507  
FNUS74 KOUN 091829  
FWSOUN  
 
SPOT FORECAST FOR RX 26-A-09...FORT SILL FIRE DEPARTMENT  
NATIONAL WEATHER SERVICE NORMAN OK  
129 PM CDT THU APR 9 2026  
 
FORECAST IS BASED ON IGNITION TIME OF 1000 CDT ON APRIL 10.  
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER  
SERVICE.  
 
PLEASE CONTACT OUR OFFICE AT (405) 325-3816 IF YOU HAVE QUESTIONS  
OR CONCERNS WITH THIS FORECAST.  
   
DISCUSSION  
 
RH IS EXPECTED TO BE BETWEEN 75 AND 90 PERCENT AT IGNITION TIME.  
SOUTHERLY WINDS WILL BECOME BREEZY FRIDAY AFTERNOON. MINIMUM RH IS  
EXPECTED TO BE NEAR 50 TO 60 PERCENT FRIDAY AFTERNOON.  
 
EXCELLENT RH RECOVERY AGAIN FRIDAY NIGHT (NEAR 100 PERCENT) WITH  
LIGHT SOUTH TO SOUTH SOUTHEAST WINDS.  
   
FRIDAY  
 
SKY/WEATHER.........MOSTLY CLOUDY THEN BECOMING PARTLY SUNNY LATE  
IN THE MORNING THEN BECOMING MOSTLY SUNNY THEN  
BECOMING SUNNY LATE IN THE AFTERNOON THEN  
BECOMING MOSTLY SUNNY.  
MAX TEMPERATURE.....AROUND 80.  
MIN HUMIDITY........51 PERCENT.  
WIND (20 FT)........SOUTH WINDS 10 TO 15 MPH.  
MIXING HEIGHT.......4900 FT AGL.  
TRANSPORT WINDS.....SOUTH 15 TO 17 MPH.  
SMOKE DISPERSAL.....FAIR TO EXCELLENT (29100-68900 KNOT-FT).  
 
TIME (CDT) 10A 11A 12P 1PM 2PM 3PM 4PM 5PM  
SKY (%).........75 65 57 44 23 22 18 37  
WEATHER COV.....  
WEATHER TYPE....  
TSTM COV........  
TEMP............67 70 73 74 77 79 79 80  
RH..............84 76 68 66 60 54 52 51  
20 FT WIND DIR..S S S S S S S S  
20 FT WIND SPD..10 12 13 13 13 14 14 15  
20 FT WIND GUST.17 20 21 21 21 23 23 24  
MIX HGT (KFT)...1.9 2.6 3.1 3.5 3.9 4.2 4.9 4.5  
TRANSP WIND DIR.S S S S S S S S  
TRANSP WIND SPD.17 17 17 15 15 15 16 17  
VRATE KTFT/1000.29 39 46 46 51 55 69 68  
   
FRIDAY NIGHT  
 
SKY/WEATHER.........MOSTLY CLEAR THEN BECOMING MOSTLY CLOUDY.  
SLIGHT CHANCE OF SHOWERS OVERNIGHT. SLIGHT  
CHANCE OF THUNDERSTORMS AFTER 3 AM.  
MIN TEMPERATURE.....AROUND 60.  
MAX HUMIDITY........97 PERCENT.  
WIND (20 FT)........SOUTH WINDS 8 TO 15 MPH. GUSTY AND ERRATIC  
WINDS EXPECTED NEAR THUNDERSTORMS AFTER 3 AM.  
MIXING HEIGHT.......0 FT AGL.  
TRANSPORT WINDS.....SOUTH 15 TO 21 MPH.  
SMOKE DISPERSAL.....POOR TO EXCELLENT (0-73300 KNOT-FT).  
 
TIME (CDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM  
SKY (%).........16 25 39 37 35 39 44 48 52 56 60 67  
WEATHER COV..... SCH SCH SCH SCH SCH  
WEATHER TYPE.... RW RW RW RW RW  
TSTM COV........ SCH SCH  
TEMP............79 78 75 70 67 66 66 65 64 63 62 62  
RH..............52 54 60 71 78 81 81 84 87 90 93 93  
20 FT WIND DIR..S S S S SE SE S S S S S S  
20 FT WIND SPD..15 14 13 12 10 9 9 9 9 8 8 8  
20 FT WIND GUST.24 23 21 20 17 16 16 16 16 14 14 14  
MIX HGT (KFT)...3.8 4.1 0.7 0.1 0.7 0.7 0.7 0.6 0.7 0.7 0.8 0.7  
TRANSP WIND DIR.S S S S SE S S S S S S S  
TRANSP WIND SPD.18 21 20 18 18 17 16 15 15 16 16 15  
VRATE KTFT/1000.61 73 12 0 12 10 9 8 9 10 11 9  
 
 
FORECASTER...DAY  
REQUESTED BY...STEVEN CUSUMANO  
TYPE OF REQUEST...PRESCRIBED  
.TAG 2609847.0/OUN  
.DELDT 04/09/26  
.FORMATTERVERSION 2.0.0  
.EMAIL STEVEN.J.CUSUMANO.CIV@ARMY.MIL  
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