 0 0 0 0 0 0 0
TEMP............63 63 65 69 74 80 84 86 88 87 86 83
RH..............28 27 26 25 22 20 18 18 17 18 18 19
20 FT WIND DIR..SW SW SW SW W W W W W NW NW N
20 FT WIND SPD..24 24 23 22 22 22 22 22 22 22 22 22
20 FT WIND GUST.32 33 33 33 33 35 35 35 35 35 35 33
MIX HGT (KFT)...0.5 0.8 1.0 1.3 2.5 3.7 4.9 6.6 8.4 10 7.8 5.5
TRANSP WIND DIR.SW SW SW W W W W W W W NW N
TRANSP WIND SPD.31 32 32 32 33 33 33 33 33 33 33 33
FORECASTER...CS
REQUESTED BY...THOMAS SKINNER PSC3
TYPE OF REQUEST...WILDFIRE
.TAG 2621532.0/UNR
.DELDT 09/09/26
.FORMATTERVERSION 2.0.0
.EMAIL TAMARA_RANDALL@FIRENET.GOV,THOMAS_SKINNER@FIRENET.GOV
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