193  
FNUS73 KUNR 121652  
FWSUNR  
 
SPOT FORECAST FOR NEEDLE...PINE RIDGE  
NATIONAL WEATHER SERVICE RAPID CITY SD  
1052 AM MDT SAT SEP 12 2026  
 
FORECAST IS BASED ON FORECAST START TIME OF 1235 MDT ON SEPTEMBER 12.  
IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE NATIONAL WEATHER  
SERVICE.  
   
DISCUSSION
 
TODAY WILL BE MUCH COOLER COMPARED TO PREVIOUS DAYS,  
WITH HIGHS IN THE MID 70S. MINIMUM RELATIVE HUMIDITY VALUES WILL  
FALL TO AROUND 30 PERCENT UNDER MOSTLY SUNNY SKIES. WINDS WILL BE  
SOUTHEAST AT 10 TO 15 MPH WITH GUSTS TO AROUND 20 MPH DURING THE  
AFTERNOON.  
 
THE NEXT CHANCE FOR A WETTING RAIN WILL OCCUR DURING THE EVENING  
AND OVERNIGHT HOURS SUNDAY.  
 
   
REST OF TODAY
 
 
SKY/WEATHER.........MOSTLY SUNNY (25-35 PERCENT).  
MAX TEMPERATURE.....AROUND 75.  
MIN HUMIDITY........28 PERCENT.  
WIND (20 FT)........EAST WINDS AROUND 10 MPH SHIFTING TO THE  
SOUTHEAST WITH GUSTS TO AROUND 18 MPH LATE IN  
THE AFTERNOON.  
CWR.................0 PERCENT.  
MIXING HEIGHT.......5200 TO 5700 FT AGL.  
TRANSPORT WINDS.....SOUTHEAST 10 TO 20 MPH.  
SMOKE DISPERSAL.....GOOD.  
 
TIME (MDT) 12P 1PM 2PM 3PM 4PM 5PM  
SKY (%).........14 17 25 31 47 49  
WEATHER COV.....  
WEATHER TYPE....  
TSTM COV........  
CWR.............0 0 0 0 0 0  
TEMP............65 68 70 73 74 74  
RH..............45 40 35 31 32 32  
20 FT WIND DIR..E E SE SE SE SE  
20 FT WIND SPD..6 7 7 8 9 10  
20 FT WIND GUST.7 10 16 17 18  
MIX HGT (KFT)...4.1 4.7 5.2 5.7 5.4 5.1  
TRANSP WIND DIR.E SE SE SE SE SE  
TRANSP WIND SPD.9 12 13 15 16 17  
   
TONIGHT
 
 
SKY/WEATHER.........PARTLY CLOUDY (40-50 PERCENT) THEN BECOMING  
MOSTLY CLOUDY (60-70 PERCENT).  
MIN TEMPERATURE.....AROUND 53.  
MAX HUMIDITY........89 PERCENT.  
WIND (20 FT)........EAST WINDS 15 TO 20 MPH WITH GUSTS TO AROUND 24  
MPH.  
CWR.................0 PERCENT.  
MIXING HEIGHT.......500 TO 1000 FT AGL.  
TRANSPORT WINDS.....SOUTHEAST 20 TO 25 MPH.  
SMOKE DISPERSAL.....POOR.  
 
TIME (MDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM  
SKY (%).........48 40 37 38 50 43 38 46 55 59 74 79  
WEATHER COV.....  
WEATHER TYPE....  
TSTM COV........  
CWR.............0 0 0 0 0 0 0 0 0 0 0 0  
TEMP............72 69 65 63 61 60 59 57 57 55 54 53  
RH..............28 35 42 44 53 57 64 66 65 69 77 79  
20 FT WIND DIR..SE E E E SE SE SE E E E E E  
20 FT WIND SPD..12 13 15 16 16 15 15 14 14 14 15 15  
20 FT WIND GUST.20 20 23 24 23 23 22 21 20 18 21 21  
MIX HGT (KFT)...4.1 0.9 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.6 0.6  
TRANSP WIND DIR.SE SE E E E SE SE SE SE SE SE E  
TRANSP WIND SPD.18 21 23 24 24 24 23 22 21 20 20 22  
   
SUNDAY
 
 
SKY/WEATHER.........MOSTLY CLOUDY (65-75 PERCENT) THEN BECOMING  
PARTLY SUNNY (50-60 PERCENT) THEN BECOMING  
CLOUDY (85-95 PERCENT).  
MAX TEMPERATURE.....AROUND 74.  
MIN HUMIDITY........43 PERCENT.  
WIND (20 FT)........EAST WINDS 20 TO 25 MPH WITH GUSTS TO AROUND 31  
MPH.  
CWR.................0 PERCENT.  
MIXING HEIGHT.......2600 TO 3100 FT AGL.  
TRANSPORT WINDS.....SOUTHEAST 25 TO 35 MPH.  
SMOKE DISPERSAL.....GOOD.  
 
TIME (MDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM  
SKY (%).........79 88 75 64 54 56 44 55 62 61 91 85  
WEATHER COV.....  
WEATHER TYPE....  
TSTM COV........  
CWR.............0 0 0 0 0 0 0 0 0 0 0 0  
TEMP............53 54 55 58 61 64 66 69 71 73 73 72  
RH..............80 81 78 71 64 58 53 48 45 44 44 43  
20 FT WIND DIR..E E E E E E E E E SE SE SE  
20 FT WIND SPD..16 16 17 17 18 18 18 20 20 21 22 23  
20 FT WIND GUST.22 22 24 24 25 25 25 26 26 29 30 31  
MIX HGT (KFT)...0.7 1.1 1.5 1.9 2.2 2.6 2.9 3.0 3.1 3.1 3.0 2.8  
TRANSP WIND DIR.E E SE SE SE SE SE SE SE SE SE SE  
TRANSP WIND SPD.23 24 24 25 25 25 26 28 29 30 31 32  
 

 
FORECASTER...DH  
REQUESTED BY...COLYNN CONDON  
TYPE OF REQUEST...WILDFIRE  
.TAG 2621329.1/UNR  
.DELDT 09/12/26  
.FORMATTERVERSION 2.0.0  
.EMAIL COLYNN.CONDON@BIA.GOV,TAMARA.RANDAL@BIA.GOV,DARREL.SPOTEDELK@BIA.GOV  
 
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